From cf6da173f62ee96703714e66f8538069a46a63e3 Mon Sep 17 00:00:00 2001
From: Judd Vinet <judd@archlinux.org>
Date: Thu, 28 Sep 2006 20:51:33 +0000
Subject: removed libtar support in favour of libarchive

---
 lib/libalpm/package.c | 44 +++++++++++++++++++++-----------------------
 1 file changed, 21 insertions(+), 23 deletions(-)

(limited to 'lib/libalpm/package.c')

diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index 277b3946..c8822240 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -26,8 +26,6 @@
 #include <fcntl.h>
 #include <string.h>
 #include <libintl.h>
-#include <libtar.h>
-#include <zlib.h>
 /* pacman */
 #include "log.h"
 #include "util.h"
@@ -247,14 +245,9 @@ pmpkg_t *_alpm_pkg_load(char *pkgfile)
 	int config = 0;
 	int filelist = 0;
 	int scriptcheck = 0;
-	TAR *tar = NULL;
+	register struct archive *archive;
+	struct archive_entry *entry;
 	pmpkg_t *info = NULL;
-	tartype_t gztype = {
-		(openfunc_t)_alpm_gzopen_frontend,
-		(closefunc_t)gzclose,
-		(readfunc_t)gzread,
-		(writefunc_t)gzwrite
-	};
 
 	if(pkgfile == NULL || strlen(pkgfile) == 0) {
 		RET_ERR(PM_ERR_WRONG_ARGS, NULL);
@@ -269,23 +262,30 @@ pmpkg_t *_alpm_pkg_load(char *pkgfile)
 		goto error;
 	}
 
-	if(tar_open(&tar, pkgfile, &gztype, O_RDONLY, 0, TAR_GNU) == -1) {
+	if((archive = archive_read_new()) == NULL) {
+		RET_ERR(PM_ERR_LIBARCHIVE_ERROR, NULL);
+	}
+
+	archive_read_support_compression_all(archive);
+	archive_read_support_format_all(archive);
+	if(archive_read_open_file(archive, pkgfile, 10240) != ARCHIVE_OK) {
 		pm_errno = PM_ERR_NOT_A_FILE;
 		goto error;
 	}
-	for(i = 0; !th_read(tar); i++) {
+	for(i = 0; archive_read_next_header(archive, &entry) == ARCHIVE_OK; i++) {
 		if(config && filelist && scriptcheck) {
 			/* we have everything we need */
 			break;
 		}
-		if(!strcmp(th_get_pathname(tar), ".PKGINFO")) {
+		if(!strcmp(archive_entry_pathname(entry), ".PKGINFO")) {
 			char *descfile;
 			int fd;
 
 			/* extract this file into /tmp. it has info for us */
 			descfile = strdup("/tmp/alpm_XXXXXX");
 			fd = mkstemp(descfile);
-			tar_extract_file(tar, descfile);
+			_alpm_archive_read_entry_data_into_fd(archive, fd);
+			close(fd);
 			/* parse the info file */
 			if(parse_descfile(descfile, info, 0) == -1) {
 				_alpm_log(PM_LOG_ERROR, _("could not parse the package description file"));
@@ -300,10 +300,10 @@ pmpkg_t *_alpm_pkg_load(char *pkgfile)
 			FREE(descfile);
 			close(fd);
 			continue;
-		} else if(!strcmp(th_get_pathname(tar), "._install") || !strcmp(th_get_pathname(tar), ".INSTALL")) {
+		} else if(!strcmp(archive_entry_pathname(entry), "._install") || !strcmp(archive_entry_pathname(entry), ".INSTALL")) {
 			info->scriptlet = 1;
 			scriptcheck = 1;
-		} else if(!strcmp(th_get_pathname(tar), ".FILELIST")) {
+		} else if(!strcmp(archive_entry_pathname(entry), ".FILELIST")) {
 			/* Build info->files from the filelist */
 			FILE *fp;
 			char *fn;
@@ -316,7 +316,8 @@ pmpkg_t *_alpm_pkg_load(char *pkgfile)
 			}
 			fn = strdup("/tmp/alpm_XXXXXX");
 			fd = mkstemp(fn);
-			tar_extract_file(tar, fn);
+			_alpm_archive_read_entry_data_into_fd(archive, fd);
+			close(fd);
 			fp = fopen(fn, "r");
 			while(!feof(fp)) {
 				if(fgets(str, PATH_MAX, fp) == NULL) {
@@ -339,19 +340,18 @@ pmpkg_t *_alpm_pkg_load(char *pkgfile)
 			if(!filelist) {
 				/* no .FILELIST present in this package..  build the filelist the */
 				/* old-fashioned way, one at a time */
-				expath = strdup(th_get_pathname(tar));
+				expath = strdup(archive_entry_pathname(entry));
 				info->files = _alpm_list_add(info->files, expath);
 			}
 		}
 
-		if(TH_ISREG(tar) && tar_skip_regfile(tar)) {
+		if(archive_read_data_skip(archive)) {
 			_alpm_log(PM_LOG_ERROR, _("bad package file in %s"), pkgfile);
 			goto error;
 		}
 		expath = NULL;
 	}
-	tar_close(tar);
-	tar = NULL;
+	archive_read_finish(archive);
 
 	if(!config) {
 		_alpm_log(PM_LOG_ERROR, _("missing package info file in %s"), pkgfile);
@@ -367,9 +367,7 @@ pmpkg_t *_alpm_pkg_load(char *pkgfile)
 
 error:
 	FREEPKG(info);
-	if(tar) {
-		tar_close(tar);
-	}
+	archive_read_finish(archive);
 	return(NULL);
 }
 
-- 
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