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Run ldconfig inside chroot.

Browse Source 
This fixes FS#15294.

The code to run a command inside a chroot was refactored from the
_alpm_runscriptlet function to _alpm_run_chroot.

Signed-off-by: Xavier Chantry <shiningxc@gmail.com>
This commit is contained in:
Xavier Chantry 2009-07-08 11:08:32 +02:00 committed by Dan McGee
parent 41a55d4eff
commit 2e043aae36
5 changed files with 102 additions and 92 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lib/libalpm/add.c
View File

@ -888,7 +888,6 @@ int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
}
/* run ldconfig if it exists */
_alpm_log(PM_LOG_DEBUG, "running \"ldconfig -r %s\"\n", handle->root);
_alpm_ldconfig(handle->root);
return(0);

1
lib/libalpm/remove.c
View File

@ -404,7 +404,6 @@ int _alpm_remove_commit(pmtrans_t *trans, pmdb_t *db)
/* run ldconfig if it exists */
if(trans->type != PM_TRANS_TYPE_REMOVEUPGRADE) {
_alpm_log(PM_LOG_DEBUG, "running \"ldconfig -r %s\"\n", handle->root);
_alpm_ldconfig(handle->root);
}

88
lib/libalpm/trans.c
View File

@ -27,7 +27,6 @@
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
@ -437,11 +436,8 @@ int _alpm_runscriptlet(const char *root, const char *installfn,
char scriptfn[PATH_MAX];
char cmdline[PATH_MAX];
char tmpdir[PATH_MAX];
char cwd[PATH_MAX];
char *scriptpath;
pid_t pid;
int clean_tmpdir = 0;
int restore_cwd = 0;
int retval = 0;
ALPM_LOG_FUNC;
@ -489,21 +485,6 @@ int _alpm_runscriptlet(const char *root, const char *installfn,
goto cleanup;
}
/* 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"));
} else {
restore_cwd = 1;
}
/* just in case our cwd was removed in the upgrade operation */
if(chdir(root) != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change directory to %s (%s)\n"), root, strerror(errno));
goto cleanup;
}
_alpm_log(PM_LOG_DEBUG, "executing %s script...\n", script);
if(oldver) {
snprintf(cmdline, PATH_MAX, ". %s; %s %s %s",
scriptpath, script, ver, oldver);
@ -511,80 +492,13 @@ int _alpm_runscriptlet(const char *root, const char *installfn,
snprintf(cmdline, PATH_MAX, ". %s; %s %s",
scriptpath, script, ver);
}
_alpm_log(PM_LOG_DEBUG, "%s\n", cmdline);
/* Flush open fds before fork() to avoid cloning buffers */
fflush(NULL);
/* fork- parent and child each have seperate code blocks below */
pid = fork();
if(pid == -1) {
_alpm_log(PM_LOG_ERROR, _("could not fork a new process (%s)\n"), strerror(errno));
retval = 1;
goto cleanup;
}
if(pid == 0) {
FILE *pipe;
/* this code runs for the child only (the actual chroot/exec) */
_alpm_log(PM_LOG_DEBUG, "chrooting in %s\n", root);
if(chroot(root) != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change the root directory (%s)\n"),
strerror(errno));
exit(1);
}
if(chdir("/") != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change directory to / (%s)\n"),
strerror(errno));
exit(1);
}
umask(0022);
_alpm_log(PM_LOG_DEBUG, "executing \"%s\"\n", cmdline);
/* execl("/bin/sh", "sh", "-c", cmdline, (char *)NULL); */
pipe = popen(cmdline, "r");
if(!pipe) {
_alpm_log(PM_LOG_ERROR, _("call to popen failed (%s)"),
strerror(errno));
exit(1);
}
while(!feof(pipe)) {
char line[PATH_MAX];
if(fgets(line, PATH_MAX, pipe) == NULL)
break;
alpm_logaction("%s", line);
EVENT(trans, PM_TRANS_EVT_SCRIPTLET_INFO, line, NULL);
}
retval = pclose(pipe);
exit(WEXITSTATUS(retval));
} else {
/* this code runs for the parent only (wait on the child) */
pid_t retpid;
int status;
while((retpid = waitpid(pid, &status, 0)) == -1 && errno == EINTR);
if(retpid == -1) {
_alpm_log(PM_LOG_ERROR, _("call to waitpid failed (%s)\n"),
strerror(errno));
retval = 1;
goto cleanup;
} else {
/* check the return status, make sure it is 0 (success) */
if(WIFEXITED(status)) {
_alpm_log(PM_LOG_DEBUG, "call to waitpid succeeded\n");
if(WEXITSTATUS(status) != 0) {
_alpm_log(PM_LOG_ERROR, _("scriptlet failed to execute correctly\n"));
retval = 1;
}
}
}
}
retval = _alpm_run_chroot(root, cmdline);
cleanup:
if(clean_tmpdir && _alpm_rmrf(tmpdir)) {
_alpm_log(PM_LOG_WARNING, _("could not remove tmpdir %s\n"), tmpdir);
}
if(restore_cwd) {
chdir(cwd);
}
return(retval);
}

