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libalpm/trans.c : fix a recently introduced breakage in scriptlets handling. 

Commit 4853a4aad9 used the tmpdir variable
for checking the existence of /bin/sh, without resetting it.

This caused /bin/sh to be deleted during the cleanup part, as soon as a scriptlet
other than pre_upgrade or pre_install was executed.
For example, on the first post_upgrade during a -Su.

I introduced two variables : clean_tmpdir and restore_cwd, for deciding what should
be done in the cleanup part.

Signed-off-by: Chantry Xavier <shiningxc@gmail.com>
This commit is contained in:
Chantry Xavier 2007-10-14 10:17:48 +02:00 committed by Dan McGee
parent 4e6a03c4f6
commit 3d7e06f204
1 changed files with 10 additions and 6 deletions
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16
lib/libalpm/trans.c
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@ -537,11 +537,13 @@ int _alpm_runscriptlet(const char *root, const char *installfn,
{
char scriptfn[PATH_MAX];
char cmdline[PATH_MAX];
char tmpdir[PATH_MAX] = "";
char tmpdir[PATH_MAX];
char cwd[PATH_MAX];
char *scriptpath;
struct stat buf;
char cwd[PATH_MAX] = "";
pid_t pid;
int clean_tmpdir = 0;
int restore_cwd = 0;
int retval = 0;
ALPM_LOG_FUNC;
@ -568,6 +570,8 @@ int _alpm_runscriptlet(const char *root, const char *installfn,
if(mkdtemp(tmpdir) == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not create temp directory\n"));
return(1);
} else {
clean_tmpdir = 1;
}
/* either extract or copy the scriptlet */
@ -593,8 +597,8 @@ int _alpm_runscriptlet(const char *root, const char *installfn,
/* save the cwd so we can restore it later */
if(getcwd(cwd, PATH_MAX) == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not get current working directory\n"));
/* in case of error, cwd content is undefined: so we set it to something */
cwd[0] = 0;
} else {
restore_cwd = 1;
}
/* just in case our cwd was removed in the upgrade operation */
@ -662,10 +666,10 @@ int _alpm_runscriptlet(const char *root, const char *installfn,
}
cleanup:
if(strlen(tmpdir) && _alpm_rmrf(tmpdir)) {
if(clean_tmpdir && _alpm_rmrf(tmpdir)) {
_alpm_log(PM_LOG_WARNING, _("could not remove tmpdir %s\n"), tmpdir);
}
if(strlen(cwd)) {
if(restore_cwd) {
chdir(cwd);
}