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Set pm_errno on libarchive errors while reading

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Signed-off-by: Sebastian Nowicki <sebnow@gmail.com>
Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Sebastian Nowicki 2010-09-12 22:01:14 +08:00 committed by Dan McGee
parent f7895cc188
commit 821ff061b1
1 changed files with 13 additions and 3 deletions
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16
lib/libalpm/package.c
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@ -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);
}