Revision 1697bf30df3ec6c28b180bc290d7d11d2fe97562 authored by Junio C Hamano on 24 April 2014, 19:31:50 UTC, committed by Junio C Hamano on 24 April 2014, 19:31:51 UTC
A last minute (and hopefully the last) fix to avoid coredumps due to an incorrect pointer arithmetic. * jk/pack-bitmap: ewah_bitmap.c: do not assume size_t and eword_t are the same size
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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