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libalpm util.c and util.h cleanup 

* Remove some unnecessary conditional compiling in util.h- move the
  functions tha required it to trans.c (along with a bunch of new header
  includes).
* Clean up util.h a bit- remove some header includes, remove universal
  libarchive include and only put it in the files that need it.

Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Dan McGee 2007-04-29 12:47:02 -04:00
parent a58e17a1d7
commit 8bbb5dd078
7 changed files with 292 additions and 290 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
lib/libalpm/add.c
View File

@ -39,6 +39,10 @@
#include <string.h>
#include <limits.h>
/* libarchive */
#include <archive.h>
#include <archive_entry.h>
/* libalpm */
#include "add.h"
#include "alpm_list.h"
@ -280,6 +284,7 @@ int _alpm_add_prepare(pmtrans_t *trans, pmdb_t *db, alpm_list_t **data)
return(0);
}
/* TODO clean up this monster 554 line function */
int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
{
int i, ret = 0, errors = 0, pkg_count = 0;
@ -287,6 +292,9 @@ int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
struct archive_entry *entry;
char cwd[PATH_MAX] = "";
alpm_list_t *targ, *lp;
const int archive_flags = ARCHIVE_EXTRACT_OWNER |
ARCHIVE_EXTRACT_PERM |
ARCHIVE_EXTRACT_TIME;
ALPM_LOG_FUNC;
@ -536,9 +544,11 @@ int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
archive_entry_set_pathname(entry, tempfile);
if(archive_read_extract(archive, entry, ARCHIVE_EXTRACT_FLAGS) != ARCHIVE_OK) {
_alpm_log(PM_LOG_ERROR, _("could not extract %s (%s)"), entryname, strerror(errno));
alpm_logaction(_("could not extract %s (%s)"), entryname, strerror(errno));
if(archive_read_extract(archive, entry, archive_flags) != ARCHIVE_OK) {
_alpm_log(PM_LOG_ERROR, _("could not extract %s (%s)"),
entryname, strerror(errno));
alpm_logaction(_("could not extract %s (%s)"),
entryname, strerror(errno));
errors++;
unlink(tempfile);
FREE(hash_orig);
@ -686,7 +696,7 @@ int _alpm_add_commit(pmtrans_t *trans, pmdb_t *db)
archive_entry_set_pathname(entry, filename);
if(archive_read_extract(archive, entry, ARCHIVE_EXTRACT_FLAGS) != ARCHIVE_OK) {
if(archive_read_extract(archive, entry, archive_flags) != ARCHIVE_OK) {
_alpm_log(PM_LOG_ERROR, _("could not extract %s (%s)"), filename, strerror(errno));
alpm_logaction(_("error: could not extract %s (%s)"), filename, strerror(errno));
errors++;

4
lib/libalpm/package.c
View File

@ -34,6 +34,10 @@
#include <sys/stat.h>
#include <unistd.h>
/* libarchive */
#include <archive.h>
#include <archive_entry.h>
/* libalpm */
#include "package.h"
#include "alpm_list.h"

4
lib/libalpm/sync.c
View File

@ -28,10 +28,8 @@
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#ifdef CYGWIN
#include <limits.h> /* PATH_MAX */
#endif
#include <dirent.h>
/* libalpm */

