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-rw-r--r--qemu/util/osdep.c429
1 files changed, 0 insertions, 429 deletions
diff --git a/qemu/util/osdep.c b/qemu/util/osdep.c
deleted file mode 100644
index d56d07111..000000000
--- a/qemu/util/osdep.c
+++ /dev/null
@@ -1,429 +0,0 @@
-/*
- * QEMU low level functions
- *
- * Copyright (c) 2003 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include "qemu/osdep.h"
-
-/* Needed early for CONFIG_BSD etc. */
-
-#if defined(CONFIG_MADVISE) || defined(CONFIG_POSIX_MADVISE)
-#include <sys/mman.h>
-#endif
-
-#ifdef CONFIG_SOLARIS
-#include <sys/statvfs.h>
-/* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
- discussion about Solaris header problems */
-extern int madvise(caddr_t, size_t, int);
-#endif
-
-#include "qemu-common.h"
-#include "qemu/cutils.h"
-#include "qemu/sockets.h"
-#include "qemu/error-report.h"
-#include "monitor/monitor.h"
-
-static bool fips_enabled = false;
-
-/* Starting on QEMU 2.5, qemu_hw_version() returns "2.5+" by default
- * instead of QEMU_VERSION, so setting hw_version on MachineClass
- * is no longer mandatory.
- *
- * Do NOT change this string, or it will break compatibility on all
- * machine classes that don't set hw_version.
- */
-static const char *hw_version = "2.5+";
-
-int socket_set_cork(int fd, int v)
-{
-#if defined(SOL_TCP) && defined(TCP_CORK)
- return qemu_setsockopt(fd, SOL_TCP, TCP_CORK, &v, sizeof(v));
-#else
- return 0;
-#endif
-}
-
-int socket_set_nodelay(int fd)
-{
- int v = 1;
- return qemu_setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &v, sizeof(v));
-}
-
-int qemu_madvise(void *addr, size_t len, int advice)
-{
- if (advice == QEMU_MADV_INVALID) {
- errno = EINVAL;
- return -1;
- }
-#if defined(CONFIG_MADVISE)
- return madvise(addr, len, advice);
-#elif defined(CONFIG_POSIX_MADVISE)
- return posix_madvise(addr, len, advice);
-#else
- errno = EINVAL;
- return -1;
-#endif
-}
-
-#ifndef _WIN32
-/*
- * Dups an fd and sets the flags
- */
-static int qemu_dup_flags(int fd, int flags)
-{
- int ret;
- int serrno;
- int dup_flags;
-
-#ifdef F_DUPFD_CLOEXEC
- ret = fcntl(fd, F_DUPFD_CLOEXEC, 0);
-#else
- ret = dup(fd);
- if (ret != -1) {
- qemu_set_cloexec(ret);
- }
-#endif
- if (ret == -1) {
- goto fail;
- }
-
- dup_flags = fcntl(ret, F_GETFL);
- if (dup_flags == -1) {
- goto fail;
- }
-
- if ((flags & O_SYNC) != (dup_flags & O_SYNC)) {
- errno = EINVAL;
- goto fail;
- }
-
- /* Set/unset flags that we can with fcntl */
- if (fcntl(ret, F_SETFL, flags) == -1) {
- goto fail;
- }
-
- /* Truncate the file in the cases that open() would truncate it */
- if (flags & O_TRUNC ||
- ((flags & (O_CREAT | O_EXCL)) == (O_CREAT | O_EXCL))) {
- if (ftruncate(ret, 0) == -1) {
- goto fail;
- }
- }
-
- return ret;
-
-fail:
- serrno = errno;
- if (ret != -1) {
- close(ret);
- }
- errno = serrno;
- return -1;
-}
-
-static int qemu_parse_fdset(const char *param)
-{
- return qemu_parse_fd(param);
-}
-#endif
-
-/*
- * Opens a file with FD_CLOEXEC set
- */
-int qemu_open(const char *name, int flags, ...)
-{
- int ret;
- int mode = 0;
-
-#ifndef _WIN32
- const char *fdset_id_str;
-
- /* Attempt dup of fd from fd set */
- if (strstart(name, "/dev/fdset/", &fdset_id_str)) {
- int64_t fdset_id;
- int fd, dupfd;
-
- fdset_id = qemu_parse_fdset(fdset_id_str);
- if (fdset_id == -1) {
- errno = EINVAL;
- return -1;
- }
-
- fd = monitor_fdset_get_fd(fdset_id, flags);
- if (fd == -1) {
- return -1;
- }
-
- dupfd = qemu_dup_flags(fd, flags);
- if (dupfd == -1) {
- return -1;
- }
-
- ret = monitor_fdset_dup_fd_add(fdset_id, dupfd);
- if (ret == -1) {
- close(dupfd);
- errno = EINVAL;
- return -1;
- }
-
- return dupfd;
- }
-#endif
-
- if (flags & O_CREAT) {
- va_list ap;
-
- va_start(ap, flags);
- mode = va_arg(ap, int);
- va_end(ap);
- }
-
-#ifdef O_CLOEXEC
- ret = open(name, flags | O_CLOEXEC, mode);
-#else
- ret = open(name, flags, mode);
- if (ret >= 0) {
- qemu_set_cloexec(ret);
- }
-#endif
-
-#ifdef O_DIRECT
- if (ret == -1 && errno == EINVAL && (flags & O_DIRECT)) {
- error_report("file system may not support O_DIRECT");
- errno = EINVAL; /* in case it was clobbered */
- }
-#endif /* O_DIRECT */
-
- return ret;
-}
-
-int qemu_close(int fd)
-{
- int64_t fdset_id;
-
- /* Close fd that was dup'd from an fdset */
- fdset_id = monitor_fdset_dup_fd_find(fd);
- if (fdset_id != -1) {
- int ret;
-
- ret = close(fd);
- if (ret == 0) {
- monitor_fdset_dup_fd_remove(fd);
- }
-
- return ret;
- }
-
- return close(fd);
-}
-
-/*
- * A variant of write(2) which handles partial write.
