diff options
Diffstat (limited to 'compat/mingw.c')
| -rw-r--r-- | compat/mingw.c | 178 |
1 files changed, 136 insertions, 42 deletions
diff --git a/compat/mingw.c b/compat/mingw.c index f6e9ff7762..b673625580 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -178,7 +178,7 @@ static int ask_yes_no_if_possible(const char *format, ...) vsnprintf(question, sizeof(question), format, args); va_end(args); - if ((retry_hook[0] = getenv("GIT_ASK_YESNO"))) { + if ((retry_hook[0] = mingw_getenv("GIT_ASK_YESNO"))) { retry_hook[1] = question; return !run_command_v_opt(retry_hook, 0); } @@ -256,6 +256,8 @@ int mingw_rmdir(const char *pathname) while ((ret = rmdir(pathname)) == -1 && tries < ARRAY_SIZE(delay)) { if (!is_file_in_use_error(GetLastError())) + errno = err_win_to_posix(GetLastError()); + if (errno != EACCES) break; if (!is_dir_empty(pathname)) { errno = ENOTEMPTY; @@ -271,7 +273,7 @@ int mingw_rmdir(const char *pathname) Sleep(delay[tries]); tries++; } - while (ret == -1 && is_file_in_use_error(GetLastError()) && + while (ret == -1 && errno == EACCES && is_file_in_use_error(GetLastError()) && ask_yes_no_if_possible("Deletion of directory '%s' failed. " "Should I try again?", pathname)) ret = rmdir(pathname); @@ -319,6 +321,31 @@ ssize_t mingw_write(int fd, const void *buf, size_t count) return write(fd, buf, min(count, 31 * 1024 * 1024)); } +static BOOL WINAPI ctrl_ignore(DWORD type) +{ + return TRUE; +} + +#undef fgetc +int mingw_fgetc(FILE *stream) +{ + int ch; + if (!isatty(_fileno(stream))) + return fgetc(stream); + + SetConsoleCtrlHandler(ctrl_ignore, TRUE); + while (1) { + ch = fgetc(stream); + if (ch != EOF || GetLastError() != ERROR_OPERATION_ABORTED) + break; + + /* Ctrl+C was pressed, simulate SIGINT and retry */ + mingw_raise(SIGINT); + } + SetConsoleCtrlHandler(ctrl_ignore, FALSE); + return ch; +} + #undef fopen FILE *mingw_fopen (const char *filename, const char *otype) { @@ -335,6 +362,28 @@ FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream) return freopen(filename, otype, stream); } +#undef fflush +int mingw_fflush(FILE *stream) +{ + int ret = fflush(stream); + + /* + * write() is used behind the scenes of stdio output functions. + * Since git code does not check for errors after each stdio write + * operation, it can happen that write() is called by a later + * stdio function even if an earlier write() call failed. In the + * case of a pipe whose readable end was closed, only the first + * call to write() reports EPIPE on Windows. Subsequent write() + * calls report EINVAL. It is impossible to notice whether this + * fflush invocation triggered such a case, therefore, we have to + * catch all EINVAL errors whole-sale. + */ + if (ret && errno == EINVAL) + errno = EPIPE; + + return ret; +} + /* * The unit of FILETIME is 100-nanoseconds since January 1, 1601, UTC. * Returns the 100-nanoseconds ("hekto nanoseconds") since the epoch. @@ -599,19 +648,6 @@ char *mingw_getcwd(char *pointer, int len) 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) @@ -711,7 +747,7 @@ static const char *parse_interpreter(const char *cmd) */ static char **get_path_split(void) { - char *p, **path, *envpath = getenv("PATH"); + char *p, **path, *envpath = mingw_getenv("PATH"); int i, n = 0; if (!envpath || !