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s2-mod/deps/curl/tests/server/util.c
Rim 20bc2549f3 chore: add deps locally
2025-04-28 23:30:04 -04:00

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 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 https://curl.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.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
#include "server_setup.h"
#ifndef UNDER_CE
#include <signal.h>
#endif
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef _XOPEN_SOURCE_EXTENDED
/* This define is "almost" required to build on HP-UX 11 */
#include <arpa/inet.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef MSDOS
#include <dos.h> /* delay() */
#endif
#ifdef _WIN32
#include "strerror.h"
#endif
#include "curlx.h" /* from the private lib dir */
#include "util.h"
/* need init from main() */
const char *pidname = NULL;
const char *portname = NULL; /* none by default */
const char *serverlogfile = NULL;
int serverlogslocked;
const char *configfile = NULL;
const char *logdir = "log";
char loglockfile[256];
#ifdef USE_IPV6
bool use_ipv6 = FALSE;
#endif
const char *ipv_inuse = "IPv4";
unsigned short server_port = 0;
const char *socket_type = "IPv4";
int socket_domain = AF_INET;
/* 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 {
msnprintf(optr, 4, "%%%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;
struct curltime tv;
time_t sec;
struct tm *now;
char timebuf[20];
static time_t epoch_offset;
static int known_offset;
if(!serverlogfile) {
fprintf(stderr, "Serverlogfile not set error\n");
return;
}
tv = curlx_now();
if(!known_offset) {
epoch_offset = time(NULL) - tv.tv_sec;
known_offset = 1;
}
sec = epoch_offset + tv.tv_sec;
/* !checksrc! disable BANNEDFUNC 1 */
now = localtime(&sec); /* not thread safe but we don't care */
msnprintf(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);
mvsnprintf(buffer, sizeof(buffer), msg, ap);
va_end(ap);
do {
logfp = fopen(serverlogfile, "ab");
/* !checksrc! disable ERRNOVAR 1 */
} while(!logfp && (errno == EINTR));
if(logfp) {
fprintf(logfp, "%s %s\n", timebuf, buffer);
fclose(logfp);
}
else {
int 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);
}
}
void loghex(unsigned char *buffer, ssize_t len)
{
char data[12000];
ssize_t i;
unsigned char *ptr = buffer;
char *optr = data;
ssize_t width = 0;
int left = sizeof(data);
for(i = 0; i < len && (left >= 0); i++) {
msnprintf(optr, left, "%02x", ptr[i]);
width += 2;
optr += 2;
left -= 2;
}
if(width)
logmsg("'%s'", data);
}
unsigned char byteval(char *value)
{
unsigned long num = strtoul(value, NULL, 10);
return num & 0xff;
}
#ifdef _WIN32
/* use instead of perror() on generic Windows */
static void win32_perror(const char *msg)
{
char buf[512];
int err = SOCKERRNO;
curlx_winapi_strerror(err, buf, sizeof(buf));
if(msg)
fprintf(stderr, "%s: ", msg);
fprintf(stderr, "%s\n", buf);
}
static void win32_cleanup(void)
{
#ifdef USE_WINSOCK
WSACleanup();
#endif /* USE_WINSOCK */
/* flush buffers of all streams regardless of their mode */
_flushall();
}
int win32_init(void)
{
curlx_now_init();
#ifdef USE_WINSOCK
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD(2, 2);
err = WSAStartup(wVersionRequested, &wsaData);
if(err) {
