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-rw-r--r--lib/libalpm/add.c11
-rw-r--r--lib/libalpm/be_package.c22
-rw-r--r--lib/libalpm/be_sync.c2
-rw-r--r--lib/libalpm/conflict.c33
-rw-r--r--lib/libalpm/dload.c18
-rw-r--r--lib/libalpm/util.c20
-rw-r--r--lib/libalpm/util.h7
7 files changed, 69 insertions, 44 deletions
diff --git a/lib/libalpm/add.c b/lib/libalpm/add.c
index 2ef41782..c6830dce 100644
--- a/lib/libalpm/add.c
+++ b/lib/libalpm/add.c
@@ -460,6 +460,7 @@ static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg,
alpm_pkg_t *oldpkg = NULL;
alpm_db_t *db = handle->db_local;
alpm_trans_t *trans = handle->trans;
+ const char *pkgfile;
ASSERT(trans != NULL, return -1);
@@ -483,13 +484,15 @@ static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg,
EVENT(handle, ALPM_EVENT_ADD_START, newpkg, NULL);
}
+ pkgfile = newpkg->origin_data.file;
+
_alpm_log(handle, ALPM_LOG_DEBUG, "%s package %s-%s\n",
is_upgrade ? "upgrading" : "adding", newpkg->name, newpkg->version);
/* pre_install/pre_upgrade scriptlet */
if(alpm_pkg_has_scriptlet(newpkg) &&
!(trans->flags & ALPM_TRANS_FLAG_NOSCRIPTLET)) {
const char *scriptlet_name = is_upgrade ? "pre_upgrade" : "pre_install";
- _alpm_runscriptlet(handle, newpkg->origin_data.file,
+ _alpm_runscriptlet(handle, pkgfile,
scriptlet_name, newpkg->version, NULL, 1);
}
@@ -535,9 +538,9 @@ static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg,
archive_read_support_compression_all(archive);
archive_read_support_format_all(archive);
- _alpm_log(handle, ALPM_LOG_DEBUG, "archive: %s\n", newpkg->origin_data.file);
- if(archive_read_open_filename(archive, newpkg->origin_data.file,
- ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
+ _alpm_log(handle, ALPM_LOG_DEBUG, "archive: %s\n", pkgfile);
+ if(archive_read_open_filename(archive, pkgfile,
+ ALPM_BUFFER_SIZE) != ARCHIVE_OK) {
handle->pm_errno = ALPM_ERR_PKG_OPEN;
ret = -1;
goto cleanup;
diff --git a/lib/libalpm/be_package.c b/lib/libalpm/be_package.c
index c20c703f..4d9d0e82 100644
--- a/lib/libalpm/be_package.c
+++ b/lib/libalpm/be_package.c
@@ -59,7 +59,7 @@ static void *_package_changelog_open(alpm_pkg_t *pkg)
archive_read_support_format_all(archive);
if(archive_read_open_filename(archive, pkgfile,
- ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
+ ALPM_BUFFER_SIZE) != ARCHIVE_OK) {
RET_ERR(pkg->handle, ALPM_ERR_PKG_OPEN, NULL);
}
@@ -390,7 +390,7 @@ alpm_pkg_t *_alpm_pkg_load_internal(alpm_handle_t *handle,
archive_read_support_format_all(archive);
if(archive_read_open_filename(archive, pkgfile,
- ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
+ ALPM_BUFFER_SIZE) != ARCHIVE_OK) {
alpm_pkg_free(newpkg);
RET_ERR(handle, ALPM_ERR_PKG_OPEN, NULL);
}
@@ -482,17 +482,19 @@ alpm_pkg_t *_alpm_pkg_load_internal(alpm_handle_t *handle,
newpkg->origin_data.file = strdup(pkgfile);
newpkg->ops = get_file_pkg_ops();
newpkg->handle = handle;
+ newpkg->infolevel = INFRQ_BASE | INFRQ_DESC | INFRQ_SCRIPTLET;
if(full) {
- /* attempt to hand back any memory we don't need */
- files = realloc(files, sizeof(alpm_file_t) * files_count);
- /* "checking for conflicts" requires a sorted list, ensure that here */