*envpath) @@ -1016,7 +1052,7 @@ static void mingw_execve(const char *cmd, char *const *argv, char *const *env) } } -void mingw_execvp(const char *cmd, char *const *argv) +int mingw_execvp(const char *cmd, char *const *argv) { char **path = get_path_split(); char *prog = path_lookup(cmd, path, 0); @@ -1028,11 +1064,13 @@ void mingw_execvp(const char *cmd, char *const *argv) errno = ENOENT; free_path_split(path); + return -1; } -void mingw_execv(const char *cmd, char *const *argv) +int mingw_execv(const char *cmd, char *const *argv) { mingw_execve(cmd, argv, environ); + return -1; } int mingw_kill(pid_t pid, int sig) @@ -1128,6 +1166,36 @@ char **make_augmented_environ(const char *const *vars) return env; } +#undef getenv + +/* + * The system's getenv looks up the name in a case-insensitive manner. + * This version tries a case-sensitive lookup and falls back to + * case-insensitive if nothing was found. This is necessary because, + * as a prominent example, CMD sets 'Path', but not 'PATH'. + * Warning: not thread-safe. + */ +static char *getenv_cs(const char *name) +{ + size_t len = strlen(name); + int i = lookup_env(environ, name, len); + if (i >= 0) + return environ[i] + len + 1; /* skip past name and '=' */ + return getenv(name); +} + +char *mingw_getenv(const char *name) +{ + char *result = getenv_cs(name); + if (!result && !strcmp(name, "TMPDIR")) { + /* on Windows it is TMP and TEMP */ + result = getenv_cs("TMP"); + if (!result) + result = getenv_cs("TEMP"); + } + return result; +} + /* * Note, this isn't a complete replacement for getaddrinfo. It assumes * that service contains a numerical port, or that it is null. It @@ -1166,7 +1234,7 @@ static int WSAAPI getaddrinfo_stub(const char *node, const char *service, } ai->ai_addrlen = sizeof(struct sockaddr_in); if (hints && (hints->ai_flags & AI_CANONNAME)) - ai->ai_canonname = h ? strdup(h->h_name) : NULL; + ai->ai_canonname = h ? xstrdup(h->h_name) : NULL; else ai->ai_canonname = NULL; @@ -1304,6 +1372,13 @@ static void ensure_socket_initialization(void) initialized = 1; } +#undef gethostname +int mingw_gethostname(char *name, int namelen) +{ + ensure_socket_initialization(); + return gethostname(name, namelen); +} + #undef gethostbyname struct hostent *mingw_gethostbyname(const char *host) { @@ -1498,7 +1573,7 @@ static HANDLE timer_event; static HANDLE timer_thread; static int timer_interval; static int one_shot; -static sig_handler_t timer_fn = SIG_DFL; +static sig_handler_t timer_fn = SIG_DFL, sigint_fn = SIG_DFL; /* The timer works like this: * The thread, ticktack(), is a trivial routine that most of the time @@ -1512,10 +1587,7 @@ static sig_handler_t timer_fn = SIG_DFL; static unsigned __stdcall ticktack(void *dummy) { while (WaitForSingleObject(timer_event, timer_interval) == WAIT_TIMEOUT) { - if (timer_fn == SIG_DFL) - die("Alarm"); - if (timer_fn != SIG_IGN) - timer_fn(SIGALRM); + mingw_raise(SIGALRM); if (one_shot) break; } @@ -1606,12 +1678,49 @@ int sigaction(int sig, struct sigaction *in, struct sigaction *out) sig_handler_t mingw_signal(int sig, sig_handler_t handler) { sig_handler_t old = timer_fn; - if (sig != SIGALRM) + + switch (sig) { + case SIGALRM: + timer_fn = handler; + break; + + case SIGINT: + sigint_fn = handler; + break; + + default: return signal(sig, handler); - timer_fn = handler; + } + return old; } +#undef raise +int mingw_raise(int sig) +{ + switch (sig) { + case SIGALRM: + if (timer_fn == SIG_DFL) { + if (isatty(STDERR_FILENO)) + fputs("Alarm clock\n", stderr); + exit(128 + SIGALRM); + } else if (timer_fn != SIG_IGN) + timer_fn(SIGALRM); + return 0; + + case SIGINT: + if (sigint_fn == SIG_DFL) + exit(128 + SIGINT); + else if (sigint_fn != SIG_IGN) + sigint_fn(SIGINT); + return 0; + + default: + return raise(sig); + } +} + + static const char *make_backslash_path(const char *path) { static char buf[PATH_MAX + 1]; @@ -1673,22 +1782,7 @@ int link(const char *oldpath, const char *newpath) 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); -} - -pid_t waitpid(pid_t pid, int *status, unsigned options) +pid_t waitpid(pid_t pid, int *status, int options) { HANDLE h = OpenProcess(SYNCHRONIZE | PROCESS_QUERY_INFORMATION, FALSE, pid); |