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Text File | 1992-03-29 | 31.0 KB | 1,350 lines |
- head 1.6;
- branch ;
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- locks ; strict;
- comment @ * @;
-
-
- 1.6
- date 92.03.28.17.31.54; author kupfer; state Exp;
- branches ;
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- 1.5
- date 92.03.05.21.45.59; author kupfer; state Exp;
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- date 91.04.25.21.01.56; author jhh; state Exp;
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- date 90.10.27.17.56.19; author rab; state Exp;
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- 1.2
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- date 90.03.21.22.37.12; author rab; state Exp;
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- desc
- @@
-
-
- 1.6
- log
- @Restructure to remove some of the ALLOW_LONG_NAMES ifdefs. Fix to
- allow both a long file name and a long link name. Check for Posix
- archives.
- @
- text
- @/* Extract files from a tar archive.
- Copyright (C) 1988 Free Software Foundation
-
- This file is part of GNU Tar.
-
- GNU Tar is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GNU Tar is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU Tar; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /*
- * Extract files from a tar archive.
- *
- * Written 19 Nov 1985 by John Gilmore, ihnp4!hoptoad!gnu.
- *
- * @@(#) extract.c 1.32 87/11/11 - gnu
- */
-
- #include <stdio.h>
- #include <errno.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <sys/param.h>
-
- #ifdef BSD42
- #include <sys/file.h>
- #endif
-
- #ifdef USG
- #include <fcntl.h>
- #endif
-
- #ifdef MSDOS
- #include <fcntl.h>
- #endif /* MSDOS */
-
- /*
- * Some people don't have a #define for these.
- */
- #ifndef O_BINARY
- #define O_BINARY 0
- #endif
- #ifndef O_NDELAY
- #define O_NDELAY 0
- #endif
-
- #ifdef NO_OPEN3
- /* We need the #define's even though we don't use them. */
- #include "open3.h"
- #endif
-
- #ifdef EMUL_OPEN3
- /* Simulated 3-argument open for systems that don't have it */
- #include "open3.h"
- #endif
-
- extern int errno; /* From libc.a */
- extern time_t time(); /* From libc.a */
- extern char *index(); /* From libc.a or port.c */
-
- #include "tar.h"
- #include "port.h"
-
- extern FILE *msg_file;
-
- extern union record *head; /* Points to current tape header */
- extern struct stat hstat; /* Stat struct corresponding */
- extern int head_standard; /* Tape header is in ANSI format */
-
- extern char *save_name;
- extern long save_totsize;
- extern long save_sizeleft;
-
- extern void print_header();
- extern void skip_file();
- extern void skip_extended_headers();
- extern void pr_mkdir();
-
- int make_dirs(); /* Makes required directories */
-
- static time_t now = 0; /* Current time */
- static we_are_root = 0; /* True if our effective uid == 0 */
- static int notumask = ~0; /* Masks out bits user doesn't want */
-
- /*
- * "Scratch" space to store the information about a sparse file before
- * writing the info into the header or extended header
- */
- /*struct sp_array *sparsearray;*/
-
- /* number of elts storable in the sparsearray */
- /*int sp_array_size = 10;*/
-
- /*
- * Set up to extract files.
- */
- extr_init()
- {
- int ourmask;
-
- now = time((time_t *)0);
- if (geteuid() == 0)
- we_are_root = 1;
-
- /*
- * We need to know our umask. But if f_use_protection is set,
- * leave our kernel umask at 0, and our "notumask" at ~0.
- */
- ourmask = umask(0); /* Read it */
- if (!f_use_protection) {
- (void) umask (ourmask); /* Set it back how it was */
- notumask = ~ourmask; /* Make umask override permissions */
- }
- }
-
-
- /*
- * Extract a file from the archive.
- */
- void
- extract_archive()
- {
- register char *data;
- int fd, check, namelen, written, openflag;
- long size;
- time_t acc_upd_times[2];
- register int skipcrud;
- register int i;
- int sparse_ind = 0;
- union record *exhdr;
- int end_nulls;
-
- sp_array_size = 10;
- decode_header(head, &hstat, &head_standard, 1); /* Snarf fields */
-
- if(f_confirm && !confirm("extract",current_filename)) {
- if (gnu_extended_header(head))
- skip_extended_headers();
- skip_file((long)hstat.st_size);
- return;
- }
-
- /* Print the record from 'head' and 'hstat' */
- if (f_verbose)
- print_header();
-
- /*
- * Check for fully specified pathnames and other atrocities.
- *
- * Note, we can't just make a pointer to the new file name,
- * since saverec() might move the header and adjust "head".
- * We have to start from "head" every time we want to touch
- * the header record.
