Remove troublesome chars from cachefile names
Add a funtion cache_safe_filename() which replaces possibly bad filename
characters with '_'.
Signed-off-by: Lars Hjemli <hjemli@gmail.com>
diff --git a/cache.c b/cache.c
index 1ff1251..8df7c26 100644
--- a/cache.c
+++ b/cache.c
@@ -10,6 +10,22 @@
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)) {