#include <conio.h>
#include "../strbuf.h"
-#include <shellapi.h>
-
-static int err_win_to_posix(DWORD winerr)
+int err_win_to_posix(DWORD winerr)
{
int error = ENOSYS;
switch(winerr) {
return fd;
}
-static inline time_t filetime_to_time_t(const FILETIME *ft)
+#undef write
+ssize_t mingw_write(int fd, const void *buf, size_t count)
+{
+ /*
+ * While write() calls to a file on a local disk are translated
+ * into WriteFile() calls with a maximum size of 64KB on Windows
+ * XP and 256KB on Vista, no such cap is placed on writes to
+ * files over the network on Windows XP. Unfortunately, there
+ * seems to be a limit of 32MB-28KB on X64 and 64MB-32KB on x86;
+ * bigger writes fail on Windows XP.
+ * So we cap to a nice 31MB here to avoid write failures over
+ * the net without changing the number of WriteFile() calls in
+ * the local case.
+ */
+ return write(fd, buf, min(count, 31 * 1024 * 1024));
+}
+
+#undef fopen
+FILE *mingw_fopen (const char *filename, const char *otype)
+{
+ if (!strcmp(filename, "/dev/null"))
+ filename = "nul";
+ return fopen(filename, otype);
+}
+
+#undef freopen
+FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream)
+{
+ if (filename && !strcmp(filename, "/dev/null"))
+ filename = "nul";
+ return freopen(filename, otype, stream);
+}
+
+/*
+ * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC.
+ * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch.
+ */
+static inline long long filetime_to_hnsec(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;
+ /* Windows to Unix Epoch conversion */
+ return winTime - 116444736000000000LL;
+}
+
+static inline time_t filetime_to_time_t(const FILETIME *ft)
+{
+ return (time_t)(filetime_to_hnsec(ft) / 10000000);
}
/* We keep the do_lstat code in a separate function to avoid recursion.
int fh, rc;
/* must have write permission */
- if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0)
- return -1;
+ DWORD attrs = GetFileAttributes(file_name);
+ if (attrs != INVALID_FILE_ATTRIBUTES &&
+ (attrs & FILE_ATTRIBUTE_READONLY)) {
+ /* ignore errors here; open() will report them */
+ SetFileAttributes(file_name, attrs & ~FILE_ATTRIBUTE_READONLY);
+ }
+
+ if ((fh = open(file_name, O_RDWR | O_BINARY)) < 0) {
+ rc = -1;
+ goto revert_attrs;
+ }
time_t_to_filetime(times->modtime, &mft);
time_t_to_filetime(times->actime, &aft);
} else
rc = 0;
close(fh);
+
+revert_attrs:
+ if (attrs != INVALID_FILE_ATTRIBUTES &&
+ (attrs & FILE_ATTRIBUTE_READONLY)) {
+ /* ignore errors again */
+ SetFileAttributes(file_name, attrs);
+ }
return rc;
}
int gettimeofday(struct timeval *tv, void *tz)
{
- SYSTEMTIME st;
- struct tm tm;
- GetSystemTime(&st);
- tm.tm_year = st.wYear-1900;
- tm.tm_mon = st.wMonth-1;
- tm.tm_mday = st.wDay;
- tm.tm_hour = st.wHour;
- tm.tm_min = st.wMinute;
- tm.tm_sec = st.wSecond;
- tv->tv_sec = tm_to_time_t(&tm);
- if (tv->tv_sec < 0)
- return -1;
- tv->tv_usec = st.wMilliseconds*1000;
+ FILETIME ft;
+ long long hnsec;
+
+ GetSystemTimeAsFileTime(&ft);
+ hnsec = filetime_to_hnsec(&ft);
+ tv->tv_sec = hnsec / 10000000;
+ tv->tv_usec = (hnsec % 10000000) / 10;
return 0;
}
int pipe(int filedes[2])
{
- int fd;
- HANDLE h[2], parent;
-
- if (_pipe(filedes, 8192, 0) < 0)
- return -1;
-
- parent = GetCurrentProcess();
+ HANDLE h[2];
- if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[0]),
- parent, &h[0], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
- close(filedes[0]);
- close(filedes[1]);
- return -1;
- }
