#include "../git-compat-util.h"
+#include "win32.h"
+#include <conio.h>
+#include "../strbuf.h"
-unsigned int _CRT_fmode = _O_BINARY;
+#include <shellapi.h>
+
+static int err_win_to_posix(DWORD winerr)
+{
+ int error = ENOSYS;
+ switch(winerr) {
+ case ERROR_ACCESS_DENIED: error = EACCES; break;
+ case ERROR_ACCOUNT_DISABLED: error = EACCES; break;
+ case ERROR_ACCOUNT_RESTRICTION: error = EACCES; break;
+ case ERROR_ALREADY_ASSIGNED: error = EBUSY; break;
+ case ERROR_ALREADY_EXISTS: error = EEXIST; break;
+ case ERROR_ARITHMETIC_OVERFLOW: error = ERANGE; break;
+ case ERROR_BAD_COMMAND: error = EIO; break;
+ case ERROR_BAD_DEVICE: error = ENODEV; break;
+ case ERROR_BAD_DRIVER_LEVEL: error = ENXIO; break;
+ case ERROR_BAD_EXE_FORMAT: error = ENOEXEC; break;
+ case ERROR_BAD_FORMAT: error = ENOEXEC; break;
+ case ERROR_BAD_LENGTH: error = EINVAL; break;
+ case ERROR_BAD_PATHNAME: error = ENOENT; break;
+ case ERROR_BAD_PIPE: error = EPIPE; break;
+ case ERROR_BAD_UNIT: error = ENODEV; break;
+ case ERROR_BAD_USERNAME: error = EINVAL; break;
+ case ERROR_BROKEN_PIPE: error = EPIPE; break;
+ case ERROR_BUFFER_OVERFLOW: error = ENAMETOOLONG; break;
+ case ERROR_BUSY: error = EBUSY; break;
+ case ERROR_BUSY_DRIVE: error = EBUSY; break;
+ case ERROR_CALL_NOT_IMPLEMENTED: error = ENOSYS; break;
+ case ERROR_CANNOT_MAKE: error = EACCES; break;
+ case ERROR_CANTOPEN: error = EIO; break;
+ case ERROR_CANTREAD: error = EIO; break;
+ case ERROR_CANTWRITE: error = EIO; break;
+ case ERROR_CRC: error = EIO; break;
+ case ERROR_CURRENT_DIRECTORY: error = EACCES; break;
+ case ERROR_DEVICE_IN_USE: error = EBUSY; break;
+ case ERROR_DEV_NOT_EXIST: error = ENODEV; break;
+ case ERROR_DIRECTORY: error = EINVAL; break;
+ case ERROR_DIR_NOT_EMPTY: error = ENOTEMPTY; break;
+ case ERROR_DISK_CHANGE: error = EIO; break;
+ case ERROR_DISK_FULL: error = ENOSPC; break;
+ case ERROR_DRIVE_LOCKED: error = EBUSY; break;
+ case ERROR_ENVVAR_NOT_FOUND: error = EINVAL; break;
+ case ERROR_EXE_MARKED_INVALID: error = ENOEXEC; break;
+ case ERROR_FILENAME_EXCED_RANGE: error = ENAMETOOLONG; break;
+ case ERROR_FILE_EXISTS: error = EEXIST; break;
+ case ERROR_FILE_INVALID: error = ENODEV; break;
+ case ERROR_FILE_NOT_FOUND: error = ENOENT; break;
+ case ERROR_GEN_FAILURE: error = EIO; break;
+ case ERROR_HANDLE_DISK_FULL: error = ENOSPC; break;
+ case ERROR_INSUFFICIENT_BUFFER: error = ENOMEM; break;
+ case ERROR_INVALID_ACCESS: error = EACCES; break;
+ case ERROR_INVALID_ADDRESS: error = EFAULT; break;
+ case ERROR_INVALID_BLOCK: error = EFAULT; break;
+ case ERROR_INVALID_DATA: error = EINVAL; break;
+ case ERROR_INVALID_DRIVE: error = ENODEV; break;
+ case ERROR_INVALID_EXE_SIGNATURE: error = ENOEXEC; break;
+ case ERROR_INVALID_FLAGS: error = EINVAL; break;
+ case ERROR_INVALID_FUNCTION: error = ENOSYS; break;
+ case ERROR_INVALID_HANDLE: error = EBADF; break;
+ case ERROR_INVALID_LOGON_HOURS: error = EACCES; break;
+ case ERROR_INVALID_NAME: error = EINVAL; break;
+ case ERROR_INVALID_OWNER: error = EINVAL; break;
+ case ERROR_INVALID_PARAMETER: error = EINVAL; break;
+ case ERROR_INVALID_PASSWORD: error = EPERM; break;
+ case ERROR_INVALID_PRIMARY_GROUP: error = EINVAL; break;
+ case ERROR_INVALID_SIGNAL_NUMBER: error = EINVAL; break;
+ case ERROR_INVALID_TARGET_HANDLE: error = EIO; break;
