/* This file contains functions which implement those POSIX and Linux functions
* that MinGW and Microsoft don't provide. The implementations contain just enough
* functionality to support fio.
*/
#include <arpa/inet.h>
#include <netinet/in.h>
#include <windows.h>
#include <stddef.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <dirent.h>
#include <pthread.h>
#include <time.h>
#include <semaphore.h>
#include <sys/shm.h>
#include <sys/mman.h>
#include <sys/uio.h>
#include <sys/resource.h>
#include <sys/poll.h>
#include <sys/wait.h>
#include <setjmp.h>
#include "../os-windows.h"
#include "../../lib/hweight.h"
extern unsigned long mtime_since_now(struct timeval *);
extern void fio_gettime(struct timeval *, void *);
/* These aren't defined in the MinGW headers */
HRESULT WINAPI StringCchCopyA(
char *pszDest,
size_t cchDest,
const char *pszSrc);
HRESULT WINAPI StringCchPrintfA(
char *pszDest,
size_t cchDest,
const char *pszFormat,
...);
int vsprintf_s(
char *buffer,
size_t numberOfElements,
const char *format,
va_list argptr);
int win_to_posix_error(DWORD winerr)
{
switch (winerr)
{
case ERROR_FILE_NOT_FOUND: return ENOENT;
case ERROR_PATH_NOT_FOUND: return ENOENT;
case ERROR_ACCESS_DENIED: return EACCES;
case ERROR_INVALID_HANDLE: return EBADF;
case ERROR_NOT_ENOUGH_MEMORY: return ENOMEM;
case ERROR_INVALID_DATA: return EINVAL;
case ERROR_OUTOFMEMORY: return ENOMEM;
case ERROR_INVALID_DRIVE: return ENODEV;
case ERROR_NOT_SAME_DEVICE: return EXDEV;
case ERROR_WRITE_PROTECT: return EROFS;
case ERROR_BAD_UNIT: return ENODEV;
case ERROR_SHARING_VIOLATION: return EACCES;
case ERROR_LOCK_VIOLATION: return EACCES;
case ERROR_SHARING_BUFFER_EXCEEDED: return ENOLCK;
case ERROR_HANDLE_DISK_FULL: return ENOSPC;
case ERROR_NOT_SUPPORTED: return ENOSYS;
case ERROR_FILE_EXISTS: return EEXIST;
case ERROR_CANNOT_MAKE: return EPERM;
case ERROR_INVALID_PARAMETER: return EINVAL;
case ERROR_NO_PROC_SLOTS: return EAGAIN;
case ERROR_BROKEN_PIPE: return EPIPE;
case ERROR_OPEN_FAILED: return EIO;
case ERROR_NO_MORE_SEARCH_HANDLES: return ENFILE;
case ERROR_CALL_NOT_IMPLEMENTED: return ENOSYS;
case ERROR_INVALID_NAME: return ENOENT;
case ERROR_WAIT_NO_CHILDREN: return ECHILD;
case ERROR_CHILD_NOT_COMPLETE: return EBUSY;
case ERROR_DIR_NOT_EMPTY: return ENOTEMPTY;
case ERROR_SIGNAL_REFUSED: return EIO;
case ERROR_BAD_PATHNAME: return ENOENT;
case ERROR_SIGNAL_PENDING: return EBUSY;
case ERROR_MAX_THRDS_REACHED: return EAGAIN;
case ERROR_BUSY: return EBUSY;
case ERROR_ALREADY_EXISTS: return EEXIST;
case ERROR_NO_SIGNAL_SENT: return EIO;
case ERROR_FILENAME_EXCED_RANGE: return EINVAL;
case ERROR_META_EXPANSION_TOO_LONG: return EINVAL;
case ERROR_INVALID_SIGNAL_NUMBER: return EINVAL;
case ERROR_THREAD_1_INACTIVE: return EINVAL;
case ERROR_BAD_PIPE: return EINVAL;
case ERROR_PIPE_BUSY: return EBUSY;
case ERROR_NO_DATA: return EPIPE;
case ERROR_MORE_DATA: return EAGAIN;
case ERROR_DIRECTORY: return ENOTDIR;
case ERROR_PIPE_CONNECTED: return EBUSY;
case ERROR_NO_TOKEN: return EINVAL;
case ERROR_PROCESS_ABORTED: return EFAULT;
