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Bunches of fixes. Typos, bugs, etc.

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Added 'gunzip -t'.  inittab support _almost_ works (but it isn't
ready for prime time useage yet).
 -Erik
This commit is contained in:
Erik Andersen
2000-01-04 01:10:25 +00:00
parent 9c88cac5cb
commit 7dc160721e
20 changed files with 781 additions and 578 deletions
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121
archival/tar.c
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@@ -37,6 +37,7 @@
#include <fcntl.h>
#include <signal.h>
#include <time.h>
#include <utime.h>
#include <sys/types.h>
#include <sys/sysmacros.h>
@@ -106,8 +107,12 @@ static int warnedRoot;
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.
@@ -364,8 +369,9 @@ static void readTarFile (int fileCount, char **fileTable)
* message is required on errors.
*/
if (tostdoutFlag == FALSE) {
if (outFd >= 0)
(void) close (outFd);
if (outFd >= 0) {
close (outFd);
}
}
}
@@ -378,29 +384,25 @@ static void readTarFile (int fileCount, char **fileTable)
static void
readHeader (const TarHeader * hp, int fileCount, char **fileTable)
{
int mode;
int uid;
int gid;
int checkSum;
unsigned int major;
unsigned 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;
}
@@ -447,16 +449,16 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
/*
* 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,
@@ -470,7 +472,7 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
* 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;
@@ -494,7 +496,7 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
else
printf ("%9ld %s ", size, timeString (mtime));
}
printf ("%s", name);
printf ("%s", outName);
if (hardLink)
printf (" (link to \"%s\")", hp->linkName);
@@ -515,22 +517,35 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
* 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);
chown(name, uid, gid);
chmod(name, mode);
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);
chown(name, uid, gid);
chmod(name, mode);
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
@@ -545,10 +560,14 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
* If the file is a directory, then just create the path.
*/
if (S_ISDIR (mode)) {
createPath (name, mode);
chown(name, uid, gid);
chmod(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;
}
@@ -556,7 +575,7 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
* There is a file to write.
* First create the path to it if necessary with default permissions.
*/
createPath (name, 0777);
createPath (outName, 0777);
inHeader = (size == 0)? TRUE : FALSE;
dataCc = size;
@@ -569,21 +588,26 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
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 (name);
perror (outName);
skipFileFlag = TRUE;
return;
}
chown(name, uid, gid);
chmod(name, 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);
}
@@ -591,7 +615,7 @@ readHeader (const TarHeader * hp, int fileCount, char **fileTable)
* 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;
}
}
@@ -625,7 +649,7 @@ static void readData (const char *cp, int count)
if (fullWrite (outFd, cp, count) < 0) {
perror (outName);
if (tostdoutFlag == FALSE) {
(void) close (outFd);
close (outFd);
outFd = -1;
}
skipFileFlag = TRUE;
@@ -633,13 +657,21 @@ static void readData (const char *cp, int count)
}
/*
* 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;
}
}
@@ -720,7 +752,6 @@ static void writeTarFile (int fileCount, char **fileTable)
static void saveFile (const char *fileName, int seeLinks)
{
int status;
int mode;
struct stat statbuf;
if (verboseFlag==TRUE)