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-rw-r--r--lib/libalpm/add.c22
-rw-r--r--lib/libalpm/be_package.c70
-rw-r--r--lib/libalpm/be_sync.c23
-rw-r--r--lib/libalpm/util.c95
-rw-r--r--lib/libalpm/util.h3
5 files changed, 122 insertions, 91 deletions
diff --git a/lib/libalpm/add.c b/lib/libalpm/add.c
index 44b852f2..78615bb1 100644
--- a/lib/libalpm/add.c
+++ b/lib/libalpm/add.c
@@ -525,23 +525,14 @@ static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg,
if(!(trans->flags & ALPM_TRANS_FLAG_DBONLY)) {
struct archive *archive;
struct archive_entry *entry;
- int cwdfd;
+ struct stat buf;
+ int fd, cwdfd;
_alpm_log(handle, ALPM_LOG_DEBUG, "extracting files\n");
- if((archive = archive_read_new()) == NULL) {
- handle->pm_errno = ALPM_ERR_LIBARCHIVE;
- ret = -1;
- goto cleanup;
- }
-
- archive_read_support_compression_all(archive);
- archive_read_support_format_all(archive);
-
- _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;
+ fd = _alpm_open_archive(db->handle, pkgfile, &buf,
+ &archive, ALPM_ERR_PKG_OPEN);
+ if(fd < 0) {
ret = -1;
goto cleanup;
}
@@ -556,6 +547,8 @@ static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg,
if(chdir(handle->root) != 0) {
_alpm_log(handle, ALPM_LOG_ERROR, _("could not change directory to %s (%s)\n"),
handle->root, strerror(errno));
+ archive_read_finish(archive);
+ CLOSE(fd);
ret = -1;
goto cleanup;
}
@@ -597,6 +590,7 @@ static int commit_single_pkg(alpm_handle_t *handle, alpm_pkg_t *newpkg,
errors += extract_single_file(handle, archive, entry, newpkg, oldpkg);
}
archive_read_finish(archive);
+ CLOSE(fd);
/* restore the old cwd if we have it */
if(cwdfd >= 0) {
diff --git a/lib/libalpm/be_package.c b/lib/libalpm/be_package.c
index 90a19722..4f530e0b 100644
--- a/lib/libalpm/be_package.c
+++ b/lib/libalpm/be_package.c
@@ -40,6 +40,11 @@
#include "package.h"
#include "deps.h" /* _alpm_splitdep */
+struct package_changelog {
+ struct archive *archive;
+ int fd;
+};
+
/**
* Open a package changelog for reading. Similar to fopen in functionality,
* except that the returned 'file stream' is from an archive.
@@ -50,31 +55,38 @@ static void *_package_changelog_open(alpm_pkg_t *pkg)
{
ASSERT(pkg != NULL, return NULL);
- struct archive *archive = NULL;
+ struct package_changelog *changelog;
+ struct archive *archive;
struct archive_entry *entry;
const char *pkgfile = pkg->origin_data.file;
+ struct stat buf;
+ int fd;
- if((archive = archive_read_new()) == NULL) {
- RET_ERR(pkg->handle, ALPM_ERR_LIBARCHIVE, NULL);
- }
-
- archive_read_support_compression_all(archive);
- archive_read_support_format_all(archive);
-
- if(archive_read_open_filename(archive, pkgfile,
- ALPM_BUFFER_SIZE) != ARCHIVE_OK) {
- RET_ERR(pkg->handle, ALPM_ERR_PKG_OPEN, NULL);
+ fd = _alpm_open_archive(pkg->handle, pkgfile, &buf,
+ &archive, ALPM_ERR_PKG_OPEN);
+ if(fd < 0) {
+ return NULL;
}
while(archive_read_next_header(archive, &entry) == ARCHIVE_OK) {