case ERROR_BAD_DEVICE: return ENODEV;
case ERROR_BAD_USERNAME: return EINVAL;
case ERROR_OPEN_FILES: return EAGAIN;
case ERROR_ACTIVE_CONNECTIONS: return EAGAIN;
case ERROR_DEVICE_IN_USE: return EAGAIN;
case ERROR_INVALID_AT_INTERRUPT_TIME: return EINTR;
case ERROR_IO_DEVICE: return EIO;
case ERROR_NOT_OWNER: return EPERM;
case ERROR_END_OF_MEDIA: return ENOSPC;
case ERROR_EOM_OVERFLOW: return ENOSPC;
case ERROR_BEGINNING_OF_MEDIA: return ESPIPE;
case ERROR_SETMARK_DETECTED: return ESPIPE;
case ERROR_NO_DATA_DETECTED: return ENOSPC;
case ERROR_POSSIBLE_DEADLOCK: return EDEADLOCK;
case ERROR_CRC: return EIO;
case ERROR_NEGATIVE_SEEK: return EINVAL;
case ERROR_DISK_FULL: return ENOSPC;
case ERROR_NOACCESS: return EFAULT;
case ERROR_FILE_INVALID: return ENXIO;
}
return winerr;
}
int GetNumLogicalProcessors(void)
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION *processor_info = NULL;
DWORD len = 0;
DWORD num_processors = 0;
DWORD error = 0;
DWORD i;
while (!GetLogicalProcessorInformation(processor_info, &len)) {
error = GetLastError();
if (error == ERROR_INSUFFICIENT_BUFFER)
processor_info = malloc(len);
else {
log_err("Error: GetLogicalProcessorInformation failed: %d\n", error);
return -1;
}
if (processor_info == NULL) {
log_err("Error: failed to allocate memory for GetLogicalProcessorInformation");
return -1;
}
}
for (i = 0; i < len / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); i++)
{
if (processor_info[i].Relationship == RelationProcessorCore)
num_processors += hweight64(processor_info[i].ProcessorMask);
}
free(processor_info);
return num_processors;
}
long sysconf(int name)
{
long val = -1;
long val2 = -1;
SYSTEM_INFO sysInfo;
MEMORYSTATUSEX status;
switch (name)
{
case _SC_NPROCESSORS_ONLN:
val = GetNumLogicalProcessors();
if (val == -1)
log_err("sysconf(_SC_NPROCESSORS_ONLN) failed\n");
break;
case _SC_PAGESIZE:
GetSystemInfo(&sysInfo);
val = sysInfo.dwPageSize;
break;
case _SC_PHYS_PAGES:
status.dwLength = sizeof(status);
val2 = sysconf(_SC_PAGESIZE);
if (GlobalMemoryStatusEx(&status) && val2 != -1)
val = status.ullTotalPhys / val2;
else
log_err("sysconf(_SC_PHYS_PAGES) failed\n");
break;
default:
log_err("sysconf(%d) is not implemented\n", name);
break;
}
return val;
}
char *dl_error = NULL;
int dlclose(void *handle)
{
return !FreeLibrary((HMODULE)handle);
}
void *dlopen(const char *file, int mode)
{
HMODULE hMod;
hMod = LoadLibrary(file);
if (hMod == INVALID_HANDLE_VALUE)
dl_error = (char*)"LoadLibrary failed";
else
dl_error = NULL;
return hMod;
}
void *dlsym(void *handle, const char *name)
{
FARPROC fnPtr;
fnPtr = GetProcAddress((HMODULE)handle, name);
if (fnPtr == NULL)
dl_error = (char*)"GetProcAddress failed";
else
dl_error = NULL;
return fnPtr;
}
char *dlerror(void)
{
return dl_error;
}
int gettimeofday(struct timeval *restrict tp, void *restrict tzp)
{
FILETIME fileTime;
uint64_t unix_time, windows_time;
const uint64_t MILLISECONDS_BETWEEN_1601_AND_1970 = 11644473600000;
/* Ignore the timezone parameter */
(void)tzp;
/*
* Windows time is stored as the number 100 ns intervals since January 1 1601.
