diff options
| author | Stefan Sperling <stsp@cvs.openbsd.org> | 2013-05-16 12:44:49 +0000 |
|---|---|---|
| committer | Stefan Sperling <stsp@cvs.openbsd.org> | 2013-05-16 12:44:49 +0000 |
| commit | 0f6eb1b312e9754d351d10ccb2ec7e37e9a68ef3 (patch) | |
| tree | b343c96ddd9f84f12286845eb36010e0bdd2ed42 /usr.bin/rcs/diff.c | |
| parent | b944a7770f6d8c4bf0a7038f51e91d6412097b8f (diff) | |
Switch rcsdiff(1) binary file detection from !(isprint() || isspace()) to
checking for embedded NULs, as was done for grep(1) and diff(1) some time ago.
Avoids problems with e.g. latin1-encoded files being treated as binary, since
isprint() uses only ASCII by default and rcsdiff(1) doesn't call setlocale().
ok sthen
Diffstat (limited to 'usr.bin/rcs/diff.c')
| -rw-r--r-- | usr.bin/rcs/diff.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/usr.bin/rcs/diff.c b/usr.bin/rcs/diff.c index 3dede6b45f2..260b2352882 100644 --- a/usr.bin/rcs/diff.c +++ b/usr.bin/rcs/diff.c @@ -1,4 +1,4 @@ -/* $OpenBSD: diff.c,v 1.33 2011/04/20 19:34:16 nicm Exp $ */ +/* $OpenBSD: diff.c,v 1.34 2013/05/16 12:44:48 stsp Exp $ */ /* * Copyright (C) Caldera International Inc. 2001-2002. * All rights reserved. @@ -1132,17 +1132,14 @@ static int asciifile(FILE *f) { unsigned char buf[BUFSIZ]; - size_t i, cnt; + size_t cnt; if (f == NULL) return (1); rewind(f); cnt = fread(buf, 1, sizeof(buf), f); - for (i = 0; i < cnt; i++) - if (!isprint(buf[i]) && !isspace(buf[i])) - return (0); - return (1); + return (memchr(buf, '\0', cnt) == NULL); } #define begins_with(s, pre) (strncmp(s, pre, sizeof(pre)-1) == 0) |