+ case ERROR_INVALID_WORKSTATION: error = EACCES; break;
+ case ERROR_IO_DEVICE: error = EIO; break;
+ case ERROR_IO_INCOMPLETE: error = EINTR; break;
+ case ERROR_LOCKED: error = EBUSY; break;
+ case ERROR_LOCK_VIOLATION: error = EACCES; break;
+ case ERROR_LOGON_FAILURE: error = EACCES; break;
+ case ERROR_MAPPED_ALIGNMENT: error = EINVAL; break;
+ case ERROR_META_EXPANSION_TOO_LONG: error = E2BIG; break;
+ case ERROR_MORE_DATA: error = EPIPE; break;
+ case ERROR_NEGATIVE_SEEK: error = ESPIPE; break;
+ case ERROR_NOACCESS: error = EFAULT; break;
+ case ERROR_NONE_MAPPED: error = EINVAL; break;
+ case ERROR_NOT_ENOUGH_MEMORY: error = ENOMEM; break;
+ case ERROR_NOT_READY: error = EAGAIN; break;
+ case ERROR_NOT_SAME_DEVICE: error = EXDEV; break;
+ case ERROR_NO_DATA: error = EPIPE; break;
+ case ERROR_NO_MORE_SEARCH_HANDLES: error = EIO; break;
+ case ERROR_NO_PROC_SLOTS: error = EAGAIN; break;
+ case ERROR_NO_SUCH_PRIVILEGE: error = EACCES; break;
+ case ERROR_OPEN_FAILED: error = EIO; break;
+ case ERROR_OPEN_FILES: error = EBUSY; break;
+ case ERROR_OPERATION_ABORTED: error = EINTR; break;
+ case ERROR_OUTOFMEMORY: error = ENOMEM; break;
+ case ERROR_PASSWORD_EXPIRED: error = EACCES; break;
+ case ERROR_PATH_BUSY: error = EBUSY; break;
+ case ERROR_PATH_NOT_FOUND: error = ENOENT; break;
+ case ERROR_PIPE_BUSY: error = EBUSY; break;
+ case ERROR_PIPE_CONNECTED: error = EPIPE; break;
+ case ERROR_PIPE_LISTENING: error = EPIPE; break;
+ case ERROR_PIPE_NOT_CONNECTED: error = EPIPE; break;
+ case ERROR_PRIVILEGE_NOT_HELD: error = EACCES; break;
+ case ERROR_READ_FAULT: error = EIO; break;
+ case ERROR_SEEK: error = EIO; break;
+ case ERROR_SEEK_ON_DEVICE: error = ESPIPE; break;
+ case ERROR_SHARING_BUFFER_EXCEEDED: error = ENFILE; break;
+ case ERROR_SHARING_VIOLATION: error = EACCES; break;
+ case ERROR_STACK_OVERFLOW: error = ENOMEM; break;
+ case ERROR_SWAPERROR: error = ENOENT; break;
+ case ERROR_TOO_MANY_MODULES: error = EMFILE; break;
+ case ERROR_TOO_MANY_OPEN_FILES: error = EMFILE; break;
+ case ERROR_UNRECOGNIZED_MEDIA: error = ENXIO; break;
+ case ERROR_UNRECOGNIZED_VOLUME: error = ENODEV; break;
+ case ERROR_WAIT_NO_CHILDREN: error = ECHILD; break;
+ case ERROR_WRITE_FAULT: error = EIO; break;
+ case ERROR_WRITE_PROTECT: error = EROFS; break;
+ }
+ return error;
+}
#undef open
int mingw_open (const char *filename, int oflags, ...)
{
va_list args;
unsigned mode;
+ int fd;
+
va_start(args, oflags);
mode = va_arg(args, int);
va_end(args);
if (!strcmp(filename, "/dev/null"))
filename = "nul";
- int fd = open(filename, oflags, mode);
+
+ fd = open(filename, oflags, mode);
+
if (fd < 0 && (oflags & O_CREAT) && errno == EACCES) {
DWORD attrs = GetFileAttributes(filename);
if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY))
return fd;
}
+static inline time_t filetime_to_time_t(const FILETIME *ft)
+{
+ long long winTime = ((long long)ft->dwHighDateTime << 32) + ft->dwLowDateTime;
+ winTime -= 116444736000000000LL; /* Windows to Unix Epoch conversion */
+ winTime /= 10000000; /* Nano to seconds resolution */
+ return (time_t)winTime;
+}
+
+/* We keep the do_lstat code in a separate function to avoid recursion.
+ * When a path ends with a slash, the stat will fail with ENOENT. In
+ * this case, we strip the trailing slashes and stat again.