* Conversion details from http://www.informit.com/articles/article.aspx?p=102236&seqNum=3
* Its precision is 100 ns but accuracy is only one clock tick, or normally around 15 ms.
*/
GetSystemTimeAsFileTime(&fileTime);
windows_time = ((uint64_t)fileTime.dwHighDateTime << 32) + fileTime.dwLowDateTime;
/* Divide by 10,000 to convert to ms and subtract the time between 1601 and 1970 */
unix_time = (((windows_time)/10000) - MILLISECONDS_BETWEEN_1601_AND_1970);
/* unix_time is now the number of milliseconds since 1970 (the Unix epoch) */
tp->tv_sec = unix_time / 1000;
tp->tv_usec = (unix_time % 1000) * 1000;
return 0;
}
int sigaction(int sig, const struct sigaction *act,
struct sigaction *oact)
{
int rc = 0;
void (*prev_handler)(int);
prev_handler = signal(sig, act->sa_handler);
if (oact != NULL)
oact->sa_handler = prev_handler;
if (prev_handler == SIG_ERR)
rc = -1;
return rc;
}
int lstat(const char * path, struct stat * buf)
{
return stat(path, buf);
}
void *mmap(void *addr, size_t len, int prot, int flags,
int fildes, off_t off)
{
DWORD vaProt = 0;
void* allocAddr = NULL;
if (prot & PROT_NONE)
vaProt |= PAGE_NOACCESS;
if ((prot & PROT_READ) && !(prot & PROT_WRITE))
vaProt |= PAGE_READONLY;
if (prot & PROT_WRITE)
vaProt |= PAGE_READWRITE;
if ((flags & MAP_ANON) | (flags & MAP_ANONYMOUS))
{
allocAddr = VirtualAlloc(addr, len, MEM_COMMIT, vaProt);
if (allocAddr == NULL)
errno = win_to_posix_error(GetLastError());
}
return allocAddr;
}
int munmap(void *addr, size_t len)
{
if (!VirtualFree(addr, 0, MEM_RELEASE)) {
errno = win_to_posix_error(GetLastError());
return -1;
}
return 0;
}
int fork(void)
{
log_err("%s is not implemented\n", __func__);
errno = ENOSYS;
return -1;
}
pid_t setsid(void)
{
log_err("%s is not implemented\n", __func__);
errno = ENOSYS;
return -1;
}
static HANDLE log_file = INVALID_HANDLE_VALUE;
void openlog(const char *ident, int logopt, int facility)
{
if (log_file == INVALID_HANDLE_VALUE)
log_file = CreateFileA("syslog.txt", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL);
}
void closelog(void)
{
CloseHandle(log_file);
log_file = INVALID_HANDLE_VALUE;
}
void syslog(int priority, const char *message, ... /* argument */)
{
va_list v;
int len;
char *output;
DWORD bytes_written;
if (log_file == INVALID_HANDLE_VALUE) {
log_file = CreateFileA("syslog.txt", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, 0, NULL);
}
if (log_file == INVALID_HANDLE_VALUE) {
log_err("syslog: failed to open log file\n");
return;
}
va_start(v, message);
len = _vscprintf(message, v);
output = malloc(len + sizeof(char));
vsprintf(output, message, v);
WriteFile(log_file, output, len, &bytes_written, NULL);
va_end(v);
free(output);
}
int kill(pid_t pid, int sig)
{
errno = ESRCH;
return -1;
}
/*
* This is assumed to be used only by the network code,
* and so doesn't try and handle any of the other cases
*/
int fcntl(int fildes, int cmd, ...)
{
/*
* non-blocking mode doesn't work the same as in BSD sockets,
* so ignore it.
