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MINOR: buffer_dump with ASCII

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Improve the buffer_dump function with ASCII output.
This commit is contained in:
William Lallemand 2012-11-22 18:01:40 +01:00 committed by Willy Tarreau
parent 00bf1dee9c
commit be0efd884d
1 changed files with 23 additions and 13 deletions
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36
src/buffer.c
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@ -10,6 +10,7 @@
*
*/
#include <ctype.h>
#include <stdio.h>
#include <string.h>
@ -198,23 +199,32 @@ void buffer_bounce_realign(struct buffer *buf)
void buffer_dump(FILE *o, struct buffer *b, int from, int to)
{
fprintf(o, "Dumping buffer %p\n", b);
fprintf(o, " data=%p o=%d i=%d p=%p\n",
b->data, b->o, b->i, b->p);
if (!to || to > buffer_len(b))
to = buffer_len(b);
fprintf(o, " data=%p o=%d i=%d p=%p\n"
" relative: p=0x%04x\n",
b->data, b->o, b->i, b->p, (unsigned int)(b->p - b->data));
fprintf(o, "Dumping contents from byte %d to byte %d\n", from, to);
for (; from < to; from++) {
if ((from & 15) == 0)
fprintf(o, " %04x: ", from);
fprintf(o, "%02x ", b->data[from]);
if ((from & 15) == 7)
fprintf(o, "- ");
else if (((from & 15) == 15) && (from != to-1))
fprintf(o, "\n");
fprintf(o, " 0 1 2 3 4 5 6 7 8 9 a b c d e f\n");
/* dump hexa */
while (from < to) {
int i;
fprintf(o, " %04x: ", from);
for (i = 0; ((from + i) < to) && (i < 16) ; i++) {
fprintf(o, "%02x ", (unsigned char)b->data[from + i]);
if (((from + i) & 15) == 7)
fprintf(o, "- ");
}
fprintf(o, " ");
for (i = 0; (from + i < to) && (i < 16) ; i++) {
fprintf(o, "%c", isprint(b->data[from + i]) ? b->data[from + i] : '.') ;
if ((((from + i) & 15) == 15) && ((from + i) != to-1))
fprintf(o, "\n");
}
from += i;
}
fprintf(o, "\n--\n");
fflush(o);
}