Parse commit time as uint64_t to avoid overflow The commit time is already stored as a git_time_t, but we were parsing is as a uint32_t. This just switches the parser to use uint64_t which will handle dates further in the future (and adds some tests of those future dates).
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diff --git a/src/signature.c b/src/signature.c
index d776553..3380097 100644
--- a/src/signature.c
+++ b/src/signature.c
@@ -241,15 +241,15 @@ static const char *scan_for_previous_token(const char *buffer, const char *left_
static int parse_time(git_time_t *time_out, const char *buffer)
{
- int time;
int error;
+ int64_t time;
if (*buffer == '+' || *buffer == '-') {
giterr_set(GITERR_INVALID, "Failed while parsing time. '%s' actually looks like a timezone offset.", buffer);
return -1;
}
- error = git__strtol32(&time, buffer, &buffer, 10);
+ error = git__strtol64(&time, buffer, &buffer, 10);
if (!error)
*time_out = (git_time_t)time;
diff --git a/tests-clar/commit/parse.c b/tests-clar/commit/parse.c
index 908d9fb..1ef2bfe 100644
--- a/tests-clar/commit/parse.c
+++ b/tests-clar/commit/parse.c
@@ -121,6 +121,14 @@ passing_signature_test_case passing_signature_cases[] = {
{"author A U Thor <author@example.com> and others 1234567890 -0700\n", "author ", "A U Thor", "author@example.com", 1234567890, -420},
{"author A U Thor <author@example.com> and others 1234567890\n", "author ", "A U Thor", "author@example.com", 1234567890, 0},
{"author A U Thor> <author@example.com> and others 1234567890\n", "author ", "A U Thor>", "author@example.com", 1234567890, 0},
+ /* a variety of dates */
+ {"author Vicent Marti <tanoku@gmail.com> 0 \n", "author ", "Vicent Marti", "tanoku@gmail.com", 0, 0},
+ {"author Vicent Marti <tanoku@gmail.com> 1234567890 \n", "author ", "Vicent Marti", "tanoku@gmail.com", 1234567890, 0},
+ {"author Vicent Marti <tanoku@gmail.com> 2147483647 \n", "author ", "Vicent Marti", "tanoku@gmail.com", 0x7fffffff, 0},
+ {"author Vicent Marti <tanoku@gmail.com> 4294967295 \n", "author ", "Vicent Marti", "tanoku@gmail.com", 0xffffffff, 0},
+ {"author Vicent Marti <tanoku@gmail.com> 4294967296 \n", "author ", "Vicent Marti", "tanoku@gmail.com", 4294967296, 0},
+ {"author Vicent Marti <tanoku@gmail.com> 8589934592 \n", "author ", "Vicent Marti", "tanoku@gmail.com", 8589934592, 0},
+
{NULL,NULL,NULL,NULL,0,0}
};