- */
- skipcrud = 0;
- while (!f_absolute_paths && '/' == current_filename[skipcrud]) {
- static int warned_once = 0;
-
- skipcrud++; /* Force relative path */
- if (!warned_once++) {
- msg("Removing leading / from absolute path names in the archive.");
- }
- }
-
- sparsearray = (struct sp_array *) malloc(sp_array_size * sizeof(struct sp_array));
- switch (head->header.linkflag) {
-
- default:
- msg("Unknown file type '%c' for %s, extracted as normal file",
- head->header.linkflag, skipcrud+current_filename);
- /* FALL THRU */
-
- /*
- * JK - What we want to do if the file is sparse is loop through
- * the array of sparse structures in the header and read in
- * and translate the character strings representing 1) the offset
- * at which to write and 2) how many bytes to write into numbers,
- * which we store into the scratch array, "sparsearray". This
- * array makes our life easier the same way it did in creating
- * the tar file that had to deal with a sparse file.
- *
- * After we read in the first five (at most) sparse structures,
- * we check to see if the file has an extended header, i.e.,
- * if more sparse structures are needed to describe the contents
- * of the new file. If so, we read in the extended headers
- * and continue to store their contents into the sparsearray.
- */
- case LF_SPARSE:
- for (i = 0; i < SPARSE_IN_HDR; i++) {
- if (!head->header.sp[i].numbytes)
- break;
- sparsearray[i].offset =
- from_oct(1+12, head->header.sp[i].offset);
- sparsearray[i].numbytes =
- from_oct(1+12, head->header.sp[i].numbytes);
- }
-
- /* end_nulls = from_oct(1+12, head->header.ending_blanks);*/
-
- if (gnu_extended_header(head) &&
- (head->header.isextended & XH_SPARSE_FILE)) {
- /* read in the list of extended headers
- and translate them into the sparsearray
- as before */
-
- static int ind = SPARSE_IN_HDR;
-
- for (;;) {
-
- exhdr = findrec();
- for (i = 0; i < SPARSE_EXT_HDR; i++) {
-
- if (i+ind > sp_array_size-1) {
- /*
- * realloc the scratch area
- * since we've run out of room --
- */
- sparsearray = (struct sp_array *)
- realloc(sparsearray,
- 2 * sp_array_size * (sizeof(struct sp_array)));
- sp_array_size *= 2;
- }
- if (!exhdr->ext_hdr.xh_sp[i].numbytes)
- break;
- sparsearray[i+ind].offset =
- from_oct(1+12, exhdr->ext_hdr.xh_sp[i].offset);
- sparsearray[i+ind].numbytes =
- from_oct(1+12, exhdr->ext_hdr.xh_sp[i].numbytes);
- }
- if (!exhdr->ext_hdr.xh_isextended)
- break;
- else {
- ind += SPARSE_EXT_HDR;
- userec(exhdr);
- }
- }
- userec(exhdr);
- }
-
- /* FALL THRU */
- case LF_OLDNORMAL:
- case LF_NORMAL:
- case LF_CONTIG:
-
- /*
- * Appears to be a file.
- * See if it's really a directory.
- */
- namelen = strlen(skipcrud+current_filename)-1;
- if (current_filename[skipcrud+namelen] == '/')
- goto really_dir;
-
- /* FIXME, deal with protection issues */
- again_file:
- openflag = (f_keep?
- #ifdef sprite
- /*
- * Currently, a bug in the sprite file system makes
- * opening regular files with O_NDELAY a bad idea.
- * Writes fail with EWOULDBLOCK when local cache
- * fills.
- */
- O_BINARY|O_WRONLY|O_CREAT|O_EXCL:
- O_BINARY|O_WRONLY|O_CREAT|O_TRUNC)
- #else
- O_BINARY|O_NDELAY|O_WRONLY|O_CREAT|O_EXCL:
- O_BINARY|O_NDELAY|O_WRONLY|O_CREAT|O_TRUNC)
- #endif
- | ((head->header.linkflag == LF_SPARSE) ? 0 : O_APPEND);
- /*
- * JK - The last | is a kludge to solve the problem
- * the O_APPEND flag causes with files we are
- * trying to make sparse: when a file is opened
- * with O_APPEND, it writes to the last place
- * that something was written, thereby ignoring
- * any lseeks that we have done. We add this
- * extra condition to make it able to lseek when
- * a file is sparse, i.e., we don't open the new
- * file with this flag. (Grump -- this bug caused
- * me to waste a good deal of time, I might add)
- */
-
- if(f_exstdout) {
- fd = 1;
- goto extract_file;
- }
- #ifdef O_CTG
- /*
- * Contiguous files (on the Masscomp) have to specify
- * the size in the open call that creates them.
