1 int buffer_append_long_hex(buffer *b, unsigned long value) {
2 char *buf;
3 int shift = 0;
4 unsigned long copy = value;
5
6 while (copy) {
7 copy >>= 4;
8 shift++;
9 }
10 if (shift == 0)
11 shift++;
12 if (shift & 0x01)
13 shift++;
14
15 buffer_prepare_append(b, shift + 1);
16 if (b->used == 0)
17 b->used++;
18 buf = b->ptr + (b->used - 1);
19 b->used += shift;
20
21 shift <<= 2;
22 while (shift > 0) {
23 shift -= 4;
24 *(buf++) = hex_chars[(value >> shift) & 0x0F];
25 }
26 *buf = '\0';
27
28 return 0;
29 }
