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- /* vms.c
- *
- * VMS-specific routines for perl5
- *
- * Last revised: 09-Mar-1995 by Charles Bailey bailey@genetics.upenn.edu
- */
-
- #include <acedef.h>
- #include <acldef.h>
- #include <armdef.h>
- #include <atrdef.h>
- #include <chpdef.h>
- #include <descrip.h>
- #include <dvidef.h>
- #include <fibdef.h>
- #include <float.h>
- #include <fscndef.h>
- #include <iodef.h>
- #include <jpidef.h>
- #include <libdef.h>
- #include <lib$routines.h>
- #include <lnmdef.h>
- #include <prvdef.h>
- #include <psldef.h>
- #include <rms.h>
- #include <shrdef.h>
- #include <ssdef.h>
- #include <starlet.h>
- #include <stsdef.h>
- #include <syidef.h>
- #include <uaidef.h>
- #include <uicdef.h>
-
- #include "EXTERN.h"
- #include "perl.h"
- #include "XSUB.h"
-
- struct itmlst_3 {
- unsigned short int buflen;
- unsigned short int itmcode;
- void *bufadr;
- unsigned short int *retlen;
- };
-
- static char *
- my_trnlnm(char *lnm, char *eqv)
- {
- static char __my_trnlnm_eqv[LNM$C_NAMLENGTH+1];
- unsigned short int eqvlen;
- unsigned long int retsts, attr = LNM$M_CASE_BLIND;
- $DESCRIPTOR(tabdsc,"LNM$FILE_DEV");
- struct dsc$descriptor_s lnmdsc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,0};
- struct itmlst_3 lnmlst[2] = {{LNM$C_NAMLENGTH, LNM$_STRING,0, &eqvlen},
- {0, 0, 0, 0}};
-
- if (!eqv) eqv = __my_trnlnm_eqv;
- lnmlst[0].bufadr = (void *)eqv;
- lnmdsc.dsc$a_pointer = lnm;
- lnmdsc.dsc$w_length = strlen(lnm);
- retsts = sys$trnlnm(&attr,&tabdsc,&lnmdsc,0,lnmlst);
- if (retsts == SS$_NOLOGNAM || retsts == SS$_IVLOGNAM) return Nullch;
- else if (retsts & 1) {
- eqv[eqvlen] = '\0';
- return eqv;
- }
- _ckvmssts(retsts); /* Must be an error */
- return Nullch; /* Not reached, assuming _ckvmssts() bails out */
- }
-
- /* my_getenv
- * Translate a logical name. Substitute for CRTL getenv() to avoid
- * memory leak, and to keep my_getenv() and my_setenv() in the same
- * domain (mostly - my_getenv() need not return a translation from
- * the process logical name table)
- *
- * Note: Uses static buffer -- not thread-safe!
- */
- /*{{{ char *my_getenv(char *lnm)*/
- char *
- my_getenv(char *lnm)
- {
- static char __my_getenv_eqv[LNM$C_NAMLENGTH+1];
- char uplnm[LNM$C_NAMLENGTH], *cp1, *cp2;
-
- for (cp1 = lnm, cp2= uplnm; *cp1; cp1++, cp2++) *cp2 = _toupper(*cp1);
- *cp2 = '\0';
- if (cp1 - lnm == 7 && !strncmp(uplnm,"DEFAULT",7)) {
- getcwd(__my_getenv_eqv,sizeof __my_getenv_eqv);
- return __my_getenv_eqv;
- }
- else if (my_trnlnm(uplnm,__my_getenv_eqv) != NULL) {
- return __my_getenv_eqv;
- }
- else {
- unsigned long int retsts;
- struct dsc$descriptor_s symdsc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,0},
- valdsc = {sizeof __my_getenv_eqv,DSC$K_DTYPE_T,
- DSC$K_CLASS_S, __my_getenv_eqv};
- symdsc.dsc$w_length = cp1 - lnm;
- symdsc.dsc$a_pointer = uplnm;
- retsts = lib$get_symbol(&symdsc,&valdsc,&(valdsc.dsc$w_length),0);
- if (retsts == LIB$_INVSYMNAM) return Nullch;
- if (retsts != LIB$_NOSUCHSYM) {
- /* We want to return only logical names or CRTL Unix emulations */
- if (retsts & 1) return Nullch;
- _ckvmssts(retsts);
- }
- else return getenv(lnm); /* Try for CRTL emulation of a Unix/POSIX name */
- }
- return Nullch;
-
- } /* end of my_getenv() */
- /*}}}*/
-
- /*{{{ void my_setenv(char *lnm, char *eqv)*/
- void
- my_setenv(char *lnm,char *eqv)
- /* Define a supervisor-mode logical name in the process table.
- * In the future we'll add tables, attribs, and acmodes,
- * probably through a different call.
- */
- {
- char uplnm[LNM$C_NAMLENGTH], *cp1, *cp2;
- unsigned long int retsts, usermode = PSL$C_USER;
- $DESCRIPTOR(tabdsc,"LNM$PROCESS");
- struct dsc$descriptor_s lnmdsc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,uplnm},
- eqvdsc = {0,DSC$K_DTYPE_T,DSC$K_CLASS_S,0};
-
- for(cp1 = lnm, cp2 = uplnm; *cp1; cp1++, cp2++) *cp2 = _toupper(*cp1);
- lnmdsc.dsc$w_length = cp1 - lnm;
-
- if (!eqv || !*eqv) { /* we're deleting a logical name */
- retsts = sys$dellnm(&tabdsc,&lnmdsc,&usermode); /* try user mode first */
- if (retsts == SS$_IVLOGNAM) return;
- if (retsts != SS$_NOLOGNAM) _ckvmssts(retsts);
- if (!(retsts & 1)) {
- retsts = lib$delete_logical(&lnmdsc,&tabdsc); /* then supervisor mode */
- if (retsts != SS$_NOLOGNAM) _ckvmssts(retsts);
- }
- }
- else {
- eqvdsc.dsc$w_length = strlen(eqv);
- eqvdsc.dsc$a_pointer = eqv;
-
- _ckvmssts(lib$set_logical(&lnmdsc,&eqvdsc,&tabdsc,0,0));
- }
-
- } /* end of my_setenv() */
- /*}}}*/
-
- static char *do_fileify_dirspec(char *, char *, int);
- static char *do_tovmsspec(char *, char *, int);
-
- /*{{{int do_rmdir(char *name)*/
- int
- do_rmdir(char *name)
- {
- char dirfile[NAM$C_MAXRSS+1];
- int retval;
- struct stat st;
-
- if (do_fileify_dirspec(name,dirfile,0) == NULL) return -1;
- if (flex_stat(dirfile,&st) || !S_ISDIR(st.st_mode)) retval = -1;
- else retval = kill_file(dirfile);
- return retval;
-
- } /* end of do_rmdir */
- /*}}}*/
-
- /* kill_file
- * Delete any file to which user has control access, regardless of whether
- * delete access is explicitly allowed.
- * Limitations: User must have write access to parent directory.
- * Does not block signals or ASTs; if interrupted in midstream
- * may leave file with an altered ACL.
- * HANDLE WITH CARE!
- */
- /*{{{int kill_file(char *name)*/
- int
- kill_file(char *name)
- {
- char vmsname[NAM$C_MAXRSS+1];
- unsigned long int jpicode = JPI$_UIC, type = ACL$C_FILE;
- unsigned long int cxt = 0, aclsts, fndsts, rmsts = -1;
- struct dsc$descriptor_s fildsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
- struct myacedef {
- unsigned char myace$b_length;
- unsigned char myace$b_type;
- unsigned short int myace$w_flags;
- unsigned long int myace$l_access;
- unsigned long int myace$l_ident;
- } newace = { sizeof(struct myacedef), ACE$C_KEYID, 0,
- ACE$M_READ | ACE$M_WRITE | ACE$M_DELETE | ACE$M_CONTROL, 0},
- oldace = { sizeof(struct myacedef), ACE$C_KEYID, 0, 0, 0};
- struct itmlst_3
- findlst[3] = {{sizeof oldace, ACL$C_FNDACLENT, &oldace, 0},
- {sizeof oldace, ACL$C_READACE, &oldace, 0},{0,0,0,0}},
- addlst[2] = {{sizeof newace, ACL$C_ADDACLENT, &newace, 0},{0,0,0,0}},
- dellst[2] = {{sizeof newace, ACL$C_DELACLENT, &newace, 0},{0,0,0,0}},
- lcklst[2] = {{sizeof newace, ACL$C_WLOCK_ACL, &newace, 0},{0,0,0,0}},
- ulklst[2] = {{sizeof newace, ACL$C_UNLOCK_ACL, &newace, 0},{0,0,0,0}};
-
- if (!remove(name)) return 0; /* Can we just get rid of it? */
-
- /* No, so we get our own UIC to use as a rights identifier,
- * and the insert an ACE at the head of the ACL which allows us
- * to delete the file.
- */
- _ckvmssts(lib$getjpi(&jpicode,0,0,&(oldace.myace$l_ident),0,0));
- if (do_tovmsspec(name,vmsname,0) == NULL) return -1;
- fildsc.dsc$w_length = strlen(vmsname);
- fildsc.dsc$a_pointer = vmsname;
- cxt = 0;
- newace.myace$l_ident = oldace.myace$l_ident;
- if (!((aclsts = sys$change_acl(0,&type,&fildsc,lcklst,0,0,0)) & 1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(aclsts);
- return -1;
- }
- /* Grab any existing ACEs with this identifier in case we fail */
- aclsts = fndsts = sys$change_acl(0,&type,&fildsc,findlst,0,0,&cxt);
- if ( fndsts & 1 || fndsts == SS$_ACLEMPTY || fndsts == SS$_NOENTRY) {
- /* Add the new ACE . . . */
- if (!((aclsts = sys$change_acl(0,&type,&fildsc,addlst,0,0,0)) & 1))
- goto yourroom;
- if ((rmsts = remove(name))) {
- /* We blew it - dir with files in it, no write priv for
- * parent directory, etc. Put things back the way they were. */
- if (!((aclsts = sys$change_acl(0,&type,&fildsc,dellst,0,0,0)) & 1))
- goto yourroom;
- if (fndsts & 1) {
- addlst[0].bufadr = &oldace;
- if (!((aclsts = sys$change_acl(0,&type,&fildsc,addlst,0,0,&cxt)) & 1))
- goto yourroom;
- }
- }
- }
-
- yourroom:
- if (rmsts) {
- fndsts = sys$change_acl(0,&type,&fildsc,ulklst,0,0,0);
- if (aclsts & 1) aclsts = fndsts;
- }
- if (!(aclsts & 1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(aclsts);
- return -1;
- }
-
- return rmsts;
-
- } /* end of kill_file() */
- /*}}}*/
-
- /* my_utime - update modification time of a file
- * calling sequence is identical to POSIX utime(), but under
- * VMS only the modification time is changed; ODS-2 does not
- * maintain access times. Restrictions differ from the POSIX
- * definition in that the time can be changed as long as the
- * caller has permission to execute the necessary IO$_MODIFY $QIO;
- * no separate checks are made to insure that the caller is the
- * owner of the file or has special privs enabled.
- * Code here is based on Joe Meadows' FILE utility.
- */
-
- /* Adjustment from Unix epoch (01-JAN-1970 00:00:00.00)
- * to VMS epoch (01-JAN-1858 00:00:00.00)
- * in 100 ns intervals.
- */
- static const long int utime_baseadjust[2] = { 0x4beb4000, 0x7c9567 };
-
- /*{{{int my_utime(char *path, struct utimbuf *utimes)*/
- int my_utime(char *file, struct utimbuf *utimes)
- {
- register int i;
- long int bintime[2], len = 2, lowbit, unixtime,
- secscale = 10000000; /* seconds --> 100 ns intervals */
- unsigned long int chan, iosb[2], retsts;
- char vmsspec[NAM$C_MAXRSS+1], rsa[NAM$C_MAXRSS], esa[NAM$C_MAXRSS];
- struct FAB myfab = cc$rms_fab;
- struct NAM mynam = cc$rms_nam;
- struct atrdef myatr[2] = {{sizeof bintime, ATR$C_REVDATE, bintime}, {0,0,0}};
- struct fibdef myfib;
- struct dsc$descriptor fibdsc = {sizeof(myfib), DSC$K_DTYPE_Z, DSC$K_CLASS_S,(char *) &myfib},
- devdsc = {0,DSC$K_DTYPE_T, DSC$K_CLASS_S,0},
- fnmdsc = {0,DSC$K_DTYPE_T, DSC$K_CLASS_S,0};
-
- if (file == NULL || *file == '\0') {
- set_errno(ENOENT);
- set_vaxc_errno(LIB$_INVARG);
- return -1;
- }
- if (tovmsspec(file,vmsspec) == NULL) return -1;
-
- if (utimes != NULL) {
- /* Convert Unix time (seconds since 01-JAN-1970 00:00:00.00)
- * to VMS quadword time (100 nsec intervals since 01-JAN-1858 00:00:00.00).
- * Since time_t is unsigned long int, and lib$emul takes a signed long int
- * as input, we force the sign bit to be clear by shifting unixtime right
- * one bit, then multiplying by an extra factor of 2 in lib$emul().