- */
- if (head->header.linkflag == LF_CONTIG)
- fd = open(skipcrud+current_filename, openflag | O_CTG,
- hstat.st_mode, hstat.st_size);
- else
- #endif
- {
- #ifdef NO_OPEN3
- /*
- * On raw V7 we won't let them specify -k (f_keep), but
- * we just bull ahead and create the files.
- */
- fd = creat(skipcrud+current_filename, hstat.st_mode);
- #else
- /*
- * With 3-arg open(), we can do this up right.
- */
- fd = open(skipcrud+current_filename, openflag, hstat.st_mode);
- #endif
- }
-
- if (fd < 0) {
- if (make_dirs(skipcrud+current_filename))
- goto again_file;
- msg_perror("Could not create file %s",skipcrud+current_filename);
- if (gnu_extended_header(head))
- skip_extended_headers();
- skip_file((long)hstat.st_size);
- goto quit;
- }
-
- extract_file:
- if (head->header.linkflag == LF_SPARSE) {
- char *name;
- int namelen;
-
- /*
- * Kludge alert. NAME is assigned to header.name
- * because during the extraction, the space that
- * contains the header will get scribbled on, and
- * the name will get munged, so any error messages
- * that happen to contain the filename will look
- * REAL interesting unless we do this.
- * (XXX or at least it used to be like this, before
- * get_names() was put in. -mdk)
- */
- namelen = strlen(skipcrud+current_filename);
- name = (char *) malloc((sizeof(char)) * namelen);
- bcopy(skipcrud+current_filename, name, namelen);
- size = hstat.st_size;
- extract_sparse_file(fd, &size, hstat.st_size,
- name);
- }
- else
- for (size = hstat.st_size;
- size > 0;
- size -= written) {
- if(f_multivol) {
- save_name=current_filename;
- save_totsize=hstat.st_size;
- save_sizeleft=size;
- }
-
- /*
- * Locate data, determine max length
- * writeable, write it, record that
- * we have used the data, then check
- * if the write worked.
- */
- data = findrec()->charptr;
- if (data == NULL) { /* Check it... */
- msg("Unexpected EOF on archive file");
- break;
- }
- /*
- * JK - If the file is sparse, use the sparsearray
- * that we created before to lseek into the new
- * file the proper amount, and to see how many
- * bytes we want to write at that position.
- */
- /* if (head->header.linkflag == LF_SPARSE) {
- off_t pos;
-
- pos = lseek(fd, (off_t) sparsearray[sparse_ind].offset, 0);
- printf("%d at %d\n", (int) pos, sparse_ind);
- written = sparsearray[sparse_ind++].numbytes;
- } else*/
- written = endofrecs()->charptr - data;
- if (written > size)
- written = size;
- errno = 0;
- check = write(fd, data, written);
- /*
- * The following is in violation of strict
- * typing, since the arg to userec
- * should be a struct rec *. FIXME.
- */
- userec((union record *)(data + written - 1));
- if (check == written) continue;
- /*
- * Error in writing to file.
- * Print it, skip to next file in archive.
- */
- if(check<0)
- msg_perror("couldn't write to file %s",skipcrud+current_filename);
- else
- msg("could only write %d of %d bytes to file %s",written,check,skipcrud+current_filename);
- skip_file((long)(size - written));
- break; /* Still do the close, mod time, chmod, etc */
- }
-
- if(f_multivol)
- save_name = 0;
-
- /* If writing to stdout, don't try to do anything
- to the filename; it doesn't exist, or we don't
- want to touch it anyway */
- if(f_exstdout)
- break;
-
- /* if (gnu_extended_header(head)) {
- register union record *exhdr;
- register int i;
-
- for (i = 0; i < 21; i++) {
- long offset;
-
- if (!exhdr->ext_hdr.sp[i].numbytes)
- break;
- offset = from_oct(1+12,
- exhdr->ext_hdr.sp[i].offset);
- written = from_oct(1+12,
- exhdr->ext_hdr.sp[i].numbytes);
- lseek(fd, offset, 0);
- check = write(fd, data, written);
- if (check == written) continue;
-
- }
-
-
- }*/
- check = close(fd);
- if (check < 0) {
- msg_perror("Error while closing %s",skipcrud+current_filename);
- }
-
-
- set_filestat:
-
- /*
- * If we are root, set the owner and group of the extracted
- * file. This does what is wanted both on real Unix and on
- * System V. If we are running as a user, we extract as that
- * user; if running as root, we extract as the original owner.
- */
- if (we_are_root) {
- if (chown(skipcrud+current_filename, hstat.st_uid,
- hstat.st_gid) < 0) {
- msg_perror("cannot chown file %s to uid %d gid %d",skipcrud+current_filename,hstat.st_uid,hstat.st_gid);
- }
- }
-
- /*
- * If '-k' is not set, open() or creat() could have saved
- * the permission bits from a previously created file,
- * ignoring the ones we specified.
