regex: use regexec_buf()

diff --git a/grep.c b/grep.c
index 7b2b96a4376efe51e41f9311c6fa5250a2dcd13d..8ed56236f049a47490f2c14d999a13e21b98fd2c 100644 (file)
--- a/grep.c
+++ b/grep.c
@@ -848,17 +848,6 @@ static int fixmatch(struct grep_pat *p, char *line, char *eol,
        }
 }
 
-static int regmatch(const regex_t *preg, char *line, char *eol,
-                   regmatch_t *match, int eflags)
-{
-#ifdef REG_STARTEND
-       match->rm_so = 0;
-       match->rm_eo = eol - line;
-       eflags |= REG_STARTEND;
-#endif
-       return regexec(preg, line, 1, match, eflags);
-}
-
 static int patmatch(struct grep_pat *p, char *line, char *eol,
                    regmatch_t *match, int eflags)
 {
@@ -869,7 +858,8 @@ static int patmatch(struct grep_pat *p, char *line, char *eol,
        else if (p->pcre_regexp)
                hit = !pcrematch(p, line, eol, match, eflags);
        else
-               hit = !regmatch(&p->regexp, line, eol, match, eflags);
+               hit = !regexec_buf(&p->regexp, line, eol - line, 1, match,
+                                  eflags);
 
        return hit;
 }
@@ -1741,7 +1731,7 @@ static int grep_source_load_file(struct grep_source *gs)
        i = open(filename, O_RDONLY);
        if (i < 0)
                goto err_ret;
-       data = xmalloc(size + 1);
+       data = xmallocz(size);
        if (st.st_size != read_in_full(i, data, size)) {
                error(_("'%s': short read %s"), filename, strerror(errno));
                close(i);
@@ -1749,7 +1739,6 @@ static int grep_source_load_file(struct grep_source *gs)
                return -1;
        }
        close(i);
-       data[size] = 0;
 
        gs->buf = data;
        gs->size = size;