1 files changed, 9 insertions, 31 deletions

diff --git a/builtin-for-each-ref.c b/builtin-for-each-ref.c
index 0afa1c5c41..725c1df0fc 100644
--- a/builtin-for-each-ref.c
+++ b/builtin-for-each-ref.c
@@ -87,7 +87,6 @@ static int used_atom_cnt, sort_atom_limit, need_tagged;
 static int parse_atom(const char *atom, const char *ep)
 {
 	const char *sp;
-	char *n;
 	int i, at;
 
 	sp = atom;
@@ -120,10 +119,7 @@ static int parse_atom(const char *atom, const char *ep)
 			     (sizeof *used_atom) * used_atom_cnt);
 	used_atom_type = xrealloc(used_atom_type,
 				  (sizeof(*used_atom_type) * used_atom_cnt));
-	n = xmalloc(ep - atom + 1);
-	memcpy(n, atom, ep - atom);
-	n[ep-atom] = 0;
-	used_atom[at] = n;
+	used_atom[at] = xmemdupz(atom, ep - atom);
 	used_atom_type[at] = valid_atom[i].cmp_type;
 	return at;
 }
@@ -305,46 +301,28 @@ static const char *find_wholine(const char *who, int wholen, const char *buf, un
 static const char *copy_line(const char *buf)
 {
 	const char *eol = strchr(buf, '\n');
-	char *line;
-	int len;
 	if (!eol)
 		return "";
-	len = eol - buf;
-	line = xmalloc(len + 1);
-	memcpy(line, buf, len);
-	line[len] = 0;
-	return line;
+	return xmemdupz(buf, eol - buf);
 }
 
 static const char *copy_name(const char *buf)
 {
-	const char *eol = strchr(buf, '\n');
-	const char *eoname = strstr(buf, " <");
-	char *line;
-	int len;
-	if (!(eoname && eol && eoname < eol))
-		return "";
-	len = eoname - buf;
-	line = xmalloc(len + 1);
-	memcpy(line, buf, len);
-	line[len] = 0;
-	return line;
+	const char *cp;
+	for (cp = buf; *cp != '\n'; cp++) {
+		if (!strncmp(cp, " <", 2))
+			return xmemdupz(buf, cp - buf);
+	}
+	return "";
 }
 
 static const char *copy_email(const char *buf)
 {
 	const char *email = strchr(buf, '<');
 	const char *eoemail = strchr(email, '>');
-	char *line;
-	int len;
 	if (!email || !eoemail)
 		return "";
-	eoemail++;
-	len = eoemail - email;
-	line = xmalloc(len + 1);
-	memcpy(line, email, len);
-	line[len] = 0;
-	return line;
+	return xmemdupz(email, eoemail + 1 - email);
 }
 
 static void grab_date(const char *buf, struct atom_value *v)