+ */
+static int do_lstat(const char *file_name, struct stat *buf)
+{
+ WIN32_FILE_ATTRIBUTE_DATA fdata;
+
+ if (!(errno = get_file_attr(file_name, &fdata))) {
+ buf->st_ino = 0;
+ buf->st_gid = 0;
+ buf->st_uid = 0;
+ buf->st_nlink = 1;
+ buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
+ buf->st_size = fdata.nFileSizeLow |
+ (((off_t)fdata.nFileSizeHigh)<<32);
+ buf->st_dev = buf->st_rdev = 0; /* not used by Git */
+ buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
+ buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
+ buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
+ return 0;
+ }
+ return -1;
+}
+
+/* We provide our own lstat/fstat functions, since the provided
+ * lstat/fstat functions are so slow. These stat functions are
+ * tailored for Git's usage (read: fast), and are not meant to be
+ * complete. Note that Git stat()s are redirected to mingw_lstat()
+ * too, since Windows doesn't really handle symlinks that well.
+ */
+int mingw_lstat(const char *file_name, struct stat *buf)
+{
+ int namelen;
+ static char alt_name[PATH_MAX];
+
+ if (!do_lstat(file_name, buf))
+ return 0;
+
+ /* if file_name ended in a '/', Windows returned ENOENT;
+ * try again without trailing slashes
+ */
+ if (errno != ENOENT)
+ return -1;
+
+ namelen = strlen(file_name);
+ if (namelen && file_name[namelen-1] != '/')
+ return -1;
+ while (namelen && file_name[namelen-1] == '/')
+ --namelen;
+ if (!namelen || namelen >= PATH_MAX)
+ return -1;
+
+ memcpy(alt_name, file_name, namelen);
+ alt_name[namelen] = 0;
+ return do_lstat(alt_name, buf);
+}
+
+#undef fstat
+int mingw_fstat(int fd, struct stat *buf)
+{
+ HANDLE fh = (HANDLE)_get_osfhandle(fd);
+ BY_HANDLE_FILE_INFORMATION fdata;
+
+ if (fh == INVALID_HANDLE_VALUE) {
+ errno = EBADF;
+ return -1;
+ }
+ /* direct non-file handles to MS's fstat() */
+ if (GetFileType(fh) != FILE_TYPE_DISK)
+ return _fstati64(fd, buf);
+
+ if (GetFileInformationByHandle(fh, &fdata)) {
+ buf->st_ino = 0;
+ buf->st_gid = 0;
+ buf->st_uid = 0;
+ buf->st_nlink = 1;
+ buf->st_mode = file_attr_to_st_mode(fdata.dwFileAttributes);
+ buf->st_size = fdata.nFileSizeLow |
+ (((off_t)fdata.nFileSizeHigh)<<32);
+ buf->st_dev = buf->st_rdev = 0; /* not used by Git */
+ buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime));
+ buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
+ buf->st_ctime = filetime_to_time_t(&(fdata.ftCreationTime));
+ return 0;
+ }
+ errno = EBADF;
+ return -1;
+}
+
+static inline void time_t_to_filetime(time_t t, FILETIME *ft)
+{
+ long long winTime = t * 10000000LL + 116444736000000000LL;
+ ft->dwLowDateTime = winTime;
+ ft->dwHighDateTime = winTime >> 32;
+}
+
+int mingw_utime (const char *file_name, const struct utimbuf *times)
+{
+ FILETIME mft, aft;
+ int fh, rc;
+
+ /* must have write permission */
+ if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
+ return -1;
+
+ time_t_to_filetime(times->modtime, &mft);
+ time_t_to_filetime(times->actime, &aft);
+ if (!SetFileTime((HANDLE)_get_osfhandle(fh), NULL, &aft, &mft)) {
+ errno = EINVAL;
+ rc = -1;
+ } else
+ rc = 0;
+ close(fh);
+ return rc;
+}
+
unsigned int sleep (unsigned int seconds)
{
Sleep(seconds*1000);
int poll(struct pollfd *ufds, unsigned int nfds, int timeout)
{
- return -1;
+ int i, pending;
+
+ if (timeout >= 0) {
+ if (nfds == 0) {
+ Sleep(timeout);
+ return 0;
+ }
+ return errno = EINVAL, error("poll timeout not supported");
+ }
+
+ /* When there is only one fd to wait for, then we pretend that
+ * input is available and let the actual wait happen when the
+ * caller invokes read().
+ */
+ if (nfds == 1) {
+ if (!(ufds[0].events & POLLIN))
+ return errno = EINVAL, error("POLLIN not set");
+ ufds[0].revents = POLLIN;
+ return 0;
+ }
+
+repeat:
+ pending = 0;
+ for (i = 0; i < nfds; i++) {
+ DWORD avail = 0;
+ HANDLE h = (HANDLE) _get_osfhandle(ufds[i].fd);
+ if (h == INVALID_HANDLE_VALUE)
+ return -1; /* errno was set */
+
+ if (!(ufds[i].events & POLLIN))
+ return errno = EINVAL, error("POLLIN not set");
+
+ /* this emulation works only for pipes */
+ if (!PeekNamedPipe(h, NULL, 0, NULL, &avail, NULL)) {
+ int err = GetLastError();
+ if (err == ERROR_BROKEN_PIPE) {
+ ufds[i].revents = POLLHUP;
+ pending++;
+ } else {
+ errno = EINVAL;
+ return error("PeekNamedPipe failed,"
+ " GetLastError: %u", err);
+ }
+ } else if (avail) {
+ ufds[i].revents = POLLIN;
+ pending++;
+ } else
+ ufds[i].revents = 0;
+ }
+ if (!pending) {
+ /* The only times that we spin here is when the process
+ * that is connected through the pipes is waiting for
+ * its own input data to become available. But since
+ * the process (pack-objects) is itself CPU intensive,
+ * it will happily pick up the time slice that we are
+ * relinquishing here.
