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Merge pull request #151 from rdebath/patch-3

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Hexdump for verbose mode.
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yrutschle 2017-11-24 13:55:53 +01:00 committed by GitHub
commit e66e443d5e
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1 changed files with 14 additions and 7 deletions
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21
probe.c
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@ -107,25 +107,25 @@ void hexdump(const char *mem, unsigned int len)
{ {
/* print offset */ /* print offset */
if(i % HEXDUMP_COLS == 0) if(i % HEXDUMP_COLS == 0)
printf("0x%06x: ", i); fprintf(stderr, "0x%06x: ", i);
/* print hex data */ /* print hex data */
if(i < len) if(i < len)
printf("%02x ", 0xFF & mem[i]); fprintf(stderr, "%02x ", 0xFF & mem[i]);
else /* end of block, just aligning for ASCII dump */ else /* end of block, just aligning for ASCII dump */
printf(" "); fprintf(stderr, " ");
/* print ASCII dump */ /* print ASCII dump */
if(i % HEXDUMP_COLS == (HEXDUMP_COLS - 1)) { if(i % HEXDUMP_COLS == (HEXDUMP_COLS - 1)) {
for(j = i - (HEXDUMP_COLS - 1); j <= i; j++) { for(j = i - (HEXDUMP_COLS - 1); j <= i; j++) {
if(j >= len) /* end of block, not really printing */ if(j >= len) /* end of block, not really printing */
putchar(' '); fputc(' ', stderr);
else if(isprint(mem[j])) /* printable char */ else if(isprint(mem[j])) /* printable char */
putchar(0xFF & mem[j]); fputc(0xFF & mem[j], stderr);
else /* other char */ else /* other char */
putchar('.'); fputc('.', stderr);
} }
putchar('\n'); fputc('\n', stderr);
} }
} }
} }
@ -297,6 +297,13 @@ int probe_client_protocol(struct connection *cnx)
* happens, we just connect to the default protocol so the caller of this * happens, we just connect to the default protocol so the caller of this
* function does not have to deal with a specific failure condition (the * function does not have to deal with a specific failure condition (the
* connection will just fail later normally). */ * connection will just fail later normally). */
/* Dump hex values of the packet */
if (verbose) {
fprintf(stderr, "hexdump of incoming packet:\n");
hexdump(buffer, n);
}
if (n > 0) { if (n > 0) {
int res = PROBE_NEXT; int res = PROBE_NEXT;