diff options
Diffstat (limited to 'lib/libalpm/util.c')
| -rw-r--r-- | lib/libalpm/util.c | 40 |
1 files changed, 24 insertions, 16 deletions
diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c index f4fecabb..e2f2f441 100644 --- a/lib/libalpm/util.c +++ b/lib/libalpm/util.c @@ -31,6 +31,7 @@ #include <unistd.h> #include <ctype.h> #include <dirent.h> +#include <fcntl.h> #include <time.h> #include <syslog.h> #include <errno.h> @@ -277,8 +278,7 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix, mode_t oldmask; struct archive *_archive; struct archive_entry *entry; - char cwd[PATH_MAX]; - int restore_cwd = 0; + int cwdfd; if((_archive = archive_read_new()) == NULL) { RET_ERR(handle, ALPM_ERR_LIBARCHIVE, 1); @@ -297,10 +297,11 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix, oldmask = umask(0022); /* save the cwd so we can restore it later */ - if(getcwd(cwd, PATH_MAX) == NULL) { + do { + cwdfd = open(".", O_RDONLY); + } while(cwdfd == -1 && errno == EINTR); + if(cwdfd < 0) { _alpm_log(handle, ALPM_LOG_ERROR, _("could not get current working directory\n")); - } else { - restore_cwd = 1; } /* just in case our cwd was removed in the upgrade operation */ @@ -365,10 +366,14 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix, cleanup: umask(oldmask); archive_read_finish(_archive); - if(restore_cwd && chdir(cwd) != 0) { - _alpm_log(handle, ALPM_LOG_ERROR, _("could not change directory to %s (%s)\n"), - cwd, strerror(errno)); + if(cwdfd >= 0) { + if(fchdir(cwdfd) != 0) { + _alpm_log(handle, ALPM_LOG_ERROR, + _("could not restore working directory (%s)\n"), strerror(errno)); + } + close(cwdfd); } + return ret; } @@ -490,17 +495,16 @@ int _alpm_logaction(alpm_handle_t *handle, const char *fmt, va_list args) int _alpm_run_chroot(alpm_handle_t *handle, const char *path, char *const argv[]) { - char cwd[PATH_MAX]; pid_t pid; - int pipefd[2]; - int restore_cwd = 0; + int pipefd[2], cwdfd; int retval = 0; /* save the cwd so we can restore it later */ - if(getcwd(cwd, PATH_MAX) == NULL) { + do { + cwdfd = open(".", O_RDONLY); + } while(cwdfd == -1 && errno == EINTR); + if(cwdfd < 0) { _alpm_log(handle, ALPM_LOG_ERROR, _("could not get current working directory\n")); - } else { - restore_cwd = 1; } /* just in case our cwd was removed in the upgrade operation */ @@ -598,8 +602,12 @@ int _alpm_run_chroot(alpm_handle_t *handle, const char *path, char *const argv[] } cleanup: - if(restore_cwd && chdir(cwd) != 0) { - _alpm_log(handle, ALPM_LOG_ERROR, _("could not change directory to %s (%s)\n"), cwd, strerror(errno)); + if(cwdfd >= 0) { + if(fchdir(cwdfd) != 0) { + _alpm_log(handle, ALPM_LOG_ERROR, + _("could not restore working directory (%s)\n"), strerror(errno)); + } + close(cwdfd); } return retval; |