early-access version 1255
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pineappleEA
245
externals/libressl/crypto/compat/posix_win.c
vendored
Executable file
245
externals/libressl/crypto/compat/posix_win.c
vendored
Executable file
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/*
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* Public domain
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*
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* BSD socket emulation code for Winsock2
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* File IO compatibility shims
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* Brent Cook <bcook@openbsd.org>
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* Kinichiro Inoguchi <inoguchi@openbsd.org>
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*/
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#define NO_REDEF_POSIX_FUNCTIONS
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#include <windows.h>
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#include <ws2tcpip.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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void
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posix_perror(const char *s)
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{
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fprintf(stderr, "%s: %s\n", s, strerror(errno));
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}
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FILE *
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posix_fopen(const char *path, const char *mode)
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{
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if (strchr(mode, 'b') == NULL) {
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char *bin_mode = NULL;
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if (asprintf(&bin_mode, "%sb", mode) == -1)
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return NULL;
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FILE *f = fopen(path, bin_mode);
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free(bin_mode);
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return f;
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}
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return fopen(path, mode);
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}
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int
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posix_open(const char *path, ...)
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{
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va_list ap;
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int mode = 0;
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int flags;
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va_start(ap, path);
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flags = va_arg(ap, int);
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if (flags & O_CREAT)
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mode = va_arg(ap, int);
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va_end(ap);
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flags |= O_BINARY;
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if (flags & O_CLOEXEC) {
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flags &= ~O_CLOEXEC;
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flags |= O_NOINHERIT;
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}
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flags &= ~O_NONBLOCK;
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return open(path, flags, mode);
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}
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char *
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posix_fgets(char *s, int size, FILE *stream)
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{
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char *ret = fgets(s, size, stream);
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if (ret != NULL) {
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size_t end = strlen(ret);
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if (end >= 2 && ret[end - 2] == '\r' && ret[end - 1] == '\n') {
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ret[end - 2] = '\n';
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ret[end - 1] = '\0';
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}
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}
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return ret;
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}
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int
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posix_rename(const char *oldpath, const char *newpath)
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{
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return MoveFileEx(oldpath, newpath, MOVEFILE_REPLACE_EXISTING) ? 0 : -1;
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}
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static int
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wsa_errno(int err)
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{
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switch (err) {
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case WSAENOBUFS:
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errno = ENOMEM;
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break;
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case WSAEACCES:
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errno = EACCES;
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break;
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case WSANOTINITIALISED:
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errno = EPERM;
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break;
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case WSAEHOSTUNREACH:
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case WSAENETDOWN:
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errno = EIO;
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break;
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case WSAEFAULT:
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errno = EFAULT;
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break;
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case WSAEINTR:
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errno = EINTR;
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break;
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case WSAEINVAL:
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errno = EINVAL;
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break;
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case WSAEINPROGRESS:
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errno = EINPROGRESS;
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break;
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case WSAEWOULDBLOCK:
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errno = EAGAIN;
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break;
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case WSAEOPNOTSUPP:
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errno = ENOTSUP;
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break;
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case WSAEMSGSIZE:
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errno = EFBIG;
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break;
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case WSAENOTSOCK:
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errno = ENOTSOCK;
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break;
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case WSAENOPROTOOPT:
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errno = ENOPROTOOPT;
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break;
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case WSAECONNREFUSED:
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errno = ECONNREFUSED;
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break;
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case WSAEAFNOSUPPORT:
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errno = EAFNOSUPPORT;
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break;
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case WSAEBADF:
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errno = EBADF;
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break;
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case WSAENETRESET:
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case WSAENOTCONN:
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case WSAECONNABORTED:
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case WSAECONNRESET:
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case WSAESHUTDOWN:
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case WSAETIMEDOUT:
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errno = EPIPE;
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break;
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}
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return -1;
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}
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int
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posix_connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen)
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{
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int rc = connect(sockfd, addr, addrlen);
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if (rc == SOCKET_ERROR)
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return wsa_errno(WSAGetLastError());
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return rc;
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}
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int
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posix_close(int fd)
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{
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if (closesocket(fd) == SOCKET_ERROR) {
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int err = WSAGetLastError();
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return (err == WSAENOTSOCK || err == WSAEBADF ||
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err == WSANOTINITIALISED) ?
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close(fd) : wsa_errno(err);
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}
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return 0;
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}
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ssize_t
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posix_read(int fd, void *buf, size_t count)
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{
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ssize_t rc = recv(fd, buf, count, 0);
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if (rc == SOCKET_ERROR) {
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int err = WSAGetLastError();
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return (err == WSAENOTSOCK || err == WSAEBADF ||
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err == WSANOTINITIALISED) ?
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read(fd, buf, count) : wsa_errno(err);
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}
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return rc;
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}
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ssize_t
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posix_write(int fd, const void *buf, size_t count)
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{
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ssize_t rc = send(fd, buf, count, 0);
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if (rc == SOCKET_ERROR) {
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int err = WSAGetLastError();
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return (err == WSAENOTSOCK || err == WSAEBADF ||
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err == WSANOTINITIALISED) ?
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write(fd, buf, count) : wsa_errno(err);
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}
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return rc;
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}
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int
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posix_getsockopt(int sockfd, int level, int optname,
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void *optval, socklen_t *optlen)
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{
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int rc = getsockopt(sockfd, level, optname, (char *)optval, optlen);
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return rc == 0 ? 0 : wsa_errno(WSAGetLastError());
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}
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int
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posix_setsockopt(int sockfd, int level, int optname,
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const void *optval, socklen_t optlen)
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{
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int rc = setsockopt(sockfd, level, optname, (char *)optval, optlen);
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return rc == 0 ? 0 : wsa_errno(WSAGetLastError());
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}
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uid_t getuid(void)
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{
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/* Windows fstat sets 0 as st_uid */
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return 0;
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}
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#ifdef _MSC_VER
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struct timezone;
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int gettimeofday(struct timeval * tp, struct timezone * tzp)
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{
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/*
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* Note: some broken versions only have 8 trailing zero's, the correct
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* epoch has 9 trailing zero's
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*/
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static const uint64_t EPOCH = ((uint64_t) 116444736000000000ULL);
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SYSTEMTIME system_time;
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FILETIME file_time;
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uint64_t time;
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GetSystemTime(&system_time);
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SystemTimeToFileTime(&system_time, &file_time);
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time = ((uint64_t)file_time.dwLowDateTime);
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time += ((uint64_t)file_time.dwHighDateTime) << 32;
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tp->tv_sec = (long)((time - EPOCH) / 10000000L);
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tp->tv_usec = (long)(system_time.wMilliseconds * 1000);
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return 0;
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}
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#endif
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