+ */
+ Sleep(0);
+ goto repeat;
+ }
+ return 0;
}
struct tm *gmtime_r(const time_t *timep, struct tm *result)
return ret;
}
+#undef getenv
+char *mingw_getenv(const char *name)
+{
+ char *result = getenv(name);
+ if (!result && !strcmp(name, "TMPDIR")) {
+ /* on Windows it is TMP and TEMP */
+ result = getenv("TMP");
+ if (!result)
+ result = getenv("TEMP");
+ }
+ return result;
+}
+
+/*
+ * See http://msdn2.microsoft.com/en-us/library/17w5ykft(vs.71).aspx
+ * (Parsing C++ Command-Line Arguments)
+ */
+static const char *quote_arg(const char *arg)
+{
+ /* count chars to quote */
+ int len = 0, n = 0;
+ int force_quotes = 0;
+ char *q, *d;
+ const char *p = arg;
+ if (!*p) force_quotes = 1;
+ while (*p) {
+ if (isspace(*p) || *p == '*' || *p == '?' || *p == '{' || *p == '\'')
+ force_quotes = 1;
+ else if (*p == '"')
+ n++;
+ else if (*p == '\\') {
+ int count = 0;
+ while (*p == '\\') {
+ count++;
+ p++;
+ len++;
+ }
+ if (*p == '"')
+ n += count*2 + 1;
+ continue;
+ }
+ len++;
+ p++;
+ }
+ if (!force_quotes && n == 0)
+ return arg;
+
+ /* insert \ where necessary */
+ d = q = xmalloc(len+n+3);
+ *d++ = '"';
+ while (*arg) {
+ if (*arg == '"')
+ *d++ = '\\';
+ else if (*arg == '\\') {
+ int count = 0;
+ while (*arg == '\\') {
+ count++;
+ *d++ = *arg++;
+ }
+ if (*arg == '"') {
+ while (count-- > 0)
+ *d++ = '\\';
+ *d++ = '\\';
+ }
+ }
+ *d++ = *arg++;
+ }
+ *d++ = '"';
+ *d++ = 0;
+ return q;
+}
+
static const char *parse_interpreter(const char *cmd)
{
static char buf[100];
if (buf[0] != '#' || buf[1] != '!')
return NULL;
buf[n] = '\0';
- p = strchr(buf, '\n');
- if (!p)
+ p = buf + strcspn(buf, "\r\n");
+ if (!*p)
return NULL;
*p = '\0';
if (!n)
return NULL;
- path = xmalloc((n+1)*sizeof(char*));
+ path = xmalloc((n+1)*sizeof(char *));
p = envpath;
i = 0;
do {
static void free_path_split(char **path)
{
+ char **p = path;
+
if (!path)
return;
- char **p = path;
while (*p)
free(*p++);
free(path);
return xstrdup(path);
path[strlen(path)-4] = '\0';
if ((!exe_only || isexe) && access(path, F_OK) == 0)
- return xstrdup(path);
+ if (!(GetFileAttributes(path) & FILE_ATTRIBUTE_DIRECTORY))
+ return xstrdup(path);
return NULL;
}
return prog;
}
+static int env_compare(const void *a, const void *b)
+{
+ char *const *ea = a;
+ char *const *eb = b;
+ return strcasecmp(*ea, *eb);
+}
+
+static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
+ int prepend_cmd)
+{
+ STARTUPINFO si;
+ PROCESS_INFORMATION pi;
+ struct strbuf envblk, args;
+ unsigned flags;
+ BOOL ret;
+
+ /* Determine whether or not we are associated to a console */
+ HANDLE cons = CreateFile("CONOUT$", GENERIC_WRITE,
+ FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL, NULL);
+ if (cons == INVALID_HANDLE_VALUE) {
+ /* There is no console associated with this process.
+ * Since the child is a console process, Windows
+ * would normally create a console window. But
+ * since we'll be redirecting std streams, we do
+ * not need the console.
+ * It is necessary to use DETACHED_PROCESS
+ * instead of CREATE_NO_WINDOW to make ssh
+ * recognize that it has no console.
+ */
+ flags = DETACHED_PROCESS;
+ } else {
+ /* There is already a console. If we specified
+ * DETACHED_PROCESS here, too, Windows would
+ * disassociate the child from the console.
+ * The same is true for CREATE_NO_WINDOW.
+ * Go figure!
