diff options
| author | Tobias Stoeckmann <tobias@stoeckmann.org> | 2016-06-18 18:58:07 +0200 |
|---|---|---|
| committer | Allan McRae <allan@archlinux.org> | 2016-08-30 18:10:40 +1000 |
| commit | af83a585745d6108d7af2d4a2d1eae9b28a8c4b6 (patch) | |
| tree | 8a5349da8c49faabedd363b8acd6b2729288868d /src/pacman/util.c | |
| parent | 5fcd60e2641c9293c2783aad509baf217e77aa6f (diff) | |
Handle all POSIX compliant systems in mbscasecmp.
The width of wchar_t is allowed to be of the same width as long,
according to standards. The return type of mbscasecmp is int though.
On amd64 with a 32 bit int, this means that mbscasecmp can return
zero (indicating that strings are equal) even though the input
strings differ.
Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
Signed-off-by: Allan McRae <allan@archlinux.org>
Diffstat (limited to 'src/pacman/util.c')
| -rw-r--r-- | src/pacman/util.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/src/pacman/util.c b/src/pacman/util.c index 81780f7c..b9790836 100644 --- a/src/pacman/util.c +++ b/src/pacman/util.c @@ -1503,6 +1503,8 @@ int select_question(int count) return (preset - 1); } +#define CMP(x, y) ((x) < (y) ? -1 : ((x) > (y) ? 1 : 0)) + static int mbscasecmp(const char *s1, const char *s2) { size_t len1 = strlen(s1), len2 = strlen(s2); @@ -1520,19 +1522,19 @@ static int mbscasecmp(const char *s1, const char *s2) return strcasecmp(p1, p2); } if(b1 == 0 || b2 == 0) { - return c1 - c2; + return CMP(c1, c2); } c1 = towlower(c1); c2 = towlower(c2); if(c1 != c2) { - return c1 - c2; + return CMP(c1, c2); } p1 += b1; p2 += b2; len1 -= b1; len2 -= b2; } - return *p1 - *p2; + return CMP(*p1, *p2); } /* presents a prompt and gets a Y/N answer */ |