Fix issue #12.

Fix issue #13.
Create output directory with correct mode.
Fix the flow where pathname list is not sorted.
Fix ppmd decompression bug introduced in previous commit.
Reduce compression level for automatic pathname sorting.
Change to extraction directory only after opening archive.

adaptive_compress.c

@@ -345,7 +345,13 @@ adapt_decompress(void *src, uint64_t srclen, void *dst,
 		return (bzip2_decompress(src, srclen, dst, dstlen, level, chdr, btype, NULL));
 
 	} else if (cmp_flags == ADAPT_COMPRESS_PPMD) {
-		return (ppmd_decompress(src, srclen, dst, dstlen, level, chdr, btype, adat->ppmd_data));
+		int rv;
+		rv = ppmd_alloc(adat->ppmd_data);
+		if (rv < 0)
+			return (rv);
+		rv = ppmd_decompress(src, srclen, dst, dstlen, level, chdr, btype, adat->ppmd_data);
+		ppmd_free(adat->ppmd_data);
+		return (rv);
 
 	} else if (cmp_flags == ADAPT_COMPRESS_BSC) {
 #ifdef ENABLE_PC_LIBBSC

archive/pc_archive.c

@@ -375,6 +375,7 @@ read_next_path(pc_ctx_t *pctx, char *fpath, char **namechars, int *fpathlen)
 	short namelen;
 	ssize_t rbytes;
 	uchar_t *buf;
+	int n;
 
 	if (pctx->enable_archive_sort) {
 		member_entry_t *mem1, *mem2;
@@ -436,7 +437,7 @@ read_next_path(pc_ctx_t *pctx, char *fpath, char **namechars, int *fpathlen)
 	 * new mmap.
 	 */
 	if (pctx->temp_mmap_len > 0) {
-		int retried, n;
+		int retried;
 
 		if (pctx->temp_file_pos < pctx->temp_mmap_pos ||
 		    pctx->temp_file_pos - pctx->temp_mmap_pos > pctx->temp_mmap_len ||
@@ -508,6 +509,13 @@ do_mmap:
 			return (-1);
 		}
 		fpath[namelen] = '\0';
+		*fpathlen = namelen;
+
+		n = namelen-1;
+		while (fpath[n] == '/' && n > 0) n--;
+		while (fpath[n] != '/' && fpath[n] != '\\' && n > 0) n--;
+		*namechars = &fpath[n+1];
+		printf("%s\n", fpath);
 	}
 	return (rbytes);
 }
@@ -788,6 +796,7 @@ setup_archiver(pc_ctx_t *pctx, struct stat *sbuf)
 			   creat_write_callback, creat_close_callback);
 	pctx->archive_ctx = arc;
 	pctx->archive_members_fd = fd;
+	if (pctx->enable_archive_sort) {
 		pctx->temp_mmap_len = TEMP_MMAP_SIZE;
 		pctx->temp_mmap_buf = mmap(NULL, pctx->temp_mmap_len, PROT_READ,
 					MAP_SHARED, pctx->archive_members_fd, 0);
@@ -795,6 +804,10 @@ setup_archiver(pc_ctx_t *pctx, struct stat *sbuf)
 			log_msg(LOG_WARN, 1, "Unable to mmap pathlist file, switching to read().");
 			pctx->temp_mmap_len = 0;
 		}
+	} else {
+		pctx->temp_mmap_buf = NULL;
+		pctx->temp_mmap_len = 0;
+	}
 	pctx->temp_mmap_pos = 0;
 	pctx->arc_writing = 0;
 
@@ -1235,11 +1248,6 @@ extractor_thread_func(void *dat) {
 		got_cwd = 0;
 	}
 
-	if (chdir(pctx->to_filename) == -1) {
-		log_msg(LOG_ERR, 1, "Cannot change to dir: %s", pctx->to_filename);
-		goto done;
-	}
-
 	ctr = 1;
 	awd = archive_write_disk_new();
 	archive_write_disk_set_options(awd, flags);
@@ -1247,6 +1255,15 @@ extractor_thread_func(void *dat) {
 	arc = (struct archive *)(pctx->archive_ctx);
 	archive_read_open(arc, pctx, arc_open_callback, extract_read_callback, extract_close_callback);
 
+	/*
+	 * Change directory after opening the archive, otherwise archive_read_open() can fail
+	 * for relative paths.
+	 */
+	if (chdir(pctx->to_filename) == -1) {
+		log_msg(LOG_ERR, 1, "Cannot change to dir: %s", pctx->to_filename);
+		goto done;
+	}
+
 	/*
 	 * Read archive entries and extract to disk.
 	 */

pcompress.c

@@ -834,11 +834,16 @@ start_decompress(pc_ctx_t *pctx, const char *filename, char *to_filename)
 				err = 1;
 				goto uncomp_done;
 			}
-			if (mkdir(to_filename, S_IRUSR|S_IWUSR) == -1) {
+			if (mkdir(to_filename, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH) == -1) {
 				log_msg(LOG_ERR, 1, "Unable to create target directory %s.", to_filename);
 				err = 1;
 				goto uncomp_done;
 			}
+			if (stat(to_filename, &sbuf) == -1) {
+				log_msg(LOG_ERR, 1, "Unable to correctly create target directory %s.", to_filename);
+				err = 1;
+				goto uncomp_done;
+			}
 		}
 		if (!S_ISDIR(sbuf.st_mode)) {
 			log_msg(LOG_ERR, 0, "Target path is not a directory.", to_filename);
@@ -3039,7 +3044,7 @@ init_pc_context(pc_ctx_t *pctx, int argc, char *argv[])
 	 * unless it is explicitly disabled via '-n'.
 	 */
 	if (pctx->enable_archive_sort != -1 && pctx->do_compress) {
-		if ((memcmp(pctx->algo, "lz4", 3) == 0 && pctx->level > 2) || pctx->level > 6)
+		if ((memcmp(pctx->algo, "lz4", 3) == 0 && pctx->level > 1) || pctx->level > 4)
 			pctx->enable_archive_sort = 1;
 	} else {
 		pctx->enable_archive_sort = 0;