- */
- lowbit = (utimes->modtime & 1) ? secscale : 0;
- unixtime = (long int) utimes->modtime;
- unixtime >> 1; secscale << 1;
- retsts = lib$emul(&secscale, &unixtime, &lowbit, bintime);
- if (!(retsts & 1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(retsts);
- return -1;
- }
- retsts = lib$addx(bintime,utime_baseadjust,bintime,&len);
- if (!(retsts & 1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(retsts);
- return -1;
- }
- }
- else {
- /* Just get the current time in VMS format directly */
- retsts = sys$gettim(bintime);
- if (!(retsts & 1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(retsts);
- return -1;
- }
- }
-
- myfab.fab$l_fna = vmsspec;
- myfab.fab$b_fns = (unsigned char) strlen(vmsspec);
- myfab.fab$l_nam = &mynam;
- mynam.nam$l_esa = esa;
- mynam.nam$b_ess = (unsigned char) sizeof esa;
- mynam.nam$l_rsa = rsa;
- mynam.nam$b_rss = (unsigned char) sizeof rsa;
-
- /* Look for the file to be affected, letting RMS parse the file
- * specification for us as well. I have set errno using only
- * values documented in the utime() man page for VMS POSIX.
- */
- retsts = sys$parse(&myfab,0,0);
- if (!(retsts & 1)) {
- set_vaxc_errno(retsts);
- if (retsts == RMS$_PRV) set_errno(EACCES);
- else if (retsts == RMS$_DIR) set_errno(ENOTDIR);
- else set_errno(EVMSERR);
- return -1;
- }
- retsts = sys$search(&myfab,0,0);
- if (!(retsts & 1)) {
- set_vaxc_errno(retsts);
- if (retsts == RMS$_PRV) set_errno(EACCES);
- else if (retsts == RMS$_FNF) set_errno(ENOENT);
- else set_errno(EVMSERR);
- return -1;
- }
-
- devdsc.dsc$w_length = mynam.nam$b_dev;
- devdsc.dsc$a_pointer = (char *) mynam.nam$l_dev;
-
- retsts = sys$assign(&devdsc,&chan,0,0);
- if (!(retsts & 1)) {
- set_vaxc_errno(retsts);
- if (retsts == SS$_IVDEVNAM) set_errno(ENOTDIR);
- else if (retsts == SS$_NOPRIV) set_errno(EACCES);
- else if (retsts == SS$_NOSUCHDEV) set_errno(ENOTDIR);
- else set_errno(EVMSERR);
- return -1;
- }
-
- fnmdsc.dsc$a_pointer = mynam.nam$l_name;
- fnmdsc.dsc$w_length = mynam.nam$b_name + mynam.nam$b_type + mynam.nam$b_ver;
-
- memset((void *) &myfib, 0, sizeof myfib);
- #ifdef __DECC
- for (i=0;i<3;i++) myfib.fib$w_fid[i] = mynam.nam$w_fid[i];
- for (i=0;i<3;i++) myfib.fib$w_did[i] = mynam.nam$w_did[i];
- /* This prevents the revision time of the file being reset to the current
- * time as a reqult of our IO$_MODIFY $QIO. */
- myfib.fib$l_acctl = FIB$M_NORECORD;
- #else
- for (i=0;i<3;i++) myfib.fib$r_fid_overlay.fib$w_fid[i] = mynam.nam$w_fid[i];
- for (i=0;i<3;i++) myfib.fib$r_did_overlay.fib$w_did[i] = mynam.nam$w_did[i];
- myfib.fib$r_acctl_overlay.fib$l_acctl = FIB$M_NORECORD;
- #endif
- retsts = sys$qiow(0,chan,IO$_MODIFY,iosb,0,0,&fibdsc,&fnmdsc,0,0,myatr,0);
- if (retsts & 1) retsts = iosb[0];
- if (!(retsts & 1)) {
- set_vaxc_errno(retsts);
- if (retsts == SS$_NOPRIV) set_errno(EACCES);
- else set_errno(EVMSERR);
- return -1;
- }
-
- return 0;
- } /* end of my_utime() */
- /*}}}*/
-
- static void
- create_mbx(unsigned short int *chan, struct dsc$descriptor_s *namdsc)
- {
- static unsigned long int mbxbufsiz;
- long int syiitm = SYI$_MAXBUF, dviitm = DVI$_DEVNAM;
-
- if (!mbxbufsiz) {
- /*
- * Get the SYSGEN parameter MAXBUF, and the smaller of it and the
- * preprocessor consant BUFSIZ from stdio.h as the size of the
- * 'pipe' mailbox.
- */
- _ckvmssts(lib$getsyi(&syiitm, &mbxbufsiz, 0, 0, 0, 0));
- if (mbxbufsiz > BUFSIZ) mbxbufsiz = BUFSIZ;
- }
- _ckvmssts(sys$crembx(0,chan,mbxbufsiz,mbxbufsiz,0,0,0));
-
- _ckvmssts(lib$getdvi(&dviitm, chan, NULL, NULL, namdsc, &namdsc->dsc$w_length));
- namdsc->dsc$a_pointer[namdsc->dsc$w_length] = '\0';
-
- } /* end of create_mbx() */
-
- /*{{{ my_popen and my_pclose*/
- struct pipe_details
- {
- struct pipe_details *next;
- FILE *fp; /* stdio file pointer to pipe mailbox */
- int pid; /* PID of subprocess */
- int mode; /* == 'r' if pipe open for reading */
- int done; /* subprocess has completed */
- unsigned long int completion; /* termination status of subprocess */
- };
-
- struct exit_control_block
- {
- struct exit_control_block *flink;
- unsigned long int (*exit_routine)();
- unsigned long int arg_count;
- unsigned long int *status_address;
- unsigned long int exit_status;
- };
-
- static struct pipe_details *open_pipes = NULL;
- static $DESCRIPTOR(nl_desc, "NL:");
- static int waitpid_asleep = 0;
-
- static unsigned long int
- pipe_exit_routine()
- {
- unsigned long int retsts = SS$_NORMAL, abort = SS$_TIMEOUT, sts;
-
- while (open_pipes != NULL) {
- if (!open_pipes->done) { /* Tap them gently on the shoulder . . .*/
- _ckvmssts(sys$forcex(&open_pipes->pid,0,&abort));
- sleep(1);
- }
- if (!open_pipes->done) /* We tried to be nice . . . */
- _ckvmssts(sys$delprc(&open_pipes->pid,0));
- if (!((sts = my_pclose(open_pipes->fp))&1)) retsts = sts;
- }
- return retsts;
- }
-
- static struct exit_control_block pipe_exitblock =
- {(struct exit_control_block *) 0,
- pipe_exit_routine, 0, &pipe_exitblock.exit_status, 0};
-
-
- static void
- popen_completion_ast(struct pipe_details *thispipe)
- {
- thispipe->done = TRUE;
- if (waitpid_asleep) {
- waitpid_asleep = 0;
- sys$wake(0,0);
- }
- }
-
- /*{{{ FILE *my_popen(char *cmd, char *mode)*/
- FILE *
- my_popen(char *cmd, char *mode)
- {
- static int handler_set_up = FALSE;
- char mbxname[64];
- unsigned short int chan;
- unsigned long int flags=1; /* nowait - gnu c doesn't allow &1 */
- struct pipe_details *info;
- struct dsc$descriptor_s namdsc = {sizeof mbxname, DSC$K_DTYPE_T,
- DSC$K_CLASS_S, mbxname},
- cmddsc = {0, DSC$K_DTYPE_T,
- DSC$K_CLASS_S, 0};
-
-
- New(7001,info,1,struct pipe_details);
-
- /* create mailbox */
- create_mbx(&chan,&namdsc);
-
- /* open a FILE* onto it */
- info->fp=fopen(mbxname, mode);
-
- /* give up other channel onto it */
- _ckvmssts(sys$dassgn(chan));
-
- if (!info->fp)
- return Nullfp;
-
- cmddsc.dsc$w_length=strlen(cmd);
- cmddsc.dsc$a_pointer=cmd;
-
- info->mode = *mode;
- info->done = FALSE;
- info->completion=0;
-
- if (*mode == 'r') {
- _ckvmssts(lib$spawn(&cmddsc, &nl_desc, &namdsc, &flags,
- 0 /* name */, &info->pid, &info->completion,
- 0, popen_completion_ast,info,0,0,0));
- }
- else {
- _ckvmssts(lib$spawn(&cmddsc, &namdsc, 0 /* sys$output */, &flags,
- 0 /* name */, &info->pid, &info->completion,
- 0, popen_completion_ast,info,0,0,0));
- }
-
- if (!handler_set_up) {
- _ckvmssts(sys$dclexh(&pipe_exitblock));
- handler_set_up = TRUE;
- }
- info->next=open_pipes; /* prepend to list */
- open_pipes=info;
-
- return info->fp;
- }
- /*}}}*/
-
- /*{{{ I32 my_pclose(FILE *fp)*/
- I32 my_pclose(FILE *fp)
- {
- struct pipe_details *info, *last = NULL;
- unsigned long int retsts;
-
- for (info = open_pipes; info != NULL; last = info, info = info->next)
- if (info->fp == fp) break;
-
- if (info == NULL)
- /* get here => no such pipe open */
- croak("No such pipe open");
-
- if (info->done) retsts = info->completion;
- else waitpid(info->pid,(int *) &retsts,0);
-
- fclose(info->fp);
-
- /* remove from list of open pipes */
- if (last) last->next = info->next;
- else open_pipes = info->next;
- Safefree(info);
-
- return retsts;
-
- } /* end of my_pclose() */
-
- /* sort-of waitpid; use only with popen() */
- /*{{{unsigned long int waitpid(unsigned long int pid, int *statusp, int flags)*/
- unsigned long int
- waitpid(unsigned long int pid, int *statusp, int flags)
- {
- struct pipe_details *info;
-
- for (info = open_pipes; info != NULL; info = info->next)
- if (info->pid == pid) break;
-
- if (info != NULL) { /* we know about this child */
- while (!info->done) {
- waitpid_asleep = 1;
- sys$hiber();
- }
-
- *statusp = info->completion;
- return pid;
- }
- else { /* we haven't heard of this child */
- $DESCRIPTOR(intdsc,"0 00:00:01");
- unsigned long int ownercode = JPI$_OWNER, ownerpid, mypid;
- unsigned long int interval[2],sts;
-
- if (dowarn) {
- _ckvmssts(lib$getjpi(&ownercode,&pid,0,&ownerpid,0,0));
- _ckvmssts(lib$getjpi(&ownercode,0,0,&mypid,0,0));
- if (ownerpid != mypid)
- warn("pid %d not a child",pid);
- }
-
- _ckvmssts(sys$bintim(&intdsc,interval));
- while ((sts=lib$getjpi(&ownercode,&pid,0,&ownerpid,0,0)) & 1) {
- _ckvmssts(sys$schdwk(0,0,interval,0));
- _ckvmssts(sys$hiber());
- }
- _ckvmssts(sts);
-
- /* There's no easy way to find the termination status a child we're
- * not aware of beforehand. If we're really interested in the future,
- * we can go looking for a termination mailbox, or chase after the
- * accounting record for the process.
- */
- *statusp = 0;
- return pid;
- }
-
- } /* end of waitpid() */
- /*}}}*/
- /*}}}*/
- /*}}}*/
-
- /*{{{ char *my_gconvert(double val, int ndig, int trail, char *buf) */
- char *
- my_gconvert(double val, int ndig, int trail, char *buf)
- {
- static char __gcvtbuf[DBL_DIG+1];
- char *loc;
-
- loc = buf ? buf : __gcvtbuf;
- if (val) {
- if (!buf && ndig > DBL_DIG) ndig = DBL_DIG;
- return gcvt(val,ndig,loc);
- }
- else {
- loc[0] = '0'; loc[1] = '\0';
- return loc;
- }
-
- }
- /*}}}*/
-
- /*
- ** The following routines are provided to make life easier when
- ** converting among VMS-style and Unix-style directory specifications.
- ** All will take input specifications in either VMS or Unix syntax. On
- ** failure, all return NULL. If successful, the routines listed below
- ** return a pointer to a buffer containing the appropriately
- ** reformatted spec (and, therefore, subsequent calls to that routine
- ** will clobber the result), while the routines of the same names with
- ** a _ts suffix appended will return a pointer to a mallocd string
- ** containing the appropriately reformatted spec.
- ** In all cases, only explicit syntax is altered; no check is made that
- ** the resulting string is valid or that the directory in question
- ** actually exists.
- **
- ** fileify_dirspec() - convert a directory spec into the name of the
- ** directory file (i.e. what you can stat() to see if it's a dir).
- ** The style (VMS or Unix) of the result is the same as the style
- ** of the parameter passed in.
- ** pathify_dirspec() - convert a directory spec into a path (i.e.
- ** what you prepend to a filename to indicate what directory it's in).
- ** The style (VMS or Unix) of the result is the same as the style
- ** of the parameter passed in.
- ** tounixpath() - convert a directory spec into a Unix-style path.
- ** tovmspath() - convert a directory spec into a VMS-style path.
- ** tounixspec() - convert any file spec into a Unix-style file spec.
- ** tovmsspec() - convert any file spec into a VMS-style spec.