win32_perror("Winsock init failed");
logmsg("Error initialising Winsock -- aborting");
return 1;
}
if(LOBYTE(wsaData.wVersion) != LOBYTE(wVersionRequested) ||
HIBYTE(wsaData.wVersion) != HIBYTE(wVersionRequested) ) {
WSACleanup();
win32_perror("Winsock init failed");
logmsg("No suitable winsock.dll found -- aborting");
return 1;
}
}
#endif /* USE_WINSOCK */
atexit(win32_cleanup);
return 0;
}
/* socket-safe strerror (works on Winsock errors, too) */
const char *sstrerror(int err)
{
static char buf[512];
return curlx_winapi_strerror(err, buf, sizeof(buf));
}
#endif /* _WIN32 */
/* set by the main code to point to where the test dir is */
const char *srcpath = ".";
FILE *test2fopen(long testno, const char *logdir2)
{
FILE *stream;
char filename[256];
/* first try the alternative, preprocessed, file */
msnprintf(filename, sizeof(filename), "%s/test%ld", logdir2, testno);
stream = fopen(filename, "rb");
if(stream)
return stream;
/* then try the source version */
msnprintf(filename, sizeof(filename), "%s/data/test%ld", srcpath, testno);
stream = fopen(filename, "rb");
return stream;
}
/*
* 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(timediff_t timeout_ms)
{
int r = 0;
if(!timeout_ms)
return 0;
if(timeout_ms < 0) {
SET_SOCKERRNO(SOCKEINVAL);
return -1;
}
#if defined(MSDOS)
delay((unsigned int)timeout_ms);
#elif defined(_WIN32)
/* prevent overflow, timeout_ms is typecast to ULONG/DWORD. */
#if TIMEDIFF_T_MAX >= ULONG_MAX
if(timeout_ms >= ULONG_MAX)
timeout_ms = ULONG_MAX-1;
/* do not use ULONG_MAX, because that is equal to INFINITE */
#endif
Sleep((DWORD)timeout_ms);
#else
/* avoid using poll() for this since it behaves incorrectly with no sockets
on Apple operating systems */
{
struct timeval pending_tv;
r = select(0, NULL, NULL, NULL, curlx_mstotv(&pending_tv, timeout_ms));
}
#endif /* _WIN32 */
if(r) {
if((r == -1) && (SOCKERRNO == SOCKEINTR))
/* make EINTR from select or poll not a "lethal" error */
r = 0;
else
r = -1;
}
return r;
}
curl_off_t our_getpid(void)
{
curl_off_t pid;
pid = (curl_off_t)curlx_getpid();
#ifdef _WIN32
/* store pid + MAX_PID to avoid conflict with Cygwin/msys PIDs, see also:
* - 2019-01-31: https://cygwin.com/git/?p=newlib-cygwin.git;a=commit; ↵
* h=b5e1003722cb14235c4f166be72c09acdffc62ea
* - 2019-02-02: https://cygwin.com/git/?p=newlib-cygwin.git;a=commit; ↵
* h=448cf5aa4b429d5a9cebf92a0da4ab4b5b6d23fe
* - 2024-12-19: https://cygwin.com/git/?p=newlib-cygwin.git;a=commit; ↵
* h=363357c023ce01e936bdaedf0f479292a8fa4e0f
*/
pid += 4194304;
#endif
return pid;
}
int write_pidfile(const char *filename)
{
FILE *pidfile;
curl_off_t pid;
pid = our_getpid();
pidfile = fopen(filename, "wb");
if(!pidfile) {
logmsg("Couldn't write pid file: %s %s", filename, strerror(errno));
return 0; /* fail */
}
fprintf(pidfile, "%" CURL_FORMAT_CURL_OFF_T "\n", pid);
fclose(pidfile);
logmsg("Wrote pid %" CURL_FORMAT_CURL_OFF_T " to %s", pid, filename);
return 1; /* success */
}
/* store the used port number in a file */
int write_portfile(const char *filename, int port)
{
FILE *portfile = fopen(filename, "wb");
if(!portfile) {
logmsg("Couldn't write port file: %s %s", filename, strerror(errno));
return 0; /* fail */
}
fprintf(portfile, "%d\n", port);
fclose(portfile);
logmsg("Wrote port %d to %s", port, filename);
