1 files changed, 16 insertions, 0 deletions

diff --git a/cache.c b/cache.c
index 1ff1251..8df7c26 100644
--- a/cache.c
+++ b/cache.c
@@ -1,28 +1,44 @@
 /* cache.c: cache management
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
 #include "cgit.h"
 
 const int NOLOCK = -1;
 
+char *cache_safe_filename(const char *unsafe)
+{
+	static char buf[PATH_MAX];
+	char *s = buf;
+	char c;
+
+	while(unsafe && (c = *unsafe++) != 0) {
+		if (c == '/' || c == ' ' || c == '&' || c == '|' || 
+		    c == '>' || c == '<' || c == '.')
+			c = '_';
+		*s++ = c;
+	}
+	*s = '\0';
+	return buf;
+}
+
 int cache_exist(struct cacheitem *item)
 {
 	if (stat(item->name, &item->st)) {
 		item->st.st_mtime = 0;
 		return 0;
 	}
 	return 1;
 }
 
 int cache_create_dirs()
 {
 	char *path;
 
 	path = fmt("%s", cgit_cache_root);
 	if (mkdir(path, S_IRWXU) && errno!=EEXIST)
 		return 0;