From 1baddf4b3781c0c714442adfda496d667e1850cd Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ren=C3=A9=20Scharfe?= Date: Sat, 22 May 2010 23:32:43 +0200 Subject: [PATCH] grep: use memmem() for fixed string search Allow searching beyond NUL characters by using memmem() instead of strstr(). Signed-off-by: Rene Scharfe Signed-off-by: Junio C Hamano --- grep.c | 16 +++++++++------- t/t7008-grep-binary.sh | 4 ++++ 2 files changed, 13 insertions(+), 7 deletions(-) diff --git a/grep.c b/grep.c index 22639cde2..c3affb6ca 100644 --- a/grep.c +++ b/grep.c @@ -329,14 +329,15 @@ static void show_name(struct grep_opt *opt, const char *name) opt->output(opt, opt->null_following_name ? "\0" : "\n", 1); } - -static int fixmatch(const char *pattern, char *line, int ignore_case, regmatch_t *match) +static int fixmatch(const char *pattern, char *line, char *eol, + int ignore_case, regmatch_t *match) { char *hit; + if (ignore_case) hit = strcasestr(line, pattern); else - hit = strstr(line, pattern); + hit = memmem(line, eol - line, pattern, strlen(pattern)); if (!hit) { match->rm_so = match->rm_eo = -1; @@ -399,7 +400,7 @@ static int match_one_pattern(struct grep_pat *p, char *bol, char *eol, again: if (p->fixed) - hit = !fixmatch(p->pattern, bol, p->ignore_case, pmatch); + hit = !fixmatch(p->pattern, bol, eol, p->ignore_case, pmatch); else hit = !regexec(&p->regexp, bol, 1, pmatch, eflags); @@ -725,9 +726,10 @@ static int look_ahead(struct grep_opt *opt, int hit; regmatch_t m; - if (p->fixed) - hit = !fixmatch(p->pattern, bol, p->ignore_case, &m); - else { + if (p->fixed) { + hit = !fixmatch(p->pattern, bol, bol + *left_p, + p->ignore_case, &m); + } else { #ifdef REG_STARTEND m.rm_so = 0; m.rm_eo = *left_p; diff --git a/t/t7008-grep-binary.sh b/t/t7008-grep-binary.sh index 4a12d9792..9adc9ed6f 100755 --- a/t/t7008-grep-binary.sh +++ b/t/t7008-grep-binary.sh @@ -51,4 +51,8 @@ test_expect_success 'git grep -q ina a' ' test_cmp expect actual ' +test_expect_success 'git grep -F ile a' ' + git grep -F ile a +' + test_done -- 2.30.2