258
lib/libalpm/trans.c
View File

@ -27,6 +27,15 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <unistd.h>
#include <errno.h>
#ifndef __sun__
#include <mntent.h>
#endif
/* libalpm */
#include "trans.h"
@ -364,8 +373,253 @@ int _alpm_trans_update_depends(pmtrans_t *trans, pmpkg_t *pkg)
return(0);
}
/* A cheap grep for text files, returns 1 if a substring
* was found in the text file fn, 0 if it wasn't
*/
static int grep(const char *fn, const char *needle)
{
FILE *fp;
pmtranstype_t alpm_trans_get_type()
if((fp = fopen(fn, "r")) == NULL) {
return(0);
}
while(!feof(fp)) {
char line[1024];
fgets(line, 1024, fp);
if(feof(fp)) {
continue;
}
if(strstr(line, needle)) {
fclose(fp);
return(1);
}
}
fclose(fp);
return(0);
}
int _alpm_runscriptlet(const char *root, const char *installfn,
const char *script, const char *ver,
const char *oldver, pmtrans_t *trans)
{
char scriptfn[PATH_MAX];
char cmdline[PATH_MAX];
char tmpdir[PATH_MAX] = "";
char *scriptpath;
struct stat buf;
char cwd[PATH_MAX] = "";
pid_t pid;
int retval = 0;
ALPM_LOG_FUNC;
if(stat(installfn, &buf)) {
/* not found */
_alpm_log(PM_LOG_DEBUG, "scriptlet '%s' not found", installfn);
return(0);
}
if(!strcmp(script, "pre_upgrade") || !strcmp(script, "pre_install")) {
snprintf(tmpdir, PATH_MAX, "%stmp/", root);
if(stat(tmpdir, &buf)) {
_alpm_makepath(tmpdir);
}
snprintf(tmpdir, PATH_MAX, "%stmp/alpm_XXXXXX", root);
if(mkdtemp(tmpdir) == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not create temp directory"));
return(1);
}
_alpm_unpack(installfn, tmpdir, ".INSTALL");
snprintf(scriptfn, PATH_MAX, "%s/.INSTALL", tmpdir);
/* chop off the root so we can find the tmpdir in the chroot */
scriptpath = scriptfn + strlen(root) - 1;
} else {
strncpy(scriptfn, installfn, PATH_MAX);
/* chop off the root so we can find the tmpdir in the chroot */
scriptpath = scriptfn + strlen(root) - 1;
}
if(!grep(scriptfn, script)) {
/* script not found in scriptlet file */
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"));
/* in case of error, cwd content is undefined: so we set it to something */
cwd[0] = 0;
}
/* 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)"), root, strerror(errno));
goto cleanup;
}
_alpm_log(PM_LOG_DEBUG, _("executing %s script..."), script);
if(oldver) {
snprintf(cmdline, PATH_MAX, "source %s %s %s %s",
scriptpath, script, ver, oldver);
} else {
snprintf(cmdline, PATH_MAX, "source %s %s %s",
scriptpath, script, ver);
}
_alpm_log(PM_LOG_DEBUG, "%s", cmdline);
pid = fork();
if(pid == -1) {
_alpm_log(PM_LOG_ERROR, _("could not fork a new process (%s)"), strerror(errno));
retval = 1;
goto cleanup;
}
if(pid == 0) {
FILE *pp;
_alpm_log(PM_LOG_DEBUG, _("chrooting in %s"), root);
if(chroot(root) != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change the root directory (%s)"), strerror(errno));
return(1);
}
if(chdir("/") != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change directory to / (%s)"), strerror(errno));
return(1);
}
umask(0022);
_alpm_log(PM_LOG_DEBUG, _("executing \"%s\""), cmdline);
pp = popen(cmdline, "r");
if(!pp) {
_alpm_log(PM_LOG_ERROR, _("call to popen failed (%s)"), strerror(errno));