- _alpm_log(handle, ALPM_LOG_DEBUG, "sorting package filelist for %s\n", pkgfile);
- newpkg->files.files = files_msort(files, files_count);
+ if(files) {
+ /* attempt to hand back any memory we don't need */
+ files = realloc(files, sizeof(alpm_file_t) * files_count);
+ /* "checking for conflicts" requires a sorted list, ensure that here */
+ _alpm_log(handle, ALPM_LOG_DEBUG,
+ "sorting package filelist for %s\n", pkgfile);
+ newpkg->files.files = files_msort(files, files_count);
+ }
newpkg->files.count = files_count;
- newpkg->infolevel = INFRQ_BASE | INFRQ_DESC | INFRQ_FILES | INFRQ_SCRIPTLET;
- } else {
- newpkg->infolevel = INFRQ_BASE | INFRQ_DESC | INFRQ_SCRIPTLET;
+ newpkg->infolevel |= INFRQ_FILES;
}
return newpkg;
diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c
index e9e816c0..3c990246 100644
--- a/lib/libalpm/be_sync.c
+++ b/lib/libalpm/be_sync.c
@@ -440,7 +440,7 @@ static int sync_db_populate(alpm_db_t *db)
_alpm_log(db->handle, ALPM_LOG_DEBUG, "opening database archive %s\n", dbpath);
if(archive_read_open_filename(archive, dbpath,
- ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
+ ALPM_BUFFER_SIZE) != ARCHIVE_OK) {
_alpm_log(db->handle, ALPM_LOG_ERROR, _("could not open file %s: %s\n"), dbpath,
archive_error_string(archive));
archive_read_finish(archive);
diff --git a/lib/libalpm/conflict.c b/lib/libalpm/conflict.c
index f686ca82..486f4bf3 100644
--- a/lib/libalpm/conflict.c
+++ b/lib/libalpm/conflict.c
@@ -473,16 +473,18 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
continue;
}
+ _alpm_log(handle, ALPM_LOG_DEBUG, "checking possible conflict: %s\n", path);
+
if(S_ISDIR(file->mode)) {
struct stat sbuf;
if(S_ISDIR(lsbuf.st_mode)) {
- _alpm_log(handle, ALPM_LOG_DEBUG, "%s is a directory, not a conflict\n", path);
+ _alpm_log(handle, ALPM_LOG_DEBUG, "file is a directory, not a conflict\n");
continue;
}
stat(path, &sbuf);
if(S_ISLNK(lsbuf.st_mode) && S_ISDIR(sbuf.st_mode)) {
_alpm_log(handle, ALPM_LOG_DEBUG,
- "%s is a symlink to a dir, hopefully not a conflict\n", path);
+ "file is a symlink to a dir, hopefully not a conflict\n");
continue;
}
/* if we made it to here, we want all subsequent path comparisons to
@@ -491,7 +493,6 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
path[strlen(path) - 1] = '\0';
}
- _alpm_log(handle, ALPM_LOG_DEBUG, "checking possible conflict: %s\n", path);
relative_path = path + strlen(handle->root);
/* Check remove list (will we remove the conflicting local file?) */
@@ -500,7 +501,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
if(rempkg && _alpm_filelist_contains(alpm_pkg_get_files(rempkg),
relative_path)) {
_alpm_log(handle, ALPM_LOG_DEBUG,
- "local file will be removed, not a conflict: %s\n", path);
+ "local file will be removed, not a conflict\n");
resolved_conflict = 1;
}
}
@@ -521,7 +522,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
handle->trans->skip_remove =
alpm_list_add(handle->trans->skip_remove, strdup(filestr));
_alpm_log(handle, ALPM_LOG_DEBUG,
- "file changed packages, adding to remove skiplist: %s\n", path);
+ "file changed packages, adding to remove skiplist\n");
resolved_conflict = 1;
}
}
@@ -539,16 +540,20 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