+ */
+ flags = 0;
+ CloseHandle(cons);
+ }
+ memset(&si, 0, sizeof(si));
+ si.cb = sizeof(si);
+ si.dwFlags = STARTF_USESTDHANDLES;
+ si.hStdInput = (HANDLE) _get_osfhandle(0);
+ si.hStdOutput = (HANDLE) _get_osfhandle(1);
+ si.hStdError = (HANDLE) _get_osfhandle(2);
+
+ /* concatenate argv, quoting args as we go */
+ strbuf_init(&args, 0);
+ if (prepend_cmd) {
+ char *quoted = (char *)quote_arg(cmd);
+ strbuf_addstr(&args, quoted);
+ if (quoted != cmd)
+ free(quoted);
+ }
+ for (; *argv; argv++) {
+ char *quoted = (char *)quote_arg(*argv);
+ if (*args.buf)
+ strbuf_addch(&args, ' ');
+ strbuf_addstr(&args, quoted);
+ if (quoted != *argv)
+ free(quoted);
+ }
+
+ if (env) {
+ int count = 0;
+ char **e, **sorted_env;
+
+ for (e = env; *e; e++)
+ count++;
+
+ /* environment must be sorted */
+ sorted_env = xmalloc(sizeof(*sorted_env) * (count + 1));
+ memcpy(sorted_env, env, sizeof(*sorted_env) * (count + 1));
+ qsort(sorted_env, count, sizeof(*sorted_env), env_compare);
+
+ strbuf_init(&envblk, 0);
+ for (e = sorted_env; *e; e++) {
+ strbuf_addstr(&envblk, *e);
+ strbuf_addch(&envblk, '\0');
+ }
+ free(sorted_env);
+ }
+
+ memset(&pi, 0, sizeof(pi));
+ ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags,
+ env ? envblk.buf : NULL, NULL, &si, &pi);
+
+ if (env)
+ strbuf_release(&envblk);
+ strbuf_release(&args);
+
+ if (!ret) {
+ errno = ENOENT;
+ return -1;
+ }
+ CloseHandle(pi.hThread);
+ return (pid_t)pi.hProcess;
+}
+
+pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
+{
+ pid_t pid;
+ char **path = get_path_split();
+ char *prog = path_lookup(cmd, path, 0);
+
+ if (!prog) {
+ errno = ENOENT;
+ pid = -1;
+ }
+ else {
+ const char *interpr = parse_interpreter(prog);
+
+ if (interpr) {
+ const char *argv0 = argv[0];
+ char *iprog = path_lookup(interpr, path, 1);
+ argv[0] = prog;
+ if (!iprog) {
+ errno = ENOENT;
+ pid = -1;
+ }
+ else {
+ pid = mingw_spawnve(iprog, argv, env, 1);
+ free(iprog);
+ }
+ argv[0] = argv0;
+ }
+ else
+ pid = mingw_spawnve(prog, argv, env, 0);
+ free(prog);
+ }
+ free_path_split(path);
+ return pid;
+}
+
static int try_shell_exec(const char *cmd, char *const *argv, char **env)
{
const char *interpr = parse_interpreter(cmd);
int argc = 0;
const char **argv2;
while (argv[argc]) argc++;
- argv2 = xmalloc(sizeof(*argv) * (argc+2));
- argv2[0] = (char *)interpr;
- argv2[1] = (char *)cmd; /* full path to the script file */
- memcpy(&argv2[2], &argv[1], sizeof(*argv) * argc);
- pid = spawnve(_P_NOWAIT, prog, argv2, (const char **)env);
+ argv2 = xmalloc(sizeof(*argv) * (argc+1));
+ argv2[0] = (char *)cmd; /* full path to the script file */
+ memcpy(&argv2[1], &argv[1], sizeof(*argv) * argc);
+ pid = mingw_spawnve(prog, argv2, env, 1);
if (pid >= 0) {
int status;
if (waitpid(pid, &status, 0) < 0)
if (!try_shell_exec(cmd, argv, (char **)env)) {
int pid, status;
- pid = spawnve(_P_NOWAIT, cmd, (const char **)argv, (const char **)env);
+ pid = mingw_spawnve(cmd, (const char **)argv, (char **)env, 0);
if (pid < 0)
return;
if (waitpid(pid, &status, 0) < 0)
free_path_split(path);
}
-char **copy_environ()
+static char **copy_environ(void)
{
char **env;
int i = 0;
/*
* If name contains '=', then sets the variable, otherwise it unsets it
*/
-char **env_setenv(char **env, const char *name)
+static char **env_setenv(char **env, const char *name)
{
char *eq = strchrnul(name, '=');
int i = lookup_env(env, name, eq-name);
return env;
}
+/*
+ * Copies global environ and adjusts variables as specified by vars.
+ */
+char **make_augmented_environ(const char *const *vars)
+{
+ char **env = copy_environ();
+
+ while (*vars)
+ env = env_setenv(env, *vars++);
+ return env;
+}
+
+/*
+ * Note, this isn't a complete replacement for getaddrinfo. It assumes
+ * that service contains a numerical port, or that it it is null. It
+ * does a simple search using gethostbyname, and returns one IPv4 host
+ * if one was found.