return 1; /* success */
}
void set_advisor_read_lock(const char *filename)
{
FILE *lockfile;
int error = 0;
int res;
do {
lockfile = fopen(filename, "wb");
/* !checksrc! disable ERRNOVAR 1 */
} while(!lockfile && ((error = errno) == EINTR));
if(!lockfile) {
logmsg("Error creating lock file %s error (%d) %s",
filename, error, strerror(error));
return;
}
res = fclose(lockfile);
if(res)
logmsg("Error closing lock file %s error (%d) %s",
filename, errno, strerror(errno));
}
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);
/* !checksrc! disable ERRNOVAR 1 */
} while(res && ((error = errno) == EINTR));
if(res)
logmsg("Error removing lock file %s error (%d) %s",
filename, error, strerror(error));
}
/* vars used to keep around previous signal handlers */
typedef void (*SIGHANDLER_T)(int);
#if defined(_MSC_VER) && (_MSC_VER <= 1700)
/* Workaround for warning C4306:
'type cast' : conversion from 'int' to 'void (__cdecl *)(int)' */
#undef SIG_ERR
#define SIG_ERR ((SIGHANDLER_T)(size_t)-1)
#endif
#ifdef SIGHUP
static SIGHANDLER_T old_sighup_handler = SIG_ERR;
#endif
#ifdef SIGPIPE
static SIGHANDLER_T old_sigpipe_handler = SIG_ERR;
#endif
#ifdef SIGALRM
static SIGHANDLER_T old_sigalrm_handler = SIG_ERR;
#endif
#ifdef SIGINT
static SIGHANDLER_T old_sigint_handler = SIG_ERR;
#endif
#ifdef SIGTERM
static SIGHANDLER_T old_sigterm_handler = SIG_ERR;
#endif
#if defined(SIGBREAK) && defined(_WIN32)
static SIGHANDLER_T old_sigbreak_handler = SIG_ERR;
#endif
#if defined(_WIN32) && !defined(CURL_WINDOWS_UWP) && !defined(UNDER_CE)
static unsigned int thread_main_id = 0;
static HANDLE thread_main_window = NULL;
static HWND hidden_main_window = NULL;
#endif
/* var which if set indicates that the program should finish execution */
volatile int got_exit_signal = 0;
/* if next is set indicates the first signal handled in exit_signal_handler */
volatile int exit_signal = 0;
#ifdef _WIN32
/* event which if set indicates that the program should finish */
HANDLE exit_event = NULL;
#endif
/* signal handler that will be triggered to indicate that the program
* should finish its execution in a controlled manner as soon as possible.
* The first time this is called it will set got_exit_signal to one and
* store in exit_signal the signal that triggered its execution.
*/
#ifndef UNDER_CE
static void exit_signal_handler(int signum)
{
int old_errno = errno;
logmsg("exit_signal_handler (%d)", signum);
if(got_exit_signal == 0) {
got_exit_signal = 1;
exit_signal = signum;
#ifdef _WIN32
if(exit_event)
(void)SetEvent(exit_event);
#endif
}
(void)signal(signum, exit_signal_handler);
CURL_SETERRNO(old_errno);
}
#endif
#if defined(_WIN32) && !defined(UNDER_CE)
/* CTRL event handler for Windows Console applications to simulate
* SIGINT, SIGTERM and SIGBREAK on CTRL events and trigger signal handler.
*
* Background information from MSDN:
* SIGINT is not supported for any Win32 application. When a CTRL+C
* interrupt occurs, Win32 operating systems generate a new thread
* to specifically handle that interrupt. This can cause a single-thread
* application, such as one in UNIX, to become multithreaded and cause
* unexpected behavior.
* [...]
* The SIGILL and SIGTERM signals are not generated under Windows.