- */
-
- static char *do_tounixspec(char *, char *, int);
-
- /*{{{ char *fileify_dirspec[_ts](char *path, char *buf)*/
- static char *do_fileify_dirspec(char *dir,char *buf,int ts)
- {
- static char __fileify_retbuf[NAM$C_MAXRSS+1];
- unsigned long int dirlen, retlen, addmfd = 0;
- char *retspec, *cp1, *cp2, *lastdir;
- char trndir[NAM$C_MAXRSS+1], vmsdir[NAM$C_MAXRSS+1];
-
- if (dir == NULL) return NULL;
- strcpy(trndir,dir);
- while (!strpbrk(trndir,"/]:>") && my_trnlnm(trndir,trndir) != NULL) ;
- dir = trndir;
-
- dirlen = strlen(dir);
- if (!strpbrk(dir,"]:>")) { /* Unix-style path or plain dir name */
- if (dir[0] == '.') {
- if (dir[1] == '\0' || (dir[1] == '/' && dir[2] == '\0'))
- return do_fileify_dirspec("[]",buf,ts);
- else if (dir[1] == '.' &&
- (dir[2] == '\0' || (dir[2] == '/' && dir[3] == '\0')))
- return do_fileify_dirspec("[-]",buf,ts);
- }
- if (dir[dirlen-1] == '/') { /* path ends with '/'; just add .dir;1 */
- dirlen -= 1; /* to last element */
- lastdir = strrchr(dir,'/');
- }
- else if (strstr(trndir,"..") != NULL) {
- /* If we have a relative path, let do_tovmsspec figure it out,
- * rather than repeating the code here */
- if (do_tovmsspec(trndir,vmsdir,0) == NULL) return NULL;
- if (do_fileify_dirspec(vmsdir,trndir,0) == NULL) return NULL;
- return do_tounixspec(trndir,buf,ts);
- }
- else {
- if (!(lastdir = cp1 = strrchr(dir,'/'))) cp1 = dir;
- if ((cp2 = strchr(cp1,'.'))) { /* look for explicit type */
- if (toupper(*(cp2+1)) == 'D' && /* Yep. Is it .dir? */
- toupper(*(cp2+2)) == 'I' &&
- toupper(*(cp2+3)) == 'R') {
- if ((cp1 = strchr(cp2,';')) || (cp1 = strchr(cp2+1,'.'))) {
- if (*(cp1+1) != '1' || *(cp1+2) != '\0') { /* Version is not ;1 */
- set_errno(ENOTDIR); /* Bzzt. */
- set_vaxc_errno(RMS$_DIR);
- return NULL;
- }
- }
- dirlen = cp2 - dir;
- }
- else { /* There's a type, and it's not .dir. Bzzt. */
- set_errno(ENOTDIR);
- set_vaxc_errno(RMS$_DIR);
- return NULL;
- }
- }
- }
- /* If we lead off with a device or rooted logical, add the MFD
- if we're specifying a top-level directory. */
- if (lastdir && *dir == '/') {
- addmfd = 1;
- for (cp1 = lastdir - 1; cp1 > dir; cp1--) {
- if (*cp1 == '/') {
- addmfd = 0;
- break;
- }
- }
- }
- retlen = dirlen + addmfd ? 13 : 6;
- if (buf) retspec = buf;
- else if (ts) New(7009,retspec,retlen+6,char);
- else retspec = __fileify_retbuf;
- if (addmfd) {
- dirlen = lastdir - dir;
- memcpy(retspec,dir,dirlen);
- strcpy(&retspec[dirlen],"/000000");
- strcpy(&retspec[dirlen+7],lastdir);
- }
- else {
- memcpy(retspec,dir,dirlen);
- retspec[dirlen] = '\0';
- }
- /* We've picked up everything up to the directory file name.
- Now just add the type and version, and we're set. */
- strcat(retspec,".dir;1");
- return retspec;
- }
- else { /* VMS-style directory spec */
- char esa[NAM$C_MAXRSS+1], term;
- unsigned long int cmplen, hasdev, hasdir, hastype, hasver;
- struct FAB dirfab = cc$rms_fab;
- struct NAM savnam, dirnam = cc$rms_nam;
-
- dirfab.fab$b_fns = strlen(dir);
- dirfab.fab$l_fna = dir;
- dirfab.fab$l_nam = &dirnam;
- dirfab.fab$l_dna = ".DIR;1";
- dirfab.fab$b_dns = 6;
- dirnam.nam$b_ess = NAM$C_MAXRSS;
- dirnam.nam$l_esa = esa;
- if (!(sys$parse(&dirfab)&1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(dirfab.fab$l_sts);
- return NULL;
- }
- savnam = dirnam;
- if (sys$search(&dirfab)&1) { /* Does the file really exist? */
- /* Yes; fake the fnb bits so we'll check type below */
- dirnam.nam$l_fnb |= NAM$M_EXP_TYPE | NAM$M_EXP_VER;
- }
- else {
- if (dirfab.fab$l_sts != RMS$_FNF) {
- set_errno(EVMSERR);
- set_vaxc_errno(dirfab.fab$l_sts);
- return NULL;
- }
- dirnam = savnam; /* No; just work with potential name */
- }
- if (!(dirnam.nam$l_fnb & (NAM$M_EXP_DEV | NAM$M_EXP_DIR))) {
- cp1 = strchr(esa,']');
- if (!cp1) cp1 = strchr(esa,'>');
- if (cp1) { /* Should always be true */
- dirnam.nam$b_esl -= cp1 - esa - 1;
- memcpy(esa,cp1 + 1,dirnam.nam$b_esl);
- }
- }
- if (dirnam.nam$l_fnb & NAM$M_EXP_TYPE) { /* Was type specified? */
- /* Yep; check version while we're at it, if it's there. */
- cmplen = (dirnam.nam$l_fnb & NAM$M_EXP_VER) ? 6 : 4;
- if (strncmp(dirnam.nam$l_type,".DIR;1",cmplen)) {
- /* Something other than .DIR[;1]. Bzzt. */
- set_errno(ENOTDIR);
- set_vaxc_errno(RMS$_DIR);
- return NULL;
- }
- }
- esa[dirnam.nam$b_esl] = '\0';
- if (dirnam.nam$l_fnb & NAM$M_EXP_NAME) {
- /* They provided at least the name; we added the type, if necessary, */
- if (buf) retspec = buf; /* in sys$parse() */
- else if (ts) New(7011,retspec,dirnam.nam$b_esl,char);
- else retspec = __fileify_retbuf;
- strcpy(retspec,esa);
- return retspec;
- }
- if ((cp1 = strrchr(esa,']')) == NULL) cp1 = strrchr(esa,'>');
- if (cp1 == NULL) return NULL; /* should never happen */
- term = *cp1;
- *cp1 = '\0';
- retlen = strlen(esa);
- if ((cp1 = strrchr(esa,'.')) != NULL) {
- /* There's more than one directory in the path. Just roll back. */
- *cp1 = term;
- if (buf) retspec = buf;
- else if (ts) New(7011,retspec,retlen+6,char);
- else retspec = __fileify_retbuf;
- strcpy(retspec,esa);
- }
- else {
- if (dirnam.nam$l_fnb & NAM$M_ROOT_DIR) {
- /* Go back and expand rooted logical name */
- dirnam.nam$b_nop = NAM$M_SYNCHK | NAM$M_NOCONCEAL;
- if (!(sys$parse(&dirfab) & 1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(dirfab.fab$l_sts);
- return NULL;
- }
- retlen = dirnam.nam$b_esl - 9; /* esa - '][' - '].DIR;1' */
- if (buf) retspec = buf;
- else if (ts) New(7012,retspec,retlen+7,char);
- else retspec = __fileify_retbuf;
- cp1 = strstr(esa,"][");
- dirlen = cp1 - esa;
- memcpy(retspec,esa,dirlen);
- if (!strncmp(cp1+2,"000000]",7)) {
- retspec[dirlen-1] = '\0';
- for (cp1 = retspec+dirlen-1; *cp1 != '.'; cp1--) ;
- *cp1 = ']';
- }
- else {
- memcpy(retspec+dirlen,cp1+2,retlen-dirlen);
- retspec[retlen] = '\0';
- /* Convert last '.' to ']' */
- for (cp1 = retspec+retlen-1; *cp1 != '.'; cp1--) ;
- *cp1 = ']';
- }
- }
- else { /* This is a top-level dir. Add the MFD to the path. */
- if (buf) retspec = buf;
- else if (ts) New(7012,retspec,retlen+14,char);
- else retspec = __fileify_retbuf;
- cp1 = esa;
- cp2 = retspec;
- while (*cp1 != ':') *(cp2++) = *(cp1++);
- strcpy(cp2,":[000000]");
- cp1 += 2;
- strcpy(cp2+9,cp1);
- }
- }
- /* We've set up the string up through the filename. Add the
- type and version, and we're done. */
- strcat(retspec,".DIR;1");
- return retspec;
- }
- } /* end of do_fileify_dirspec() */
- /*}}}*/
- /* External entry points */
- char *fileify_dirspec(char *dir, char *buf)
- { return do_fileify_dirspec(dir,buf,0); }
- char *fileify_dirspec_ts(char *dir, char *buf)
- { return do_fileify_dirspec(dir,buf,1); }
-
- /*{{{ char *pathify_dirspec[_ts](char *path, char *buf)*/
- static char *do_pathify_dirspec(char *dir,char *buf, int ts)
- {
- static char __pathify_retbuf[NAM$C_MAXRSS+1];
- unsigned long int retlen;
- char *retpath, *cp1, *cp2, trndir[NAM$C_MAXRSS+1];
-
- if (dir == NULL) return NULL;
-
- strcpy(trndir,dir);
- while (!strpbrk(trndir,"/]:>") && my_trnlnm(trndir,trndir) != NULL) ;
- dir = trndir;
-
- if (!strpbrk(dir,"]:>")) { /* Unix-style path or plain dir name */
- if (*dir == '.' && (*(dir+1) == '\0' ||
- (*(dir+1) == '.' && *(dir+2) == '\0')))
- retlen = 2 + (*(dir+1) != '\0');
- else {
- if (!(cp1 = strrchr(dir,'/'))) cp1 = dir;
- if ((cp2 = strchr(cp1,'.')) && *(cp2+1) != '.') {
- if (toupper(*(cp2+1)) == 'D' && /* They specified .dir. */
- toupper(*(cp2+2)) == 'I' && /* Trim it off. */
- toupper(*(cp2+3)) == 'R') {
- retlen = cp2 - dir + 1;
- }
- else { /* Some other file type. Bzzt. */
- set_errno(ENOTDIR);
- set_vaxc_errno(RMS$_DIR);
- return NULL;
- }
- }
- else { /* No file type present. Treat the filename as a directory. */
- retlen = strlen(dir) + 1;
- }
- }
- if (buf) retpath = buf;
- else if (ts) New(7013,retpath,retlen,char);
- else retpath = __pathify_retbuf;
- strncpy(retpath,dir,retlen-1);
- if (retpath[retlen-2] != '/') { /* If the path doesn't already end */
- retpath[retlen-1] = '/'; /* with '/', add it. */
- retpath[retlen] = '\0';
- }
- else retpath[retlen-1] = '\0';
- }
- else { /* VMS-style directory spec */
- char esa[NAM$C_MAXRSS+1];
- unsigned long int cmplen;
- struct FAB dirfab = cc$rms_fab;
- struct NAM savnam, dirnam = cc$rms_nam;
-
- dirfab.fab$b_fns = strlen(dir);
- dirfab.fab$l_fna = dir;
- if (dir[dirfab.fab$b_fns-1] == ']' ||
- dir[dirfab.fab$b_fns-1] == '>' ||
- dir[dirfab.fab$b_fns-1] == ':') { /* It's already a VMS 'path' */
- if (buf) retpath = buf;
- else if (ts) New(7014,retpath,strlen(dir),char);
- else retpath = __pathify_retbuf;
- strcpy(retpath,dir);
- return retpath;
- }
- dirfab.fab$l_dna = ".DIR;1";
- dirfab.fab$b_dns = 6;
- dirfab.fab$l_nam = &dirnam;
- dirnam.nam$b_ess = (unsigned char) sizeof esa;
- dirnam.nam$l_esa = esa;
- if (!(sys$parse(&dirfab)&1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(dirfab.fab$l_sts);
- return NULL;
- }
- savnam = dirnam;
- if (!(sys$search(&dirfab)&1)) { /* Does the file really exist? */
- if (dirfab.fab$l_sts != RMS$_FNF) {
- set_errno(EVMSERR);
- set_vaxc_errno(dirfab.fab$l_sts);
- return NULL;
- }
- dirnam = savnam; /* No; just work with potential name */
- }
-
- if (dirnam.nam$l_fnb & NAM$M_EXP_TYPE) { /* Was type specified? */
- /* Yep; check version while we're at it, if it's there. */
- cmplen = (dirnam.nam$l_fnb & NAM$M_EXP_VER) ? 6 : 4;
- if (strncmp(dirnam.nam$l_type,".DIR;1",cmplen)) {
- /* Something other than .DIR[;1]. Bzzt. */
- set_errno(ENOTDIR);
- set_vaxc_errno(RMS$_DIR);
- return NULL;
- }
- }
- /* OK, the type was fine. Now pull any file name into the
- directory path. */
- if ((cp1 = strrchr(esa,']'))) *dirnam.nam$l_type = ']';
- else {
- cp1 = strrchr(esa,'>');
- *dirnam.nam$l_type = '>';
- }
- *cp1 = '.';
- *(dirnam.nam$l_type + 1) = '\0';
- retlen = dirnam.nam$l_type - esa + 2;
- if (buf) retpath = buf;
- else if (ts) New(7014,retpath,retlen,char);
- else retpath = __pathify_retbuf;
- strcpy(retpath,esa);
- }
-
- return retpath;
- } /* end of do_pathify_dirspec() */
- /*}}}*/
- /* External entry points */
- char *pathify_dirspec(char *dir, char *buf)
- { return do_pathify_dirspec(dir,buf,0); }
- char *pathify_dirspec_ts(char *dir, char *buf)
- { return do_pathify_dirspec(dir,buf,1); }
-
- /*{{{ char *tounixspec[_ts](char *path, char *buf)*/
- static char *do_tounixspec(char *spec, char *buf, int ts)
- {
- static char __tounixspec_retbuf[NAM$C_MAXRSS+1];
- char *dirend, *rslt, *cp1, *cp2, *cp3, tmp[NAM$C_MAXRSS+1];
- int devlen, dirlen;
-
- if (spec == NULL) return NULL;
- if (buf) rslt = buf;
- else if (ts) New(7015,rslt,NAM$C_MAXRSS+1,char);
- else rslt = __tounixspec_retbuf;
- if (strchr(spec,'/') != NULL) {