const char *entry_name = archive_entry_pathname(entry);
if(strcmp(entry_name, ".CHANGELOG") == 0) {
- return archive;
+ changelog = malloc(sizeof(struct package_changelog));
+ if(!changelog) {
+ pkg->handle->pm_errno = ALPM_ERR_MEMORY;
+ archive_read_finish(archive);
+ CLOSE(fd);
+ return NULL;
+ }
+ changelog->archive = archive;
+ changelog->fd = fd;
+ return changelog;
}
}
/* we didn't find a changelog */
archive_read_finish(archive);
+ CLOSE(fd);
errno = ENOENT;
return NULL;
@@ -92,7 +104,8 @@ static void *_package_changelog_open(alpm_pkg_t *pkg)
static size_t _package_changelog_read(void *ptr, size_t size,
const alpm_pkg_t UNUSED *pkg, void *fp)
{
- ssize_t sret = archive_read_data((struct archive *)fp, ptr, size);
+ struct package_changelog *changelog = fp;
+ ssize_t sret = archive_read_data(changelog->archive, ptr, size);
/* Report error (negative values) */
if(sret < 0) {
RET_ERR(pkg->handle, ALPM_ERR_LIBARCHIVE, 0);
@@ -110,7 +123,12 @@ static size_t _package_changelog_read(void *ptr, size_t size,
*/
static int _package_changelog_close(const alpm_pkg_t UNUSED *pkg, void *fp)
{
- return archive_read_finish((struct archive *)fp);
+ int ret;
+ struct package_changelog *changelog = fp;
+ ret = archive_read_finish(changelog->archive);
+ CLOSE(changelog->fd);
+ free(changelog);
+ return ret;
}
/** Package file operations struct accessor. We implement this as a method
@@ -370,24 +388,10 @@ alpm_pkg_t *_alpm_pkg_load_internal(alpm_handle_t *handle,
RET_ERR(handle, ALPM_ERR_WRONG_ARGS, NULL);
}
- /* try to create an archive object to read in the package */
- if((archive = archive_read_new()) == NULL) {
- RET_ERR(handle, ALPM_ERR_LIBARCHIVE, NULL);
- }
-
- archive_read_support_compression_all(archive);
- archive_read_support_format_all(archive);
-
- OPEN(fd, pkgfile, O_RDONLY);
- if(fd < 0 || archive_read_open_fd(archive, fd,
- ALPM_BUFFER_SIZE) != ARCHIVE_OK) {
- const char *err = fd < 0 ? strerror(errno) : archive_error_string(archive);
- _alpm_log(handle, ALPM_LOG_ERROR,
- _("could not open file %s: %s\n"), pkgfile, err);
- if(fd < 0 && errno == ENOENT) {
+ fd = _alpm_open_archive(handle, pkgfile, &st, &archive, ALPM_ERR_PKG_OPEN);
+ if(fd < 0) {
+ if(errno == ENOENT) {
handle->pm_errno = ALPM_ERR_PKG_NOT_FOUND;
- } else {
- handle->pm_errno = ALPM_ERR_PKG_OPEN;
}
goto error;
}
@@ -397,10 +401,6 @@ alpm_pkg_t *_alpm_pkg_load_internal(alpm_handle_t *handle,
handle->pm_errno = ALPM_ERR_MEMORY;
goto error;
}
- if(fstat(fd, &st) != 0) {
- handle->pm_errno = ALPM_ERR_PKG_OPEN;
- goto error;
- }
STRDUP(newpkg->filename, pkgfile,
handle->pm_errno = ALPM_ERR_MEMORY; goto error);
newpkg->size = st.st_size;
diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c
index aa260020..54c4f879 100644
--- a/lib/libalpm/be_sync.c
+++ b/lib/libalpm/be_sync.c
@@ -433,26 +433,9 @@ static int sync_db_populate(alpm_db_t *db)
return -1;
}
- if((archive = archive_read_new()) == NULL) {
- RET_ERR(db->handle, ALPM_ERR_LIBARCHIVE, -1);
- }