* They are included for ANSI compatibility. Therefore, you can set
* signal handlers for these signals by using signal, and you can also
* explicitly generate these signals by calling raise. Source:
* https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/signal
*/
static BOOL WINAPI ctrl_event_handler(DWORD dwCtrlType)
{
int signum = 0;
logmsg("ctrl_event_handler: %lu", dwCtrlType);
switch(dwCtrlType) {
#ifdef SIGINT
case CTRL_C_EVENT:
signum = SIGINT;
break;
#endif
#ifdef SIGTERM
case CTRL_CLOSE_EVENT:
signum = SIGTERM;
break;
#endif
#ifdef SIGBREAK
case CTRL_BREAK_EVENT:
signum = SIGBREAK;
break;
#endif
default:
return FALSE;
}
if(signum) {
logmsg("ctrl_event_handler: %lu -> %d", dwCtrlType, signum);
raise(signum);
}
return TRUE;
}
#endif
#if defined(_WIN32) && !defined(CURL_WINDOWS_UWP) && !defined(UNDER_CE)
/* Window message handler for Windows applications to add support
* for graceful process termination via taskkill (without /f) which
* sends WM_CLOSE to all Windows of a process (even hidden ones).
*
* Therefore we create and run a hidden Window in a separate thread
* to receive and handle the WM_CLOSE message as SIGTERM signal.
*/
static LRESULT CALLBACK main_window_proc(HWND hwnd, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{
int signum = 0;
if(hwnd == hidden_main_window) {
switch(uMsg) {
#ifdef SIGTERM
case WM_CLOSE:
signum = SIGTERM;
break;
#endif
case WM_DESTROY:
PostQuitMessage(0);
break;
}
if(signum) {
logmsg("main_window_proc: %d -> %d", uMsg, signum);
raise(signum);
}
}
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
/* Window message queue loop for hidden main window, details see above.
*/
#include <process.h>
static unsigned int WINAPI main_window_loop(void *lpParameter)
{
WNDCLASS wc;
BOOL ret;
MSG msg;
ZeroMemory(&wc, sizeof(wc));
wc.lpfnWndProc = (WNDPROC)main_window_proc;
wc.hInstance = (HINSTANCE)lpParameter;
wc.lpszClassName = TEXT("MainWClass");
if(!RegisterClass(&wc)) {
win32_perror("RegisterClass failed");
return (DWORD)-1;
}
hidden_main_window = CreateWindowEx(0, TEXT("MainWClass"),
TEXT("Recv WM_CLOSE msg"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
(HWND)NULL, (HMENU)NULL,
wc.hInstance, (LPVOID)NULL);
if(!hidden_main_window) {
win32_perror("CreateWindowEx failed");
return (DWORD)-1;
}
do {
ret = GetMessage(&msg, NULL, 0, 0);
if(ret == -1) {
win32_perror("GetMessage failed");
return (DWORD)-1;
}
else if(ret) {
if(msg.message == WM_APP) {
DestroyWindow(hidden_main_window);
}
else if(msg.hwnd && !TranslateMessage(&msg)) {
DispatchMessage(&msg);
}
}
} while(ret);
hidden_main_window = NULL;
return (DWORD)msg.wParam;
}
#endif
#ifndef UNDER_CE
static SIGHANDLER_T set_signal(int signum, SIGHANDLER_T handler,
bool restartable)
{
#if defined(HAVE_SIGACTION) && defined(SA_RESTART)
struct sigaction sa, oldsa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = handler;
sigemptyset(&sa.sa_mask);
sigaddset(&sa.sa_mask, signum);
sa.sa_flags = restartable ? SA_RESTART : 0;
if(sigaction(signum, &sa, &oldsa))
return SIG_ERR;
return oldsa.sa_handler;