- * Even if -k is set, if the file has abnormal
- * mode bits, we must chmod since writing or chown() has
- * probably reset them.
- *
- * If -k is set, we know *we* created this file, so the mode
- * bits were set by our open(). If the file is "normal", we
- * skip the chmod. This works because we did umask(0) if -p
- * is set, so umask will have left the specified mode alone.
- */
- if ((!f_keep)
- || (hstat.st_mode & (S_ISUID|S_ISGID|S_ISVTX))) {
- if (chmod(skipcrud+current_filename,
- notumask & (int)hstat.st_mode) < 0) {
- msg_perror("cannot change mode of file %s to %ld",skipcrud+current_filename,notumask & (int)hstat.st_mode);
- }
- }
- /*
- * Set the modified time of the file.
- *
- * Note that we set the accessed time to "now", which
- * is really "the time we started extracting files".
- * unless f_gnudump is used, in which case .st_atime is used
- */
- if (!f_modified) {
- /* fixme if f_gnudump should set ctime too, but how? */
- if(f_gnudump) acc_upd_times[0]=hstat.st_atime;
- else acc_upd_times[0] = now; /* Accessed now */
- acc_upd_times[1] = hstat.st_mtime; /* Mod'd */
- if (utime(skipcrud+current_filename, acc_upd_times) < 0) {
- msg_perror("couldn't change access and modification times of %s",skipcrud+current_filename);
- }
- }
-
- quit:
- break;
-
- case LF_LINK:
- again_link:
- check = link (current_linkname, skipcrud+current_filename);
- if (check == 0)
- break;
- if (make_dirs(skipcrud+current_filename))
- goto again_link;
- if(f_gnudump && errno==EEXIST)
- break;
- msg_perror("Could not link %s to %s",
- skipcrud+current_filename,current_linkname);
- break;
-
- #ifdef S_IFLNK
- case LF_SYMLINK:
- again_symlink:
- check = symlink(current_linkname,
- skipcrud+current_filename);
- /* FIXME, don't worry uid, gid, etc... */
- if (check == 0)
- break;
- if (make_dirs(skipcrud+current_filename))
- goto again_symlink;
- msg_perror("Could not create symlink to %s",current_linkname);
- break;
- #endif
-
- #ifdef S_IFCHR
- case LF_CHR:
- hstat.st_mode |= S_IFCHR;
- goto make_node;
- #endif
-
- #ifdef S_IFBLK
- case LF_BLK:
- hstat.st_mode |= S_IFBLK;
- goto make_node;
- #endif
-
- #ifdef S_IFIFO
- /* If local system doesn't support FIFOs, use default case */
- case LF_FIFO:
- #ifdef sprite
- again_fifo:
- check = SpriteMakeNamedPipe(current_filename, &hstat);
- if (check != 0) {
- if (make_dirs(skipcrud+current_filename)) {
- goto again_fifo;
- }
- msg_perror("Could not make named pipe %s",
- skipcrud+current_filename);
- break;
- }
- goto set_filestat;
- #else
- hstat.st_mode |= S_IFIFO;
- hstat.st_rdev = 0; /* FIXME, do we need this? */
- goto make_node;
- #endif /* sprite */
- #endif /* S_IFIFO */
-
- #ifdef sprite
- case LF_PSEUDODEV:
- again_pdev:
- check = SpriteMakePseudoDev(current_filename, &hstat);
- if (check != 0) {
- if (make_dirs(skipcrud+current_filename)) {
- goto again_pdev;
- }
- msg_perror("Could not make pseudo device %s",
- skipcrud+current_filename);
- break;
- }
- goto set_filestat;
-
- case LF_RMTLINK:
- again_rmtlink:
- check = SpriteMakeRemoteLink(current_linkname,
- current_filename);
- if (check != 0) {
- if (make_dirs(skipcrud+current_filename)) {
- goto again_rmtlink;
- }
- msg_perror("Could not create remote link %s", current_linkname);
- break;
- }
- goto set_filestat;
-
- #endif /* sprite */
-
- make_node:
- check = mknod(skipcrud+current_filename,
- (int) hstat.st_mode, (int) hstat.st_rdev);
- if (check != 0) {
- if (make_dirs(skipcrud+current_filename))
- goto make_node;
- msg_perror("Could not make %s",skipcrud+current_filename);
- break;
- };
- goto set_filestat;
-
- case LF_DIR:
- case LF_DUMPDIR:
- namelen = strlen(skipcrud+current_filename)-1;
- really_dir:
- /* Check for trailing /, and zap as many as we find. */
- while (namelen && current_filename[skipcrud+namelen] == '/')