free(dir);
}
- if(!resolved_conflict && dbpkg) {
+ /* check if a component of the filepath was a link. canonicalize the path
+ * and look for it in the old package. note that the actual file under
+ * consideration cannot itself be a link, as it might be unowned- path
+ * components can be safely checked as all directories are "unowned". */
+ if(!resolved_conflict && dbpkg && !S_ISLNK(lsbuf.st_mode)) {
char *rpath = calloc(PATH_MAX, sizeof(char));
const char *relative_rpath;
- if(!realpath(path, rpath)) {
- free(rpath);
- continue;
- }
- relative_rpath = rpath + strlen(handle->root);
- if(_alpm_filelist_contains(alpm_pkg_get_files(dbpkg), relative_rpath)) {
- resolved_conflict = 1;
+ if(realpath(path, rpath)) {
+ relative_rpath = rpath + strlen(handle->root);
+ if(_alpm_filelist_contains(alpm_pkg_get_files(dbpkg), relative_rpath)) {
+ _alpm_log(handle, ALPM_LOG_DEBUG,
+ "package contained the resolved realpath\n");
+ resolved_conflict = 1;
+ }
}
free(rpath);
}
@@ -564,7 +569,7 @@ alpm_list_t *_alpm_db_find_fileconflicts(alpm_handle_t *handle,
}
if(!found) {
_alpm_log(handle, ALPM_LOG_DEBUG,
- "file was unowned but in new backup list: %s\n", path);
+ "file was unowned but in new backup list\n");
resolved_conflict = 1;
}
}
diff --git a/lib/libalpm/dload.c b/lib/libalpm/dload.c
index 9d919b0a..efd469d5 100644
--- a/lib/libalpm/dload.c
+++ b/lib/libalpm/dload.c
@@ -178,6 +178,14 @@ static int utimes_long(const char *path, long seconds)
return 0;
}
+/* prefix to avoid possible future clash with getumask(3) */
+static mode_t _getumask(void)
+{
+ mode_t mask = umask(0);
+ umask(mask);
+ return mask;
+}
+
static size_t parse_headers(void *ptr, size_t size, size_t nmemb, void *user)
{
size_t realsize = size * nmemb;
@@ -295,9 +303,12 @@ static FILE *create_tempfile(struct dload_payload *payload, const char *localpat
MALLOC(randpath, len, RET_ERR(payload->handle, ALPM_ERR_MEMORY, NULL));
snprintf(randpath, len, "%salpmtmp.XXXXXX", localpath);
if((fd = mkstemp(randpath)) == -1 ||
+ fchmod(fd, ~(_getumask()) & 0666) ||
!(fp = fdopen(fd, payload->tempfile_openmode))) {
unlink(randpath);
- close(fd);
+ if(fd >= 0) {
+ close(fd);
+ }
_alpm_log(payload->handle, ALPM_LOG_ERROR,
_("failed to create temporary file for download\n"));
return NULL;
@@ -334,9 +345,10 @@ static int curl_download_internal(struct dload_payload *payload,
payload->tempfile_openmode = "wb";
if(!payload->remote_name) {
- payload->remote_name = strdup(get_filename(payload->fileurl));
+ STRDUP(payload->remote_name, get_filename(payload->fileurl),
+ RET_ERR(handle, ALPM_ERR_MEMORY, -1));
}
- if(!payload->remote_name || curl_gethost(payload->fileurl, hostname, sizeof(hostname)) != 0) {
+ if(curl_gethost(payload->fileurl, hostname, sizeof(hostname)) != 0) {
_alpm_log(handle, ALPM_LOG_ERROR, _("url '%s' is invalid\n"), payload->fileurl);
RET_ERR(handle, ALPM_ERR_SERVER_BAD_URL, -1);
}
diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c
index af9cf42f..a60062bc 100644
--- a/lib/libalpm/util.c
+++ b/lib/libalpm/util.c
@@ -129,8 +129,6 @@ int _alpm_makepath_mode(const char *path, mode_t mode)
return ret;
}
-#define CPBUFSIZE 8 * 1024
-