+ */
+static int WSAAPI getaddrinfo_stub(const char *node, const char *service,
+ const struct addrinfo *hints,
+ struct addrinfo **res)
+{
+ struct hostent *h = gethostbyname(node);
+ struct addrinfo *ai;
+ struct sockaddr_in *sin;
+
+ if (!h)
+ return WSAGetLastError();
+
+ ai = xmalloc(sizeof(struct addrinfo));
+ *res = ai;
+ ai->ai_flags = 0;
+ ai->ai_family = AF_INET;
+ ai->ai_socktype = hints->ai_socktype;
+ switch (hints->ai_socktype) {
+ case SOCK_STREAM:
+ ai->ai_protocol = IPPROTO_TCP;
+ break;
+ case SOCK_DGRAM:
+ ai->ai_protocol = IPPROTO_UDP;
+ break;
+ default:
+ ai->ai_protocol = 0;
+ break;
+ }
+ ai->ai_addrlen = sizeof(struct sockaddr_in);
+ ai->ai_canonname = strdup(h->h_name);
+
+ sin = xmalloc(ai->ai_addrlen);
+ memset(sin, 0, ai->ai_addrlen);
+ sin->sin_family = AF_INET;
+ if (service)
+ sin->sin_port = htons(atoi(service));
+ sin->sin_addr = *(struct in_addr *)h->h_addr;
+ ai->ai_addr = (struct sockaddr *)sin;
+ ai->ai_next = 0;
+ return 0;
+}
+
+static void WSAAPI freeaddrinfo_stub(struct addrinfo *res)
+{
+ free(res->ai_canonname);
+ free(res->ai_addr);
+ free(res);
+}
+
+static int WSAAPI getnameinfo_stub(const struct sockaddr *sa, socklen_t salen,
+ char *host, DWORD hostlen,
+ char *serv, DWORD servlen, int flags)
+{
+ const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
+ if (sa->sa_family != AF_INET)
+ return EAI_FAMILY;
+ if (!host && !serv)
+ return EAI_NONAME;
+
+ if (host && hostlen > 0) {
+ struct hostent *ent = NULL;
+ if (!(flags & NI_NUMERICHOST))
+ ent = gethostbyaddr((const char *)&sin->sin_addr,
+ sizeof(sin->sin_addr), AF_INET);
+
+ if (ent)
+ snprintf(host, hostlen, "%s", ent->h_name);
+ else if (flags & NI_NAMEREQD)
+ return EAI_NONAME;
+ else
+ snprintf(host, hostlen, "%s", inet_ntoa(sin->sin_addr));
+ }
+
+ if (serv && servlen > 0) {
+ struct servent *ent = NULL;
+ if (!(flags & NI_NUMERICSERV))
+ ent = getservbyport(sin->sin_port,
+ flags & NI_DGRAM ? "udp" : "tcp");
+
+ if (ent)
+ snprintf(serv, servlen, "%s", ent->s_name);
+ else
+ snprintf(serv, servlen, "%d", ntohs(sin->sin_port));
+ }
+
+ return 0;
+}
+
+static HMODULE ipv6_dll = NULL;
+static void (WSAAPI *ipv6_freeaddrinfo)(struct addrinfo *res);
+static int (WSAAPI *ipv6_getaddrinfo)(const char *node, const char *service,
+ const struct addrinfo *hints,
+ struct addrinfo **res);
+static int (WSAAPI *ipv6_getnameinfo)(const struct sockaddr *sa, socklen_t salen,
+ char *host, DWORD hostlen,
+ char *serv, DWORD servlen, int flags);
+/*
+ * gai_strerror is an inline function in the ws2tcpip.h header, so we
+ * don't need to try to load that one dynamically.