- strcpy(rslt,spec);
- return rslt;
- }
-
- cp1 = rslt;
- cp2 = spec;
- dirend = strrchr(spec,']');
- if (dirend == NULL) dirend = strrchr(spec,'>');
- if (dirend == NULL) dirend = strchr(spec,':');
- if (dirend == NULL) {
- strcpy(rslt,spec);
- return rslt;
- }
- if (*cp2 != '[') {
- *(cp1++) = '/';
- }
- else { /* the VMS spec begins with directories */
- cp2++;
- if (*cp2 == '-') {
- while (*cp2 == '-') {
- *(cp1++) = '.'; *(cp1++) = '.'; *(cp1++) = '/';
- cp2++;
- }
- if (*cp2 != '.' && *cp2 != ']' && *cp2 != '>') { /* we don't allow */
- if (ts) Safefree(rslt); /* filespecs like */
- set_errno(EINVAL); set_vaxc_errno(RMS$_SYN); /* [--foo.bar] */
- return NULL;
- }
- cp2++;
- }
- else if ( *(cp2) != '.') { /* add the implied device into the Unix spec */
- *(cp1++) = '/';
- if (getcwd(tmp,sizeof tmp,1) == NULL) {
- if (ts) Safefree(rslt);
- return NULL;
- }
- do {
- cp3 = tmp;
- while (*cp3 != ':' && *cp3) cp3++;
- *(cp3++) = '\0';
- if (strchr(cp3,']') != NULL) break;
- } while (((cp3 = getenv(tmp)) != NULL) && strcpy(tmp,cp3));
- cp3 = tmp;
- while (*cp3) *(cp1++) = *(cp3++);
- *(cp1++) = '/';
- if ((devlen = strlen(tmp)) + (dirlen = strlen(cp2)) + 1 > NAM$C_MAXRSS) {
- if (ts) Safefree(rslt);
- set_errno(ERANGE);
- set_errno(RMS$_SYN);
- return NULL;
- }
- }
- else cp2++;
- }
- for (; cp2 <= dirend; cp2++) {
- if (*cp2 == ':') {
- *(cp1++) = '/';
- if (*(cp2+1) == '[') cp2++;
- }
- else if (*cp2 == ']' || *cp2 == '>') *(cp1++) = '/';
- else if (*cp2 == '.') {
- *(cp1++) = '/';
- while (*(cp2+1) == ']' || *(cp2+1) == '>' ||
- *(cp2+1) == '[' || *(cp2+1) == '<') cp2++;
- }
- else if (*cp2 == '-') {
- if (*(cp2-1) == '[' || *(cp2-1) == '<' || *(cp2-1) == '.') {
- while (*cp2 == '-') {
- cp2++;
- *(cp1++) = '.'; *(cp1++) = '.'; *(cp1++) = '/';
- }
- if (*cp2 != '.' && *cp2 != ']' && *cp2 != '>') { /* we don't allow */
- if (ts) Safefree(rslt); /* filespecs like */
- set_errno(EINVAL); set_vaxc_errno(RMS$_SYN); /* [--foo.bar] */
- return NULL;
- }
- cp2++;
- }
- else *(cp1++) = *cp2;
- }
- else *(cp1++) = *cp2;
- }
- while (*cp2) *(cp1++) = *(cp2++);
- *cp1 = '\0';
-
- return rslt;
-
- } /* end of do_tounixspec() */
- /*}}}*/
- /* External entry points */
- char *tounixspec(char *spec, char *buf) { return do_tounixspec(spec,buf,0); }
- char *tounixspec_ts(char *spec, char *buf) { return do_tounixspec(spec,buf,1); }
-
- /*{{{ char *tovmsspec[_ts](char *path, char *buf)*/
- static char *do_tovmsspec(char *path, char *buf, int ts) {
- static char __tovmsspec_retbuf[NAM$C_MAXRSS+1];
- register char *rslt, *dirend, *cp1, *cp2;
- register unsigned long int infront = 0;
-
- if (path == NULL) return NULL;
- if (buf) rslt = buf;
- else if (ts) New(7016,rslt,strlen(path)+3,char);
- else rslt = __tovmsspec_retbuf;
- if (strpbrk(path,"]:>") ||
- (dirend = strrchr(path,'/')) == NULL) {
- if (path[0] == '.') {
- if (path[1] == '\0') strcpy(rslt,"[]");
- else if (path[1] == '.' && path[2] == '\0') strcpy(rslt,"[-]");
- else strcpy(rslt,path); /* probably garbage */
- }
- else strcpy(rslt,path);
- return rslt;
- }
- if (*(dirend+1) == '.') { /* do we have trailing "/." or "/.."? */
- if (!*(dirend+2)) dirend +=2;
- if (*(dirend+2) == '.' && !*(dirend+3)) dirend += 3;
- }
- cp1 = rslt;
- cp2 = path;
- if (*cp2 == '/') {
- while (*(++cp2) != '/' && *cp2) *(cp1++) = *cp2;
- *(cp1++) = ':';
- *(cp1++) = '[';
- if (cp2 == dirend) while (infront++ < 6) *(cp1++) = '0';
- else cp2++;
- }
- else {
- *(cp1++) = '[';
- if (*cp2 == '.') {
- if (*(cp2+1) == '/' || *(cp2+1) == '\0') {
- cp2 += 2; /* skip over "./" - it's redundant */
- *(cp1++) = '.'; /* but it does indicate a relative dirspec */
- }
- else if (*(cp2+1) == '.' && (*(cp2+2) == '/' || *(cp2+2) == '\0')) {
- *(cp1++) = '-'; /* "../" --> "-" */
- cp2 += 3;
- }
- if (cp2 > dirend) cp2 = dirend;
- }
- else *(cp1++) = '.';
- }
- for (; cp2 < dirend; cp2++) {
- if (*cp2 == '/') {
- if (*(cp1-1) != '.') *(cp1++) = '.';
- infront = 0;
- }
- else if (!infront && *cp2 == '.') {
- if (*(cp2+1) == '/') cp2++; /* skip over "./" - it's redundant */
- else if (*(cp2+1) == '.' && (*(cp2+2) == '/' || *(cp2+2) == '\0')) {
- if (*(cp1-1) == '-' || *(cp1-1) == '[') *(cp1++) = '-'; /* handle "../" */
- else if (*(cp1-2) == '[') *(cp1-1) = '-';
- else { /* back up over previous directory name */
- cp1--;
- while (*(cp1-1) != '.' && *(cp1-1) != '[') cp1--;
- }
- cp2 += 2;
- if (cp2 == dirend) {
- if (*(cp1-1) == '.') cp1--;
- break;
- }
- }
- else *(cp1++) = '_'; /* fix up syntax - '.' in name not allowed */
- }
- else {
- if (*(cp1-1) == '-') *(cp1++) = '.';
- if (*cp2 == '/') *(cp1++) = '.';
- else if (*cp2 == '.') *(cp1++) = '_';
- else *(cp1++) = *cp2;
- infront = 1;
- }
- }
- if (*(cp1-1) == '.') cp1--; /* Unix spec ending in '/' ==> trailing '.' */
- *(cp1++) = ']';
- if (*cp2) cp2++; /* check in case we ended with trailing '..' */
- while (*cp2) *(cp1++) = *(cp2++);
- *cp1 = '\0';
-
- return rslt;
-
- } /* end of do_tovmsspec() */
- /*}}}*/
- /* External entry points */
- char *tovmsspec(char *path, char *buf) { return do_tovmsspec(path,buf,0); }
- char *tovmsspec_ts(char *path, char *buf) { return do_tovmsspec(path,buf,1); }
-
- /*{{{ char *tovmspath[_ts](char *path, char *buf)*/
- static char *do_tovmspath(char *path, char *buf, int ts) {
- static char __tovmspath_retbuf[NAM$C_MAXRSS+1];
- int vmslen;
- char pathified[NAM$C_MAXRSS+1], vmsified[NAM$C_MAXRSS+1], *cp;
-
- if (path == NULL) return NULL;
- if (do_pathify_dirspec(path,pathified,0) == NULL) return NULL;
- if (do_tovmsspec(pathified,buf ? buf : vmsified,0) == NULL) return NULL;
- if (buf) return buf;
- else if (ts) {
- vmslen = strlen(vmsified);
- New(7017,cp,vmslen,char);
- memcpy(cp,vmsified,vmslen);
- cp[vmslen] = '\0';
- return cp;
- }
- else {
- strcpy(__tovmspath_retbuf,vmsified);
- return __tovmspath_retbuf;
- }
-
- } /* end of do_tovmspath() */
- /*}}}*/
- /* External entry points */
- char *tovmspath(char *path, char *buf) { return do_tovmspath(path,buf,0); }
- char *tovmspath_ts(char *path, char *buf) { return do_tovmspath(path,buf,1); }
-
-
- /*{{{ char *tounixpath[_ts](char *path, char *buf)*/
- static char *do_tounixpath(char *path, char *buf, int ts) {
- static char __tounixpath_retbuf[NAM$C_MAXRSS+1];
- int unixlen;
- char pathified[NAM$C_MAXRSS+1], unixified[NAM$C_MAXRSS+1], *cp;
-
- if (path == NULL) return NULL;
- if (do_pathify_dirspec(path,pathified,0) == NULL) return NULL;
- if (do_tounixspec(pathified,buf ? buf : unixified,0) == NULL) return NULL;
- if (buf) return buf;
- else if (ts) {
- unixlen = strlen(unixified);
- New(7017,cp,unixlen,char);
- memcpy(cp,unixified,unixlen);
- cp[unixlen] = '\0';
- return cp;
- }
- else {
- strcpy(__tounixpath_retbuf,unixified);
- return __tounixpath_retbuf;
- }
-
- } /* end of do_tounixpath() */
- /*}}}*/
- /* External entry points */
- char *tounixpath(char *path, char *buf) { return do_tounixpath(path,buf,0); }
- char *tounixpath_ts(char *path, char *buf) { return do_tounixpath(path,buf,1); }
-
- /*
- * @(#)argproc.c 2.2 94/08/16 Mark Pizzolato (mark@infocomm.com)
- *
- *****************************************************************************
- * *
- * Copyright (C) 1989-1994 by *
- * Mark Pizzolato - INFO COMM, Danville, California (510) 837-5600 *
- * *
- * Permission is hereby granted for the reproduction of this software, *
- * on condition that this copyright notice is included in the reproduction, *
- * and that such reproduction is not for purposes of profit or material *
- * gain. *
- * *
- * 27-Aug-1994 Modified for inclusion in perl5 *
- * by Charles Bailey bailey@genetics.upenn.edu *
- *****************************************************************************
- */
-
- /*
- * getredirection() is intended to aid in porting C programs
- * to VMS (Vax-11 C). The native VMS environment does not support
- * '>' and '<' I/O redirection, or command line wild card expansion,
- * or a command line pipe mechanism using the '|' AND background
- * command execution '&'. All of these capabilities are provided to any
- * C program which calls this procedure as the first thing in the
- * main program.
- * The piping mechanism will probably work with almost any 'filter' type
- * of program. With suitable modification, it may useful for other
- * portability problems as well.
- *
- * Author: Mark Pizzolato mark@infocomm.com
- */
- struct list_item
- {
- struct list_item *next;
- char *value;
- };
-
- static void add_item(struct list_item **head,
- struct list_item **tail,
- char *value,
- int *count);
-
- static void expand_wild_cards(char *item,
- struct list_item **head,
- struct list_item **tail,
- int *count);
-
- static int background_process(int argc, char **argv);
-
- static void pipe_and_fork(char **cmargv);
-
- /*{{{ void getredirection(int *ac, char ***av)*/
- void
- getredirection(int *ac, char ***av)
- /*
- * Process vms redirection arg's. Exit if any error is seen.
- * If getredirection() processes an argument, it is erased
- * from the vector. getredirection() returns a new argc and argv value.
- * In the event that a background command is requested (by a trailing "&"),
- * this routine creates a background subprocess, and simply exits the program.
- *
- * Warning: do not try to simplify the code for vms. The code
- * presupposes that getredirection() is called before any data is
- * read from stdin or written to stdout.
- *
- * Normal usage is as follows:
- *
- * main(argc, argv)
- * int argc;
- * char *argv[];
- * {
- * getredirection(&argc, &argv);
- * }
- */
- {
- int argc = *ac; /* Argument Count */
- char **argv = *av; /* Argument Vector */
- char *ap; /* Argument pointer */
- int j; /* argv[] index */
- int item_count = 0; /* Count of Items in List */
- struct list_item *list_head = 0; /* First Item in List */
- struct list_item *list_tail; /* Last Item in List */
- char *in = NULL; /* Input File Name */
- char *out = NULL; /* Output File Name */
- char *outmode = "w"; /* Mode to Open Output File */
- char *err = NULL; /* Error File Name */
- char *errmode = "w"; /* Mode to Open Error File */
- int cmargc = 0; /* Piped Command Arg Count */
- char **cmargv = NULL;/* Piped Command Arg Vector */
-
- /*
- * First handle the case where the last thing on the line ends with
- * a '&'. This indicates the desire for the command to be run in a
- * subprocess, so we satisfy that desire.
- */
- ap = argv[argc-1];
- if (0 == strcmp("&", ap))
- exit(background_process(--argc, argv));
- if ('&' == ap[strlen(ap)-1])
- {
- ap[strlen(ap)-1] = '\0';
- exit(background_process(argc, argv));
- }
- /*
- * Now we handle the general redirection cases that involve '>', '>>',
- * '<', and pipes '|'.