-
- archive_read_support_compression_all(archive);
- archive_read_support_format_all(archive);
-
- _alpm_log(db->handle, ALPM_LOG_DEBUG,
- "opening database archive %s\n", dbpath);
- OPEN(fd, dbpath, O_RDONLY);
- if(fd < 0 || archive_read_open_fd(archive, fd,
- ALPM_BUFFER_SIZE) != ARCHIVE_OK) {
- const char *err = fd < 0 ? strerror(errno) : archive_error_string(archive);
- _alpm_log(db->handle, ALPM_LOG_ERROR,
- _("could not open file %s: %s\n"), dbpath, err);
- db->handle->pm_errno = ALPM_ERR_DB_OPEN;
- goto cleanup;
- }
- if(fstat(fd, &buf) != 0) {
- db->handle->pm_errno = ALPM_ERR_DB_OPEN;
+ fd = _alpm_open_archive(db->handle, dbpath, &buf,
+ &archive, ALPM_ERR_DB_OPEN);
+ if(fd < 0) {
goto cleanup;
}
est_count = estimate_package_count(&buf, archive);
diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c
index 5070cb93..f5b79688 100644
--- a/lib/libalpm/util.c
+++ b/lib/libalpm/util.c
@@ -233,6 +233,64 @@ size_t _alpm_strip_newline(char *str)
/* Compression functions */
/**
+ * Open an archive for reading and perform the necessary boilerplate.
+ * This takes care of creating the libarchive 'archive' struct, setting up
+ * compression and format options, opening a file descriptor, setting up the
+ * buffer size, and performing a stat on the path once opened.
+ * @param handle the context handle
+ * @param path the path of the archive to open
+ * @param buf space for a stat buffer for the given path
+ * @param archive pointer to place the created archive object
+ * @param error error code to set on failure to open archive
+ * @return -1 on failure, >=0 file descriptor on success
+ */
+int _alpm_open_archive(alpm_handle_t *handle, const char *path,
+ struct stat *buf, struct archive **archive, alpm_errno_t error)
+{
+ int fd;
+ size_t bufsize = ALPM_BUFFER_SIZE;
+
+ if((*archive = archive_read_new()) == NULL) {
+ RET_ERR(handle, ALPM_ERR_LIBARCHIVE, -1);
+ }
+
+ archive_read_support_compression_all(*archive);
+ archive_read_support_format_all(*archive);
+
+ _alpm_log(handle, ALPM_LOG_DEBUG, "opening archive %s\n", path);
+ OPEN(fd, path, O_RDONLY);
+ if(fd < 0) {
+ _alpm_log(handle, ALPM_LOG_ERROR,
+ _("could not open file %s: %s\n"), path, strerror(errno));
+ archive_read_finish(*archive);
+ RET_ERR(handle, error, -1);
+ }
+
+ if(fstat(fd, buf) != 0) {
+ _alpm_log(handle, ALPM_LOG_ERROR,
+ _("could not stat file %s: %s\n"), path, strerror(errno));
+ archive_read_finish(*archive);
+ CLOSE(fd);
+ RET_ERR(handle, error, -1);
+ }
+#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
+ if(buf->st_blksize > ALPM_BUFFER_SIZE) {
+ bufsize = buf->st_blksize;
+ }
+#endif
+
+ if(archive_read_open_fd(*archive, fd, bufsize) != ARCHIVE_OK) {
+ _alpm_log(handle, ALPM_LOG_ERROR, _("could not open file %s: %s\n"),
+ path, archive_error_string(*archive));
+ archive_read_finish(*archive);
+ CLOSE(fd);
+ RET_ERR(handle, error, -1);
+ }
+
+ return fd;
+}
+
+/**
* @brief Unpack a specific file in an archive.
