Revision 3c83b080e4dce42d0f48d28b03691ae1ac0dcde3 authored by Junio C Hamano on 14 March 2014, 21:25:44 UTC, committed by Junio C Hamano on 14 March 2014, 21:25:44 UTC
Tighten codepaths that parse timestamps in commit objects. * jk/commit-dates-parsing-fix: show_ident_date: fix tz range check log: do not segfault on gmtime errors log: handle integer overflow in timestamps date: check date overflow against time_t fsck: report integer overflow in author timestamps t4212: test bogus timestamps with git-log
varint.c
#include "varint.h"
uintmax_t decode_varint(const unsigned char **bufp)
{
const unsigned char *buf = *bufp;
unsigned char c = *buf++;
uintmax_t val = c & 127;
while (c & 128) {
val += 1;
if (!val || MSB(val, 7))
return 0; /* overflow */
c = *buf++;
val = (val << 7) + (c & 127);
}
*bufp = buf;
return val;
}
int encode_varint(uintmax_t value, unsigned char *buf)
{
unsigned char varint[16];
unsigned pos = sizeof(varint) - 1;
varint[pos] = value & 127;
while (value >>= 7)
varint[--pos] = 128 | (--value & 127);
if (buf)
memcpy(buf, varint + pos, sizeof(varint) - pos);
return sizeof(varint) - pos;
}
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