diff: fix -q exit code

last_char_is: sacrifice 9 bytes but avoid double-scan


git-svn-id: svn://busybox.net/trunk/busybox@16974 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 6 insertions, 6 deletions

diff --git a/libbb/last_char_is.c b/libbb/last_char_is.c
index 3616d5916..aaa85ddd9 100644
--- a/libbb/last_char_is.c
+++ b/libbb/last_char_is.c
@@ -9,15 +9,15 @@
 
 #include "libbb.h"
 
-/* Find out if the last character of a string matches the one given Don't
- * underrun the buffer if the string length is 0.  Also avoids a possible
- * space-hogging inline of strlen() per usage.
+/* Find out if the last character of a string matches the one given.
+ * Don't underrun the buffer if the string length is 0.
  */
 char* last_char_is(const char *s, int c)
 {
-        if (s) {
-                s = strrchr(s, c);
-                if (s && !s[1])
+        if (s && *s) {
+                size_t sz = strlen(s) - 1;
+                s += sz;
+                if ( (unsigned char)*s == c)
                         return (char*)s;
         }
         return NULL;