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Diffstat (limited to 'libps/fmt.c')
-rw-r--r--libps/fmt.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/libps/fmt.c b/libps/fmt.c
index 0465555d..580b097e 100644
--- a/libps/fmt.c
+++ b/libps/fmt.c
@@ -68,6 +68,8 @@ _fmt_create (char *src, int posix, struct ps_fmt_specs *fmt_specs,
src = new_fmt->src;
while (*src != '\0')
{
+ char *start = src;
+
if (field - fields == fields_alloced)
/* Time to grow FIELDS to make room for more. */
{
@@ -172,6 +174,19 @@ _fmt_create (char *src, int posix, struct ps_fmt_specs *fmt_specs,
/* This field spec doesn't have a name, so use its flags fields
to set the global ones, and skip it. */
{
+ /* if we didn't use any chars, don't loop indefinitely */
+ if (src == start)
+ {
+ if (err_string)
+ asprintf (err_string, "%s: Unknown format spec", src);
+
+ FREE (new_fmt->src);
+ FREE (new_fmt);
+ FREE (fields);
+
+ return EINVAL;
+ }
+
global_clr_flags = clr_flags;
global_inv_flags = inv_flags;
continue;