X-Git-Url: https://gitweb.ps.run/ps-cgit/blobdiff_plain/939d32fda70ea66c9db51687beb3cea6da7b0599..d402811bd2db21c7868411a279fd2d220f54c294:/cache.c

diff --git a/cache.c b/cache.c
index e590d7b..6847202 100644
--- a/cache.c
+++ b/cache.c
@@ -52,7 +52,7 @@ static int open_slot(struct cache_slot *slot)
 		return errno;
 
 	slot->bufsize = read(slot->cache_fd, slot->buf, sizeof(slot->buf));
-	if (slot->bufsize == 0)
+	if (slot->bufsize < 0)
 		return errno;
 
 	bufz = memchr(slot->buf, 0, slot->bufsize);
@@ -66,12 +66,16 @@ static int open_slot(struct cache_slot *slot)
 }
 
 /* Close the active cache slot */
-static void close_slot(struct cache_slot *slot)
+static int close_slot(struct cache_slot *slot)
 {
+	int err = 0;
 	if (slot->cache_fd > 0) {
-		close(slot->cache_fd);
-		slot->cache_fd = -1;
+		if (close(slot->cache_fd))
+			err = errno;
+		else
+			slot->cache_fd = -1;
 	}
+	return err;
 }
 
 /* Print the content of the active cache slot (but skip the key). */
@@ -116,12 +120,16 @@ static int is_modified(struct cache_slot *slot)
 }
 
 /* Close an open lockfile */
-static void close_lock(struct cache_slot *slot)
+static int close_lock(struct cache_slot *slot)
 {
+	int err = 0;
 	if (slot->lock_fd > 0) {
-		close(slot->lock_fd);
-		slot->lock_fd = -1;
+		if (close(slot->lock_fd))
+			err = errno;
+		else
+			slot->lock_fd = -1;
 	}
+	return err;
 }
 
 /* Create a lockfile used to store the generated content for a cache
@@ -134,7 +142,8 @@ static int lock_slot(struct cache_slot *slot)
 			     S_IRUSR|S_IWUSR);
 	if (slot->lock_fd == -1)
 		return errno;
-	write(slot->lock_fd, slot->key, slot->keylen + 1);
+	if (write(slot->lock_fd, slot->key, slot->keylen + 1) < 0)
+		return errno;
 	return 0;
 }
 
@@ -150,7 +159,11 @@ static int unlock_slot(struct cache_slot *slot, int replace_old_slot)
 		err = rename(slot->lock_name, slot->cache_name);
 	else
 		err = unlink(slot->lock_name);
-	return err;
+
+	if (err)
+		return errno;
+
+	return 0;
 }
 
 /* Generate the content for the current cache slot by redirecting
@@ -177,7 +190,9 @@ static int fill_slot(struct cache_slot *slot)
 		return errno;
 
 	/* Close the temporary filedescriptor */
-	close(tmp);
+	if (close(tmp))
+		return errno;
+
 	return 0;
 }
 
@@ -332,6 +347,74 @@ int cache_process(int size, const char *path, const char *key, int ttl,
 	return process_slot(&slot);
 }
 
+/* Return a strftime formatted date/time
+ * NB: the result from this function is to shared memory
+ */
+char *sprintftime(const char *format, time_t time)
+{
+	static char buf[64];
+	struct tm *tm;
+
+	if (!time)
+		return NULL;
+	tm = gmtime(&time);
+	strftime(buf, sizeof(buf)-1, format, tm);
+	return buf;
+}
+
+int cache_ls(const char *path)
+{
+	DIR *dir;
+	struct dirent *ent;
+	int err = 0;
+	struct cache_slot slot;
+	char fullname[1024];
+	char *name;
+
+	if (!path) {
+		cache_log("[cgit] cache path not specified\n");
+		return -1;
+	}
+	if (strlen(path) > 1024 - 10) {
+		cache_log("[cgit] cache path too long: %s\n",
+			  path);
+		return -1;
+	}
+	dir = opendir(path);
+	if (!dir) {
+		err = errno;
+		cache_log("[cgit] unable to open path %s: %s (%d)\n",
+			  path, strerror(err), err);
+		return err;
+	}
+	strcpy(fullname, path);
+	name = fullname + strlen(path);
+	if (*(name - 1) != '/') {
+		*name++ = '/';
+		*name = '\0';
+	}
+	slot.cache_name = fullname;
+	while((ent = readdir(dir)) != NULL) {
+		if (strlen(ent->d_name) != 8)
+			continue;
+		strcpy(name, ent->d_name);
+		if ((err = open_slot(&slot)) != 0) {
+			cache_log("[cgit] unable to open path %s: %s (%d)\n",
+				  fullname, strerror(err), err);
+			continue;
+		}
+		printf("%s %s %10lld %s\n",
+		       name,
+		       sprintftime("%Y-%m-%d %H:%M:%S",
+				   slot.cache_st.st_mtime),
+		       slot.cache_st.st_size,
+		       slot.buf);
+		close_slot(&slot);
+	}
+	closedir(dir);
+	return 0;
+}
+
 /* Print a message to stdout */
 void cache_log(const char *format, ...)
 {