- current_filename[skipcrud+namelen--] = '\0';
- if(f_gnudump) { /* Read the entry and delete files
- that aren't listed in the archive */
- gnu_restore(skipcrud+current_filename);
-
- } else if(head->header.linkflag==LF_DUMPDIR)
- skip_file((long)(hstat.st_size));
-
-
- again_dir:
- check = mkdir(skipcrud+current_filename,
- 0300 | (int)hstat.st_mode);
- if (check != 0) {
- #ifdef ALLOW_NO_RECURSE
- if (f_no_recurse) {
- if (errno == ENOTDIR || errno == EEXIST) {
- /* check and see if it is a regular file. */
- struct stat buf;
-
- if (stat(skipcrud+current_filename, &buf) != 0) {
- msg_perror("Could not stat %s",
- skipcrud+current_filename);
- break;
- }
- switch (buf.st_mode & S_IFMT) {
-
- case S_IFDIR:
- break;
-
- case S_IFREG:
- msg("Unlinking %s", skipcrud+current_filename);
- if (unlink(skipcrud+current_filename) == 0) {
- goto again_dir;
- }
- msg_perror("Could not unlink %s",
- skipcrud+current_filename);
- break;
-
- default:
- msg("%s already exists");
- break;
- }
- break;
- }
- }
- #endif
- if (make_dirs(skipcrud+current_filename))
- goto again_dir;
- /* If we're trying to create '.', let it be. */
- if (current_filename[skipcrud+namelen] == '.' &&
- (namelen==0 ||
- current_filename[skipcrud+namelen-1]=='/'))
- goto check_perms;
- if(f_gnudump && errno==EEXIST)
- break;
- msg_perror("Could not make directory %s",skipcrud+current_filename);
- break;
- }
-
- check_perms:
- if (0300 != (0300 & (int) hstat.st_mode)) {
- hstat.st_mode |= 0300;
- msg("Added write and execute permission to directory %s",
- skipcrud+current_filename);
- }
-
- goto set_filestat;
- /* FIXME, Remember timestamps for after files created? */
- /* FIXME, change mode after files created (if was R/O dir) */
- case LF_VOLHDR:
- if(f_verbose) {
- printf("Reading %s\n",current_filename);
- }
- break;
-
- case LF_MULTIVOL:
- msg("Can't extract '%s'--file is continued from another volume\n",current_filename);
- skip_file((long)hstat.st_size);
- break;
-
- }
-
- return;
- }
-
- /*
- * After a file/link/symlink/dir creation has failed, see if
- * it's because some required directory was not present, and if
- * so, create all required dirs.
- */
- int
- make_dirs(pathname)
- char *pathname;
- {
- char *p; /* Points into path */
- int madeone = 0; /* Did we do anything yet? */
- int save_errno = errno; /* Remember caller's errno */
- int check;
-
- if (errno != ENOENT)
- return 0; /* Not our problem */
-
- for (p = index(pathname, '/'); p != NULL; p = index(p+1, '/')) {
- /* Avoid mkdir of empty string, if leading or double '/' */
- if (p == pathname || p[-1] == '/')
- continue;
- /* Avoid mkdir where last part of path is '.' */
- if (p[-1] == '.' && (p == pathname+1 || p[-2] == '/'))
- continue;
- *p = 0; /* Truncate the path there */
- again_dir:
- check = mkdir (pathname, 0777); /* Try to create it as a dir */
- if (check == 0) {
- #ifdef ALLOW_NO_RECURSE
- if (f_no_recurse && errno == ENOTDIR) {
- /* check and see if it is a regular file. */
- struct stat buf;
-
- if (stat(pathname, &buf) != 0) {
- msg_perror("Could not stat %s", pathname);
- } else if ((buf.st_mode & S_IFMT) == S_IFREG) {
- msg("Unlinking %s", pathname);
- if (unlink(pathname) == 0) {
- goto again_dir;
- }
- msg_perror("Could not unlink %s", pathname);
- }
- }
- #endif
- /* Fix ownership */
- if (we_are_root) {
- if (chown(pathname, hstat.st_uid,
- hstat.st_gid) < 0) {
- msg_perror("cannot change owner of %s to uid %d gid %d",pathname,hstat.st_uid,hstat.st_gid);
- }
- }
- pr_mkdir(pathname, p-pathname, notumask&0777);
- madeone++; /* Remember if we made one */
- *p = '/';
- continue;
- }
- *p = '/';
- if (errno == EEXIST) /* Directory already exists */
- continue;
- /*
- * Some other error in the mkdir. We return to the caller.
