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-rw-r--r--ui-ssdiff.c6
1 files changed, 4 insertions, 2 deletions
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);