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BUG: Handle mkdirhier properly since it may modify the string

This commit is contained in:
Andy Cedilnik 2005-12-30 15:46:21 -05:00
parent 00371678d3
commit f30b28a342
1 changed files with 48 additions and 7 deletions
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55
Utilities/cmtar/extract.c
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@ -213,10 +213,11 @@ tar_extract_regfile(TAR *t, char *realname)
uid = th_get_uid(t);
gid = th_get_gid(t);
/* Make a copy of the string because dirname and mkdirhier may modify the
* string */
strncpy(buf, filename, sizeof(buf)-1);
buf[sizeof(buf)-1] = 0;
if (mkdirhier(dirname(buf)) == -1)
{
return -1;
@ -331,6 +332,7 @@ tar_extract_hardlink(TAR * t, char *realname)
char *linktgt = NULL;
linkname_t *lnp;
libtar_hashptr_t hp;
char buf[T_BLOCKSIZE];
if (!TH_ISLNK(t))
{
@ -339,7 +341,13 @@ tar_extract_hardlink(TAR * t, char *realname)
}
filename = (realname ? realname : th_get_pathname(t));
if (mkdirhier(dirname(filename)) == -1)
/* Make a copy of the string because dirname and mkdirhier may modify the
* string */
strncpy(buf, filename, sizeof(buf)-1);
buf[sizeof(buf)-1] = 0;
if (mkdirhier(dirname(buf)) == -1)
return -1;
libtar_hashptr_reset(&hp);
if (libtar_hash_getkey(t->h, &hp, th_get_linkname(t),
@ -375,6 +383,7 @@ int
tar_extract_symlink(TAR *t, char *realname)
{
char *filename;
char buf[T_BLOCKSIZE];
#ifndef _WIN32
if (!TH_ISSYM(t))
@ -385,11 +394,19 @@ tar_extract_symlink(TAR *t, char *realname)
#endif
filename = (realname ? realname : th_get_pathname(t));
if (mkdirhier(dirname(filename)) == -1)
/* Make a copy of the string because dirname and mkdirhier may modify the
* string */
strncpy(buf, filename, sizeof(buf)-1);
buf[sizeof(buf)-1] = 0;
if (mkdirhier(dirname(buf)) == -1)
return -1;
if (unlink(filename) == -1 && errno != ENOENT)
{
return -1;
}
#ifdef DEBUG
printf(" ==> extracting: %s (symlink to %s)\n",
@ -416,6 +433,7 @@ tar_extract_chardev(TAR *t, char *realname)
mode_t mode;
unsigned long devmaj, devmin;
char *filename;
char buf[T_BLOCKSIZE];
#ifndef _WIN32
if (!TH_ISCHR(t))
@ -429,7 +447,12 @@ tar_extract_chardev(TAR *t, char *realname)
devmaj = th_get_devmajor(t);
devmin = th_get_devminor(t);
if (mkdirhier(dirname(filename)) == -1)
/* Make a copy of the string because dirname and mkdirhier may modify the
* string */
strncpy(buf, filename, sizeof(buf)-1);
buf[sizeof(buf)-1] = 0;
if (mkdirhier(dirname(buf)) == -1)
return -1;
#ifdef DEBUG
@ -462,6 +485,7 @@ tar_extract_blockdev(TAR *t, char *realname)
mode_t mode;
unsigned long devmaj, devmin;
char *filename;
char buf[T_BLOCKSIZE];
if (!TH_ISBLK(t))
{
@ -474,7 +498,12 @@ tar_extract_blockdev(TAR *t, char *realname)
devmaj = th_get_devmajor(t);
devmin = th_get_devminor(t);
if (mkdirhier(dirname(filename)) == -1)
/* Make a copy of the string because dirname and mkdirhier may modify the
* string */
strncpy(buf, filename, sizeof(buf)-1);
buf[sizeof(buf)-1] = 0;
if (mkdirhier(dirname(buf)) == -1)
return -1;
#ifdef DEBUG
@ -506,6 +535,7 @@ tar_extract_dir(TAR *t, char *realname)
{
mode_t mode;
char *filename;
char buf[T_BLOCKSIZE];
if (!TH_ISDIR(t))
{
@ -516,7 +546,12 @@ tar_extract_dir(TAR *t, char *realname)
filename = (realname ? realname : th_get_pathname(t));
mode = th_get_mode(t);
if (mkdirhier(dirname(filename)) == -1)
/* Make a copy of the string because dirname and mkdirhier may modify the
* string */
strncpy(buf, filename, sizeof(buf)-1);
buf[sizeof(buf)-1] = 0;
if (mkdirhier(dirname(buf)) == -1)
return -1;
#ifdef DEBUG
@ -565,6 +600,7 @@ tar_extract_fifo(TAR *t, char *realname)
{
mode_t mode;
char *filename;
char buf[T_BLOCKSIZE];
if (!TH_ISFIFO(t))
{
@ -575,7 +611,12 @@ tar_extract_fifo(TAR *t, char *realname)
filename = (realname ? realname : th_get_pathname(t));
mode = th_get_mode(t);
if (mkdirhier(dirname(filename)) == -1)
/* Make a copy of the string because dirname and mkdirhier may modify the
* string */
strncpy(buf, filename, sizeof(buf)-1);
buf[sizeof(buf)-1] = 0;
if (mkdirhier(dirname(buf)) == -1)
return -1;
#ifdef DEBUG