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authorSebastian Nowicki <sebnow@gmail.com>2010-09-12 22:01:14 +0800
committerDan McGee <dan@archlinux.org>2010-09-27 10:53:48 -0500
commit821ff061b181d009e0633e5ab12aec7aa608884a (patch)
tree25299e8d5deec49b8a934b0ff526857a76626ac6
parentf7895cc188e221c064aac475908a09d2f50b8d38 (diff)
Set pm_errno on libarchive errors while reading
Signed-off-by: Sebastian Nowicki <sebnow@gmail.com> Signed-off-by: Dan McGee <dan@archlinux.org>
-rw-r--r--lib/libalpm/package.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index 0060300c..717d32ce 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -488,12 +488,15 @@ void SYMEXPORT *alpm_pkg_changelog_open(pmpkg_t *pkg)
/**
* Read data from an open changelog 'file stream'. Similar to fread in
- * functionality, this function takes a buffer and amount of data to read.
+ * functionality, this function takes a buffer and amount of data to read. If an
+ * error occurs pm_errno will be set.
+ *
* @param ptr a buffer to fill with raw changelog data
* @param size the size of the buffer
* @param pkg the package that the changelog is being read from
* @param fp a 'file stream' to the package changelog
- * @return the number of characters read, or 0 if there is no more data
+ * @return the number of characters read, or 0 if there is no more data or an
+ * error occurred.
*/
size_t SYMEXPORT alpm_pkg_changelog_read(void *ptr, size_t size,
const pmpkg_t *pkg, const void *fp)
@@ -502,7 +505,14 @@ size_t SYMEXPORT alpm_pkg_changelog_read(void *ptr, size_t size,
if(pkg->origin == PKG_FROM_CACHE) {
ret = fread(ptr, 1, size, (FILE*)fp);
} else if(pkg->origin == PKG_FROM_FILE) {
- ret = archive_read_data((struct archive*)fp, ptr, size);
+ ssize_t sret = archive_read_data((struct archive*)fp, ptr, size);
+ /* Report error (negative values) */
+ if(sret < 0) {
+ pm_errno = PM_ERR_LIBARCHIVE;
+ ret = 0;
+ } else {
+ ret = (size_t)sret;
+ }
}
return(ret);
}