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refactor win32 shims into posix_win.c

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this also adds a rename shim that allows overwrites
This commit is contained in:
Brent Cook 2015-06-05 04:31:56 -05:00 committed by Brent Cook
parent 1d27b22e82
commit b4a6a61513
5 changed files with 191 additions and 151 deletions
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1
.gitignore vendored
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@ -116,6 +116,7 @@ include/openssl/*.he
!/crypto/Makefile.am.*
!/crypto/compat/arc4random.h
!/crypto/compat/b_win.c
!/crypto/compat/posix_win.c
!/crypto/compat/bsd_asprintf.c
!/crypto/compat/ui_openssl_win.c

4
crypto/Makefile.am
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@ -65,6 +65,10 @@ if !HAVE_TIMINGSAFE_BCMP
libcompat_la_SOURCES += compat/timingsafe_bcmp.c
endif
if HOST_WIN
libcompat_la_SOURCES += compat/posix_win.c
endif
include Makefile.am.arc4random
libcrypto_la_SOURCES =

167
crypto/compat/posix_win.c Normal file
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@ -0,0 +1,167 @@
/*
* Public domain
*
* BSD socket emulation code for Winsock2
* File IO compatibility shims
* Brent Cook <bcook@openbsd.org>
*/
#define NO_REDEF_POSIX_FUNCTIONS
#include <windows.h>
#include <ws2tcpip.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
void
posix_perror(const char *s)
{
fprintf(stderr, "%s: %s\n", s, strerror(errno));
}
FILE *
posix_fopen(const char *path, const char *mode)
{
if (strchr(mode, 'b') == NULL) {
char *bin_mode = NULL;
if (asprintf(&bin_mode, "%sb", mode) == -1)
return NULL;
FILE *f = fopen(path, bin_mode);
free(bin_mode);
return f;
}
return fopen(path, mode);
}
int
posix_rename(const char *oldpath, const char *newpath)
{
MoveFileEx(oldpath, newpath, MOVEFILE_REPLACE_EXISTING) ? 0 : -1;
}
static int
wsa_errno(int err)
{
switch (err) {
case WSAENOBUFS:
errno = ENOMEM;
break;
case WSAEACCES:
errno = EACCES;
break;
case WSANOTINITIALISED:
errno = EPERM;
break;
case WSAEHOSTUNREACH:
case WSAENETDOWN:
errno = EIO;
break;
case WSAEFAULT:
errno = EFAULT;
break;
case WSAEINTR:
errno = EINTR;
break;
case WSAEINVAL:
errno = EINVAL;
break;
case WSAEINPROGRESS:
errno = EINPROGRESS;
break;
case WSAEWOULDBLOCK:
errno = EAGAIN;
break;
case WSAEOPNOTSUPP:
errno = ENOTSUP;
break;
case WSAEMSGSIZE:
errno = EFBIG;
break;
case WSAENOTSOCK:
errno = ENOTSOCK;
break;
case WSAENOPROTOOPT:
errno = ENOPROTOOPT;
break;
case WSAECONNREFUSED:
errno = ECONNREFUSED;
break;
case WSAEAFNOSUPPORT:
errno = EAFNOSUPPORT;
break;
case WSAENETRESET:
case WSAENOTCONN:
case WSAECONNABORTED:
case WSAECONNRESET:
case WSAESHUTDOWN:
case WSAETIMEDOUT:
errno = EPIPE;
break;
}
return -1;
}
int
posix_connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen)
{
int rc = connect(sockfd, addr, addrlen);
if (rc == SOCKET_ERROR)
return wsa_errno(WSAGetLastError());
return rc;
}
int
posix_close(int fd)
{
if (closesocket(fd) == SOCKET_ERROR) {
int err = WSAGetLastError();
return err == WSAENOTSOCK ?
close(fd) : wsa_errno(err);
}
return 0;
}
ssize_t
posix_read(int fd, void *buf, size_t count)
{
ssize_t rc = recv(fd, buf, count, 0);
if (rc == SOCKET_ERROR) {
int err = WSAGetLastError();
return err == WSAENOTSOCK ?
read(fd, buf, count) : wsa_errno(err);
}
return rc;
}
ssize_t
posix_write(int fd, const void *buf, size_t count)
{
ssize_t rc = send(fd, buf, count, 0);
if (rc == SOCKET_ERROR) {
int err = WSAGetLastError();
return err == WSAENOTSOCK ?
write(fd, buf, count) : wsa_errno(err);
}
return rc;
}
int
posix_getsockopt(int sockfd, int level, int optname,
void *optval, socklen_t *optlen)
{
int rc = getsockopt(sockfd, level, optname, (char *)optval, optlen);
return rc == 0 ? 0 : wsa_errno(WSAGetLastError());
}
int
posix_setsockopt(int sockfd, int level, int optname,
const void *optval, socklen_t optlen)
{
int rc = setsockopt(sockfd, level, optname, (char *)optval, optlen);
return rc == 0 ? 0 : wsa_errno(WSAGetLastError());
}

