From f51c95fa0edaaf651387456e716899433a0c579c Mon Sep 17 00:00:00 2001
From: Andre Noll <maan@systemlinux.org>
Date: Fri, 14 Sep 2007 17:41:31 +0200
Subject: [PATCH] afs: com_add() fixes and improvements.

- Simplify verify_path()
- make com_add() accept paths that end with a slash.
- add_one_audio_file() _always_ returns success.
---
 aft.c   | 61 ++++++++++++++++++++++++++++++---------------------------
 error.h |  3 +--
 2 files changed, 33 insertions(+), 31 deletions(-)

diff --git a/aft.c b/aft.c
index 8473bc9b..ac7d9a1a 100644
--- a/aft.c
+++ b/aft.c
@@ -205,40 +205,38 @@ static int verify_dotfile(const char *rest)
 	return 1;
 }
 
-static int verify_path(const char *path, char **resolved_path)
+static int verify_path(const char *orig_path, char **resolved_path)
 {
-	const char *orig_path = path;
 	char c;
 	const char prefix[] = AFS_AUDIO_FILE_DIR "/";
+	const char *path = orig_path;
 	const size_t prefix_len = strlen(prefix);
 
-	PARA_DEBUG_LOG("path: %s\n", path);
 	c = *path++;
 	if (!c)
-		return -E_BAD_PATH;
+		goto bad_path;
 	while (c) {
 		if (c == '/') {
 			c = *path++;
 			switch (c) {
 			default:
 				continue;
-			case '/': case '\0':
-				break;
+			case '/': /* double slash */
+				goto bad_path;
 			case '.':
-				if (verify_dotfile(path) > 0)
-					continue;
+				if (verify_dotfile(path) < 0)
+					goto bad_path;
 			}
-			*resolved_path = NULL;
-			return -E_BAD_PATH;
 		}
 		c = *path++;
 	}
-	if (*orig_path == '/')
-		*resolved_path = prefix_path("", 0, orig_path);
-	else
+	if (*orig_path != '/')
 		*resolved_path = prefix_path(prefix, prefix_len, orig_path);
-	PARA_DEBUG_LOG("resolved: %s\n", *resolved_path);
-	return *resolved_path? 1: -E_BAD_PATH;
+	else
+		*resolved_path = para_strdup(orig_path);
+	return 1;
+bad_path:
+	return -E_BAD_PATH;
 }
 
 enum afhi_offsets {
@@ -288,7 +286,7 @@ static unsigned sizeof_chunk_info_buf(struct audio_format_info *afhi)
 }
 
 /** The offsets of the data contained in the AFTCOL_CHUNKS column. */
-enum chunk_info_offsets {
+enum chunk_info_offsets{
 	/** The total number of chunks (4 bytes). */
 	CHUNKS_TOTAL_OFFSET = 0,
 	/** The length of the audio file header (4 bytes). */
@@ -1394,7 +1392,6 @@ static int hash_sister_callback(const struct osl_object *query,
 	return 1;
 }
 
-
 static int add_one_audio_file(const char *arg, const void *private_data)
 {
 	int ret;
@@ -1403,14 +1400,14 @@ static int add_one_audio_file(const char *arg, const void *private_data)
 	struct audio_format_info afhi, *afhi_ptr = NULL;
 	struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
 	struct osl_object map, obj = {.data = NULL}, query, result;
-	char *path;
+	char *path = NULL;
 	HASH_TYPE hash[HASH_SIZE];
 
 	afhi.header_offset = 0;
 	afhi.header_len = 0;
 	ret = verify_path(arg, &path);
 	if (ret < 0)
-		return ret;
+		goto out_free;
 	query.data = path;
 	query.size = strlen(path) + 1;
 	ret = send_callback_request(path_brother_callback, &query, &result);
@@ -1471,8 +1468,8 @@ out_unmap:
 	munmap(map.data, map.size);
 out_free:
 	if (ret < 0)
-		send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
-			PARA_STRERROR(-ret));
+		send_va_buffer(pad->fd, "failed to add %s (%s)\n", path?
+			path : arg, PARA_STRERROR(-ret));
 	free(obj.data);
 	free(path);
 	if (afhi_ptr)
@@ -1511,15 +1508,21 @@ int com_add(int fd, int argc, char * const * const argv)
 	if (argc <= i)
 		return -E_AFT_SYNTAX;
 	for (; i < argc; i++) {
-		ret = stat(argv[i], &statbuf);
+		char *path = para_strdup(argv[i]);
+		size_t len = strlen(path);
+		while (len > 1 && path[--len] == '/')
+			path[len] = '\0';
+		ret = stat(path, &statbuf);
 		if (ret < 0)
-			return -E_AFS_STAT;
-		if (S_ISDIR(statbuf.st_mode)) {
-			ret = for_each_file_in_dir(argv[i],
-				add_one_audio_file, &pad);
-			continue;
-		}
-		ret = add_one_audio_file(argv[i], &pad);
+			PARA_NOTICE_LOG("failed to stat %s (%s)", path,
+				strerror(errno));
+		else
+			if (S_ISDIR(statbuf.st_mode))
+				for_each_file_in_dir(path, add_one_audio_file,
+					&pad);
+			else
+				add_one_audio_file(path, &pad);
+		free(path);
 	}
 	ret = 1;
 	return ret;
diff --git a/error.h b/error.h
index 1be0536e..302d7e9f 100644
--- a/error.h
+++ b/error.h
@@ -197,13 +197,12 @@ extern const char **para_errlist[];
 	PARA_ERROR(BAD_AFS, "fixme"), \
 	PARA_ERROR(LOCALTIME, "fixme"), \
 	PARA_ERROR(STRFTIME, "fixme"), \
-	PARA_ERROR(BAD_PATH, "fixme"), \
+	PARA_ERROR(BAD_PATH, "invalid path"), \
 	PARA_ERROR(BAD_SORT, "fixme"), \
 	PARA_ERROR(FNMATCH, "fixme"), \
 	PARA_ERROR(NO_MATCH, "fixme"), \
 	PARA_ERROR(NO_AFHI, "fixme"), \
 	PARA_ERROR(AFT_SYNTAX, "syntax error"), \
-	PARA_ERROR(AFS_STAT, "stat(2) failed"), \
 	PARA_ERROR(HASH_MISMATCH, "fixme"), \
 
 
-- 
2.39.5