builtin-mailinfo.c: check error status from rewind and ftruncate
[git/spearce.git] / compat / mingw.h
blob5b5258bcebbbead7e4ed15a4dea7bf755739b98e
1 #include <winsock2.h>
3 /*
4 * things that are not available in header files
5 */
7 typedef int pid_t;
8 #define hstrerror strerror
10 #define S_IFLNK 0120000 /* Symbolic link */
11 #define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
12 #define S_ISSOCK(x) 0
13 #define S_IRGRP 0
14 #define S_IWGRP 0
15 #define S_IXGRP 0
16 #define S_ISGID 0
17 #define S_IROTH 0
18 #define S_IXOTH 0
20 #define WIFEXITED(x) 1
21 #define WIFSIGNALED(x) 0
22 #define WEXITSTATUS(x) ((x) & 0xff)
23 #define WTERMSIG(x) SIGTERM
25 #define SIGHUP 1
26 #define SIGQUIT 3
27 #define SIGKILL 9
28 #define SIGPIPE 13
29 #define SIGALRM 14
30 #define SIGCHLD 17
32 #define F_GETFD 1
33 #define F_SETFD 2
34 #define FD_CLOEXEC 0x1
36 struct passwd {
37 char *pw_name;
38 char *pw_gecos;
39 char *pw_dir;
42 extern char *getpass(const char *prompt);
44 #ifndef POLLIN
45 struct pollfd {
46 int fd; /* file descriptor */
47 short events; /* requested events */
48 short revents; /* returned events */
50 #define POLLIN 1
51 #define POLLHUP 2
52 #endif
54 typedef void (__cdecl *sig_handler_t)(int);
55 struct sigaction {
56 sig_handler_t sa_handler;
57 unsigned sa_flags;
59 #define sigemptyset(x) (void)0
60 #define SA_RESTART 0
62 struct itimerval {
63 struct timeval it_value, it_interval;
65 #define ITIMER_REAL 0
68 * trivial stubs
71 static inline int readlink(const char *path, char *buf, size_t bufsiz)
72 { errno = ENOSYS; return -1; }
73 static inline int symlink(const char *oldpath, const char *newpath)
74 { errno = ENOSYS; return -1; }
75 static inline int fchmod(int fildes, mode_t mode)
76 { errno = ENOSYS; return -1; }
77 static inline int fork(void)
78 { errno = ENOSYS; return -1; }
79 static inline unsigned int alarm(unsigned int seconds)
80 { return 0; }
81 static inline int fsync(int fd)
82 { return 0; }
83 static inline int getppid(void)
84 { return 1; }
85 static inline void sync(void)
87 static inline int getuid()
88 { return 1; }
89 static inline struct passwd *getpwnam(const char *name)
90 { return NULL; }
91 static inline int fcntl(int fd, int cmd, long arg)
93 if (cmd == F_GETFD || cmd == F_SETFD)
94 return 0;
95 errno = EINVAL;
96 return -1;
98 /* bash cannot reliably detect negative return codes as failure */
99 #define exit(code) exit((code) & 0xff)
102 * simple adaptors
105 static inline int mingw_mkdir(const char *path, int mode)
107 return mkdir(path);
109 #define mkdir mingw_mkdir
111 static inline int mingw_unlink(const char *pathname)
113 /* read-only files cannot be removed */
114 chmod(pathname, 0666);
115 return unlink(pathname);
117 #define unlink mingw_unlink
119 static inline int waitpid(pid_t pid, int *status, unsigned options)
121 if (options == 0)
122 return _cwait(status, pid, 0);
123 errno = EINVAL;
124 return -1;
128 * implementations of missing functions
131 int pipe(int filedes[2]);
132 unsigned int sleep (unsigned int seconds);
133 int mkstemp(char *template);
134 int gettimeofday(struct timeval *tv, void *tz);
135 int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
136 struct tm *gmtime_r(const time_t *timep, struct tm *result);
137 struct tm *localtime_r(const time_t *timep, struct tm *result);
138 int getpagesize(void); /* defined in MinGW's libgcc.a */
139 struct passwd *getpwuid(int uid);
140 int setitimer(int type, struct itimerval *in, struct itimerval *out);
141 int sigaction(int sig, struct sigaction *in, struct sigaction *out);
142 int link(const char *oldpath, const char *newpath);
145 * replacements of existing functions
148 int mingw_open (const char *filename, int oflags, ...);
149 #define open mingw_open
151 char *mingw_getcwd(char *pointer, int len);
152 #define getcwd mingw_getcwd
154 char *mingw_getenv(const char *name);
155 #define getenv mingw_getenv
157 struct hostent *mingw_gethostbyname(const char *host);
158 #define gethostbyname mingw_gethostbyname
160 int mingw_socket(int domain, int type, int protocol);
161 #define socket mingw_socket
163 int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
164 #define connect mingw_connect
166 int mingw_rename(const char*, const char*);
167 #define rename mingw_rename
169 #ifdef USE_WIN32_MMAP
170 int mingw_getpagesize(void);
171 #define getpagesize mingw_getpagesize
172 #endif
174 /* Use mingw_lstat() instead of lstat()/stat() and
175 * mingw_fstat() instead of fstat() on Windows.
