From a96f2890f41e0b9b0ffa1bcdb1dddbef28c01662 Mon Sep 17 00:00:00 2001
From: Christian Hesse
Date: Tue, 28 Aug 2018 18:23:36 +0200
Subject: ui-ssdiff: ban strcat()

Git upstream bans strcat() with commit:

  banned.h: mark strcat() as banned
  1b11b64b815db62f93a04242e4aed5687a448748

Signed-off-by: Christian Hesse <mail@eworm.de>
---
 ui-ssdiff.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'ui-ssdiff.c')

diff --git a/ui-ssdiff.c b/ui-ssdiff.c
index a3dd059..c456033 100644
--- a/ui-ssdiff.c
+++ b/ui-ssdiff.c
@@ -117,6 +117,7 @@ static char *replace_tabs(char *line)
 	int n_tabs = 0;
 	int i;
 	char *result;
+	int result_len;
 
 	if (linelen == 0) {
 		result = xmalloc(1);
@@ -128,13 +129,14 @@ static char *replace_tabs(char *line)
 		if (line[i] == '\t')
 			n_tabs += 1;
 	}
-	result = xmalloc(linelen + n_tabs * 8 + 1);
+	result_len = linelen + n_tabs * 8;
+	result = xmalloc(result_len + 1);
 	result[0] = '\0';
 
 	for (;;) {
 		cur_buf = strchr(prev_buf, '\t');
 		if (!cur_buf) {
-			strcat(result, prev_buf);
+			strncat(result, prev_buf, result_len);
 			break;
 		} else {
 			strncat(result, prev_buf, cur_buf - prev_buf);
-- 
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