retval = 1;
goto cleanup;
}
while(!feof(pp)) {
char line[1024];
if(fgets(line, 1024, pp) == NULL)
break;
/*TODO clean this code up, remove weird SCRIPTLET_START/DONE,
* (void*)atol call, etc. */
/* "START <event desc>" */
if((strlen(line) > strlen(SCRIPTLET_START))
&& !strncmp(line, SCRIPTLET_START, strlen(SCRIPTLET_START))) {
EVENT(trans, PM_TRANS_EVT_SCRIPTLET_START,
_alpm_strtrim(line + strlen(SCRIPTLET_START)), NULL);
/* "DONE <ret code>" */
} else if((strlen(line) > strlen(SCRIPTLET_DONE))
&& !strncmp(line, SCRIPTLET_DONE, strlen(SCRIPTLET_DONE))) {
EVENT(trans, PM_TRANS_EVT_SCRIPTLET_DONE,
(void*)atol(_alpm_strtrim(line + strlen(SCRIPTLET_DONE))),
NULL);
} else {
_alpm_strtrim(line);
/* log our script output */
alpm_logaction(line);
EVENT(trans, PM_TRANS_EVT_SCRIPTLET_INFO, line, NULL);
}
}
pclose(pp);
exit(0);
} else {
if(waitpid(pid, 0, 0) == -1) {
_alpm_log(PM_LOG_ERROR, _("call to waitpid failed (%s)"),
strerror(errno));
retval = 1;
goto cleanup;
}
}
cleanup:
if(strlen(tmpdir) && _alpm_rmrf(tmpdir)) {
_alpm_log(PM_LOG_WARNING, _("could not remove tmpdir %s"), tmpdir);
}
if(strlen(cwd)) {
chdir(cwd);
}
return(retval);
}
#ifndef __sun__
static long long get_freespace()
{
struct mntent *mnt;
const char *table = MOUNTED;
FILE *fp;
long long ret=0;
if((fp = setmntent(table, "r")) == NULL) {
_alpm_log(PM_LOG_ERROR, _("cannot read disk space information from %s: %s"),
table, strerror(errno));
return(-1);
}
while ((mnt = getmntent(fp)))
{
struct statvfs64 buf;
statvfs64(mnt->mnt_dir, &buf);
ret += buf.f_bavail * buf.f_bsize;
}
endmntent(fp);
return(ret);
}
int _alpm_check_freespace(pmtrans_t *trans, alpm_list_t **data)
{
alpm_list_t *i;
long long pkgsize=0, freespace;
ALPM_LOG_FUNC;
for(i = trans->packages; i; i = i->next) {
if(trans->type == PM_TRANS_TYPE_SYNC)
{
pmsyncpkg_t *sync = i->data;
if(sync->type != PM_SYNC_TYPE_REPLACE) {
pmpkg_t *pkg = sync->pkg;
pkgsize += alpm_pkg_get_isize(pkg);
}
}
else
{
pmpkg_t *pkg = i->data;
pkgsize += alpm_pkg_get_size(pkg);
}
}
freespace = get_freespace();
_alpm_log(PM_LOG_DEBUG, _("check_freespace: total pkg size: %lld, disk space: %lld"), pkgsize, freespace);
if(pkgsize > freespace) {
if(data) {
long long *ptr;
if((ptr = (long long*)malloc(sizeof(long long)))==NULL) {
_alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(long long));
pm_errno = PM_ERR_MEMORY;
return(-1);
}
*ptr = pkgsize;
*data = alpm_list_add(*data, ptr);
if((ptr = (long long*)malloc(sizeof(long long)))==NULL) {
_alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(long long));
FREELIST(*data);
pm_errno = PM_ERR_MEMORY;
return(-1);
}
*ptr = freespace;
*data = alpm_list_add(*data, ptr);
}
pm_errno = PM_ERR_DISK_FULL;
return(-1);
}
else {
return(0);
}
}
#endif
pmtranstype_t SYMEXPORT alpm_trans_get_type()
{
/* Sanity checks */
ASSERT(handle != NULL, return(-1));
@ -383,7 +637,7 @@ unsigned int SYMEXPORT alpm_trans_get_flags()
return handle->trans->flags;
}
alpm_list_t * alpm_trans_get_targets()
alpm_list_t SYMEXPORT * alpm_trans_get_targets()
{
/* Sanity checks */
ASSERT(handle != NULL, return(NULL));