- if (!DuplicateHandle (parent, (HANDLE)_get_osfhandle(filedes[1]),
- parent, &h[1], 0, FALSE, DUPLICATE_SAME_ACCESS)) {
- close(filedes[0]);
- close(filedes[1]);
- CloseHandle(h[0]);
+ /* this creates non-inheritable handles */
+ if (!CreatePipe(&h[0], &h[1], NULL, 8192)) {
+ errno = err_win_to_posix(GetLastError());
return -1;
}
- fd = _open_osfhandle((int)h[0], O_NOINHERIT);
- if (fd < 0) {
- close(filedes[0]);
- close(filedes[1]);
+ filedes[0] = _open_osfhandle((int)h[0], O_NOINHERIT);
+ if (filedes[0] < 0) {
CloseHandle(h[0]);
CloseHandle(h[1]);
return -1;
}
- close(filedes[0]);
- filedes[0] = fd;
- fd = _open_osfhandle((int)h[1], O_NOINHERIT);
- if (fd < 0) {
+ filedes[1] = _open_osfhandle((int)h[1], O_NOINHERIT);
+ if (filedes[0] < 0) {
close(filedes[0]);
- close(filedes[1]);
CloseHandle(h[1]);
return -1;
}
- close(filedes[1]);
- filedes[1] = fd;
return 0;
}
return strcasecmp(*ea, *eb);
}
-static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
- int prepend_cmd)
+static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **env,
+ const char *dir,
+ int prepend_cmd, int fhin, int fhout, int fherr)
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
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);
+ si.hStdInput = (HANDLE) _get_osfhandle(fhin);
+ si.hStdOutput = (HANDLE) _get_osfhandle(fhout);
+ si.hStdError = (HANDLE) _get_osfhandle(fherr);
/* concatenate argv, quoting args as we go */
strbuf_init(&args, 0);
memset(&pi, 0, sizeof(pi));
ret = CreateProcess(cmd, args.buf, NULL, NULL, TRUE, flags,
- env ? envblk.buf : NULL, NULL, &si, &pi);
+ env ? envblk.buf : NULL, dir, &si, &pi);
if (env)
strbuf_release(&envblk);
return (pid_t)pi.hProcess;
}
-pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env)
+static pid_t mingw_spawnve(const char *cmd, const char **argv, char **env,
+ int prepend_cmd)
+{
+ return mingw_spawnve_fd(cmd, argv, env, NULL, prepend_cmd, 0, 1, 2);
+}
+
+pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
+ const char *dir,
+ int fhin, int fhout, int fherr)
{
pid_t pid;
char **path = get_path_split();
pid = -1;
}
else {
- pid = mingw_spawnve(iprog, argv, env, 1);
+ pid = mingw_spawnve_fd(iprog, argv, env, dir, 1,
+ fhin, fhout, fherr);
free(iprog);
}
argv[0] = argv0;
}
else
- pid = mingw_spawnve(prog, argv, env, 0);
+ pid = mingw_spawnve_fd(prog, argv, env, dir, 0,
+ fhin, fhout, fherr);
free(prog);
}
free_path_split(path);
return env;
}
-/* this is the first function to call into WS_32; initialize it */
-#undef gethostbyname
-struct hostent *mingw_gethostbyname(const char *host)
+/*
+ * 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());
- atexit((void(*)(void)) WSACleanup);
+
+ 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;
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];
void mingw_open_html(const char *unixpath)
{
const char *htmlpath = make_backslash_path(unixpath);
+ typedef HINSTANCE (WINAPI *T)(HWND, const char *,
+ const char *, const char *, const char *, INT);
+ T ShellExecute;
+ HMODULE shell32;
+
+ shell32 = LoadLibrary("shell32.dll");
+ if (!shell32)
+ die("cannot load shell32.dll");
+ ShellExecute = (T)GetProcAddress(shell32, "ShellExecuteA");
+ if (!ShellExecute)
+ die("cannot run browser");
+
printf("Launching default browser to display HTML ...\n");
ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
+
+ FreeLibrary(shell32);
}
int link(const char *oldpath, const char *newpath)
projects / git.git / blobdiff