diff options
Diffstat (limited to 'src/utils.c')
| -rw-r--r-- | src/utils.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/src/utils.c b/src/utils.c index cba85fe..7426ce1 100644 --- a/src/utils.c +++ b/src/utils.c @@ -132,25 +132,35 @@ int host_to_addr(const char * hostname, uint32_t * result) return 0; } -#if 0 static const char hextab[] = "0123456789ABCDEF"; -void print_hexstr(unsigned char *buf, size_t siz) { - char *out = (char *) calloc(3, siz+1); - unsigned char high, low; +void log_sendrecv_hexstr(const char *prefix, void *buf, size_t siz) { + if (opts.log_level != kLog_sendrecv) { + return; + } + + const size_t outsiz = siz * 3; + + if (outsiz + 1 > BUFSIZ) { + pt_log(kLog_error, "Can not print hex string with size %zu: too big\n", siz); + return; + } + + char out[outsiz + 1]; + unsigned char high, low; - for (size_t i = 0; i < siz; ++i) { - high = (buf[i] & 0xF0) >> 4; - low = buf[i] & 0x0F; + size_t i, j; + for (i = 0, j = 0; j < siz && i < outsiz; i += 3, ++j) { + high = (((unsigned char *)buf)[j] & 0xF0) >> 4; + low = ((unsigned char *)buf)[j] & 0x0F; out[i ] = hextab[high]; out[i+1] = hextab[low]; out[i+2] = ' '; } + out[i] = '\0'; - printf("%s\n", out); - free(out); + pt_log(kLog_sendrecv, "%s[HEX]: %s\n", prefix, out); } -#endif int pt_random(void) { |