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- /*
- * Copyright (c) 1985 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)ruserpass.c 5.1 (Berkeley) 3/1/89";
- #endif /* not lint */
-
- #include <sys/types.h>
- #include <stdio.h>
- #include <utmp.h>
- #include <ctype.h>
- #include <sys/stat.h>
- #include <errno.h>
- #include "ftp_var.h"
-
- char *renvlook(), *malloc(), *index(), *getenv(), *getpass(), *getlogin();
- char *strcpy();
- struct utmp *getutmp();
- static FILE *cfile;
-
- #define DEFAULT 1
- #define LOGIN 2
- #define PASSWD 3
- #define ACCOUNT 4
- #define MACDEF 5
- #define ID 10
- #define MACH 11
-
- static char tokval[100];
-
- static struct toktab {
- char *tokstr;
- int tval;
- } toktab[]= {
- "default", DEFAULT,
- "login", LOGIN,
- "password", PASSWD,
- "passwd", PASSWD,
- "account", ACCOUNT,
- "machine", MACH,
- "macdef", MACDEF,
- 0, 0
- };
-
- ruserpass(host, aname, apass, aacct)
- char *host, **aname, **apass, **aacct;
- {
- char *hdir, buf[BUFSIZ], *tmp;
- char myname[MAXHOSTNAMELEN], *mydomain;
- int t, i, c, usedefault = 0;
- struct stat stb;
- extern int errno;
-
- hdir = getenv("HOME");
- if (hdir == NULL)
- hdir = ".";
- (void) sprintf(buf, "%s/.netrc", hdir);
- cfile = fopen(buf, "r");
- if (cfile == NULL) {
- if (errno != ENOENT)
- perror(buf);
- return(0);
- }
- if (gethostname(myname, sizeof(myname)) < 0)
- myname[0] = '\0';
- if ((mydomain = index(myname, '.')) == NULL)
- mydomain = "";
- next:
- while ((t = token())) switch(t) {
-
- case DEFAULT:
- usedefault = 1;
- /* FALL THROUGH */
-
- case MACH:
- if (!usedefault) {
- if (token() != ID)
- continue;
- /*
- * Allow match either for user's input host name
- * or official hostname. Also allow match of
- * incompletely-specified host in local domain.
- */
- if (strcasecmp(host, tokval) == 0)
- goto match;
- if (strcasecmp(hostname, tokval) == 0)
- goto match;
- if ((tmp = index(hostname, '.')) != NULL &&
- strcasecmp(tmp, mydomain) == 0 &&
- strncasecmp(hostname, tokval, tmp-hostname) == 0 &&
- tokval[tmp - hostname] == '\0')
- goto match;
- if ((tmp = index(host, '.')) != NULL &&
- strcasecmp(tmp, mydomain) == 0 &&
- strncasecmp(host, tokval, tmp - host) == 0 &&
- tokval[tmp - host] == '\0')
- goto match;
- continue;
- }
- match:
- while ((t = token()) && t != MACH && t != DEFAULT) switch(t) {
-
- case LOGIN:
- if (token())
- if (*aname == 0) {
- *aname = malloc((unsigned) strlen(tokval) + 1);
- (void) strcpy(*aname, tokval);
- } else {
- if (strcmp(*aname, tokval))
- goto next;
- }
- break;
- case PASSWD:
- if (strcmp(*aname, "anonymous") &&
- fstat(fileno(cfile), &stb) >= 0 &&
- (stb.st_mode & 077) != 0) {
- fprintf(stderr, "Error - .netrc file not correct mode.\n");
- fprintf(stderr, "Remove password or correct mode.\n");
- goto bad;
- }
- if (token() && *apass == 0) {
- *apass = malloc((unsigned) strlen(tokval) + 1);
- (void) strcpy(*apass, tokval);
- }
- break;
- case ACCOUNT:
- if (fstat(fileno(cfile), &stb) >= 0
- && (stb.st_mode & 077) != 0) {
- fprintf(stderr, "Error - .netrc file not correct mode.\n");
- fprintf(stderr, "Remove account or correct mode.\n");
- goto bad;
- }
- if (token() && *aacct == 0) {
- *aacct = malloc((unsigned) strlen(tokval) + 1);
- (void) strcpy(*aacct, tokval);
- }
- break;
- case MACDEF:
- if (proxy) {
- (void) fclose(cfile);
- return(0);
- }
- while ((c=getc(cfile)) != EOF && c == ' ' || c == '\t');
- if (c == EOF || c == '\n') {
- printf("Missing macdef name argument.\n");
- goto bad;
- }
- if (macnum == 16) {
- printf("Limit of 16 macros have already been defined\n");
- goto bad;
- }
- tmp = macros[macnum].mac_name;
- *tmp++ = c;
- for (i=0; i < 8 && (c=getc(cfile)) != EOF &&
- !isspace(c); ++i) {
- *tmp++ = c;
- }
- if (c == EOF) {
- printf("Macro definition missing null line terminator.\n");
- goto bad;
- }
- *tmp = '\0';
- if (c != '\n') {
- while ((c=getc(cfile)) != EOF && c != '\n');
- }
- if (c == EOF) {
- printf("Macro definition missing null line terminator.\n");
- goto bad;
- }
- if (macnum == 0) {
- macros[macnum].mac_start = macbuf;
- }
- else {
- macros[macnum].mac_start = macros[macnum-1].mac_end + 1;
- }
- tmp = macros[macnum].mac_start;
- while (tmp != macbuf + 4096) {
- if ((c=getc(cfile)) == EOF) {
- printf("Macro definition missing null line terminator.\n");
- goto bad;
- }
- *tmp = c;
- if (*tmp == '\n') {
- if (*(tmp-1) == '\0') {
- macros[macnum++].mac_end = tmp - 1;
- break;
- }
- *tmp = '\0';
- }
- tmp++;
- }
- if (tmp == macbuf + 4096) {
- printf("4K macro buffer exceeded\n");
- goto bad;
- }
- break;
- default:
- fprintf(stderr, "Unknown .netrc keyword %s\n", tokval);
- break;
- }
- goto done;
- }
- done:
- (void) fclose(cfile);
- return(0);
- bad:
- (void) fclose(cfile);
- return(-1);
- }
-
- static
- token()
- {
- char *cp;
- int c;
- struct toktab *t;
-
- if (feof(cfile))
- return (0);
- while ((c = getc(cfile)) != EOF &&
- (c == '\n' || c == '\t' || c == ' ' || c == ','))
- continue;
- if (c == EOF)
- return (0);
- cp = tokval;
- if (c == '"') {
- while ((c = getc(cfile)) != EOF && c != '"') {
- if (c == '\\')
- c = getc(cfile);
- *cp++ = c;
- }
- } else {
- *cp++ = c;
- while ((c = getc(cfile)) != EOF
- && c != '\n' && c != '\t' && c != ' ' && c != ',') {
- if (c == '\\')
- c = getc(cfile);
- *cp++ = c;
- }
- }
- *cp = 0;
- if (tokval[0] == 0)
- return (0);
- for (t = toktab; t->tokstr; t++)
- if (!strcmp(t->tokstr, tokval))
- return (t->tval);
- return (ID);
- }
-