[sr-dev] git:master:d0b1d4b2: misctest: print input data in hex format

Module: kamailio Branch: master Commit: d0b1d4b255c2ec4ad9d7e9505b70453bc6376163 URL: https://github.com/kamailio/kamailio/commit/d0b1d4b255c2ec4ad9d7e9505b70453… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2021-09-08T10:00:56+02:00 misctest: print input data in hex format --- Modified: src/modules/misctest/misctest_mod.c --- Diff: https://github.com/kamailio/kamailio/commit/d0b1d4b255c2ec4ad9d7e9505b70453… Patch: https://github.com/kamailio/kamailio/commit/d0b1d4b255c2ec4ad9d7e9505b70453… --- diff --git a/src/modules/misctest/misctest_mod.c b/src/modules/misctest/misctest_mod.c index f942063225..c8fe64a56c 100644 --- a/src/modules/misctest/misctest_mod.c +++ b/src/modules/misctest/misctest_mod.c @@ -53,6 +53,7 @@ static void mod_destroy(void); static int misctest_memory_init(void); static int misctest_message_init(void); +int misctest_hexprint(void *data, size_t length, int linelen, int split); static int misctest_memory = 0; static int misctest_message = 0; @@ -313,7 +314,9 @@ static int misctest_message_init(void) tmsg.buf = tbuf; - LM_INFO("using data: [[%.*s]]\n", tmsg.len, tmsg.buf); + LM_INFO("using data: [[%.*s]] (%d)\n", tmsg.len, tmsg.buf, tmsg.len); + + misctest_hexprint(tmsg.buf, tmsg.len, 20, 10); if (parse_msg(tmsg.buf, tmsg.len, &tmsg) < 0) { goto cleanup; @@ -342,6 +345,90 @@ static int misctest_message_init(void) } +/** + * misctest_hexprint - output a hex dump of a buffer + * + * data - pointer to the buffer + * length - length of buffer to write + * linelen - number of chars to output per line + * split - number of chars in each chunk on a line + */ + +int misctest_hexprint(void *data, size_t length, int linelen, int split) +{ + char buffer[512]; + char *ptr; + const void *inptr; + int pos; + int remaining = length; + + inptr = data; + + if(sizeof(buffer) <= (3 + (4 * (linelen / split)) + (linelen * 4))) { + LM_ERR("buffer size is too small\n"); + return -1; + } + + while (remaining > 0) { + int lrem; + int splitcount; + ptr = buffer; + + lrem = remaining; + splitcount = 0; + for (pos = 0; pos < linelen; pos++) { + + if (split == splitcount++) { + sprintf(ptr, " "); + ptr += 2; + splitcount = 1; + } + + if (lrem) { + sprintf(ptr, "%0.2x ", *((unsigned char *) inptr + pos)); + lrem--; + } else { + sprintf(ptr, " "); + } + ptr += 3; + } + + *ptr++ = ' '; + *ptr++ = ' '; + + lrem = remaining; + splitcount = 0; + for (pos = 0; pos < linelen; pos++) { + unsigned char c; + + if (split == splitcount++) { + sprintf(ptr, " "); + ptr += 2; + splitcount = 1; + } + + if (lrem) { + c = *((unsigned char *) inptr + pos); + if (c > 31 && c < 127) { + sprintf(ptr, "%c", c); + } else { + sprintf(ptr, "."); + } + lrem--; + } + ptr++; + } + + *ptr = '\0'; + LM_INFO("%s\n", buffer); + + inptr += linelen; + remaining -= linelen; + } + + return 0; +} + /** record a memory chunk list entry. * @param addr - address of the newly allocated memory * @oaram size - size