- */
- for (j = 0; j < argc; ++j)
- {
- if (0 == strcmp("<", argv[j]))
- {
- if (j+1 >= argc)
- {
- fprintf(stderr,"No input file after < on command line");
- exit(LIB$_WRONUMARG);
- }
- in = argv[++j];
- continue;
- }
- if ('<' == *(ap = argv[j]))
- {
- in = 1 + ap;
- continue;
- }
- if (0 == strcmp(">", ap))
- {
- if (j+1 >= argc)
- {
- fprintf(stderr,"No output file after > on command line");
- exit(LIB$_WRONUMARG);
- }
- out = argv[++j];
- continue;
- }
- if ('>' == *ap)
- {
- if ('>' == ap[1])
- {
- outmode = "a";
- if ('\0' == ap[2])
- out = argv[++j];
- else
- out = 2 + ap;
- }
- else
- out = 1 + ap;
- if (j >= argc)
- {
- fprintf(stderr,"No output file after > or >> on command line");
- exit(LIB$_WRONUMARG);
- }
- continue;
- }
- if (('2' == *ap) && ('>' == ap[1]))
- {
- if ('>' == ap[2])
- {
- errmode = "a";
- if ('\0' == ap[3])
- err = argv[++j];
- else
- err = 3 + ap;
- }
- else
- if ('\0' == ap[2])
- err = argv[++j];
- else
- err = 2 + ap;
- if (j >= argc)
- {
- fprintf(stderr,"No output file after 2> or 2>> on command line");
- exit(LIB$_WRONUMARG);
- }
- continue;
- }
- if (0 == strcmp("|", argv[j]))
- {
- if (j+1 >= argc)
- {
- fprintf(stderr,"No command into which to pipe on command line");
- exit(LIB$_WRONUMARG);
- }
- cmargc = argc-(j+1);
- cmargv = &argv[j+1];
- argc = j;
- continue;
- }
- if ('|' == *(ap = argv[j]))
- {
- ++argv[j];
- cmargc = argc-j;
- cmargv = &argv[j];
- argc = j;
- continue;
- }
- expand_wild_cards(ap, &list_head, &list_tail, &item_count);
- }
- /*
- * Allocate and fill in the new argument vector, Some Unix's terminate
- * the list with an extra null pointer.
- */
- New(7002, argv, item_count+1, char *);
- *av = argv;
- for (j = 0; j < item_count; ++j, list_head = list_head->next)
- argv[j] = list_head->value;
- *ac = item_count;
- if (cmargv != NULL)
- {
- if (out != NULL)
- {
- fprintf(stderr,"'|' and '>' may not both be specified on command line");
- exit(LIB$_INVARGORD);
- }
- pipe_and_fork(cmargv);
- }
-
- /* Check for input from a pipe (mailbox) */
-
- if (1 == isapipe(0))
- {
- char mbxname[L_tmpnam];
- long int bufsize;
- long int dvi_item = DVI$_DEVBUFSIZ;
- $DESCRIPTOR(mbxnam, "");
- $DESCRIPTOR(mbxdevnam, "");
-
- /* Input from a pipe, reopen it in binary mode to disable */
- /* carriage control processing. */
-
- if (in != NULL)
- {
- fprintf(stderr,"'|' and '<' may not both be specified on command line");
- exit(LIB$_INVARGORD);
- }
- fgetname(stdin, mbxname,1);
- mbxnam.dsc$a_pointer = mbxname;
- mbxnam.dsc$w_length = strlen(mbxnam.dsc$a_pointer);
- lib$getdvi(&dvi_item, 0, &mbxnam, &bufsize, 0, 0);
- mbxdevnam.dsc$a_pointer = mbxname;
- mbxdevnam.dsc$w_length = sizeof(mbxname);
- dvi_item = DVI$_DEVNAM;
- lib$getdvi(&dvi_item, 0, &mbxnam, 0, &mbxdevnam, &mbxdevnam.dsc$w_length);
- mbxdevnam.dsc$a_pointer[mbxdevnam.dsc$w_length] = '\0';
- set_errno(0);
- set_vaxc_errno(1);
- freopen(mbxname, "rb", stdin);
- if (errno != 0)
- {
- fprintf(stderr,"Can't reopen input pipe (name: %s) in binary mode",mbxname);
- exit(vaxc$errno);
- }
- }
- if ((in != NULL) && (NULL == freopen(in, "r", stdin, "mbc=32", "mbf=2")))
- {
- fprintf(stderr,"Can't open input file %s as stdin",in);
- exit(vaxc$errno);
- }
- if ((out != NULL) && (NULL == freopen(out, outmode, stdout, "mbc=32", "mbf=2")))
- {
- fprintf(stderr,"Can't open output file %s as stdout",out);
- exit(vaxc$errno);
- }
- if (err != NULL) {
- FILE *tmperr;
- if (NULL == (tmperr = fopen(err, errmode, "mbc=32", "mbf=2")))
- {
- fprintf(stderr,"Can't open error file %s as stderr",err);
- exit(vaxc$errno);
- }
- fclose(tmperr);
- if (NULL == freopen(err, "a", stderr, "mbc=32", "mbf=2"))
- {
- exit(vaxc$errno);
- }
- }
- #ifdef ARGPROC_DEBUG
- fprintf(stderr, "Arglist:\n");
- for (j = 0; j < *ac; ++j)
- fprintf(stderr, "argv[%d] = '%s'\n", j, argv[j]);
- #endif
- } /* end of getredirection() */
- /*}}}*/
-
- static void add_item(struct list_item **head,
- struct list_item **tail,
- char *value,
- int *count)
- {
- if (*head == 0)
- {
- New(7003,*head,1,struct list_item);
- *tail = *head;
- }
- else {
- New(7004,(*tail)->next,1,struct list_item);
- *tail = (*tail)->next;
- }
- (*tail)->value = value;
- ++(*count);
- }
-
- static void expand_wild_cards(char *item,
- struct list_item **head,
- struct list_item **tail,
- int *count)
- {
- int expcount = 0;
- unsigned long int context = 0;
- int isunix = 0;
- int status_value;
- char *had_version;
- char *had_device;
- int had_directory;
- char *devdir;
- char vmsspec[NAM$C_MAXRSS+1];
- $DESCRIPTOR(filespec, "");
- $DESCRIPTOR(defaultspec, "SYS$DISK:[]");
- $DESCRIPTOR(resultspec, "");
- unsigned long int zero = 0;
-
- if (strcspn(item, "*%") == strlen(item))
- {
- add_item(head, tail, item, count);
- return;
- }
- resultspec.dsc$b_dtype = DSC$K_DTYPE_T;
- resultspec.dsc$b_class = DSC$K_CLASS_D;
- resultspec.dsc$a_pointer = NULL;
- if ((isunix = (int) strchr(item,'/')) != (int) NULL)
- filespec.dsc$a_pointer = do_tovmsspec(item,vmsspec,0);
- if (!isunix || !filespec.dsc$a_pointer)
- filespec.dsc$a_pointer = item;
- filespec.dsc$w_length = strlen(filespec.dsc$a_pointer);
- /*
- * Only return version specs, if the caller specified a version
- */
- had_version = strchr(item, ';');
- /*
- * Only return device and directory specs, if the caller specifed either.
- */
- had_device = strchr(item, ':');
- had_directory = (isunix || NULL != strchr(item, '[')) || (NULL != strchr(item, '<'));
-
- while (1 == (1&lib$find_file(&filespec, &resultspec, &context,
- &defaultspec, 0, &status_value, &zero)))
- {
- char *string;
- char *c;
-
- New(7005,string,resultspec.dsc$w_length+1,char);
- strncpy(string, resultspec.dsc$a_pointer, resultspec.dsc$w_length);
- string[resultspec.dsc$w_length] = '\0';
- if (NULL == had_version)
- *((char *)strrchr(string, ';')) = '\0';
- if ((!had_directory) && (had_device == NULL))
- {
- if (NULL == (devdir = strrchr(string, ']')))
- devdir = strrchr(string, '>');
- strcpy(string, devdir + 1);
- }
- /*
- * Be consistent with what the C RTL has already done to the rest of
- * the argv items and lowercase all of these names.
- */
- for (c = string; *c; ++c)
- if (isupper(*c))
- *c = tolower(*c);
- if (isunix) trim_unixpath(item,string);
- add_item(head, tail, string, count);
- ++expcount;
- }
- if (expcount == 0)
- add_item(head, tail, item, count);
- lib$sfree1_dd(&resultspec);
- lib$find_file_end(&context);
- }
-
- static int child_st[2];/* Event Flag set when child process completes */
-
- static unsigned short child_chan;/* I/O Channel for Pipe Mailbox */
-
- static unsigned long int exit_handler(int *status)
- {
- short iosb[4];
-
- if (0 == child_st[0])
- {
- #ifdef ARGPROC_DEBUG
- fprintf(stderr, "Waiting for Child Process to Finish . . .\n");
- #endif
- fflush(stdout); /* Have to flush pipe for binary data to */
- /* terminate properly -- <tp@mccall.com> */
- sys$qiow(0, child_chan, IO$_WRITEOF, iosb, 0, 0, 0, 0, 0, 0, 0, 0);
- sys$dassgn(child_chan);
- fclose(stdout);
- sys$synch(0, child_st);
- }
- return(1);
- }
-
- static void sig_child(int chan)
- {
- #ifdef ARGPROC_DEBUG
- fprintf(stderr, "Child Completion AST\n");
- #endif
- if (child_st[0] == 0)
- child_st[0] = 1;
- }
-
- static struct exit_control_block exit_block =
- {
- 0,
- exit_handler,
- 1,
- &exit_block.exit_status,
- 0
- };
-
- static void pipe_and_fork(char **cmargv)
- {
- char subcmd[2048];
- $DESCRIPTOR(cmddsc, "");
- static char mbxname[64];
- $DESCRIPTOR(mbxdsc, mbxname);
- int pid, j;
- unsigned long int zero = 0, one = 1;
-
- strcpy(subcmd, cmargv[0]);
- for (j = 1; NULL != cmargv[j]; ++j)
- {
- strcat(subcmd, " \"");
- strcat(subcmd, cmargv[j]);
- strcat(subcmd, "\"");
- }
- cmddsc.dsc$a_pointer = subcmd;
- cmddsc.dsc$w_length = strlen(cmddsc.dsc$a_pointer);
-
- create_mbx(&child_chan,&mbxdsc);
- #ifdef ARGPROC_DEBUG
- fprintf(stderr, "Pipe Mailbox Name = '%s'\n", mbxdsc.dsc$a_pointer);
- fprintf(stderr, "Sub Process Command = '%s'\n", cmddsc.dsc$a_pointer);
- #endif
- _ckvmssts(lib$spawn(&cmddsc, &mbxdsc, 0, &one,
- 0, &pid, child_st, &zero, sig_child,
- &child_chan));
- #ifdef ARGPROC_DEBUG
- fprintf(stderr, "Subprocess's Pid = %08X\n", pid);
- #endif
- sys$dclexh(&exit_block);
- if (NULL == freopen(mbxname, "wb", stdout))
- {
- fprintf(stderr,"Can't open output pipe (name %s)",mbxname);
- }
- }
-
- static int background_process(int argc, char **argv)
- {
- char command[2048] = "$";
- $DESCRIPTOR(value, "");
- static $DESCRIPTOR(cmd, "BACKGROUND$COMMAND");
- static $DESCRIPTOR(null, "NLA0:");
- static $DESCRIPTOR(pidsymbol, "SHELL_BACKGROUND_PID");
- char pidstring[80];
- $DESCRIPTOR(pidstr, "");
- int pid;
- unsigned long int flags = 17, one = 1, retsts;
-
- strcat(command, argv[0]);
- while (--argc)
- {
- strcat(command, " \"");
- strcat(command, *(++argv));
- strcat(command, "\"");
- }
- value.dsc$a_pointer = command;
- value.dsc$w_length = strlen(value.dsc$a_pointer);
- _ckvmssts(lib$set_symbol(&cmd, &value));
- retsts = lib$spawn(&cmd, &null, 0, &flags, 0, &pid);
- if (retsts == 0x38250) { /* DCL-W-NOTIFY - We must be BATCH, so retry */
- _ckvmssts(lib$spawn(&cmd, &null, 0, &one, 0, &pid));
- }
- else {
- _ckvmssts(retsts);
- }
- #ifdef ARGPROC_DEBUG
- fprintf(stderr, "%s\n", command);
- #endif
- sprintf(pidstring, "%08X", pid);
- fprintf(stderr, "%s\n", pidstring);
- pidstr.dsc$a_pointer = pidstring;
- pidstr.dsc$w_length = strlen(pidstr.dsc$a_pointer);
- lib$set_symbol(&pidsymbol, &pidstr);
- return(SS$_NORMAL);
- }
- /*}}}*/
- /***** End of code taken from Mark Pizzolato's argproc.c package *****/
-
- /* trim_unixpath()
- * Trim Unix-style prefix off filespec, so it looks like what a shell
- * glob expansion would return (i.e. from specified prefix on, not
- * full path). Note that returned filespec is Unix-style, regardless
- * of whether input filespec was VMS-style or Unix-style.
- *
- * Returns !=0 on success, 0 on failure.
