#include <fcntl.h>
#include <signal.h>
#include <time.h>
+#include <utime.h>
#include <sys/types.h>
#include <sys/sysmacros.h>
static int eofFlag;
static long dataCc;
static int outFd;
-static char outName[TAR_NAME_SIZE];
+static const char *outName;
+static int mode;
+static int uid;
+static int gid;
+static time_t mtime;
/*
* Static data associated with the tar file.
* message is required on errors.
*/
if (tostdoutFlag == FALSE) {
- if (outFd >= 0)
- (void) close (outFd);
+ if (outFd >= 0) {
+ close (outFd);
+ }
}
}
static void
readHeader (const TarHeader * hp, int fileCount, char **fileTable)
{
- int mode;
- int uid;
- int gid;
int checkSum;
- int major;
- int minor;
- long size;
- time_t mtime;
- const char *name;
int cc;
int hardLink;
int softLink;
int devFileFlag;
+ unsigned int major;
+ unsigned int minor;
+ long size;
+ struct utimbuf utb;
/*
* If the block is completely empty, then this is the end of the
* archive file. If the name is null, then just skip this header.
*/
- name = hp->name;
+ outName = hp->name;
- if (*name == '\0') {
+ if (*outName == '\0') {
for (cc = TAR_BLOCK_SIZE; cc > 0; cc--) {
- if (*name++)
+ if (*outName++)
return;
}
/*
* Check for a directory.
*/
- if (name[strlen (name) - 1] == '/')
+ if (outName[strlen (outName) - 1] == '/')
mode |= S_IFDIR;
/*
* Check for absolute paths in the file.
* If we find any, then warn the user and make them relative.
*/
- if (*name == '/') {
- while (*name == '/')
- name++;
+ if (*outName == '/') {
+ while (*outName == '/')
+ outName++;
if (warnedRoot==FALSE) {
fprintf (stderr,
* See if we want this file to be restored.
* If not, then set up to skip it.
*/
- if (wantFileName (name, fileCount, fileTable) == FALSE) {
+ if (wantFileName (outName, fileCount, fileTable) == FALSE) {
if ( !hardLink && !softLink && (S_ISREG (mode) || S_ISCHR (mode)
|| S_ISBLK (mode) || S_ISSOCK(mode) || S_ISFIFO(mode) ) ) {
inHeader = (size == 0)? TRUE : FALSE;
*/
if (extractFlag==FALSE) {
if (verboseFlag==TRUE) {
- printf ("%s %3d/%-d %9ld %s %s", modeString (mode),
- uid, gid, size, timeString (mtime), name);
- } else
- printf ("%s", name);
+ printf ("%s %3d/%-d ", modeString (mode), uid, gid);
+ if( S_ISCHR (mode) || S_ISBLK (mode) )
+ printf ("%4d,%4d %s ", major,minor, timeString (mtime));
+ else
+ printf ("%9ld %s ", size, timeString (mtime));
+ }
+ printf ("%s", outName);
if (hardLink)
printf (" (link to \"%s\")", hp->linkName);
* We really want to extract the file.
*/
if (verboseFlag==TRUE)
- printf ("x %s\n", name);
+ printf ("x %s\n", outName);
if (hardLink) {
- if (link (hp->linkName, name) < 0)
- perror (name);
-
+ if (link (hp->linkName, outName) < 0)
+ perror (outName);
+ /* Set the file time */
+ utb.actime = mtime;
+ utb.modtime = mtime;
+ utime (outName, &utb);
+ /* Set the file permissions */
+ chown(outName, uid, gid);
+ chmod(outName, mode);
return;
}
if (softLink) {
#ifdef S_ISLNK
- if (symlink (hp->linkName, name) < 0)
- perror (name);
+ if (symlink (hp->linkName, outName) < 0)
+ perror (outName);
+ /* Try to change ownership of the symlink.
+ * If libs doesn't support that, don't bother.
+ * Changing the pointed-to file is the Wrong Thing(tm).
+ */
+#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
+ lchown(outName, uid, gid);
+#endif
+
+ /* Do not change permissions or date on symlink,
+ * since it changes the pointed to file instead. duh. */
#else
fprintf (stderr, "Cannot create symbolic links\n");
#endif
return;
}
+ /* Set the umask for this process so it doesn't
+ * screw things up. */
+ umask(0);
+
/*
* If the file is a directory, then just create the path.
*/
if (S_ISDIR (mode)) {
- createPath (name, mode);
-
+ createPath (outName, mode);
+ /* Set the file time */
+ utb.actime = mtime;
+ utb.modtime = mtime;
+ utime (outName, &utb);
+ /* Set the file permissions */
+ chown(outName, uid, gid);
+ chmod(outName, mode);
return;
}
/*
* There is a file to write.
- * First create the path to it if necessary with a default permission.
+ * First create the path to it if necessary with default permissions.
*/
- createPath (name, 0777);
+ createPath (outName, 0777);
inHeader = (size == 0)? TRUE : FALSE;
dataCc = size;
else {
if ( S_ISCHR(mode) || S_ISBLK(mode) || S_ISSOCK(mode) ) {
devFileFlag = TRUE;
- outFd = mknod (name, mode, makedev(major, minor) );
+ outFd = mknod (outName, mode, makedev(major, minor) );
}
else if (S_ISFIFO(mode) ) {
devFileFlag = TRUE;
- outFd = mkfifo(name, mode);
+ outFd = mkfifo(outName, mode);
} else {
- outFd = open (name, O_WRONLY | O_CREAT | O_TRUNC, mode);
+ outFd = open (outName, O_WRONLY | O_CREAT | O_TRUNC, mode);
}
+ if (outFd < 0) {
+ perror (outName);
+ skipFileFlag = TRUE;
+ return;
+ }
+ /* Set the file time */
+ utb.actime = mtime;
+ utb.modtime = mtime;
+ utime (outName, &utb);
+ /* Set the file permissions */
+ chown(outName, uid, gid);
+ chmod(outName, mode);
}
- if (outFd < 0) {
- perror (name);
- skipFileFlag = TRUE;
- return;
- }
/*
* If the file is empty, then that's all we need to do.
*/
if (size == 0 && (tostdoutFlag == FALSE) && (devFileFlag == FALSE)) {
- (void) close (outFd);
+ close (outFd);
outFd = -1;
}
}
if (fullWrite (outFd, cp, count) < 0) {
perror (outName);
if (tostdoutFlag == FALSE) {
- (void) close (outFd);
+ close (outFd);
outFd = -1;
}
skipFileFlag = TRUE;
}
/*
- * If the write failed, close the file and disable further
- * writes to this file.
+ * Check if we are done writing to the file now.
*/
if (dataCc <= 0 && tostdoutFlag == FALSE) {
+ struct utimbuf utb;
if (close (outFd))
perror (outName);
+ /* Set the file time */
+ utb.actime = mtime;
+ utb.modtime = mtime;
+ utime (outName, &utb);
+ /* Set the file permissions */
+ chown(outName, uid, gid);
+ chmod(outName, mode);
+
outFd = -1;
}
}
tarDev = statbuf.st_dev;
tarInode = statbuf.st_ino;
-
+
/*
* Append each file name into the archive file.
* Follow symbolic links for these top level file names.
static void saveFile (const char *fileName, int seeLinks)
{
int status;
- int mode;
struct stat statbuf;
if (verboseFlag==TRUE)
projects / oweals / busybox.git / blobdiff