31
include/stdio.h
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@ -15,35 +15,16 @@ int asprintf(char **str, const char *fmt, ...);
#endif
#ifdef _WIN32
#include <errno.h>
#include <string.h>
static inline void
posix_perror(const char *s)
{
fprintf(stderr, "%s: %s\n", s, strerror(errno));
}
void posix_perror(const char *s);
FILE * posix_fopen(const char *path, const char *mode);
int posix_rename(const char *oldpath, const char *newpath);
#ifndef NO_REDEF_POSIX_FUNCTIONS
#define perror(errnum) posix_perror(errnum)
static inline FILE *
posix_fopen(const char *path, const char *mode)
{
char *bin_mode = mode;
if (strchr(mode, 'b') == NULL) {
bin_mode = NULL;
if (asprintf(&bin_mode, "%sb", mode) == -1)
return NULL;
fprintf(stderr, "opening bin file %s\n", bin_mode);
}
FILE *f = fopen(path, bin_mode);
if (bin_mode != mode)
free(bin_mode);
return f;
}
#define fopen(path, mode) posix_fopen(path, mode)
#define rename(oldpath, newpath) posix_rename(oldpath, newpath)
#endif
#endif

139
include/win32netcompat.h
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@ -19,142 +19,29 @@
#include <errno.h>
#include <unistd.h>
static int
wsa_errno(int err)
{
switch (err) {
case WSAENOBUFS:
errno = ENOMEM;
break;
case WSAEACCES:
errno = EACCES;
break;
case WSANOTINITIALISED:
errno = EPERM;
break;
case WSAEHOSTUNREACH:
case WSAENETDOWN:
errno = EIO;
break;
case WSAEFAULT:
errno = EFAULT;
break;
case WSAEINTR:
errno = EINTR;
break;
case WSAEINVAL:
errno = EINVAL;
break;
case WSAEINPROGRESS:
errno = EINPROGRESS;
break;
case WSAEWOULDBLOCK:
errno = EAGAIN;
break;
case WSAEOPNOTSUPP:
errno = ENOTSUP;
break;
case WSAEMSGSIZE:
errno = EFBIG;
break;
case WSAENOTSOCK:
errno = ENOTSOCK;
break;
case WSAENOPROTOOPT:
errno = ENOPROTOOPT;
break;
case WSAECONNREFUSED:
errno = ECONNREFUSED;
break;
case WSAEAFNOSUPPORT:
errno = EAFNOSUPPORT;
break;
case WSAENETRESET:
case WSAENOTCONN:
case WSAECONNABORTED:
case WSAECONNRESET:
case WSAESHUTDOWN:
case WSAETIMEDOUT:
errno = EPIPE;
break;
}
return -1;
}
int posix_connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
static inline int
posix_connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen)
{
int rc = connect(sockfd, addr, addrlen);
if (rc == SOCKET_ERROR)
return wsa_errno(WSAGetLastError());
return rc;
}
int posix_close(int fd);
ssize_t posix_read(int fd, void *buf, size_t count);
ssize_t posix_write(int fd, const void *buf, size_t count);
int posix_getsockopt(int sockfd, int level, int optname,
void *optval, socklen_t *optlen);
int posix_setsockopt(int sockfd, int level, int optname,
const void *optval, socklen_t optlen);
#ifndef NO_REDEF_POSIX_FUNCTIONS
#define connect(sockfd, addr, addrlen) posix_connect(sockfd, addr, addrlen)
static inline int
posix_close(int fd)
{
if (closesocket(fd) == SOCKET_ERROR) {
int err = WSAGetLastError();
return err == WSAENOTSOCK ?
close(fd) : wsa_errno(err);
}
return 0;
}
#define close(fd) posix_close(fd)
static inline ssize_t
posix_read(int fd, void *buf, size_t count)
{
ssize_t rc = recv(fd, buf, count, 0);
if (rc == SOCKET_ERROR) {
int err = WSAGetLastError();
return err == WSAENOTSOCK ?
read(fd, buf, count) : wsa_errno(err);
}
return rc;
}
#define read(fd, buf, count) posix_read(fd, buf, count)
static inline ssize_t
posix_write(int fd, const void *buf, size_t count)
{
ssize_t rc = send(fd, buf, count, 0);
if (rc == SOCKET_ERROR) {
int err = WSAGetLastError();
return err == WSAENOTSOCK ?
write(fd, buf, count) : wsa_errno(err);
}
return rc;
}
#define write(fd, buf, count) posix_write(fd, buf, count)
static inline int
posix_getsockopt(int sockfd, int level, int optname,
void *optval, socklen_t *optlen)
{
int rc = getsockopt(sockfd, level, optname, (char *)optval, optlen);
return rc == 0 ? 0 : wsa_errno(WSAGetLastError());
}
#define getsockopt(sockfd, level, optname, optval, optlen) \
posix_getsockopt(sockfd, level, optname, optval, optlen)
static inline int
posix_setsockopt(int sockfd, int level, int optname,
const void *optval, socklen_t optlen)
{
int rc = setsockopt(sockfd, level, optname, (char *)optval, optlen);
return rc == 0 ? 0 : wsa_errno(WSAGetLastError());
}
#define setsockopt(sockfd, level, optname, optval, optlen) \
posix_setsockopt(sockfd, level, optname, optval, optlen)
#endif
#endif