- */
- break;
- }
-
- errno = save_errno; /* Restore caller's errno */
- return madeone; /* Tell them to retry if we made one */
- }
-
- extract_sparse_file(fd, sizeleft, totalsize, name)
- int fd;
- long *sizeleft,
- totalsize;
- char *name;
- {
- register char *data;
- union record *datarec;
- int sparse_ind = 0;
- int written,
- count;
-
- /* assuming sizeleft is initially totalsize */
-
-
- while (*sizeleft > 0) {
- datarec = findrec();
- if (datarec == NULL) {
- msg("Unexpected EOF on archive file");
- return;
- }
- lseek(fd, sparsearray[sparse_ind].offset, 0);
- written = sparsearray[sparse_ind++].numbytes;
- while (written > RECORDSIZE) {
- count = write(fd, datarec->charptr, RECORDSIZE);
- if (count < 0)
- msg_perror("couldn't write to file %s", name);
- written -= count;
- *sizeleft -= count;
- userec(datarec);
- datarec = findrec();
- }
-
- count = write(fd, datarec->charptr, written);
-
- if (count < 0) {
- msg_perror("couldn't write to file %s", name);
- } else if (count != written) {
- msg("could only write %d of %d bytes to file %s", totalsize - *sizeleft, totalsize, name);
- skip_file((long) (*sizeleft));
- }
-
- written -= count;
- *sizeleft -= count;
- userec(datarec);
-
- }
- /* if (end_nulls) {
- register int i;
-
- printf("%d\n", (int) end_nulls);
- for (i = 0; i < end_nulls; i++)
- write(fd, "\000", 1);
- }*/
- userec(datarec);
- }
- @
-
-
- 1.5
- log
- @Lint.
- @
- text
- @a86 3
- #ifdef ALLOW_LONG_NAMES
- extern char *get_long_name();
- #endif
- a140 2
- char filename[MAXPATHLEN];
- char linkname[MAXPATHLEN];
- a142 2
- saverec(&head); /* Make sure it sticks around */
- userec(head); /* And go past it in the archive */
- d145 2
- a146 12
- #ifdef ALLOW_LONG_NAMES
- strcpy(filename, get_long_name(head, XH_FILENAME));
- strcpy(linkname, get_long_name(head, XH_LINKNAME));
- #else
- strcpy(filename, head->header.filename);
- strcpy(linkname, head->header.linkname);
- #endif
- if (head->header.isextended & (XH_FILENAME | XH_LINKNAME)) {
- skip_extended_headers();
- }
- if(f_confirm && !confirm("extract",filename)) {
- if (head->header.isextended)
- a148 1
- saverec((union record **)0);
- d165 1
- a165 1
- while (!f_absolute_paths && '/' == filename[skipcrud]) {
- d179 1
- a179 1
- head->header.linkflag, skipcrud+filename);
- d209 2
- a210 1
- if (head->header.isextended & XH_SPARSE_FILE) {
- d258 2
- a259 2
- namelen = strlen(skipcrud+filename)-1;
- if (filename[skipcrud+namelen] == '/')
- d302 1
- a302 1
- fd = open(skipcrud+filename, openflag | O_CTG,
- d312 1
- a312 1
- fd = creat(skipcrud+filename, hstat.st_mode);
- d317 1
- a317 1
- fd = open(skipcrud+filename, openflag, hstat.st_mode);
- d322 1
- a322 1
- if (make_dirs(skipcrud+filename))
- d324 2
- a325 2
- msg_perror("Could not create file %s",skipcrud+filename);
- if (head->header.isextended)
- d343 2
- d346 1
- a346 1
- namelen = strlen(skipcrud+filename);
- d348 1
- a348 1
- bcopy(skipcrud+filename, name, namelen);
- a356 4
-
- long offset,
- numbytes;
-
- d358 1
- a358 1
- save_name=filename;
- d404 1
- a404 1
- msg_perror("couldn't write to file %s",skipcrud+filename);
- d406 1
- a406 1
- msg("could only write %d of %d bytes to file %s",written,check,skipcrud+filename);
- d420 1
- a420 1
- /* if (head->header.isextended) {
- d443 1
- a443 1
- msg_perror("Error while closing %s",skipcrud+filename);
- d456 1
- a456 1
- if (chown(skipcrud+filename, hstat.st_uid,
- d458 1
- a458 1
- msg_perror("cannot chown file %s to uid %d gid %d",skipcrud+filename,hstat.st_uid,hstat.st_gid);
- d477 1
- a477 1
- if (chmod(skipcrud+filename,
- d479 1
- a479 1
- msg_perror("cannot change mode of file %s to %ld",skipcrud+filename,notumask & (int)hstat.st_mode);