#else
SIGHANDLER_T oldhdlr = signal(signum, handler);
#ifdef HAVE_SIGINTERRUPT
if(oldhdlr != SIG_ERR)
siginterrupt(signum, (int) restartable);
#else
(void) restartable;
#endif
return oldhdlr;
#endif
}
#endif
void install_signal_handlers(bool keep_sigalrm)
{
#ifdef _WIN32
/* setup Windows exit event before any signal can trigger */
exit_event = CreateEvent(NULL, TRUE, FALSE, NULL);
if(!exit_event)
logmsg("cannot create exit event");
#endif
#ifdef SIGHUP
/* ignore SIGHUP signal */
old_sighup_handler = set_signal(SIGHUP, SIG_IGN, FALSE);
if(old_sighup_handler == SIG_ERR)
logmsg("cannot install SIGHUP handler: %s", strerror(errno));
#endif
#ifdef SIGPIPE
/* ignore SIGPIPE signal */
old_sigpipe_handler = set_signal(SIGPIPE, SIG_IGN, FALSE);
if(old_sigpipe_handler == SIG_ERR)
logmsg("cannot install SIGPIPE handler: %s", strerror(errno));
#endif
#ifdef SIGALRM
if(!keep_sigalrm) {
/* ignore SIGALRM signal */
old_sigalrm_handler = set_signal(SIGALRM, SIG_IGN, FALSE);
if(old_sigalrm_handler == SIG_ERR)
logmsg("cannot install SIGALRM handler: %s", strerror(errno));
}
#else
(void)keep_sigalrm;
#endif
#ifdef SIGINT
/* handle SIGINT signal with our exit_signal_handler */
old_sigint_handler = set_signal(SIGINT, exit_signal_handler, TRUE);
if(old_sigint_handler == SIG_ERR)
logmsg("cannot install SIGINT handler: %s", strerror(errno));
#endif
#ifdef SIGTERM
/* handle SIGTERM signal with our exit_signal_handler */
old_sigterm_handler = set_signal(SIGTERM, exit_signal_handler, TRUE);
if(old_sigterm_handler == SIG_ERR)
logmsg("cannot install SIGTERM handler: %s", strerror(errno));
#endif
#if defined(SIGBREAK) && defined(_WIN32)
/* handle SIGBREAK signal with our exit_signal_handler */
old_sigbreak_handler = set_signal(SIGBREAK, exit_signal_handler, TRUE);
if(old_sigbreak_handler == SIG_ERR)
logmsg("cannot install SIGBREAK handler: %s", strerror(errno));
#endif
#ifdef _WIN32
#ifndef UNDER_CE
if(!SetConsoleCtrlHandler(ctrl_event_handler, TRUE))
logmsg("cannot install CTRL event handler");
#endif
#if !defined(CURL_WINDOWS_UWP) && !defined(UNDER_CE)
{
typedef uintptr_t curl_win_thread_handle_t;
curl_win_thread_handle_t thread;
thread = _beginthreadex(NULL, 0, &main_window_loop,
(void *)GetModuleHandle(NULL), 0, &thread_main_id);
thread_main_window = (HANDLE)thread;
if(!thread_main_window || !thread_main_id)
logmsg("cannot start main window loop");
}
#endif
#endif
}
void restore_signal_handlers(bool keep_sigalrm)
{
#ifdef SIGHUP
if(SIG_ERR != old_sighup_handler)
(void) set_signal(SIGHUP, old_sighup_handler, FALSE);
#endif
#ifdef SIGPIPE
if(SIG_ERR != old_sigpipe_handler)
(void) set_signal(SIGPIPE, old_sigpipe_handler, FALSE);
#endif
#ifdef SIGALRM
if(!keep_sigalrm) {
if(SIG_ERR != old_sigalrm_handler)
(void) set_signal(SIGALRM, old_sigalrm_handler, FALSE);
}
#else
(void)keep_sigalrm;
#endif
#ifdef SIGINT
if(SIG_ERR != old_sigint_handler)
(void) set_signal(SIGINT, old_sigint_handler, FALSE);
#endif
#ifdef SIGTERM
if(SIG_ERR != old_sigterm_handler)
(void) set_signal(SIGTERM, old_sigterm_handler, FALSE);
#endif