6
lib/libalpm/trans.h
View File

@ -79,6 +79,12 @@ int _alpm_trans_addtarget(pmtrans_t *trans, char *target);
int _alpm_trans_prepare(pmtrans_t *trans, alpm_list_t **data);
int _alpm_trans_commit(pmtrans_t *trans, alpm_list_t **data);
int _alpm_trans_update_depends(pmtrans_t *trans, pmpkg_t *pkg);
int _alpm_runscriptlet(const char *root, const char *installfn,
const char *script, const char *ver,
const char *oldver, pmtrans_t *trans);
#ifndef __sun__
int _alpm_check_freespace(pmtrans_t *trans, alpm_list_t **data);
#endif
#endif /* _ALPM_TRANS_H */

278
lib/libalpm/util.c
View File

@ -27,38 +27,23 @@
#include <stdio.h>
#include <stdlib.h>
#ifdef __sun__
#include <alloca.h>
#endif
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <ctype.h>
#include <dirent.h>
#include <time.h>
#include <syslog.h>
#include <sys/wait.h>
#if defined(__APPLE__) || defined(__OpenBSD__)
#include <sys/syslimits.h>
#endif
#if defined(__APPLE__) || defined(__OpenBSD__) || defined(__sun__)
#include <sys/stat.h>
#endif
#ifdef CYGWIN
#include <limits.h> /* PATH_MAX */
#endif
#include <sys/statvfs.h>
#ifndef __sun__
#include <mntent.h>
#endif
#include <errno.h>
/* libarchive */
#include <archive.h>
#include <archive_entry.h>
/* libalpm */
#include "util.h"
#include "alpm_list.h"
#include "log.h"
#include "trans.h"
#include "sync.h"
#include "error.h"
#include "package.h"
#include "alpm.h"
@ -266,6 +251,9 @@ int _alpm_unpack(const char *archive, const char *prefix, const char *fn)
register struct archive *_archive;
struct archive_entry *entry;
char expath[PATH_MAX];
const int archive_flags = ARCHIVE_EXTRACT_OWNER |
ARCHIVE_EXTRACT_PERM |
ARCHIVE_EXTRACT_TIME;
ALPM_LOG_FUNC;
@ -288,7 +276,7 @@ int _alpm_unpack(const char *archive, const char *prefix, const char *fn)
}
snprintf(expath, PATH_MAX, "%s/%s", prefix, archive_entry_pathname(entry));
archive_entry_set_pathname(entry, expath);
if(archive_read_extract(_archive, entry, ARCHIVE_EXTRACT_FLAGS) != ARCHIVE_OK) {
if(archive_read_extract(_archive, entry, archive_flags) != ARCHIVE_OK) {
_alpm_log(PM_LOG_ERROR, _("could not extract %s: %s\n"), archive_entry_pathname(entry), archive_error_string(_archive));
return(1);
}
@ -388,252 +376,6 @@ int _alpm_ldconfig(const char *root)
return(0);
}
/* A cheap grep for text files, returns 1 if a substring
* was found in the text file fn, 0 if it wasn't
*/
static int grep(const char *fn, const char *needle)
{
FILE *fp;
if((fp = fopen(fn, "r")) == NULL) {
return(0);
}
while(!feof(fp)) {
char line[1024];
fgets(line, 1024, fp);
if(feof(fp)) {
continue;
}
if(strstr(line, needle)) {
fclose(fp);
return(1);
}
}
fclose(fp);
return(0);
}
int _alpm_runscriptlet(const char *root, const char *installfn,
const char *script, const char *ver,
const char *oldver, pmtrans_t *trans)
{
char scriptfn[PATH_MAX];
char cmdline[PATH_MAX];
char tmpdir[PATH_MAX] = "";
char *scriptpath;
struct stat buf;
char cwd[PATH_MAX] = "";
pid_t pid;
int retval = 0;
ALPM_LOG_FUNC;
if(stat(installfn, &buf)) {
/* not found */
_alpm_log(PM_LOG_DEBUG, "scriptlet '%s' not found", installfn);
return(0);
}
if(!strcmp(script, "pre_upgrade") || !strcmp(script, "pre_install")) {
snprintf(tmpdir, PATH_MAX, "%stmp/", root);
if(stat(tmpdir, &buf)) {
_alpm_makepath(tmpdir);
}
snprintf(tmpdir, PATH_MAX, "%stmp/alpm_XXXXXX", root);
if(mkdtemp(tmpdir) == NULL) {
_alpm_log(PM_LOG_ERROR, _("could not create temp directory"));
return(1);
}
_alpm_unpack(installfn, tmpdir, ".INSTALL");
snprintf(scriptfn, PATH_MAX, "%s/.INSTALL", tmpdir);
/* chop off the root so we can find the tmpdir in the chroot */
scriptpath = scriptfn + strlen(root) - 1;
} else {
strncpy(scriptfn, installfn, PATH_MAX);
/* chop off the root so we can find the tmpdir in the chroot */
scriptpath = scriptfn + strlen(root) - 1;
}
if(!grep(scriptfn, script)) {
/* script not found in scriptlet file */
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"));
/* in case of error, cwd content is undefined: so we set it to something */