- *
- * Return the number of bytes transferred.
- * Set errno if fewer than `count' bytes are written.
- *
- * This function don't work with non-blocking fd's.
- * Any of the possibilities with non-bloking fd's is bad:
- * - return a short write (then name is wrong)
- * - busy wait adding (errno == EAGAIN) to the loop
- */
-ssize_t qemu_write_full(int fd, const void *buf, size_t count)
-{
- ssize_t ret = 0;
- ssize_t total = 0;
-
- while (count) {
- ret = write(fd, buf, count);
- if (ret < 0) {
- if (errno == EINTR)
- continue;
- break;
- }
-
- count -= ret;
- buf += ret;
- total += ret;
- }
-
- return total;
-}
-
-/*
- * Opens a socket with FD_CLOEXEC set
- */
-int qemu_socket(int domain, int type, int protocol)
-{
- int ret;
-
-#ifdef SOCK_CLOEXEC
- ret = socket(domain, type | SOCK_CLOEXEC, protocol);
- if (ret != -1 || errno != EINVAL) {
- return ret;
- }
-#endif
- ret = socket(domain, type, protocol);
- if (ret >= 0) {
- qemu_set_cloexec(ret);
- }
-
- return ret;
-}
-
-/*
- * Accept a connection and set FD_CLOEXEC
- */
-int qemu_accept(int s, struct sockaddr *addr, socklen_t *addrlen)
-{
- int ret;
-
-#ifdef CONFIG_ACCEPT4
- ret = accept4(s, addr, addrlen, SOCK_CLOEXEC);
- if (ret != -1 || errno != ENOSYS) {
- return ret;
- }
-#endif
- ret = accept(s, addr, addrlen);
- if (ret >= 0) {
- qemu_set_cloexec(ret);
- }
-
- return ret;
-}
-
-void qemu_set_hw_version(const char *version)
-{
- hw_version = version;
-}
-
-const char *qemu_hw_version(void)
-{
- return hw_version;
-}
-
-void fips_set_state(bool requested)
-{
-#ifdef __linux__
- if (requested) {
- FILE *fds = fopen("/proc/sys/crypto/fips_enabled", "r");
- if (fds != NULL) {
- fips_enabled = (fgetc(fds) == '1');
- fclose(fds);
- }
- }
-#else
- fips_enabled = false;
-#endif /* __linux__ */
-
-#ifdef _FIPS_DEBUG
- fprintf(stderr, "FIPS mode %s (requested %s)\n",
- (fips_enabled ? "enabled" : "disabled"),
- (requested ? "enabled" : "disabled"));
-#endif
-}
-
-bool fips_get_state(void)
-{
- return fips_enabled;
-}
-
-#ifdef _WIN32
-static void socket_cleanup(void)
-{
- WSACleanup();
-}
-#endif
-
-int socket_init(void)
-{
-#ifdef _WIN32
- WSADATA Data;
- int ret, err;
-
- ret = WSAStartup(MAKEWORD(2, 2), &Data);
- if (ret != 0) {
- err = WSAGetLastError();
- fprintf(stderr, "WSAStartup: %d\n", err);
- return -1;
- }
- atexit(socket_cleanup);
-#endif
- return 0;
-}
-
-#if !GLIB_CHECK_VERSION(2, 31, 0)
-/* Ensure that glib is running in multi-threaded mode
- * Old versions of glib require explicit initialization. Failure to do
- * this results in the single-threaded code paths being taken inside
- * glib. For example, the g_slice allocator will not be thread-safe
- * and cause crashes.
- */
-static void __attribute__((constructor)) thread_init(void)
-{
- if (!g_thread_supported()) {
- g_thread_init(NULL);
- }
-}
-#endif
-
-#ifndef CONFIG_IOVEC
-/* helper function for iov_send_recv() */
-static ssize_t
-readv_writev(int fd, const struct iovec *iov, int iov_cnt, bool do_write)
-{
- unsigned i = 0;
- ssize_t ret = 0;
- while (i < iov_cnt) {
- ssize_t r = do_write
- ? write(fd, iov[i].iov_base, iov[i].iov_len)
- : read(fd, iov[i].iov_base, iov[i].iov_len);
- if (r > 0) {
- ret += r;
- } else if (!r) {
- break;
- } else if (errno == EINTR) {
- continue;
- } else {
- /* else it is some "other" error,
- * only return if there was no data processed. */
- if (ret == 0) {
- ret = -1;
- }
- break;
- }
- i++;
- }
- return ret;
-}
-
-ssize_t
-readv(int fd, const struct iovec *iov, int iov_cnt)
-{
- return readv_writev(fd, iov, iov_cnt, false);
-}
-
-ssize_t
-writev(int fd, const struct iovec *iov, int iov_cnt)
-{
- return readv_writev(fd, iov, iov_cnt, true);
-}
-#endif