- */
- /*{{{int trim_unixpath(char *template, char *fspec)*/
- int
- trim_unixpath(char *template, char *fspec)
- {
- char unixified[NAM$C_MAXRSS+1], *base, *cp1, *cp2;
- register int tmplen;
-
- if (strpbrk(fspec,"]>:") != NULL) {
- if (do_tounixspec(fspec,unixified,0) == NULL) return 0;
- else base = unixified;
- }
- else base = fspec;
- for (cp2 = base; *cp2; cp2++) ; /* Find end of filespec */
-
- /* Find prefix to template consisting of path elements without wildcards */
- if ((cp1 = strpbrk(template,"*%?")) == NULL)
- for (cp1 = template; *cp1; cp1++) ;
- else while (cp1 >= template && *cp1 != '/') cp1--;
- if (cp1 == template) return 1; /* Wildcard was up front - no prefix to clip */
- tmplen = cp1 - template;
-
- /* Try to find template prefix on filespec */
- if (!memcmp(base,template,tmplen)) return 1; /* Nothing before prefix - we're done */
- for (; cp2 - base > tmplen; base++) {
- if (*base != '/') continue;
- if (!memcmp(base + 1,template,tmplen)) break;
- }
- if (cp2 - base == tmplen) return 0; /* Not there - not good */
- base++; /* Move past leading '/' */
- /* Copy down remaining portion of filespec, including trailing NUL */
- memmove(fspec,base,cp2 - base + 1);
- return 1;
-
- } /* end of trim_unixpath() */
- /*}}}*/
-
-
- /*
- * VMS readdir() routines.
- * Written by Rich $alz, <rsalz@bbn.com> in August, 1990.
- * This code has no copyright.
- *
- * 21-Jul-1994 Charles Bailey bailey@genetics.upenn.edu
- * Minor modifications to original routines.
- */
-
- /* Number of elements in vms_versions array */
- #define VERSIZE(e) (sizeof e->vms_versions / sizeof e->vms_versions[0])
-
- /*
- * Open a directory, return a handle for later use.
- */
- /*{{{ DIR *opendir(char*name) */
- DIR *
- opendir(char *name)
- {
- DIR *dd;
- char dir[NAM$C_MAXRSS+1];
-
- /* Get memory for the handle, and the pattern. */
- New(7006,dd,1,DIR);
- if (do_tovmspath(name,dir,0) == NULL) {
- Safefree((char *)dd);
- return(NULL);
- }
- New(7007,dd->pattern,strlen(dir)+sizeof "*.*" + 1,char);
-
- /* Fill in the fields; mainly playing with the descriptor. */
- (void)sprintf(dd->pattern, "%s*.*",dir);
- dd->context = 0;
- dd->count = 0;
- dd->vms_wantversions = 0;
- dd->pat.dsc$a_pointer = dd->pattern;
- dd->pat.dsc$w_length = strlen(dd->pattern);
- dd->pat.dsc$b_dtype = DSC$K_DTYPE_T;
- dd->pat.dsc$b_class = DSC$K_CLASS_S;
-
- return dd;
- } /* end of opendir() */
- /*}}}*/
-
- /*
- * Set the flag to indicate we want versions or not.
- */
- /*{{{ void vmsreaddirversions(DIR *dd, int flag)*/
- void
- vmsreaddirversions(DIR *dd, int flag)
- {
- dd->vms_wantversions = flag;
- }
- /*}}}*/
-
- /*
- * Free up an opened directory.
- */
- /*{{{ void closedir(DIR *dd)*/
- void
- closedir(DIR *dd)
- {
- (void)lib$find_file_end(&dd->context);
- Safefree(dd->pattern);
- Safefree((char *)dd);
- }
- /*}}}*/
-
- /*
- * Collect all the version numbers for the current file.
- */
- static void
- collectversions(dd)
- DIR *dd;
- {
- struct dsc$descriptor_s pat;
- struct dsc$descriptor_s res;
- struct dirent *e;
- char *p, *text, buff[sizeof dd->entry.d_name];
- int i;
- unsigned long context, tmpsts;
-
- /* Convenient shorthand. */
- e = &dd->entry;
-
- /* Add the version wildcard, ignoring the "*.*" put on before */
- i = strlen(dd->pattern);
- New(7008,text,i + e->d_namlen + 3,char);
- (void)strcpy(text, dd->pattern);
- (void)sprintf(&text[i - 3], "%s;*", e->d_name);
-
- /* Set up the pattern descriptor. */
- pat.dsc$a_pointer = text;
- pat.dsc$w_length = i + e->d_namlen - 1;
- pat.dsc$b_dtype = DSC$K_DTYPE_T;
- pat.dsc$b_class = DSC$K_CLASS_S;
-
- /* Set up result descriptor. */
- res.dsc$a_pointer = buff;
- res.dsc$w_length = sizeof buff - 2;
- res.dsc$b_dtype = DSC$K_DTYPE_T;
- res.dsc$b_class = DSC$K_CLASS_S;
-
- /* Read files, collecting versions. */
- for (context = 0, e->vms_verscount = 0;
- e->vms_verscount < VERSIZE(e);
- e->vms_verscount++) {
- tmpsts = lib$find_file(&pat, &res, &context);
- if (tmpsts == RMS$_NMF || context == 0) break;
- _ckvmssts(tmpsts);
- buff[sizeof buff - 1] = '\0';
- if ((p = strchr(buff, ';')))
- e->vms_versions[e->vms_verscount] = atoi(p + 1);
- else
- e->vms_versions[e->vms_verscount] = -1;
- }
-
- _ckvmssts(lib$find_file_end(&context));
- Safefree(text);
-
- } /* end of collectversions() */
-
- /*
- * Read the next entry from the directory.
- */
- /*{{{ struct dirent *readdir(DIR *dd)*/
- struct dirent *
- readdir(DIR *dd)
- {
- struct dsc$descriptor_s res;
- char *p, buff[sizeof dd->entry.d_name];
- unsigned long int tmpsts;
-
- /* Set up result descriptor, and get next file. */
- res.dsc$a_pointer = buff;
- res.dsc$w_length = sizeof buff - 2;
- res.dsc$b_dtype = DSC$K_DTYPE_T;
- res.dsc$b_class = DSC$K_CLASS_S;
- dd->count++;
- tmpsts = lib$find_file(&dd->pat, &res, &dd->context);
- if ( tmpsts == RMS$_NMF || tmpsts == RMS$_FNF ||
- dd->context == 0) return NULL; /* None left. */
-
- /* Force the buffer to end with a NUL, and downcase name to match C convention. */
- buff[sizeof buff - 1] = '\0';
- for (p = buff; !isspace(*p); p++) *p = _tolower(*p);
- *p = '\0';
-
- /* Skip any directory component and just copy the name. */
- if ((p = strchr(buff, ']'))) (void)strcpy(dd->entry.d_name, p + 1);
- else (void)strcpy(dd->entry.d_name, buff);
-
- /* Clobber the version. */
- if ((p = strchr(dd->entry.d_name, ';'))) *p = '\0';
-
- dd->entry.d_namlen = strlen(dd->entry.d_name);
- dd->entry.vms_verscount = 0;
- if (dd->vms_wantversions) collectversions(dd);
- return &dd->entry;
-
- } /* end of readdir() */
- /*}}}*/
-
- /*
- * Return something that can be used in a seekdir later.
- */
- /*{{{ long telldir(DIR *dd)*/
- long
- telldir(DIR *dd)
- {
- return dd->count;
- }
- /*}}}*/
-
- /*
- * Return to a spot where we used to be. Brute force.
- */
- /*{{{ void seekdir(DIR *dd,long count)*/
- void
- seekdir(DIR *dd, long count)
- {
- int vms_wantversions;
-
- /* If we haven't done anything yet... */
- if (dd->count == 0)
- return;
-
- /* Remember some state, and clear it. */
- vms_wantversions = dd->vms_wantversions;
- dd->vms_wantversions = 0;
- _ckvmssts(lib$find_file_end(&dd->context));
- dd->context = 0;
-
- /* The increment is in readdir(). */
- for (dd->count = 0; dd->count < count; )
- (void)readdir(dd);
-
- dd->vms_wantversions = vms_wantversions;
-
- } /* end of seekdir() */
- /*}}}*/
-
- /* VMS subprocess management
- *
- * my_vfork() - just a vfork(), after setting a flag to record that
- * the current script is trying a Unix-style fork/exec.
- *
- * vms_do_aexec() and vms_do_exec() are called in response to the
- * perl 'exec' function. If this follows a vfork call, then they
- * call out the the regular perl routines in doio.c which do an
- * execvp (for those who really want to try this under VMS).
- * Otherwise, they do exactly what the perl docs say exec should
- * do - terminate the current script and invoke a new command
- * (See below for notes on command syntax.)
- *
- * do_aspawn() and do_spawn() implement the VMS side of the perl
- * 'system' function.
- *
- * Note on command arguments to perl 'exec' and 'system': When handled
- * in 'VMSish fashion' (i.e. not after a call to vfork) The args
- * are concatenated to form a DCL command string. If the first arg
- * begins with '$' (i.e. the perl script had "\$ Type" or some such),
- * the the command string is hrnded off to DCL directly. Otherwise,
- * the first token of the command is taken as the filespec of an image
- * to run. The filespec is expanded using a default type of '.EXE' and
- * the process defaults for device, directory, etc., and the resultant
- * filespec is invoked using the DCL verb 'MCR', and passed the rest of
- * the command string as parameters. This is perhaps a bit compicated,
- * but I hope it will form a happy medium between what VMS folks expect
- * from lib$spawn and what Unix folks expect from exec.
- */
-
- static int vfork_called;
-
- /*{{{int my_vfork()*/
- int
- my_vfork()
- {
- vfork_called++;
- return vfork();
- }
- /*}}}*/
-
- static void
- setup_argstr(SV *really, SV **mark, SV **sp, char **argstr)
- {
- char *tmps, *junk;
- register size_t cmdlen = 0;
- size_t rlen;
- register SV **idx;
-
- idx = mark;
- tmps = SvPV(really,rlen);
- if (really && *tmps) {
- cmdlen += rlen + 1;
- idx++;
- }
-
- for (idx++; idx <= sp; idx++) {
- if (*idx) {
- junk = SvPVx(*idx,rlen);
- cmdlen += rlen ? rlen + 1 : 0;
- }
- }
- New(401,*argstr,cmdlen, char);
-
- if (*tmps) {
- strcpy(*argstr,tmps);
- mark++;
- }
- else **argstr = '\0';
- while (++mark <= sp) {
- if (*mark) {
- strcat(*argstr," ");
- strcat(*argstr,SvPVx(*mark,na));
- }
- }
-
- } /* end of setup_argstr() */
-
- static unsigned long int
- setup_cmddsc(char *cmd, struct dsc$descriptor_s *cmddsc, int check_img)
- {
- char resspec[NAM$C_MAXRSS+1];
- $DESCRIPTOR(defdsc,".EXE");
- $DESCRIPTOR(resdsc,resspec);
- struct dsc$descriptor_s imgdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
- unsigned long int cxt = 0, flags = 1, retsts;
- register char *s, *rest, *cp;
- register int isdcl = 0;
-
- s = cmd;
- while (*s && isspace(*s)) s++;
- if (check_img) {
- if (*s == '$') { /* Check whether this is a DCL command: leading $ and */
- isdcl = 1; /* no dev/dir separators (i.e. not a foreign command) */
- for (cp = s; *cp && *cp != '/' && !isspace(*cp); cp++) {
- if (*cp == ':' || *cp == '[' || *cp == '<') {
- isdcl = 0;
- break;
- }
- }
- }
- }
- else isdcl = 1;
- if (isdcl) { /* It's a DCL command, just do it. */
- cmddsc->dsc$a_pointer = cmd;
- cmddsc->dsc$w_length = strlen(cmd);
- }
- else { /* assume first token is an image spec */
- cmd = s;
- while (*s && !isspace(*s)) s++;
- rest = *s ? s : 0;
- imgdsc.dsc$a_pointer = cmd;
- imgdsc.dsc$w_length = s - cmd;
- retsts = lib$find_file(&imgdsc,&resdsc,&cxt,&defdsc,0,0,&flags);
- if ((retsts & STS$M_CODE) == (SHR$_NOWILD & STS$M_CODE)) return retsts;
- else {
- _ckvmssts(retsts);
- _ckvmssts(lib$find_file_end(&cxt));
- s = resspec;
- while (*s && !isspace(*s)) s++;
- *s = '\0';
- New(402,Cmd,6 + s - resspec + (rest ? strlen(rest) : 0),char);
- strcpy(Cmd,"$ MCR ");
- strcat(Cmd,resspec);
- if (rest) strcat(Cmd,rest);
- cmddsc->dsc$a_pointer = Cmd;
- cmddsc->dsc$w_length = strlen(Cmd);
- }
- }
-
- return SS$_NORMAL;
- } /* end of setup_cmddsc() */
-
- /* {{{ bool vms_do_aexec(SV *really,SV **mark,SV **sp) */
- bool
- vms_do_aexec(SV *really,SV **mark,SV **sp)
- {
-
- if (sp > mark) {
- if (vfork_called) { /* this follows a vfork - act Unixish */
- vfork_called--;
- if (vfork_called < 0) {
- warn("Internal inconsistency in tracking vforks");
- vfork_called = 0;
- }
- else return do_aexec(really,mark,sp);
- }
-
- /* no vfork - act VMSish */
- setup_argstr(really,mark,sp,Argv);
- return vms_do_exec(*Argv);
- }
-
- return FALSE;
- } /* end of vms_do_aexec() */
- /*}}}*/
-
- /* {{{bool vms_do_exec(char *cmd) */
- bool
- vms_do_exec(char *cmd)
- {
-
- if (vfork_called) { /* this follows a vfork - act Unixish */
- vfork_called--;
- if (vfork_called < 0) {
- warn("Internal inconsistency in tracking vforks");
- vfork_called = 0;
- }
- else return do_exec(cmd);
- }
-
- { /* no vfork - act VMSish */
- struct dsc$descriptor_s cmddsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
- unsigned long int retsts;
-
- if ((retsts = setup_cmddsc(cmd,&cmddsc,1)) & 1)
- retsts = lib$do_command(&cmddsc);
-
- set_errno(EVMSERR);
- set_vaxc_errno(retsts);
- if (dowarn)
- warn("Can't exec \"%s\": %s", cmddsc.dsc$a_pointer, Strerror(errno));
- do_execfree();
- }
-
- return FALSE;
-
- } /* end of vms_do_exec() */
- /*}}}*/
-
- unsigned long int do_spawn(char *);
-
- /* {{{ unsigned long int do_aspawn(SV *really,SV **mark,SV **sp) */
- unsigned long int
- do_aspawn(SV *really,SV **mark,SV **sp)
- {
-
- if (sp > mark) {
- setup_argstr(really,mark,sp,Argv);
- return do_spawn(*Argv);
- }
-
- return SS$_ABORT;
- } /* end of do_aspawn() */
- /*}}}*/
-
- /* {{{unsigned long int do_spawn(char *cmd) */
- unsigned long int
- do_spawn(char *cmd)
- {
- struct dsc$descriptor_s cmddsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
- unsigned long int substs;
-
- if (!cmd || !*cmd) {
- _ckvmssts(lib$spawn(0,0,0,0,0,&substs,0,0,0,0,0));
- }
- else if ((substs = setup_cmddsc(cmd,&cmddsc,0)) & 1) {
- _ckvmssts(lib$spawn(&cmddsc,0,0,0,0,&substs,0,0,0,0,0));
- }
-
- if (!(substs&1)) {
- set_errno(EVMSERR);
- set_vaxc_errno(substs);
- if (dowarn)
- warn("Can't exec \"%s\": %s",
- (cmd && *cmd) ? cmddsc.dsc$a_pointer : "", Strerror(errno));
- }
- return substs;
-
- } /* end of do_spawn() */
- /*}}}*/
-
- /*
- * A simple fwrite replacement which outputs itmsz*nitm chars without
- * introducing record boundaries every itmsz chars.