cwd[0] = 0;
}
/* 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)"), root, strerror(errno));
goto cleanup;
}
_alpm_log(PM_LOG_DEBUG, _("executing %s script..."), script);
if(oldver) {
snprintf(cmdline, PATH_MAX, "source %s %s %s %s",
scriptpath, script, ver, oldver);
} else {
snprintf(cmdline, PATH_MAX, "source %s %s %s",
scriptpath, script, ver);
}
_alpm_log(PM_LOG_DEBUG, "%s", cmdline);
pid = fork();
if(pid == -1) {
_alpm_log(PM_LOG_ERROR, _("could not fork a new process (%s)"), strerror(errno));
retval = 1;
goto cleanup;
}
if(pid == 0) {
FILE *pp;
_alpm_log(PM_LOG_DEBUG, _("chrooting in %s"), root);
if(chroot(root) != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change the root directory (%s)"), strerror(errno));
return(1);
}
if(chdir("/") != 0) {
_alpm_log(PM_LOG_ERROR, _("could not change directory to / (%s)"), strerror(errno));
return(1);
}
umask(0022);
_alpm_log(PM_LOG_DEBUG, _("executing \"%s\""), cmdline);
pp = popen(cmdline, "r");
if(!pp) {
_alpm_log(PM_LOG_ERROR, _("call to popen failed (%s)"), strerror(errno));
retval = 1;
goto cleanup;
}
while(!feof(pp)) {
char line[1024];
if(fgets(line, 1024, pp) == NULL)
break;
/*TODO clean this code up, remove weird SCRIPTLET_START/DONE,
* (void*)atol call, etc. */
/* "START <event desc>" */
if((strlen(line) > strlen(SCRIPTLET_START))
&& !strncmp(line, SCRIPTLET_START, strlen(SCRIPTLET_START))) {
EVENT(trans, PM_TRANS_EVT_SCRIPTLET_START,
_alpm_strtrim(line + strlen(SCRIPTLET_START)), NULL);
/* "DONE <ret code>" */
} else if((strlen(line) > strlen(SCRIPTLET_DONE))
&& !strncmp(line, SCRIPTLET_DONE, strlen(SCRIPTLET_DONE))) {
EVENT(trans, PM_TRANS_EVT_SCRIPTLET_DONE,
(void*)atol(_alpm_strtrim(line + strlen(SCRIPTLET_DONE))),
NULL);
} else {
_alpm_strtrim(line);
/* log our script output */
alpm_logaction(line);
EVENT(trans, PM_TRANS_EVT_SCRIPTLET_INFO, line, NULL);
}
}
pclose(pp);
exit(0);
} else {
if(waitpid(pid, 0, 0) == -1) {
_alpm_log(PM_LOG_ERROR, _("call to waitpid failed (%s)"),
strerror(errno));
retval = 1;
goto cleanup;
}
}
cleanup:
if(strlen(tmpdir) && _alpm_rmrf(tmpdir)) {
_alpm_log(PM_LOG_WARNING, _("could not remove tmpdir %s"), tmpdir);
}
if(strlen(cwd)) {
chdir(cwd);
}
return(retval);
}
#ifndef __sun__
static long long get_freespace()
{
struct mntent *mnt;
const char *table = MOUNTED;
FILE *fp;
long long ret=0;
if((fp = setmntent(table, "r")) == NULL) {
_alpm_log(PM_LOG_ERROR, _("cannot read disk space information from %s: %s"),
table, strerror(errno));
return(-1);
}
while ((mnt = getmntent(fp)))
{
struct statvfs64 buf;
statvfs64(mnt->mnt_dir, &buf);
ret += buf.f_bavail * buf.f_bsize;
}
endmntent(fp);
return(ret);
}
int _alpm_check_freespace(pmtrans_t *trans, alpm_list_t **data)
{
alpm_list_t *i;
long long pkgsize=0, freespace;
ALPM_LOG_FUNC;
for(i = trans->packages; i; i = i->next) {
if(trans->type == PM_TRANS_TYPE_SYNC)
{
pmsyncpkg_t *sync = i->data;
if(sync->type != PM_SYNC_TYPE_REPLACE) {
pmpkg_t *pkg = sync->pkg;
pkgsize += alpm_pkg_get_isize(pkg);
}
}
else
{
pmpkg_t *pkg = i->data;
pkgsize += alpm_pkg_get_size(pkg);
}
}
freespace = get_freespace();
_alpm_log(PM_LOG_DEBUG, _("check_freespace: total pkg size: %lld, disk space: %lld"), pkgsize, freespace);
if(pkgsize > freespace) {
if(data) {
long long *ptr;
if((ptr = (long long*)malloc(sizeof(long long)))==NULL) {
_alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(long long));
pm_errno = PM_ERR_MEMORY;
return(-1);
}
*ptr = pkgsize;
*data = alpm_list_add(*data, ptr);
if((ptr = (long long*)malloc(sizeof(long long)))==NULL) {
_alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(long long));
FREELIST(*data);
pm_errno = PM_ERR_MEMORY;
return(-1);
}
*ptr = freespace;
*data = alpm_list_add(*data, ptr);
}
pm_errno = PM_ERR_DISK_FULL;
return(-1);
}
else {
return(0);
}
}
#endif
/* convert a time_t to a string - buffer MUST be large enough for
* YYYYMMDDHHMMSS - 15 chars */
void _alpm_time2string(time_t t, char *buffer)