177 #define off_t off64_t
178 #define stat _stati64
179 #define lseek _lseeki64
180 int mingw_lstat(const char *file_name, struct stat *buf);
181 int mingw_fstat(int fd, struct stat *buf);
182 #define fstat mingw_fstat
183 #define lstat mingw_lstat
184 #define _stati64(x,y) mingw_lstat(x,y)
186 int mingw_utime(const char *file_name, const struct utimbuf *times);
187 #define utime mingw_utime
189 pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
190 void mingw_execvp(const char *cmd, char *const *argv);
191 #define execvp mingw_execvp
193 static inline unsigned int git_ntohl(unsigned int x)
194 { return (unsigned int)ntohl(x); }
195 #define ntohl git_ntohl
197 sig_handler_t mingw_signal(int sig, sig_handler_t handler);
198 #define signal mingw_signal
201 * ANSI emulation wrappers
204 int winansi_fputs(const char *str, FILE *stream);
205 int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
206 int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
207 #define fputs winansi_fputs
208 #define printf(...) winansi_printf(__VA_ARGS__)
209 #define fprintf(...) winansi_fprintf(__VA_ARGS__)
212 * git specific compatibility
215 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
216 #define is_dir_sep(c) ((c) == '/' || (c) == '\\')
217 #define PATH_SEP ';'
218 #define PRIuMAX "I64u"
220 void mingw_open_html(const char *path);
221 #define open_html mingw_open_html
224 * helpers
227 char **make_augmented_environ(const char *const *vars);
228 void free_environ(char **env);
231 * A replacement of main() that ensures that argv[0] has a path
232 * and that default fmode and std(in|out|err) are in binary mode
235 #define main(c,v) dummy_decl_mingw_main(); \
236 static int mingw_main(); \
237 int main(int argc, const char **argv) \
239 _fmode = _O_BINARY; \
240 _setmode(_fileno(stdin), _O_BINARY); \
241 _setmode(_fileno(stdout), _O_BINARY); \
242 _setmode(_fileno(stderr), _O_BINARY); \
243 argv[0] = xstrdup(_pgmptr); \
244 return mingw_main(argc, argv); \
246 static int mingw_main(c,v)
248 #ifndef NO_MINGW_REPLACE_READDIR
250 * A replacement of readdir, to ensure that it reads the file type at
251 * the same time. This avoid extra unneeded lstats in git on MinGW
253 #undef DT_UNKNOWN
254 #undef DT_DIR
255 #undef DT_REG
256 #undef DT_LNK
257 #define DT_UNKNOWN 0
258 #define DT_DIR 1
259 #define DT_REG 2
260 #define DT_LNK 3
262 struct mingw_dirent
264 long d_ino; /* Always zero. */
265 union {
266 unsigned short d_reclen; /* Always zero. */
267 unsigned char d_type; /* Reimplementation adds this */
269 unsigned short d_namlen; /* Length of name in d_name. */
270 char d_name[FILENAME_MAX]; /* File name. */
272 #define dirent mingw_dirent
273 #define readdir(x) mingw_readdir(x)
274 struct dirent *mingw_readdir(DIR *dir);
275 #endif // !NO_MINGW_REPLACE_READDIR