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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "server_setup.h"
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef _XOPEN_SOURCE_EXTENDED
/* This define is "almost" required to build on HPUX 11 */
#include <arpa/inet.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_SYS_POLL_H
#include <sys/poll.h>
#elif defined(HAVE_POLL_H)
#include <poll.h>
#endif
#define ENABLE_CURLX_PRINTF
/* make the curlx header define all printf() functions to use the curlx_*
versions instead */
#include "curlx.h" /* from the private lib dir */
#include "getpart.h"
#include "util.h"
#include "timeval.h"
#if defined(ENABLE_IPV6) && defined(__MINGW32__)
const struct in6_addr in6addr_any = {{ IN6ADDR_ANY_INIT }};
#endif
/* This function returns a pointer to STATIC memory. It converts the given
* binary lump to a hex formatted string usable for output in logs or
* whatever.
*/
char *data_to_hex(char *data, size_t len)
{
static char buf[256*3];
size_t i;
char *optr = buf;
char *iptr = data;
if(len > 255)
len = 255;
for(i=0; i < len; i++) {
if((data[i] >= 0x20) && (data[i] < 0x7f))
*optr++ = *iptr++;
else {
sprintf(optr, "%%%02x", *iptr++);
optr+=3;
}
}
*optr=0; /* in case no sprintf() was used */
return buf;
}
void logmsg(const char *msg, ...)
{
va_list ap;
char buffer[2048 + 1];
FILE *logfp;
int error;
struct timeval tv;
time_t sec;
struct tm *now;
char timebuf[20];
static time_t epoch_offset;
static int known_offset;
if (!serverlogfile) {
fprintf(stderr, "Error: serverlogfile not set\n");
return;
}
tv = curlx_tvnow();
if(!known_offset) {
epoch_offset = time(NULL) - tv.tv_sec;
known_offset = 1;
}
sec = epoch_offset + tv.tv_sec;
now = localtime(&sec); /* not thread safe but we don't care */
snprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld",
(int)now->tm_hour, (int)now->tm_min, (int)now->tm_sec, (long)tv.tv_usec);
va_start(ap, msg);
vsnprintf(buffer, sizeof(buffer), msg, ap);
va_end(ap);
logfp = fopen(serverlogfile, "ab");
if(logfp) {
fprintf(logfp, "%s %s\n", timebuf, buffer);
fclose(logfp);
}
else {
error = ERRNO;
fprintf(stderr, "fopen() failed with error: %d %s\n",
error, strerror(error));
fprintf(stderr, "Error opening file: %s\n", serverlogfile);
fprintf(stderr, "Msg not logged: %s %s\n", timebuf, buffer);
}
}
#ifdef WIN32
/* use instead of perror() on generic windows */
void win32_perror (const char *msg)
{
char buf[512];
DWORD err = SOCKERRNO;
if (!FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err,
LANG_NEUTRAL, buf, sizeof(buf), NULL))
snprintf(buf, sizeof(buf), "Unknown error %lu (%#lx)", err, err);
if (msg)
fprintf(stderr, "%s: ", msg);
fprintf(stderr, "%s\n", buf);
}
#endif /* WIN32 */
#ifdef USE_WINSOCK
void win32_init(void)
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD(USE_WINSOCK, USE_WINSOCK);
err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0) {
perror("Winsock init failed");
logmsg("Error initialising winsock -- aborting");
exit(1);
}
if ( LOBYTE( wsaData.wVersion ) != USE_WINSOCK ||
HIBYTE( wsaData.wVersion ) != USE_WINSOCK ) {
WSACleanup();
perror("Winsock init failed");
logmsg("No suitable winsock.dll found -- aborting");
exit(1);
}
}
void win32_cleanup(void)
{
WSACleanup();
}
#endif /* USE_WINSOCK */
/* set by the main code to point to where the test dir is */
const char *path=".";
char *test2file(long testno)
{
static char filename[256];
snprintf(filename, sizeof(filename), TEST_DATA_PATH, path, testno);
return filename;
}
/*
* Portable function used for waiting a specific amount of ms.
* Waiting indefinitely with this function is not allowed, a
* zero or negative timeout value will return immediately.
*
* Return values:
* -1 = system call error, or invalid timeout value
* 0 = specified timeout has elapsed
*/
int wait_ms(int timeout_ms)
{
#if !defined(MSDOS) && !defined(USE_WINSOCK)
#ifndef HAVE_POLL_FINE
struct timeval pending_tv;
#endif
struct timeval initial_tv;
int pending_ms;
int error;
#endif
int r = 0;
if(!timeout_ms)
return 0;
if(timeout_ms < 0) {
SET_SOCKERRNO(EINVAL);
return -1;
}
#if defined(MSDOS)
delay(timeout_ms);
#elif defined(USE_WINSOCK)
Sleep(timeout_ms);
#else
pending_ms = timeout_ms;
initial_tv = curlx_tvnow();
do {
#if defined(HAVE_POLL_FINE)
r = poll(NULL, 0, pending_ms);
#else
pending_tv.tv_sec = pending_ms / 1000;
pending_tv.tv_usec = (pending_ms % 1000) * 1000;
r = select(0, NULL, NULL, NULL, &pending_tv);
#endif /* HAVE_POLL_FINE */
if(r != -1)
break;
error = SOCKERRNO;
if(error && (error != EINTR))
break;
pending_ms = timeout_ms - (int)curlx_tvdiff(curlx_tvnow(), initial_tv);
if(pending_ms <= 0)
break;
} while(r == -1);
#endif /* USE_WINSOCK */
if(r)
r = -1;
return r;
}
int write_pidfile(const char *filename)
{
FILE *pidfile;
long pid;
pid = (long)getpid();
pidfile = fopen(filename, "wb");
if(!pidfile) {
logmsg("Couldn't write pid file: %s %s", filename, strerror(ERRNO));
return 0; /* fail */
}
fprintf(pidfile, "%ld\n", pid);
fclose(pidfile);
logmsg("Wrote pid %ld to %s", pid, filename);
return 1; /* success */
}
void set_advisor_read_lock(const char *filename)
{
FILE *lockfile;
int error = 0;
int res;
do {
lockfile = fopen(filename, "wb");
} while((lockfile == NULL) && ((error = ERRNO) == EINTR));
if(lockfile == NULL) {
logmsg("Error creating lock file %s error: %d %s",
filename, error, strerror(error));
return;
}
do {
res = fclose(lockfile);
} while(res && ((error = ERRNO) == EINTR));
if(res)
logmsg("Error closing lock file %s error: %d %s",
filename, error, strerror(error));
}
void clear_advisor_read_lock(const char *filename)
{
int error = 0;
int res;
/*
** Log all removal failures. Even those due to file not existing.
** This allows to detect if unexpectedly the file has already been
** removed by a process different than the one that should do this.
*/
do {
res = unlink(filename);
} while(res && ((error = ERRNO) == EINTR));
if(res)
logmsg("Error removing lock file %s error: %d %s",
filename, error, strerror(error));
}
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