0041-proc/sig.c: Harden print_given_signals().

And signal_name_to_number().

---------------------------- adapted for newlib branch
. file has been moved to: lib/signals.c
. only 'signal_name_to_number()' was impacted
. function 'print_given_signals()' no longer exists
. thus the bulk of original patch no longer applicable

Signed-off-by: Jim Warner <james.warner@comcast.net>

diff --git a/lib/signals.c b/lib/signals.c
index 6074d6a33f5eccea6caa9f9fbabbcc8a7b6d8279..caff420d300c553302fa49ca0282650a1712b595 100644 (file)
--- a/lib/signals.c
+++ b/lib/signals.c
@@ -200,7 +200,7 @@ int signal_name_to_number(const char *restrict name){
         if(*endp || endp==name)
             return -1; /* not valid */
     }
-    if(val+SIGRTMIN>127)
+    if(val<0 || val+SIGRTMIN>127)
         return -1; /* not valid */
     return val+offset;
 }