*/
#if 0
va_list ap;
int val, opt, status;
if (cmd == F_GETFL)
return 0;
else if (cmd != F_SETFL) {
errno = EINVAL;
return -1;
}
va_start(ap, 1);
opt = va_arg(ap, int);
if (opt & O_NONBLOCK)
val = 1;
else
val = 0;
status = ioctlsocket((SOCKET)fildes, opt, &val);
if (status == SOCKET_ERROR) {
errno = EINVAL;
val = -1;
}
va_end(ap);
return val;
#endif
return 0;
}
/*
* Get the value of a local clock source.
* This implementation supports 2 clocks: CLOCK_MONOTONIC provides high-accuracy
* relative time, while CLOCK_REALTIME provides a low-accuracy wall time.
*/
int clock_gettime(clockid_t clock_id, struct timespec *tp)
{
int rc = 0;
if (clock_id == CLOCK_MONOTONIC)
{
static LARGE_INTEGER freq = {{0,0}};
LARGE_INTEGER counts;
uint64_t t;
QueryPerformanceCounter(&counts);
if (freq.QuadPart == 0)
QueryPerformanceFrequency(&freq);
tp->tv_sec = counts.QuadPart / freq.QuadPart;
/* Get the difference between the number of ns stored
* in 'tv_sec' and that stored in 'counts' */
t = tp->tv_sec * freq.QuadPart;
t = counts.QuadPart - t;
/* 't' now contains the number of cycles since the last second.
* We want the number of nanoseconds, so multiply out by 1,000,000,000
* and then divide by the frequency. */
t *= 1000000000;
tp->tv_nsec = t / freq.QuadPart;
}
else if (clock_id == CLOCK_REALTIME)
{
/* clock_gettime(CLOCK_REALTIME,...) is just an alias for gettimeofday with a
* higher-precision field. */
struct timeval tv;
gettimeofday(&tv, NULL);
tp->tv_sec = tv.tv_sec;
tp->tv_nsec = tv.tv_usec * 1000;
} else {
errno = EINVAL;
rc = -1;
}
return rc;
}
int mlock(const void * addr, size_t len)
{
SIZE_T min, max;
BOOL success;
HANDLE process = GetCurrentProcess();
success = GetProcessWorkingSetSize(process, &min, &max);
if (!success) {
errno = win_to_posix_error(GetLastError());
return -1;
}
min += len;
max += len;
success = SetProcessWorkingSetSize(process, min, max);
if (!success) {
errno = win_to_posix_error(GetLastError());
return -1;
}
success = VirtualLock((LPVOID)addr, len);
if (!success) {
errno = win_to_posix_error(GetLastError());
return -1;
}
return 0;
}
int munlock(const void * addr, size_t len)
{
BOOL success = VirtualUnlock((LPVOID)addr, len);
if (!success) {
errno = win_to_posix_error(GetLastError());
return -1;
}
return 0;
}
pid_t waitpid(pid_t pid, int *stat_loc, int options)
{
log_err("%s is not implemented\n", __func__);
errno = ENOSYS;
return -1;
}
int usleep(useconds_t useconds)
{
Sleep(useconds / 1000);
return 0;
}
char *basename(char *path)
{
static char name[MAX_PATH];
int i;
if (path == NULL || strlen(path) == 0)
return (char*)".";
i = strlen(path) - 1;
while (path[i] != '\\' && path[i] != '/' && i >= 0)
i--;
strncpy(name, path + i + 1, MAX_PATH);
return name;
}
int fsync(int fildes)
{
HANDLE hFile = (HANDLE)_get_osfhandle(fildes);
if (!FlushFileBuffers(hFile)) {
errno = win_to_posix_error(GetLastError());
return -1;
}
return 0;
}
int nFileMappings = 0;
HANDLE fileMappings[1024];
int shmget(key_t key, size_t size, int shmflg)
{
int mapid = -1;
uint32_t size_low = size & 0xFFFFFFFF;
