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Simplify dump_ip_header()

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angt
2015-11-10 21:50:31 +01:00
parent b686dd845c
commit e9cad43bee
1 changed files with 9 additions and 6 deletions
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15
main.c
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@@ -493,15 +493,18 @@ static int decrypt_packet (struct crypto_ctx *ctx, uint8_t *packet, size_t size,
static void dump_ip_header (uint8_t *data, size_t size) static void dump_ip_header (uint8_t *data, size_t size)
{ {
const char tbl[] = "0123456789ABCDEF"; if (size<20)
size_t hex_size = (size<20)?size:20; return;
char hex[(20<<1)+1];
for (size_t i=0; i<hex_size; i++) { const char tbl[] = "0123456789ABCDEF";
char hex[41];
for (size_t i=0; i<20; i++) {
hex[(i<<1)+0] = tbl[0xF&(data[i]>>4)]; hex[(i<<1)+0] = tbl[0xF&(data[i]>>4)];
hex[(i<<1)+1] = tbl[0xF&data[i]]; hex[(i<<1)+1] = tbl[0xF&(data[i])];
} }
hex[20<<1] = 0;
hex[40] = 0;
fprintf(stderr, "DUMP(%zu): %s\n", size, hex); fprintf(stderr, "DUMP(%zu): %s\n", size, hex);
} }