int _alpm_copyfile(const char *src, const char *dest)
{
FILE *in, *out;
@@ -148,10 +146,10 @@ int _alpm_copyfile(const char *src, const char *dest)
return 1;
}
- CALLOC(buf, (size_t)CPBUFSIZE, (size_t)1, ret = 1; goto cleanup;);
+ MALLOC(buf, (size_t)ALPM_BUFFER_SIZE, ret = 1; goto cleanup);
/* do the actual file copy */
- while((len = fread(buf, 1, CPBUFSIZE, in))) {
+ while((len = fread(buf, 1, ALPM_BUFFER_SIZE, in))) {
size_t nwritten = 0;
nwritten = fwrite(buf, 1, len, out);
if((nwritten != len) || ferror(out)) {
@@ -172,7 +170,7 @@ int _alpm_copyfile(const char *src, const char *dest)
cleanup:
fclose(in);
fclose(out);
- FREE(buf);
+ free(buf);
return ret;
}
@@ -286,7 +284,7 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix,
archive_read_support_format_all(_archive);
if(archive_read_open_filename(_archive, archive,
- ARCHIVE_DEFAULT_BYTES_PER_BLOCK) != ARCHIVE_OK) {
+ ALPM_BUFFER_SIZE) != ARCHIVE_OK) {
_alpm_log(handle, ALPM_LOG_ERROR, _("could not open file %s: %s\n"), archive,
archive_error_string(_archive));
RET_ERR(handle, ALPM_ERR_PKG_OPEN, 1);
@@ -740,8 +738,6 @@ int _alpm_lstat(const char *path, struct stat *buf)
}
#ifdef HAVE_LIBSSL
-#define BUFFER_SIZE 8192
-
static int md5_file(const char *path, unsigned char output[16])
{
FILE *f;
@@ -749,7 +745,7 @@ static int md5_file(const char *path, unsigned char output[16])
MD5_CTX ctx;
unsigned char *buf;
- CALLOC(buf, BUFFER_SIZE, sizeof(unsigned char), return 1);
+ CALLOC(buf, ALPM_BUFFER_SIZE, sizeof(unsigned char), return 1);
if((f = fopen(path, "rb")) == NULL) {
free(buf);
@@ -758,7 +754,7 @@ static int md5_file(const char *path, unsigned char output[16])
MD5_Init(&ctx);
- while((n = fread(buf, 1, BUFFER_SIZE, f)) > 0) {
+ while((n = fread(buf, 1, ALPM_BUFFER_SIZE, f)) > 0) {
MD5_Update(&ctx, buf, n);
}
@@ -784,7 +780,7 @@ static int sha2_file(const char *path, unsigned char output[32], int is224)
SHA256_CTX ctx;
unsigned char *buf;
- CALLOC(buf, BUFFER_SIZE, sizeof(unsigned char), return 1);
+ CALLOC(buf, ALPM_BUFFER_SIZE, sizeof(unsigned char), return 1);
if((f = fopen(path, "rb")) == NULL) {
free(buf);
@@ -797,7 +793,7 @@ static int sha2_file(const char *path, unsigned char output[32], int is224)
SHA256_Init(&ctx);
}
- while((n = fread(buf, 1, BUFFER_SIZE, f)) > 0) {
+ while((n = fread(buf, 1, ALPM_BUFFER_SIZE, f)) > 0) {
if(is224) {
SHA224_Update(&ctx, buf, n);
} else {
diff --git a/lib/libalpm/util.h b/lib/libalpm/util.h
index 400a4eeb..8d20a281 100644
--- a/lib/libalpm/util.h
+++ b/lib/libalpm/util.h
@@ -74,6 +74,13 @@
#define CHECK_HANDLE(handle, action) do { if(!(handle)) { action; } (handle)->pm_errno = 0; } while(0)
+/** Standard buffer size used throughout the library. */
+#ifdef BUFSIZ
+#define ALPM_BUFFER_SIZE BUFSIZ
+#else
+#define ALPM_BUFFER_SIZE 8192
+#endif
+
/**
* Used as a buffer/state holder for _alpm_archive_fgets().
*/

Copyright © 2002-2022 Judd Vinet and Aaron Griffin. Copyright © 2022 Erich Eckner.
The Arch Linux name and logo are recognized trademarks. Some rights reserved. The registered trademark Linux® is used pursuant to a sublicense from LMI, the exclusive licensee of Linus Torvalds, owner of the mark on a world-wide basis.