uint32_t size_high = ((uint64_t)size) >> 32;
HANDLE hMapping = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, (PAGE_EXECUTE_READWRITE | SEC_RESERVE), size_high, size_low, NULL);
if (hMapping != NULL) {
fileMappings[nFileMappings] = hMapping;
mapid = nFileMappings;
nFileMappings++;
} else {
errno = ENOSYS;
}
return mapid;
}
void *shmat(int shmid, const void *shmaddr, int shmflg)
{
void* mapAddr;
MEMORY_BASIC_INFORMATION memInfo;
mapAddr = MapViewOfFile(fileMappings[shmid], FILE_MAP_ALL_ACCESS, 0, 0, 0);
if (mapAddr == NULL) {
errno = win_to_posix_error(GetLastError());
return (void*)-1;
}
if (VirtualQuery(mapAddr, &memInfo, sizeof(memInfo)) == 0) {
errno = win_to_posix_error(GetLastError());
return (void*)-1;
}
mapAddr = VirtualAlloc(mapAddr, memInfo.RegionSize, MEM_COMMIT, PAGE_READWRITE);
if (mapAddr == NULL) {
errno = win_to_posix_error(GetLastError());
return (void*)-1;
}
return mapAddr;
}
int shmdt(const void *shmaddr)
{
if (!UnmapViewOfFile(shmaddr)) {
errno = win_to_posix_error(GetLastError());
return -1;
}
return 0;
}
int shmctl(int shmid, int cmd, struct shmid_ds *buf)
{
if (cmd == IPC_RMID) {
fileMappings[shmid] = INVALID_HANDLE_VALUE;
return 0;
} else {
log_err("%s is not implemented\n", __func__);
}
errno = ENOSYS;
return -1;
}
int setuid(uid_t uid)
{
log_err("%s is not implemented\n", __func__);
errno = ENOSYS;
return -1;
}
int setgid(gid_t gid)
{
log_err("%s is not implemented\n", __func__);
errno = ENOSYS;
return -1;
}
int nice(int incr)
{
if (incr != 0) {
errno = EINVAL;
return -1;
}
return 0;
}
int getrusage(int who, struct rusage *r_usage)
{
const uint64_t SECONDS_BETWEEN_1601_AND_1970 = 11644473600;
FILETIME cTime, eTime, kTime, uTime;
time_t time;
HANDLE h;
memset(r_usage, 0, sizeof(*r_usage));
if (who == RUSAGE_SELF) {
h = GetCurrentProcess();
GetProcessTimes(h, &cTime, &eTime, &kTime, &uTime);
} else if (who == RUSAGE_THREAD) {
h = GetCurrentThread();
GetThreadTimes(h, &cTime, &eTime, &kTime, &uTime);
} else {
log_err("fio: getrusage %d is not implemented\n", who);
return -1;
}
time = ((uint64_t)uTime.dwHighDateTime << 32) + uTime.dwLowDateTime;
/* Divide by 10,000,000 to get the number of seconds and move the epoch from
* 1601 to 1970 */
time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970);
r_usage->ru_utime.tv_sec = time;
/* getrusage() doesn't care about anything other than seconds, so set tv_usec to 0 */
r_usage->ru_utime.tv_usec = 0;
time = ((uint64_t)kTime.dwHighDateTime << 32) + kTime.dwLowDateTime;
/* Divide by 10,000,000 to get the number of seconds and move the epoch from
* 1601 to 1970 */
time = (time_t)(((time)/10000000) - SECONDS_BETWEEN_1601_AND_1970);
r_usage->ru_stime.tv_sec = time;
r_usage->ru_stime.tv_usec = 0;
return 0;
}
int posix_madvise(void *addr, size_t len, int advice)
{
log_err("%s is not implemented\n", __func__);
return ENOSYS;
}
/* Windows doesn't support advice for memory pages. Just ignore it. */
int msync(void *addr, size_t len, int flags)
{
errno = ENOSYS;
return -1;
}
int fdatasync(int fildes)
{
return fsync(fildes);
