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-rw-r--r--builtin-blame.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/builtin-blame.c b/builtin-blame.c
index d4e25a595d..6408ec8ee6 100644
--- a/builtin-blame.c
+++ b/builtin-blame.c
@@ -1305,6 +1305,7 @@ static void get_ac_line(const char *inbuf, const char *what,
error_out:
/* Ugh */
*tz = "(unknown)";
+ strcpy(person, *tz);
strcpy(mail, *tz);
*time = 0;
return;
@@ -1314,20 +1315,26 @@ static void get_ac_line(const char *inbuf, const char *what,
tmp = person;
tmp += len;
*tmp = 0;
- while (*tmp != ' ')
+ while (person < tmp && *tmp != ' ')
tmp--;
+ if (tmp <= person)
+ goto error_out;
*tz = tmp+1;
tzlen = (person+len)-(tmp+1);
*tmp = 0;
- while (*tmp != ' ')
+ while (person < tmp && *tmp != ' ')
tmp--;
+ if (tmp <= person)
+ goto error_out;
*time = strtoul(tmp, NULL, 10);
timepos = tmp;
*tmp = 0;
- while (*tmp != ' ')
+ while (person < tmp && *tmp != ' ')
tmp--;
+ if (tmp <= person)
+ return;
mailpos = tmp + 1;
*tmp = 0;
maillen = timepos - tmp;