14
lib/libalpm/util.h
View File

@ -27,15 +27,12 @@
#include <stdio.h>
#include <libintl.h> /* here so it doesn't need to be included elsewhere */
#include <archive.h>
#include <archive_entry.h>
#include <time.h>
#define FREE(p) do { if (p) { free(p); p = NULL; } } while(0)
#define ASSERT(cond, action) do { if(!(cond)) { action; } } while(0)
#define ARCHIVE_EXTRACT_FLAGS ARCHIVE_EXTRACT_OWNER | ARCHIVE_EXTRACT_PERM | ARCHIVE_EXTRACT_TIME
/* define _() as shortcut for gettext() */
#ifdef ENABLE_NLS
#define _(str) dgettext ("libalpm", str)
@ -57,15 +54,6 @@ 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 *str);
int _alpm_ldconfig(const char *root);
/* TODO wtf? this can't be right */
#ifdef _ALPM_TRANS_H
int _alpm_runscriptlet(const char *root, const char *installfn,
const char *script, const char *ver,
const char *oldver, pmtrans_t *trans);
#ifndef __sun__
int _alpm_check_freespace(pmtrans_t *trans, alpm_list_t **data);
#endif
#endif
void _alpm_time2string(time_t t, char *buffer);
int _alpm_str_cmp(const void *s1, const void *s2);