#if defined(SIGBREAK) && defined(_WIN32)
if(SIG_ERR != old_sigbreak_handler)
(void) set_signal(SIGBREAK, old_sigbreak_handler, FALSE);
#endif
#ifdef _WIN32
#ifndef UNDER_CE
(void)SetConsoleCtrlHandler(ctrl_event_handler, FALSE);
#endif
#if !defined(CURL_WINDOWS_UWP) && !defined(UNDER_CE)
if(thread_main_window && thread_main_id) {
if(PostThreadMessage(thread_main_id, WM_APP, 0, 0)) {
if(WaitForSingleObjectEx(thread_main_window, INFINITE, TRUE)) {
if(CloseHandle(thread_main_window)) {
thread_main_window = NULL;
thread_main_id = 0;
}
}
}
}
if(exit_event) {
if(CloseHandle(exit_event)) {
exit_event = NULL;
}
}
#endif
#endif
}
#ifdef USE_UNIX_SOCKETS
int bind_unix_socket(curl_socket_t sock, const char *unix_socket,
struct sockaddr_un *sau)
{
int error;
int rc;
size_t len = strlen(unix_socket);
memset(sau, 0, sizeof(struct sockaddr_un));
sau->sun_family = AF_UNIX;
if(len >= sizeof(sau->sun_path) - 1) {
logmsg("Too long unix socket domain path (%zd)", len);
return -1;
}
strcpy(sau->sun_path, unix_socket);
rc = bind(sock, (struct sockaddr*)sau, sizeof(struct sockaddr_un));
if(0 != rc && SOCKERRNO == SOCKEADDRINUSE) {
struct_stat statbuf;
/* socket already exists. Perhaps it is stale? */
curl_socket_t unixfd = socket(AF_UNIX, SOCK_STREAM, 0);
if(CURL_SOCKET_BAD == unixfd) {
logmsg("Failed to create socket at %s (%d) %s",
unix_socket, SOCKERRNO, sstrerror(SOCKERRNO));
return -1;
}
/* check whether the server is alive */
rc = connect(unixfd, (struct sockaddr*)sau, sizeof(struct sockaddr_un));
error = SOCKERRNO;
sclose(unixfd);
if(0 != rc && SOCKECONNREFUSED != error) {
logmsg("Failed to connect to %s (%d) %s",
unix_socket, error, sstrerror(error));
return rc;
}
/* socket server is not alive, now check if it was actually a socket. */
#ifdef _WIN32
/* Windows does not have lstat function. */
rc = curlx_win32_stat(unix_socket, &statbuf);
#else
rc = lstat(unix_socket, &statbuf);
#endif
if(0 != rc) {
logmsg("Error binding socket, failed to stat %s (%d) %s",
unix_socket, errno, strerror(errno));
return rc;
}
#ifdef S_IFSOCK
if((statbuf.st_mode & S_IFSOCK) != S_IFSOCK) {
logmsg("Error binding socket, failed to stat %s", unix_socket);
return -1;
}
#endif
/* dead socket, cleanup and retry bind */
rc = unlink(unix_socket);
if(0 != rc) {
logmsg("Error binding socket, failed to unlink %s (%d) %s",
unix_socket, errno, strerror(errno));
return rc;
}
/* stale socket is gone, retry bind */
rc = bind(sock, (struct sockaddr*)sau, sizeof(struct sockaddr_un));
}
return rc;
}
#endif
/*
** unsigned long to unsigned short
*/
#define CURL_MASK_USHORT ((unsigned short)~0)
#define CURL_MASK_SSHORT (CURL_MASK_USHORT >> 1)
unsigned short util_ultous(unsigned long ulnum)
{
#ifdef __INTEL_COMPILER
# pragma warning(push)
# pragma warning(disable:810) /* conversion may lose significant bits */
#endif
DEBUGASSERT(ulnum <= (unsigned long) CURL_MASK_USHORT);
return (unsigned short)(ulnum & (unsigned long) CURL_MASK_USHORT);
#ifdef __INTEL_COMPILER
# pragma warning(pop)
#endif
}
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