+ */
+
+static void socket_cleanup(void)
+{
+ WSACleanup();
+ if (ipv6_dll)
+ FreeLibrary(ipv6_dll);
+ ipv6_dll = NULL;
+ ipv6_freeaddrinfo = freeaddrinfo_stub;
+ ipv6_getaddrinfo = getaddrinfo_stub;
+ ipv6_getnameinfo = getnameinfo_stub;
+}
+
+static void ensure_socket_initialization(void)
+{
+ WSADATA wsa;
+ static int initialized = 0;
+ const char *libraries[] = { "ws2_32.dll", "wship6.dll", NULL };
+ const char **name;
+
+ if (initialized)
+ return;
+
+ if (WSAStartup(MAKEWORD(2,2), &wsa))
+ die("unable to initialize winsock subsystem, error %d",
+ WSAGetLastError());
+
+ for (name = libraries; *name; name++) {
+ ipv6_dll = LoadLibrary(*name);
+ if (!ipv6_dll)
+ continue;
+
+ ipv6_freeaddrinfo = (void (WSAAPI *)(struct addrinfo *))
+ GetProcAddress(ipv6_dll, "freeaddrinfo");
+ ipv6_getaddrinfo = (int (WSAAPI *)(const char *, const char *,
+ const struct addrinfo *,
+ struct addrinfo **))
+ GetProcAddress(ipv6_dll, "getaddrinfo");
+ ipv6_getnameinfo = (int (WSAAPI *)(const struct sockaddr *,
+ socklen_t, char *, DWORD,
+ char *, DWORD, int))
+ GetProcAddress(ipv6_dll, "getnameinfo");
+ if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
+ FreeLibrary(ipv6_dll);
+ ipv6_dll = NULL;
+ } else
+ break;
+ }
+ if (!ipv6_freeaddrinfo || !ipv6_getaddrinfo || !ipv6_getnameinfo) {
+ ipv6_freeaddrinfo = freeaddrinfo_stub;
+ ipv6_getaddrinfo = getaddrinfo_stub;
+ ipv6_getnameinfo = getnameinfo_stub;
+ }
+
+ atexit(socket_cleanup);
+ initialized = 1;
+}
+
+#undef gethostbyname
+struct hostent *mingw_gethostbyname(const char *host)
+{
+ ensure_socket_initialization();
+ return gethostbyname(host);
+}
+
+void mingw_freeaddrinfo(struct addrinfo *res)
+{
+ ipv6_freeaddrinfo(res);
+}
+
+int mingw_getaddrinfo(const char *node, const char *service,
+ const struct addrinfo *hints, struct addrinfo **res)
+{
+ ensure_socket_initialization();
+ return ipv6_getaddrinfo(node, service, hints, res);
+}
+
+int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
+ char *host, DWORD hostlen, char *serv, DWORD servlen,
+ int flags)
+{
+ ensure_socket_initialization();
+ return ipv6_getnameinfo(sa, salen, host, hostlen, serv, servlen, flags);
+}
+
+int mingw_socket(int domain, int type, int protocol)
+{
+ int sockfd;
+ SOCKET s = WSASocket(domain, type, protocol, NULL, 0, 0);
+ if (s == INVALID_SOCKET) {
+ /*
+ * WSAGetLastError() values are regular BSD error codes
+ * biased by WSABASEERR.
+ * However, strerror() does not know about networking
+ * specific errors, which are values beginning at 38 or so.
+ * Therefore, we choose to leave the biased error code
+ * in errno so that _if_ someone looks up the code somewhere,
+ * then it is at least the number that are usually listed.
+ */
+ errno = WSAGetLastError();
+ return -1;
+ }
+ /* convert into a file descriptor */
+ if ((sockfd = _open_osfhandle(s, O_RDWR|O_BINARY)) < 0) {
+ closesocket(s);
+ return error("unable to make a socket file descriptor: %s",
+ strerror(errno));
+ }
+ return sockfd;
+}
+
+#undef connect
+int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz)
+{
+ SOCKET s = (SOCKET)_get_osfhandle(sockfd);
+ return connect(s, sa, sz);
+}
+
#undef rename
int mingw_rename(const char *pold, const char *pnew)
{
+ DWORD attrs, gle;
+ int tries = 0;
+ static const int delay[] = { 0, 1, 10, 20, 40 };
+
/*
* Try native rename() first to get errno right.
* It is based on MoveFile(), which cannot overwrite existing files.
return 0;
if (errno != EEXIST)
return -1;
+repeat:
if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
return 0;
/* TODO: translate more errors */
- if (GetLastError() == ERROR_ACCESS_DENIED) {
- DWORD attrs = GetFileAttributes(pnew);
- if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY)) {
+ gle = GetLastError();
+ if (gle == ERROR_ACCESS_DENIED &&
+ (attrs = GetFileAttributes(pnew)) != INVALID_FILE_ATTRIBUTES) {
+ if (attrs & FILE_ATTRIBUTE_DIRECTORY) {
errno = EISDIR;
return -1;
}
+ if ((attrs & FILE_ATTRIBUTE_READONLY) &&
+ SetFileAttributes(pnew, attrs & ~FILE_ATTRIBUTE_READONLY)) {
+ if (MoveFileEx(pold, pnew, MOVEFILE_REPLACE_EXISTING))
+ return 0;
+ gle = GetLastError();
+ /* revert file attributes on failure */
+ SetFileAttributes(pnew, attrs);
+ }
+ }
+ if (tries < ARRAY_SIZE(delay) && gle == ERROR_ACCESS_DENIED) {
+ /*
+ * We assume that some other process had the source or
+ * destination file open at the wrong moment and retry.
+ * In order to give the other process a higher chance to
+ * complete its operation, we give up our time slice now.
+ * If we have to retry again, we do sleep a bit.
+ */
+ Sleep(delay[tries]);
+ tries++;
+ goto repeat;
}
errno = EACCES;
return -1;
}
+/*
+ * Note that this doesn't return the actual pagesize, but
+ * the allocation granularity. If future Windows specific git code
+ * needs the real getpagesize function, we need to find another solution.
