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/*
* qstat
* by Steve Jankowski
*
* debug helper functions
* Copyright 2004 Ludwig Nussel
*
* Licensed under the Artistic License, see LICENSE.txt for license terms
*/
#include <stdio.h>
#include <stdlib.h>
#ifndef _WIN32
#include <unistd.h>
#include <sys/param.h>
#else
#include <stdarg.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <fcntl.h>
#include <stdarg.h>
#define QSTAT_DEBUG_C
#include "debug.h"
#ifdef ENABLE_DUMP
#ifndef _WIN32
#include <sys/socket.h>
#else
#include <winsock.h>
#endif
#endif
#ifdef DEBUG
void
_debug(const char *file, int line, const char *function, int level, const char *fmt, ...)
{
va_list ap;
char buf[9];
time_t now = time(NULL);
strftime(buf, 9, "%H:%M:%S", localtime(&now));
fprintf(stderr, "debug(%d) %s %s:%d %s() - ", level, buf, file, line, function);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if ('\n' != fmt[strlen(fmt) - 1]) {
fputs("\n", stderr);
}
}
#endif
static int debug_level = 0;
void
set_debug_level(int level)
{
debug_level = level;
}
int
get_debug_level(void)
{
return (debug_level);
}
void
malformed_packet(const struct qserver *server, const char *fmt, ...)
{
va_list ap;
if (!show_errors) {
return;
}
fputs("malformed packet", stderr);
if (server) {
fprintf(stderr, " from %d.%d.%d.%d:%hu",
server->ipaddr & 0xff,
(server->ipaddr >> 8) & 0xff,
(server->ipaddr >> 16) & 0xff,
(server->ipaddr >> 24) & 0xff,
server->port);
}
fputs(": ", stderr);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (*fmt && (fmt[strlen(fmt) - 1] != '\n')) {
fputc('\n', stderr);
}
}
#ifdef ENABLE_DUMP
static unsigned count = 0;
static void
_dump_packet(const char *tag, const char *buf, int buflen)
{
char *fn = NULL;
int fd, len;
len = 3 + 1 + strlen(tag) + 4 + 1;
fn = malloc(len);
if(!fn) { perror("malloc"); return; }
snprintf(fn, len, "%03u_%s.pkt", count++, tag);
fprintf(stderr, "dumping to %s\n", fn);
fd = open(fn, O_WRONLY | O_CREAT | O_EXCL, 0644);
free(fn);
if (fd == -1) {
perror("open");
return;
}
if (write(fd, buf, buflen) == -1) {
perror("write");
}
close(fd);
}
int do_dump;
ssize_t
send_dump(int s, const void *buf, size_t len, int flags)
{
if (do_dump) {
_dump_packet("send", buf, len);
}
return (send(s, buf, len, flags));
}
#endif
void
dump_packet(const char *buf, int buflen)
{
#ifdef ENABLE_DUMP
_dump_packet("recv", buf, buflen);
#endif
}
void
print_packet(struct qserver *server, const char *buf, int buflen)
{
output_packet(server, buf, buflen, 0);
}
void
output_packet(struct qserver *server, const char *buf, int buflen, int to)
{
static char *hex = "0123456789abcdef";
unsigned char *p = (unsigned char *)buf;
int i, h, a, b, astart, offset = 0;
char line[256];
if (server != NULL) {
fprintf(stderr, "%s %s len %d\n", (to) ? "TO" : "FROM", server->arg, buflen);
}
for (i = buflen; i; offset += 16) {
memset(line, ' ', 256);
h = 0;
h += sprintf(line, "%5d:", offset);
a = astart = h + 16 * 2 + 16 / 4 + 2;
for (b = 16; b && i; b--, i--, p++) {
if ((b & 3) == 0) {
line[h++] = ' ';
}
line[h++] = hex[*p >> 4];
line[h++] = hex[*p & 0xf];
if (isprint(*p)) {
line[a++] = *p;
} else {
line[a++] = '.';
}
if ((a - astart) == 8) {
line[a++] = ' ';
}
}
line[a] = '\0';
fputs(line, stderr);
fputs("\n", stderr);
}
fputs("\n", stderr);
}
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