diff options
Diffstat (limited to 'libbb/trim.c')
| -rw-r--r-- | libbb/trim.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/libbb/trim.c b/libbb/trim.c index 16cb4fb..e47fec7 100644 --- a/libbb/trim.c +++ b/libbb/trim.c @@ -10,9 +10,10 @@ #include "libbb.h" -void FAST_FUNC trim(char *s) +char* FAST_FUNC trim(char *s) { size_t len = strlen(s); + size_t old = len; /* trim trailing whitespace */ while (len && isspace(s[len-1])) @@ -26,5 +27,12 @@ void FAST_FUNC trim(char *s) memmove(s, nws, len); } } - s[len] = '\0'; + + s += len; + /* If it was a "const char*" which does not need trimming, + * avoid superfluous store */ + if (old != len) + *s = '\0'; + + return s; } |