}
ssize_t pwrite(int fildes, const void *buf, size_t nbyte,
off_t offset)
{
int64_t pos = _telli64(fildes);
ssize_t len = _write(fildes, buf, nbyte);
_lseeki64(fildes, pos, SEEK_SET);
return len;
}
ssize_t pread(int fildes, void *buf, size_t nbyte, off_t offset)
{
int64_t pos = _telli64(fildes);
ssize_t len = read(fildes, buf, nbyte);
_lseeki64(fildes, pos, SEEK_SET);
return len;
}
ssize_t readv(int fildes, const struct iovec *iov, int iovcnt)
{
log_err("%s is not implemented\n", __func__);
errno = ENOSYS;
return -1;
}
ssize_t writev(int fildes, const struct iovec *iov, int iovcnt)
{
int i;
DWORD bytes_written = 0;
for (i = 0; i < iovcnt; i++)
{
int len = send((SOCKET)fildes, iov[i].iov_base, iov[i].iov_len, 0);
if (len == SOCKET_ERROR)
{
DWORD err = GetLastError();
errno = win_to_posix_error(err);
bytes_written = -1;
break;
}
bytes_written += len;
}
return bytes_written;
}
long long strtoll(const char *restrict str, char **restrict endptr,
int base)
{
return _strtoi64(str, endptr, base);
}
int poll(struct pollfd fds[], nfds_t nfds, int timeout)
{
struct timeval tv;
struct timeval *to = NULL;
fd_set readfds, writefds, exceptfds;
int i;
int rc;
if (timeout != -1) {
to = &tv;
to->tv_sec = timeout / 1000;
to->tv_usec = (timeout % 1000) * 1000;
}
FD_ZERO(&readfds);
FD_ZERO(&writefds);
FD_ZERO(&exceptfds);
for (i = 0; i < nfds; i++)
{
if (fds[i].fd < 0) {
fds[i].revents = 0;
continue;
}
if (fds[i].events & POLLIN)
FD_SET(fds[i].fd, &readfds);
if (fds[i].events & POLLOUT)
FD_SET(fds[i].fd, &writefds);
FD_SET(fds[i].fd, &exceptfds);
}
rc = select(nfds, &readfds, &writefds, &exceptfds, to);
if (rc != SOCKET_ERROR) {
for (i = 0; i < nfds; i++)
{
if (fds[i].fd < 0) {
continue;
}
if ((fds[i].events & POLLIN) && FD_ISSET(fds[i].fd, &readfds))
fds[i].revents |= POLLIN;
if ((fds[i].events & POLLOUT) && FD_ISSET(fds[i].fd, &writefds))
fds[i].revents |= POLLOUT;
if (FD_ISSET(fds[i].fd, &exceptfds))
fds[i].revents |= POLLHUP;
}
}
return rc;
}
int nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
{
struct timeval tv;
DWORD ms_remaining;
DWORD ms_total = (rqtp->tv_sec * 1000) + (rqtp->tv_nsec / 1000000.0);
if (ms_total == 0)
ms_total = 1;
ms_remaining = ms_total;
/* Since Sleep() can sleep for less than the requested time, add a loop to
ensure we only return after the requested length of time has elapsed */
do {
fio_gettime(&tv, NULL);
Sleep(ms_remaining);
ms_remaining = ms_total - mtime_since_now(&tv);
} while (ms_remaining > 0 && ms_remaining < ms_total);
/* this implementation will never sleep for less than the requested time */
if (rmtp != NULL) {
rmtp->tv_sec = 0;
rmtp->tv_nsec = 0;
}
return 0;
}
DIR *opendir(const char *dirname)
{
struct dirent_ctx *dc = NULL;
/* See if we can open it. If not, we'll return an error here */
HANDLE file = CreateFileA(dirname, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (file != INVALID_HANDLE_VALUE) {
CloseHandle(file);
dc = (struct dirent_ctx*)malloc(sizeof(struct dirent_ctx));
StringCchCopyA(dc->dirname, MAX_PATH, dirname);