- */
- /*{{{ int my_fwrite(void *src, size_t itmsz, size_t nitm, FILE *dest)*/
- int
- my_fwrite(void *src, size_t itmsz, size_t nitm, FILE *dest)
- {
- register char *cp, *end;
-
- end = (char *)src + itmsz * nitm;
-
- while ((char *)src <= end) {
- for (cp = src; cp <= end; cp++) if (!*cp) break;
- if (fputs(src,dest) == EOF) return EOF;
- if (cp < end)
- if (fputc('\0',dest) == EOF) return EOF;
- src = cp + 1;
- }
-
- return 1;
-
- } /* end of my_fwrite() */
- /*}}}*/
-
- /*
- * Here are replacements for the following Unix routines in the VMS environment:
- * getpwuid Get information for a particular UIC or UID
- * getpwnam Get information for a named user
- * getpwent Get information for each user in the rights database
- * setpwent Reset search to the start of the rights database
- * endpwent Finish searching for users in the rights database
- *
- * getpwuid, getpwnam, and getpwent return a pointer to the passwd structure
- * (defined in pwd.h), which contains the following fields:-
- * struct passwd {
- * char *pw_name; Username (in lower case)
- * char *pw_passwd; Hashed password
- * unsigned int pw_uid; UIC
- * unsigned int pw_gid; UIC group number
- * char *pw_unixdir; Default device/directory (VMS-style)
- * char *pw_gecos; Owner name
- * char *pw_dir; Default device/directory (Unix-style)
- * char *pw_shell; Default CLI name (eg. DCL)
- * };
- * If the specified user does not exist, getpwuid and getpwnam return NULL.
- *
- * pw_uid is the full UIC (eg. what's returned by stat() in st_uid).
- * not the UIC member number (eg. what's returned by getuid()),
- * getpwuid() can accept either as input (if uid is specified, the caller's
- * UIC group is used), though it won't recognise gid=0.
- *
- * Note that in VMS it is necessary to have GRPPRV or SYSPRV to return
- * information about other users in your group or in other groups, respectively.
- * If the required privilege is not available, then these routines fill only
- * the pw_name, pw_uid, and pw_gid fields (the others point to an empty
- * string).
- *
- * By Tim Adye (T.J.Adye@rl.ac.uk), 10th February 1995.
- */
-
- /* sizes of various UAF record fields */
- #define UAI$S_USERNAME 12
- #define UAI$S_IDENT 31
- #define UAI$S_OWNER 31
- #define UAI$S_DEFDEV 31
- #define UAI$S_DEFDIR 63
- #define UAI$S_DEFCLI 31
- #define UAI$S_PWD 8
-
- #define valid_uic(uic) ((uic).uic$v_format == UIC$K_UIC_FORMAT && \
- (uic).uic$v_member != UIC$K_WILD_MEMBER && \
- (uic).uic$v_group != UIC$K_WILD_GROUP)
-
- static const char __empty[]= "";
- static const struct passwd __passwd_empty=
- {(char *) __empty, (char *) __empty, 0, 0,
- (char *) __empty, (char *) __empty, (char *) __empty, (char *) __empty};
- static int contxt= 0;
- static struct passwd __pwdcache;
- static char __pw_namecache[UAI$S_IDENT+1];
-
- static char *_mystrtolower(char *str)
- {
- if (str) for (; *str; ++str) *str= tolower(*str);
- return str;
- }
-
- /*
- * This routine does most of the work extracting the user information.
- */
- static int fillpasswd (const char *name, struct passwd *pwd)
- {
- static struct {
- unsigned char length;
- char pw_gecos[UAI$S_OWNER+1];
- } owner;
- static union uicdef uic;
- static struct {
- unsigned char length;
- char pw_dir[UAI$S_DEFDEV+UAI$S_DEFDIR+1];
- } defdev;
- static struct {
- unsigned char length;
- char unixdir[UAI$_DEFDEV+UAI$S_DEFDIR+1];
- } defdir;
- static struct {
- unsigned char length;
- char pw_shell[UAI$S_DEFCLI+1];
- } defcli;
- static char pw_passwd[UAI$S_PWD+1];
-
- static unsigned short lowner, luic, ldefdev, ldefdir, ldefcli, lpwd;
- struct dsc$descriptor_s name_desc;
- int status;
-
- static const struct itmlst_3 itmlst[]= {
- {UAI$S_OWNER+1, UAI$_OWNER, &owner, &lowner},
- {sizeof(uic), UAI$_UIC, &uic, &luic},
- {UAI$S_DEFDEV+1, UAI$_DEFDEV, &defdev, &ldefdev},
- {UAI$S_DEFDIR+1, UAI$_DEFDIR, &defdir, &ldefdir},
- {UAI$S_DEFCLI+1, UAI$_DEFCLI, &defcli, &ldefcli},
- {UAI$S_PWD, UAI$_PWD, pw_passwd, &lpwd},
- {0, 0, NULL, NULL}};
-
- name_desc.dsc$w_length= strlen(name);
- name_desc.dsc$b_dtype= DSC$K_DTYPE_T;
- name_desc.dsc$b_class= DSC$K_CLASS_S;
- name_desc.dsc$a_pointer= (char *) name;
-
- /* Note that sys$getuai returns many fields as counted strings. */
- status= sys$getuai(0, 0, &name_desc, &itmlst, 0, 0, 0);
- if (!(status&1)) return status;
-
- if ((int) owner.length < lowner) lowner= (int) owner.length;
- if ((int) defdev.length < ldefdev) ldefdev= (int) defdev.length;
- if ((int) defdir.length < ldefdir) ldefdir= (int) defdir.length;
- if ((int) defcli.length < ldefcli) ldefcli= (int) defcli.length;
- memcpy(&defdev.pw_dir[ldefdev], &defdir.unixdir[0], ldefdir);
- owner.pw_gecos[lowner]= '\0';
- defdev.pw_dir[ldefdev+ldefdir]= '\0';
- defcli.pw_shell[ldefcli]= '\0';
- if (valid_uic(uic)) {
- pwd->pw_uid= uic.uic$l_uic;
- pwd->pw_gid= uic.uic$v_group;
- }
- else
- warn("getpwnam returned invalid UIC %#o for user \"%s\"");
- pwd->pw_passwd= pw_passwd;
- pwd->pw_gecos= owner.pw_gecos;
- pwd->pw_dir= defdev.pw_dir;
- pwd->pw_unixdir= do_tounixpath(defdev.pw_dir, defdir.unixdir,1);
- pwd->pw_shell= defcli.pw_shell;
- if (pwd->pw_unixdir && pwd->pw_unixdir[0]) {
- int ldir;
- ldir= strlen(pwd->pw_unixdir) - 1;
- if (pwd->pw_unixdir[ldir]=='/') pwd->pw_unixdir[ldir]= '\0';
- }
- else
- strcpy(pwd->pw_unixdir, pwd->pw_dir);
- _mystrtolower(pwd->pw_unixdir);
- return status;
- }
-
- /*
- * Get information for a named user.
- */
- /*{{{struct passwd *getpwnam(char *name)*/
- struct passwd *my_getpwnam(char *name)
- {
- struct dsc$descriptor_s name_desc;
- union uicdef uic;
- unsigned long int status, stat;
-
- __pwdcache = __passwd_empty;
- if ((status = fillpasswd(name, &__pwdcache)) == SS$_NOSYSPRV
- || status == SS$_NOGRPPRV || status == RMS$_RNF) {
- /* We still may be able to determine pw_uid and pw_gid */
- name_desc.dsc$w_length= strlen(name);
- name_desc.dsc$b_dtype= DSC$K_DTYPE_T;
- name_desc.dsc$b_class= DSC$K_CLASS_S;
- name_desc.dsc$a_pointer= (char *) name;
- if ((stat = sys$asctoid(&name_desc, &uic, 0)) == SS$_NORMAL) {
- __pwdcache.pw_uid= uic.uic$l_uic;
- __pwdcache.pw_gid= uic.uic$v_group;
- }
- else if (stat == SS$_NOSUCHID || stat == RMS$_PRV) return NULL;
- else { _ckvmssts(stat); }
- }
- else { _ckvmssts(status); }
- strncpy(__pw_namecache, name, sizeof(__pw_namecache));
- __pw_namecache[sizeof __pw_namecache - 1] = '\0';
- __pwdcache.pw_name= __pw_namecache;
- return &__pwdcache;
- } /* end of my_getpwnam() */
- /*}}}*/
-
- /*
- * Get information for a particular UIC or UID.
- * Called by my_getpwent with uid=-1 to list all users.
- */
- /*{{{struct passwd *my_getpwuid(Uid_t uid)*/
- struct passwd *my_getpwuid(Uid_t uid)
- {
- const $DESCRIPTOR(name_desc,__pw_namecache);
- unsigned short lname;
- union uicdef uic;
- unsigned long int status;
-
- if (uid == (unsigned int) -1) {
- do {
- status = sys$idtoasc(-1, &lname, &name_desc, &uic, 0, &contxt);
- if (status == SS$_NOSUCHID || status == RMS$_PRV) {
- my_endpwent();
- return NULL;
- }
- else { _ckvmssts(status); }
- } while (!valid_uic (uic));
- }
- else {
- uic.uic$l_uic= uid;
- if (!uic.uic$v_group) uic.uic$v_group= getgid();
- if (valid_uic(uic))
- status = sys$idtoasc(uic.uic$l_uic, &lname, &name_desc, 0, 0, 0);
- else status = SS$_IVIDENT;
- _ckvmssts(status);
- }
- __pw_namecache[lname]= '\0';
- _mystrtolower(__pw_namecache);
-
- __pwdcache = __passwd_empty;
- __pwdcache.pw_name = __pw_namecache;
-
- /* Fill in the uid and gid in case fillpasswd can't (eg. no privilege).
- The identifier's value is usually the UIC, but it doesn't have to be,
- so if we can, we let fillpasswd update this. */
- __pwdcache.pw_uid = uic.uic$l_uic;
- __pwdcache.pw_gid = uic.uic$v_group;
-
- status = fillpasswd(__pw_namecache, &__pwdcache);
- if (status != SS$_NOSYSPRV && status != SS$_NOGRPPRV &&
- status != RMS$_RNF) { _ckvmssts(status); }
- return &__pwdcache;
-
- } /* end of my_getpwuid() */
- /*}}}*/
-
- /*
- * Get information for next user.
- */
- /*{{{struct passwd *my_getpwent()*/
- struct passwd *my_getpwent()
- {
- return (my_getpwuid((unsigned int) -1));
- }
- /*}}}*/
-
- /*
- * Finish searching rights database for users.
- */
- /*{{{void my_endpwent()*/
- void my_endpwent()
- {
- if (contxt) {
- _ckvmssts(sys$finish_rdb(&contxt));
- contxt= 0;
- }
- }
- /*}}}*/
-
- /*
- * flex_stat, flex_fstat
- * basic stat, but gets it right when asked to stat
- * a Unix-style path ending in a directory name (e.g. dir1/dir2/dir3)
- */
-
- /* encode_dev packs a VMS device name string into an integer to allow
- * simple comparisons. This can be used, for example, to check whether two
- * files are located on the same device, by comparing their encoded device
- * names. Even a string comparison would not do, because stat() reuses the
- * device name buffer for each call; so without encode_dev, it would be
- * necessary to save the buffer and use strcmp (this would mean a number of
- * changes to the standard Perl code, to say nothing of what a Perl script
- * would have to do.
- *
- * The device lock id, if it exists, should be unique (unless perhaps compared
- * with lock ids transferred from other nodes). We have a lock id if the disk is
- * mounted cluster-wide, which is when we tend to get long (host-qualified)
- * device names. Thus we use the lock id in preference, and only if that isn't
- * available, do we try to pack the device name into an integer (flagged by
- * the sign bit (LOCKID_MASK) being set).