- d494 2
- a495 2
- if (utime(skipcrud+filename, acc_upd_times) < 0) {
- msg_perror("couldn't change access and modification times of %s",skipcrud+filename);
- d504 1
- a504 1
- check = link (linkname, skipcrud+filename);
- d507 1
- a507 1
- if (make_dirs(skipcrud+filename))
- d512 1
- a512 1
- skipcrud+filename,linkname);
- d518 2
- a519 2
- check = symlink(linkname,
- skipcrud+filename);
- d523 1
- a523 1
- if (make_dirs(skipcrud+filename))
- d525 1
- a525 1
- msg_perror("Could not create symlink to %s",linkname);
- d546 1
- a546 1
- check = SpriteMakeNamedPipe(head, hstat);
- d548 1
- a548 1
- if (make_dirs(skipcrud+filename)) {
- d552 1
- a552 1
- skipcrud+filename);
- d566 1
- a566 1
- check = SpriteMakePseudoDev(head, &hstat);
- d568 1
- a568 1
- if (make_dirs(skipcrud+filename)) {
- d572 1
- a572 1
- skipcrud+filename);
- d579 2
- a580 2
- check = SpriteMakeRemoteLink(linkname,
- filename);
- d582 1
- a582 1
- if (make_dirs(skipcrud+filename)) {
- d585 1
- a585 1
- msg_perror("Could not create remote link %s", linkname);
- d593 1
- a593 1
- check = mknod(skipcrud+filename,
- d596 1
- a596 1
- if (make_dirs(skipcrud+filename))
- d598 1
- a598 1
- msg_perror("Could not make %s",skipcrud+filename);
- d605 1
- a605 1
- namelen = strlen(skipcrud+filename)-1;
- d608 2
- a609 2
- while (namelen && filename[skipcrud+namelen] == '/')
- filename[skipcrud+namelen--] = '\0';
- d612 1
- a612 1
- gnu_restore(skipcrud+filename);
- d619 1
- a619 1
- check = mkdir(skipcrud+filename,
- d628 1
- a628 1
- if (stat(skipcrud+filename, &buf) != 0) {
- d630 1
- a630 1
- skipcrud+filename);
- d639 2
- a640 2
- msg("Unlinking %s", skipcrud+filename);
- if (unlink(skipcrud+filename) == 0) {
- d644 1
- a644 1
- skipcrud+filename);
- d655 1
- a655 1
- if (make_dirs(skipcrud+filename))
- d658 1
- a658 1
- if (filename[skipcrud+namelen] == '.' &&
- d660 1
- a660 1
- filename[skipcrud+namelen-1]=='/'))
- d664 1
- a664 1
- msg_perror("Could not make directory %s",skipcrud+filename);
- d672 1
- a672 1
- skipcrud+filename);
- d680 1
- a680 1
- printf("Reading %s\n",filename);
- d685 1
- a685 1
- msg("Can't extract '%s'--file is continued from another volume\n",filename);
- a690 2
- /* We don't need to save it any longer. */
- saverec((union record **) 0); /* Unsave it */
- @
-
-
- 1.4
- log
- @Mary checking this in for Jhh.
- @
- text
- @d585 1
- a585 1
- check = SpriteMakePseudoDev(head, hstat);
- @
-
-
- 1.3
- log
- @Non-recursive directory dumping.
- @
- text
- @d282 10
- d294 1
- @
-
-
- 1.2
- log
- @Added support for long filenames and long symbolic linkes.
- @
- text
- @d631 30
- a660 2
- if (f_no_recurse && errno == EEXIST) {
- break;
- d729 1
- d732 13
- a744 6
- /* Fix ownership */
- if (we_are_root) {
- if (chown(pathname, hstat.st_uid,
- hstat.st_gid) < 0) {
- msg_perror("cannot change owner of %s to uid %d gid %d",pathname,hstat.st_uid,hstat.st_gid);
- }
- d746 13
- a758 4
- pr_mkdir(pathname, p-pathname, notumask&0777);
- madeone++; /* Remember if we made one */
- *p = '/';
- continue;
- d784 1
- a784 1
-
- d807 1
- a807 1
-
- @
-
-
- 1.1
- log
- @Initial revision
- @
- text
- @d32 1
- d87 3
- d144 3
- a146 1
-
- d152 11
- a162 1
- if(f_confirm && !confirm("extract",head->header.name)) {
- d183 1
- a183 1
- while (!f_absolute_paths && '/' == head->header.name[skipcrud]) {
- d197 1
- a197 1
- head->header.linkflag, skipcrud+head->header.name);
- d224 1
- a224 1
-
- d226 2
- a227 2
-
- if (head->header.isextended) {
- d233 1
- a233 1
-
- d235 1
- a235 1
-
- d238 1
- a238 1
-
- d243 1
- a243 1
- */
- d246 1
- a246 1
- 2 * sp_array_size * (sizeof(struct sp_array)));