+ */
+int mingw_getpagesize(void)
+{
+ SYSTEM_INFO si;
+ GetSystemInfo(&si);
+ return si.dwAllocationGranularity;
+}
+
struct passwd *getpwuid(int uid)
{
static char user_name[100];
* length to call the signal handler.
*/
-static __stdcall unsigned ticktack(void *dummy)
+static unsigned __stdcall ticktack(void *dummy)
{
while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) {
if (timer_fn == SIG_DFL)
#undef signal
sig_handler_t mingw_signal(int sig, sig_handler_t handler)
{
+ sig_handler_t old = timer_fn;
if (sig != SIGALRM)
return signal(sig, handler);
- sig_handler_t old = timer_fn;
timer_fn = handler;
return old;
}
+
+static const char *make_backslash_path(const char *path)
+{
+ static char buf[PATH_MAX + 1];
+ char *c;
+
+ if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
+ die("Too long path: %.*s", 60, path);
+
+ for (c = buf; *c; c++) {
+ if (*c == '/')
+ *c = '\\';
+ }
+ return buf;
+}
+
+void mingw_open_html(const char *unixpath)
+{
+ const char *htmlpath = make_backslash_path(unixpath);
+ printf("Launching default browser to display HTML ...\n");
+ ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
+}
+
+int link(const char *oldpath, const char *newpath)
+{
+ typedef BOOL (WINAPI *T)(const char*, const char*, LPSECURITY_ATTRIBUTES);
+ static T create_hard_link = NULL;
+ if (!create_hard_link) {
+ create_hard_link = (T) GetProcAddress(
+ GetModuleHandle("kernel32.dll"), "CreateHardLinkA");
+ if (!create_hard_link)
+ create_hard_link = (T)-1;
+ }
+ if (create_hard_link == (T)-1) {
+ errno = ENOSYS;
+ return -1;
+ }
+ if (!create_hard_link(newpath, oldpath, NULL)) {
+ errno = err_win_to_posix(GetLastError());
+ return -1;
+ }
+ return 0;
+}
+
+char *getpass(const char *prompt)
+{
+ struct strbuf buf = STRBUF_INIT;
+
+ fputs(prompt, stderr);
+ for (;;) {
+ char c = _getch();
+ if (c == '\r' || c == '\n')
+ break;
+ strbuf_addch(&buf, c);
+ }
+ fputs("\n", stderr);
+ return strbuf_detach(&buf, NULL);
+}
+
+#ifndef NO_MINGW_REPLACE_READDIR
+/* MinGW readdir implementation to avoid extra lstats for Git */
+struct mingw_DIR
+{
+ struct _finddata_t dd_dta; /* disk transfer area for this dir */
+ struct mingw_dirent dd_dir; /* Our own implementation, including d_type */
+ long dd_handle; /* _findnext handle */
+ int dd_stat; /* 0 = next entry to read is first entry, -1 = off the end, positive = 0 based index of next entry */
+ char dd_name[1]; /* given path for dir with search pattern (struct is extended) */
+};
+
+struct dirent *mingw_readdir(DIR *dir)
+{
+ WIN32_FIND_DATAA buf;
+ HANDLE handle;
+ struct mingw_DIR *mdir = (struct mingw_DIR*)dir;
+
+ if (!dir->dd_handle) {
+ errno = EBADF; /* No set_errno for mingw */
+ return NULL;
+ }
+
+ if (dir->dd_handle == (long)INVALID_HANDLE_VALUE && dir->dd_stat == 0)
+ {
+ DWORD lasterr;
+ handle = FindFirstFileA(dir->dd_name, &buf);
+ lasterr = GetLastError();
+ dir->dd_handle = (long)handle;
+ if (handle == INVALID_HANDLE_VALUE && (lasterr != ERROR_NO_MORE_FILES)) {
+ errno = err_win_to_posix(lasterr);
+ return NULL;
+ }
+ } else if (dir->dd_handle == (long)INVALID_HANDLE_VALUE) {
+ return NULL;
+ } else if (!FindNextFileA((HANDLE)dir->dd_handle, &buf)) {
+ DWORD lasterr = GetLastError();
+ FindClose((HANDLE)dir->dd_handle);
+ dir->dd_handle = (long)INVALID_HANDLE_VALUE;
+ /* POSIX says you shouldn't set errno when readdir can't
+ find any more files; so, if another error we leave it set. */
+ if (lasterr != ERROR_NO_MORE_FILES)
+ errno = err_win_to_posix(lasterr);
+ return NULL;
+ }
+
+ /* We get here if `buf' contains valid data. */
+ strcpy(dir->dd_dir.d_name, buf.cFileName);
+ ++dir->dd_stat;
+
+ /* Set file type, based on WIN32_FIND_DATA */
+ mdir->dd_dir.d_type = 0;
+ if (buf.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+ mdir->dd_dir.d_type |= DT_DIR;
+ else
+ mdir->dd_dir.d_type |= DT_REG;
+
+ return (struct dirent*)&dir->dd_dir;
+}
+#endif // !NO_MINGW_REPLACE_READDIR