dc->find_handle = INVALID_HANDLE_VALUE;
} else {
DWORD error = GetLastError();
if (error == ERROR_FILE_NOT_FOUND)
errno = ENOENT;
else if (error == ERROR_PATH_NOT_FOUND)
errno = ENOTDIR;
else if (error == ERROR_TOO_MANY_OPEN_FILES)
errno = ENFILE;
else if (error == ERROR_ACCESS_DENIED)
errno = EACCES;
else
errno = error;
}
return dc;
}
int closedir(DIR *dirp)
{
if (dirp != NULL && dirp->find_handle != INVALID_HANDLE_VALUE)
FindClose(dirp->find_handle);
free(dirp);
return 0;
}
struct dirent *readdir(DIR *dirp)
{
static struct dirent de;
WIN32_FIND_DATA find_data;
if (dirp == NULL)
return NULL;
if (dirp->find_handle == INVALID_HANDLE_VALUE) {
char search_pattern[MAX_PATH];
StringCchPrintfA(search_pattern, MAX_PATH, "%s\\*", dirp->dirname);
dirp->find_handle = FindFirstFileA(search_pattern, &find_data);
if (dirp->find_handle == INVALID_HANDLE_VALUE)
return NULL;
} else {
if (!FindNextFile(dirp->find_handle, &find_data))
return NULL;
}
StringCchCopyA(de.d_name, MAX_PATH, find_data.cFileName);
de.d_ino = 0;
return &de;
}
uid_t geteuid(void)
{
log_err("%s is not implemented\n", __func__);
errno = ENOSYS;
return -1;
}
in_addr_t inet_network(const char *cp)
{
in_addr_t hbo;
in_addr_t nbo = inet_addr(cp);
hbo = ((nbo & 0xFF) << 24) + ((nbo & 0xFF00) << 8) + ((nbo & 0xFF0000) >> 8) + ((nbo & 0xFF000000) >> 24);
return hbo;
}
const char* inet_ntop(int af, const void *restrict src,
char *restrict dst, socklen_t size)
{
INT status = SOCKET_ERROR;
WSADATA wsd;
char *ret = NULL;
if (af != AF_INET && af != AF_INET6) {
errno = EAFNOSUPPORT;
return NULL;
}
WSAStartup(MAKEWORD(2,2), &wsd);
if (af == AF_INET) {
struct sockaddr_in si;
DWORD len = size;
memset(&si, 0, sizeof(si));
si.sin_family = af;
memcpy(&si.sin_addr, src, sizeof(si.sin_addr));
status = WSAAddressToString((struct sockaddr*)&si, sizeof(si), NULL, dst, &len);
} else if (af == AF_INET6) {
struct sockaddr_in6 si6;
DWORD len = size;
memset(&si6, 0, sizeof(si6));
si6.sin6_family = af;
memcpy(&si6.sin6_addr, src, sizeof(si6.sin6_addr));
status = WSAAddressToString((struct sockaddr*)&si6, sizeof(si6), NULL, dst, &len);
}
if (status != SOCKET_ERROR)
ret = dst;
else
errno = ENOSPC;
WSACleanup();
return ret;
}
int inet_pton(int af, const char *restrict src, void *restrict dst)
{
INT status = SOCKET_ERROR;
WSADATA wsd;
int ret = 1;
if (af != AF_INET && af != AF_INET6) {
errno = EAFNOSUPPORT;
return -1;
}
WSAStartup(MAKEWORD(2,2), &wsd);
if (af == AF_INET) {
struct sockaddr_in si;
INT len = sizeof(si);
memset(&si, 0, sizeof(si));
si.sin_family = af;
status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si, &len);
if (status != SOCKET_ERROR)
memcpy(dst, &si.sin_addr, sizeof(si.sin_addr));
} else if (af == AF_INET6) {
struct sockaddr_in6 si6;
INT len = sizeof(si6);
memset(&si6, 0, sizeof(si6));
si6.sin6_family = af;
status = WSAStringToAddressA((char*)src, af, NULL, (struct sockaddr*)&si6, &len);
if (status != SOCKET_ERROR)
memcpy(dst, &si6.sin6_addr, sizeof(si6.sin6_addr));
}
if (status == SOCKET_ERROR) {
errno = ENOSPC;
ret = 0;
}
WSACleanup();
return ret;
}