103
lib/libalpm/util.c
View File

@ -37,6 +37,7 @@
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
/* libarchive */
#include <archive.h>
@ -49,6 +50,7 @@
#include "alpm.h"
#include "alpm_list.h"
#include "md5.h"
#include "handle.h"
#ifndef HAVE_STRSEP
/* This is a replacement for strsep which is not portable (missing on Solaris).
@ -455,17 +457,112 @@ int _alpm_logaction(unsigned short usesyslog, FILE *f,
return(ret);
}
int _alpm_run_chroot(const char *root, const char *cmd)
{
char cwd[PATH_MAX];
pid_t pid;
int restore_cwd = 0;
int retval = 0;
ALPM_LOG_FUNC;
/* 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"));
} else {
restore_cwd = 1;
}
/* just in case our cwd was removed in the upgrade operation */
if(chdir(root) != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change directory to %s (%s)\n"), root, strerror(errno));
goto cleanup;
}
_alpm_log(PM_LOG_DEBUG, "executing \"%s\" under chroot \"%s\"\n", cmd, root);
/* Flush open fds before fork() to avoid cloning buffers */
fflush(NULL);
/* fork- parent and child each have seperate code blocks below */
pid = fork();
if(pid == -1) {
_alpm_log(PM_LOG_ERROR, _("could not fork a new process (%s)\n"), strerror(errno));
retval = 1;
goto cleanup;
}
if(pid == 0) {
FILE *pipe;
/* this code runs for the child only (the actual chroot/exec) */
_alpm_log(PM_LOG_DEBUG, "chrooting in %s\n", root);
if(chroot(root) != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change the root directory (%s)\n"),
strerror(errno));
exit(1);
}
if(chdir("/") != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change directory to / (%s)\n"),
strerror(errno));
exit(1);
}
umask(0022);
pipe = popen(cmd, "r");
if(!pipe) {
_alpm_log(PM_LOG_ERROR, _("call to popen failed (%s)"),
strerror(errno));
exit(1);
}
while(!feof(pipe)) {
char line[PATH_MAX];
if(fgets(line, PATH_MAX, pipe) == NULL)
break;
alpm_logaction("%s", line);
EVENT(handle->trans, PM_TRANS_EVT_SCRIPTLET_INFO, line, NULL);
}
retval = pclose(pipe);
exit(WEXITSTATUS(retval));
} else {
/* this code runs for the parent only (wait on the child) */
pid_t retpid;
int status;
while((retpid = waitpid(pid, &status, 0)) == -1 && errno == EINTR);
if(retpid == -1) {
_alpm_log(PM_LOG_ERROR, _("call to waitpid failed (%s)\n"),
strerror(errno));
retval = 1;
goto cleanup;
} else {
/* check the return status, make sure it is 0 (success) */
if(WIFEXITED(status)) {
_alpm_log(PM_LOG_DEBUG, "call to waitpid succeeded\n");
if(WEXITSTATUS(status) != 0) {
_alpm_log(PM_LOG_ERROR, _("command failed to execute correctly\n"));
retval = 1;
}
}
}
}
cleanup:
if(restore_cwd) {
chdir(cwd);
}
return(retval);
}
int _alpm_ldconfig(const char *root)
{
char line[PATH_MAX];
_alpm_log(PM_LOG_DEBUG, "running ldconfig\n");
snprintf(line, PATH_MAX, "%setc/ld.so.conf", root);
if(access(line, F_OK) == 0) {
snprintf(line, PATH_MAX, "%ssbin/ldconfig", root);
if(access(line, X_OK) == 0) {
char cmd[PATH_MAX];
snprintf(cmd, PATH_MAX, "%s -r %s", line, root);
system(cmd);
_alpm_run_chroot(root, "ldconfig");
}
}

1
lib/libalpm/util.h
View File

@ -66,6 +66,7 @@ int _alpm_lckrm();
int _alpm_unpack(const char *archive, const char *prefix, const char *fn);
int _alpm_rmrf(const char *path);
int _alpm_logaction(unsigned short usesyslog, FILE *f, const char *fmt, va_list args);
int _alpm_run_chroot(const char *root, const char *cmd);
int _alpm_ldconfig(const char *root);
int _alpm_str_cmp(const void *s1, const void *s2);
char *_alpm_filecache_find(const char *filename);