diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | string/strfry.c | 24 |
2 files changed, 17 insertions, 12 deletions
diff --git a/ChangeLog b/ChangeLog index 52f4456679..2cf9f3c5ce 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2008-03-31 Ulrich Drepper <drepper@redhat.com> + + [BZ #6007] + * string/strfry.c: Handle empty strings again. + 2008-03-30 Ulrich Drepper <drepper@redhat.com> [BZ #5443] diff --git a/string/strfry.c b/string/strfry.c index d392d5526b..d3fcb14bab 100644 --- a/string/strfry.c +++ b/string/strfry.c @@ -26,7 +26,6 @@ strfry (char *string) { static int init; static struct random_data rdata; - size_t len, i; if (!init) { @@ -37,17 +36,18 @@ strfry (char *string) init = 1; } - len = strlen (string) - 1; - for (i = 0; i < len; ++i) - { - int32_t j; - __random_r (&rdata, &j); - j = j % (len - i) + i; - - char c = string[i]; - string[i] = string[j]; - string[j] = c; - } + size_t len = strlen (string); + if (len > 0) + for (size_t i = 0; i < len - 1; ++i) + { + int32_t j; + __random_r (&rdata, &j); + j = j % (len - i) + i; + + char c = string[i]; + string[i] = string[j]; + string[j] = c; + } return string; } |