*
* @param handle the context handle
@@ -259,34 +317,26 @@ int _alpm_unpack_single(alpm_handle_t *handle, const char *archive,
* @brief Unpack a list of files in an archive.
*
* @param handle the context handle
- * @param archive the archive to unpack
+ * @param path the archive to unpack
* @param prefix where to extract the files
* @param list a list of files within the archive to unpack or NULL for all
* @param breakfirst break after the first entry found
*
* @return 0 on success, 1 on failure
*/
-int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix,
+int _alpm_unpack(alpm_handle_t *handle, const char *path, const char *prefix,
alpm_list_t *list, int breakfirst)
{
int ret = 0;
mode_t oldmask;
- struct archive *_archive;
+ struct archive *archive;
struct archive_entry *entry;
- int cwdfd;
-
- if((_archive = archive_read_new()) == NULL) {
- RET_ERR(handle, ALPM_ERR_LIBARCHIVE, 1);
- }
-
- archive_read_support_compression_all(_archive);
- archive_read_support_format_all(_archive);
+ struct stat buf;
+ int fd, cwdfd;
- if(archive_read_open_filename(_archive, archive,
- 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);
+ fd = _alpm_open_archive(handle, path, &buf, &archive, ALPM_ERR_PKG_OPEN);
+ if(fd < 0) {
+ return 1;
}
oldmask = umask(0022);
@@ -305,7 +355,7 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix,
goto cleanup;
}
- while(archive_read_next_header(_archive, &entry) == ARCHIVE_OK) {
+ while(archive_read_next_header(archive, &entry) == ARCHIVE_OK) {
const char *entryname;
mode_t mode;
@@ -321,7 +371,7 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix,
char *found = alpm_list_find_str(list, entry_prefix);
free(entry_prefix);
if(!found) {
- if(archive_read_data_skip(_archive) != ARCHIVE_OK) {
+ if(archive_read_data_skip(archive) != ARCHIVE_OK) {
ret = 1;
goto cleanup;
}
@@ -339,14 +389,14 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix,
}
/* Extract the archive entry. */
- int readret = archive_read_extract(_archive, entry, 0);
+ int readret = archive_read_extract(archive, entry, 0);
if(readret == ARCHIVE_WARN) {
/* operation succeeded but a non-critical error was encountered */
_alpm_log(handle, ALPM_LOG_WARNING, _("warning given when extracting %s (%s)\n"),
- entryname, archive_error_string(_archive));
+ entryname, archive_error_string(archive));
} else if(readret != ARCHIVE_OK) {
_alpm_log(handle, ALPM_LOG_ERROR, _("could not extract %s (%s)\n"),
- entryname, archive_error_string(_archive));
+ entryname, archive_error_string(archive));
ret = 1;
goto cleanup;
}
@@ -358,7 +408,8 @@ int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix,
cleanup:
umask(oldmask);
- archive_read_finish(_archive);
+ archive_read_finish(archive);
+ CLOSE(fd);
if(cwdfd >= 0) {
if(fchdir(cwdfd) != 0) {
_alpm_log(handle, ALPM_LOG_ERROR,
diff --git a/lib/libalpm/util.h b/lib/libalpm/util.h
index df16543c..fa86679f 100644
--- a/lib/libalpm/util.h
+++ b/lib/libalpm/util.h
@@ -117,6 +117,9 @@ int _alpm_makepath_mode(const char *path, mode_t mode);
int _alpm_copyfile(const char *src, const char *dest);
char *_alpm_strtrim(char *str);
size_t _alpm_strip_newline(char *str);
+
+int _alpm_open_archive(alpm_handle_t *handle, const char *path,
+ struct stat *buf, struct archive **archive, alpm_errno_t error);
int _alpm_unpack_single(alpm_handle_t *handle, const char *archive,
const char *prefix, const char *filename);
int _alpm_unpack(alpm_handle_t *handle, const char *archive, const char *prefix,
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-24 18:31:51 +0000