- *
- * Note that encode_dev cann guarantee an 1-to-1 correspondence twixt device
- * name and its encoded form, but it seems very unlikely that we will find
- * two files on different disks that share the same encoded device names,
- * and even more remote that they will share the same file id (if the test
- * is to check for the same file).
- *
- * A better method might be to use sys$device_scan on the first call, and to
- * search for the device, returning an index into the cached array.
- * The number returned would be more intelligable.
- * This is probably not worth it, and anyway would take quite a bit longer
- * on the first call.
- */
- #define LOCKID_MASK 0x80000000 /* Use 0 to force device name use only */
- static dev_t encode_dev (const char *dev)
- {
- int i;
- unsigned long int f;
- dev_t enc;
- char c;
- const char *q;
-
- if (!dev || !dev[0]) return 0;
-
- #if LOCKID_MASK
- {
- struct dsc$descriptor_s dev_desc;
- unsigned long int status, lockid, item = DVI$_LOCKID;
-
- /* For cluster-mounted disks, the disk lock identifier is unique, so we
- can try that first. */
- dev_desc.dsc$w_length = strlen (dev);
- dev_desc.dsc$b_dtype = DSC$K_DTYPE_T;
- dev_desc.dsc$b_class = DSC$K_CLASS_S;
- dev_desc.dsc$a_pointer = (char *) dev;
- _ckvmssts(lib$getdvi(&item, 0, &dev_desc, &lockid, 0, 0));
- if (lockid) return (lockid & ~LOCKID_MASK);
- }
- #endif
-
- /* Otherwise we try to encode the device name */
- enc = 0;
- f = 1;
- i = 0;
- for (q = dev + strlen(dev); q--; q >= dev) {
- if (isdigit (*q))
- c= (*q) - '0';
- else if (isalpha (toupper (*q)))
- c= toupper (*q) - 'A' + (char)10;
- else
- continue; /* Skip '$'s */
- i++;
- if (i>6) break; /* 36^7 is too large to fit in an unsigned long int */
- if (i>1) f *= 36;
- enc += f * (unsigned long int) c;
- }
- return (enc | LOCKID_MASK); /* May have already overflowed into bit 31 */
-
- } /* end of encode_dev() */
-
- static char namecache[NAM$C_MAXRSS+1];
-
- static int
- is_null_device(name)
- const char *name;
- {
- /* The VMS null device is named "_NLA0:", usually abbreviated as "NL:".
- The underscore prefix, controller letter, and unit number are
- independently optional; for our purposes, the colon punctuation
- is not. The colon can be trailed by optional directory and/or
- filename, but two consecutive colons indicates a nodename rather
- than a device. [pr] */
- if (*name == '_') ++name;
- if (tolower(*name++) != 'n') return 0;
- if (tolower(*name++) != 'l') return 0;
- if (tolower(*name) == 'a') ++name;
- if (*name == '0') ++name;
- return (*name++ == ':') && (*name != ':');
- }
-
- /* Do the permissions allow some operation? Assumes statcache already set. */
- /* Do this via $Check_Access on VMS, since the CRTL stat() returns only a
- * subset of the applicable information.
- */
- /*{{{I32 cando(I32 bit, I32 effective, struct stat *statbufp)*/
- I32
- cando(I32 bit, I32 effective, struct stat *statbufp)
- {
- if (statbufp == &statcache)
- return cando_by_name(bit,effective,namecache);
- else {
- char fname[NAM$C_MAXRSS+1];
- unsigned long int retsts;
- struct dsc$descriptor_s devdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0},
- namdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
-
- /* If the struct mystat is stale, we're OOL; stat() overwrites the
- device name on successive calls */
- devdsc.dsc$a_pointer = statbufp->st_devnam;
- devdsc.dsc$w_length = strlen(statbufp->st_devnam);
- namdsc.dsc$a_pointer = fname;
- namdsc.dsc$w_length = sizeof fname - 1;
-
- retsts = lib$fid_to_name(&devdsc,statbufp->st_inode_u.fid,&namdsc,
- &namdsc.dsc$w_length,0,0);
- if (retsts & 1) {
- fname[namdsc.dsc$w_length] = '\0';
- return cando_by_name(bit,effective,fname);
- }
- else if (retsts == SS$_NOSUCHDEV || retsts == SS$_NOSUCHFILE) {
- warn("Can't get filespec - stale stat buffer?\n");
- return FALSE;
- }
- _ckvmssts(retsts);
- return FALSE; /* Should never get to here */
- }
- }
- /*}}}*/
-
- /*{{{I32 cando_by_name(I32 bit, I32 effective, char *fname)*/
- I32
- cando_by_name(I32 bit, I32 effective, char *fname)
- {
- static char usrname[L_cuserid];
- static struct dsc$descriptor_s usrdsc =
- {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, usrname};
-
- unsigned long int objtyp = ACL$C_FILE, access, retsts, privused, iosb[2];
- unsigned short int retlen;
- struct dsc$descriptor_s namdsc = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
- union prvdef curprv;
- struct itmlst_3 armlst[3] = {{sizeof access, CHP$_ACCESS, &access, &retlen},
- {sizeof privused, CHP$_PRIVUSED, &privused, &retlen},{0,0,0,0}};
- struct itmlst_3 jpilst[2] = {{sizeof curprv, JPI$_CURPRIV, &curprv, &retlen},
- {0,0,0,0}};
-
- if (!fname || !*fname) return FALSE;
- if (!usrdsc.dsc$w_length) {
- cuserid(usrname);
- usrdsc.dsc$w_length = strlen(usrname);
- }
- namdsc.dsc$w_length = strlen(fname);
- namdsc.dsc$a_pointer = fname;
- switch (bit) {
- case S_IXUSR:
- case S_IXGRP:
- case S_IXOTH:
- access = ARM$M_EXECUTE;
- break;
- case S_IRUSR:
- case S_IRGRP:
- case S_IROTH:
- access = ARM$M_READ;
- break;
- case S_IWUSR:
- case S_IWGRP:
- case S_IWOTH:
- access = ARM$M_WRITE;
- break;
- case S_IDUSR:
- case S_IDGRP:
- case S_IDOTH:
- access = ARM$M_DELETE;
- break;
- default:
- return FALSE;
- }
-
- retsts = sys$check_access(&objtyp,&namdsc,&usrdsc,armlst);
- if (retsts == SS$_NOPRIV || retsts == RMS$_FNF ||
- retsts == RMS$_DIR || retsts == RMS$_DEV) return FALSE;
- if (retsts == SS$_NORMAL) {
- if (!privused) return TRUE;
- /* We can get access, but only by using privs. Do we have the
- necessary privs currently enabled? */
- _ckvmssts(sys$getjpiw(0,0,0,jpilst,iosb,0,0));
- if ((privused & CHP$M_BYPASS) && !curprv.prv$v_bypass) return FALSE;
- if ((privused & CHP$M_SYSPRV) && !curprv.prv$v_sysprv
- && !curprv.prv$v_bypass) return FALSE;
- if ((privused & CHP$M_GRPPRV) && !curprv.prv$v_grpprv
- && !curprv.prv$v_sysprv && !curprv.prv$v_bypass) return FALSE;
- if ((privused & CHP$M_READALL) && !curprv.prv$v_readall) return FALSE;
- return TRUE;
- }
- _ckvmssts(retsts);
-
- return FALSE; /* Should never get here */
-
- } /* end of cando_by_name() */
- /*}}}*/
-
-
- /*{{{ int flex_fstat(int fd, struct stat *statbuf)*/
- int
- flex_fstat(int fd, struct stat *statbuf)
- {
- char fspec[NAM$C_MAXRSS+1];
-
- if (!getname(fd,fspec,1)) return -1;
- return flex_stat(fspec,statbuf);
-
- } /* end of flex_fstat() */
- /*}}}*/
-
- /*{{{ int flex_stat(char *fspec, struct stat *statbufp)*/
- int
- flex_stat(char *fspec, struct stat *statbufp)
- {
- char fileified[NAM$C_MAXRSS+1];
- int retval,myretval;
- struct stat tmpbuf;
-
-
- if (statbufp == &statcache) do_tovmsspec(fspec,namecache,0);
- if (is_null_device(fspec)) { /* Fake a stat() for the null device */
- memset(statbufp,0,sizeof *statbufp);
- statbufp->st_dev = encode_dev("_NLA0:");
- statbufp->st_mode = S_IFBLK | S_IREAD | S_IWRITE | S_IEXEC;
- statbufp->st_uid = 0x00010001;
- statbufp->st_gid = 0x0001;
- time((time_t *)&statbufp->st_mtime);
- statbufp->st_atime = statbufp->st_ctime = statbufp->st_mtime;
- return 0;
- }
-
- /* We defined 'stat' as 'mystat' in vmsish.h so that declarations of
- * 'struct stat' elsewhere in Perl would use our struct. We go back
- * to the system version here, since we're actually calling their
- * stat().
- */
- #undef stat
-
- if (do_fileify_dirspec(fspec,fileified,0) == NULL) myretval = -1;
- else {
- myretval = stat(fileified,(stat_t *) &tmpbuf);
- }
- retval = stat(fspec,(stat_t *) statbufp);
- if (!myretval) {
- if (retval == -1) {
- *statbufp = tmpbuf;
- retval = 0;
- }
- else if (!retval) { /* Dir with same name. Substitute it. */
- statbufp->st_mode &= ~S_IFDIR;
- statbufp->st_mode |= tmpbuf.st_mode & S_IFDIR;
- strcpy(namecache,fileified);
- }
- }
- if (!retval) statbufp->st_dev = encode_dev(statbufp->st_devnam);
- return retval;
-
- } /* end of flex_stat() */
- /*}}}*/
-
- /*** The following glue provides 'hooks' to make some of the routines
- * from this file available from Perl. These routines are sufficiently
- * basic, and are required sufficiently early in the build process,
- * that's it's nice to have them available to miniperl as well as the
- * full Perl, so they're set up here instead of in an extension. The
- * Perl code which handles importation of these names into a given
- * package lives in [.VMS]Filespec.pm in @INC.
- */
-
- void
- vmsify_fromperl(CV *cv)
- {
- dXSARGS;
- char *vmsified;
-
- if (items != 1) croak("Usage: VMS::Filespec::vmsify(spec)");
- vmsified = do_tovmsspec(SvPV(ST(0),na),NULL,1);
- ST(0) = sv_newmortal();
- if (vmsified != NULL) sv_usepvn(ST(0),vmsified,strlen(vmsified));
- XSRETURN(1);
- }
-
- void
- unixify_fromperl(CV *cv)
- {
- dXSARGS;
- char *unixified;
-
- if (items != 1) croak("Usage: VMS::Filespec::unixify(spec)");
- unixified = do_tounixspec(SvPV(ST(0),na),NULL,1);
- ST(0) = sv_newmortal();
- if (unixified != NULL) sv_usepvn(ST(0),unixified,strlen(unixified));
- XSRETURN(1);
- }
-
- void
- fileify_fromperl(CV *cv)
- {
- dXSARGS;
- char *fileified;
-
- if (items != 1) croak("Usage: VMS::Filespec::fileify(spec)");
- fileified = do_fileify_dirspec(SvPV(ST(0),na),NULL,1);
- ST(0) = sv_newmortal();
- if (fileified != NULL) sv_usepvn(ST(0),fileified,strlen(fileified));
- XSRETURN(1);
- }
-
- void
- pathify_fromperl(CV *cv)
- {
- dXSARGS;
- char *pathified;
-
- if (items != 1) croak("Usage: VMS::Filespec::pathify(spec)");
- pathified = do_pathify_dirspec(SvPV(ST(0),na),NULL,1);
- ST(0) = sv_newmortal();
- if (pathified != NULL) sv_usepvn(ST(0),pathified,strlen(pathified));
- XSRETURN(1);
- }
-
- void
- vmspath_fromperl(CV *cv)
- {
- dXSARGS;
- char *vmspath;
-
- if (items != 1) croak("Usage: VMS::Filespec::vmspath(spec)");
- vmspath = do_tovmspath(SvPV(ST(0),na),NULL,1);
- ST(0) = sv_newmortal();
- if (vmspath != NULL) sv_usepvn(ST(0),vmspath,strlen(vmspath));
- XSRETURN(1);
- }
-
- void
- unixpath_fromperl(CV *cv)
- {
- dXSARGS;
- char *unixpath;
-
- if (items != 1) croak("Usage: VMS::Filespec::unixpath(spec)");
- unixpath = do_tounixpath(SvPV(ST(0),na),NULL,1);
- ST(0) = sv_newmortal();
- if (unixpath != NULL) sv_usepvn(ST(0),unixpath,strlen(unixpath));
- XSRETURN(1);
- }
-
- void
- candelete_fromperl(CV *cv)
- {
- dXSARGS;
- char vmsspec[NAM$C_MAXRSS+1];
-
- if (items != 1) croak("Usage: VMS::Filespec::candelete(spec)");
- if (do_tovmsspec(SvPV(ST(0),na),buf,0) && cando_by_name(S_IDUSR,0,buf))
- ST(0) = &sv_yes;
- else ST(0) = &sv_no;
- XSRETURN(1);
- }
-
- void
- init_os_extras()
- {
- char* file = __FILE__;
-
- newXS("VMS::Filespec::vmsify",vmsify_fromperl,file);
- newXS("VMS::Filespec::unixify",unixify_fromperl,file);
- newXS("VMS::Filespec::pathify",pathify_fromperl,file);
- newXS("VMS::Filespec::fileify",fileify_fromperl,file);
- newXS("VMS::Filespec::vmspath",vmspath_fromperl,file);
- newXS("VMS::Filespec::unixpath",unixpath_fromperl,file);
- newXS("VMS::Filespec::candelete",candelete_fromperl,file);
- return;
- }
-
- /* End of vms.c */
-