- d249 1
- a249 1
- if (!exhdr->ext_hdr.sp[i].numbytes)
- d252 1
- a252 1
- from_oct(1+12, exhdr->ext_hdr.sp[i].offset);
- d254 1
- a254 1
- from_oct(1+12, exhdr->ext_hdr.sp[i].numbytes);
- d256 1
- a256 1
- if (!exhdr->ext_hdr.isextended)
- d265 1
- a265 1
-
- d270 1
- d275 2
- a276 2
- namelen = strlen(skipcrud+head->header.name)-1;
- if (head->header.name[skipcrud+namelen] == '/')
- d308 1
- a308 1
- fd = open(skipcrud+head->header.name, openflag | O_CTG,
- d318 1
- a318 2
- fd = creat(skipcrud+head->header.name,
- hstat.st_mode);
- d323 1
- a323 2
- fd = open(skipcrud+head->header.name, openflag,
- hstat.st_mode);
- d328 1
- a328 1
- if (make_dirs(skipcrud+head->header.name))
- d330 1
- a330 1
- msg_perror("Could not create file %s",skipcrud+head->header.name);
- d350 1
- a350 1
- namelen = strlen(skipcrud+head->header.name);
- d352 1
- a352 1
- bcopy(skipcrud+head->header.name, name, namelen);
- d366 1
- a366 1
- save_name=head->header.name;
- d412 1
- a412 1
- msg_perror("couldn't write to file %s",skipcrud+head->header.name);
- d414 1
- a414 1
- msg("could only write %d of %d bytes to file %s",written,check,skipcrud+head->header.name);
- d431 1
- a431 1
-
- d434 1
- a434 1
-
- d438 1
- a438 1
- exhdr->ext_hdr.sp[i].offset);
- d440 1
- a440 1
- exhdr->ext_hdr.sp[i].numbytes);
- d446 1
- a446 1
-
- d449 1
- a449 1
- check = close(fd);
- d451 1
- a451 1
- msg_perror("Error while closing %s",skipcrud+head->header.name);
- d454 1
- a454 1
-
- d464 1
- a464 1
- if (chown(skipcrud+head->header.name, hstat.st_uid,
- d466 1
- a466 1
- msg_perror("cannot chown file %s to uid %d gid %d",skipcrud+head->header.name,hstat.st_uid,hstat.st_gid);
- d485 1
- a485 1
- if (chmod(skipcrud+head->header.name,
- d487 1
- a487 1
- msg_perror("cannot change mode of file %s to %ld",skipcrud+head->header.name,notumask & (int)hstat.st_mode);
- d502 2
- a503 3
- if (utime(skipcrud+head->header.name,
- acc_upd_times) < 0) {
- msg_perror("couldn't change access and modification times of %s",skipcrud+head->header.name);
- d512 1
- a512 2
- check = link (head->header.linkname,
- skipcrud+head->header.name);
- d515 1
- a515 1
- if (make_dirs(skipcrud+head->header.name))
- d520 1
- a520 1
- skipcrud+head->header.name,head->header.linkname);
- d526 2
- a527 2
- check = symlink(head->header.linkname,
- skipcrud+head->header.name);
- d531 1
- a531 1
- if (make_dirs(skipcrud+head->header.name))
- d533 1
- a533 1
- msg_perror("Could not create symlink to %s",head->header.linkname);
- d551 14
- a564 1
- case LF_FIFO:
- d568 31
- a598 1
- #endif
- d601 1
- a601 1
- check = mknod(skipcrud+head->header.name,
- d604 1
- a604 1
- if (make_dirs(skipcrud+head->header.name))
- d606 1
- a606 1
- msg_perror("Could not make %s",skipcrud+head->header.name);
- d613 1
- a613 1
- namelen = strlen(skipcrud+head->header.name)-1;
- d616 2
- a617 2
- while (namelen && head->header.name[skipcrud+namelen] == '/')
- head->header.name[skipcrud+namelen--] = '\0';
- d620 2
- a621 2
- gnu_restore(skipcrud+head->header.name);
-
- d625 1
- a625 1
-
- d627 1
- a627 1
- check = mkdir(skipcrud+head->header.name,
- d630 6
- a635 1
- if (make_dirs(skipcrud+head->header.name))
- d638 1
- a638 1
- if (head->header.name[skipcrud+namelen] == '.' &&
- d640 1
- a640 1
- head->header.name[skipcrud+namelen-1]=='/'))
- d644 1
- a644 1
- msg_perror("Could not make directory %s",skipcrud+head->header.name);
- d647 1
- a647 1
-
- d652 1
- a652 1
- skipcrud+head->header.name);
- d660 1
- a660 1
- printf("Reading %s\n",head->header.name);
- d665 1
- a665 1
- msg("Can't extract '%s'--file is continued from another volume\n",head->header.name);
- d673 1
- @
-