Andrew's git - gitweb.git/blob

   1#include <winsock2.h>
   2#include <ws2tcpip.h>
   3
   4/*
   5 * things that are not available in header files
   6 */
   7
   8typedef int pid_t;
   9typedef int uid_t;
  10typedef int socklen_t;
  11#define hstrerror strerror
  12
  13#define S_IFLNK    0120000 /* Symbolic link */
  14#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
  15#define S_ISSOCK(x) 0
  16
  17#define S_IRGRP 0
  18#define S_IWGRP 0
  19#define S_IXGRP 0
  20#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
  21#define S_IROTH 0
  22#define S_IWOTH 0
  23#define S_IXOTH 0
  24#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
  25
  26#define S_ISUID 0004000
  27#define S_ISGID 0002000
  28#define S_ISVTX 0001000
  29
  30#define WIFEXITED(x) 1
  31#define WIFSIGNALED(x) 0
  32#define WEXITSTATUS(x) ((x) & 0xff)
  33#define WTERMSIG(x) SIGTERM
  34
  35#define EWOULDBLOCK EAGAIN
  36#define SHUT_WR SD_SEND
  37
  38#define SIGHUP 1
  39#define SIGQUIT 3
  40#define SIGKILL 9
  41#define SIGPIPE 13
  42#define SIGALRM 14
  43#define SIGCHLD 17
  44
  45#define F_GETFD 1
  46#define F_SETFD 2
  47#define FD_CLOEXEC 0x1
  48
  49#define EAFNOSUPPORT WSAEAFNOSUPPORT
  50#define ECONNABORTED WSAECONNABORTED
  51
  52struct passwd {
  53        char *pw_name;
  54        char *pw_gecos;
  55        char *pw_dir;
  56};
  57
  58typedef void (__cdecl *sig_handler_t)(int);
  59struct sigaction {
  60        sig_handler_t sa_handler;
  61        unsigned sa_flags;
  62};
  63#define sigemptyset(x) (void)0
  64#define SA_RESTART 0
  65
  66struct itimerval {
  67        struct timeval it_value, it_interval;
  68};
  69#define ITIMER_REAL 0
  70
  71/*
  72 * sanitize preprocessor namespace polluted by Windows headers defining
  73 * macros which collide with git local versions
  74 */
  75#undef HELP_COMMAND /* from winuser.h */
  76
  77/*
  78 * trivial stubs
  79 */
  80
  81static inline int readlink(const char *path, char *buf, size_t bufsiz)
  82{ errno = ENOSYS; return -1; }
  83static inline int symlink(const char *oldpath, const char *newpath)
  84{ errno = ENOSYS; return -1; }
  85static inline int fchmod(int fildes, mode_t mode)
  86{ errno = ENOSYS; return -1; }
  87static inline pid_t fork(void)
  88{ errno = ENOSYS; return -1; }
  89static inline unsigned int alarm(unsigned int seconds)
  90{ return 0; }
  91static inline int fsync(int fd)
  92{ return _commit(fd); }
  93static inline pid_t getppid(void)
  94{ return 1; }
  95static inline void sync(void)
  96{}
  97static inline uid_t getuid(void)
  98{ return 1; }
  99static inline struct passwd *getpwnam(const char *name)
 100{ return NULL; }
 101static inline int fcntl(int fd, int cmd, ...)
 102{
 103        if (cmd == F_GETFD || cmd == F_SETFD)
 104                return 0;
 105        errno = EINVAL;
 106        return -1;
 107}
 108/* bash cannot reliably detect negative return codes as failure */
 109#define exit(code) exit((code) & 0xff)
 110
 111/*
 112 * simple adaptors
 113 */
 114
 115static inline int mingw_mkdir(const char *path, int mode)
 116{
 117        return mkdir(path);
 118}
 119#define mkdir mingw_mkdir
 120
 121#define WNOHANG 1
 122pid_t waitpid(pid_t pid, int *status, int options);
 123
 124#define kill mingw_kill
 125int mingw_kill(pid_t pid, int sig);
 126
 127#ifndef NO_OPENSSL
 128#include <openssl/ssl.h>
 129static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 130{
 131        return SSL_set_fd(ssl, _get_osfhandle(fd));
 132}
 133#define SSL_set_fd mingw_SSL_set_fd
 134
 135static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 136{
 137        return SSL_set_rfd(ssl, _get_osfhandle(fd));
 138}
 139#define SSL_set_rfd mingw_SSL_set_rfd
 140
 141static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 142{
 143        return SSL_set_wfd(ssl, _get_osfhandle(fd));
 144}
 145#define SSL_set_wfd mingw_SSL_set_wfd
 146#endif
 147
 148/*
 149 * implementations of missing functions
 150 */
 151
 152int pipe(int filedes[2]);
 153unsigned int sleep (unsigned int seconds);
 154int mkstemp(char *template);
 155int gettimeofday(struct timeval *tv, void *tz);
 156struct tm *gmtime_r(const time_t *timep, struct tm *result);
 157struct tm *localtime_r(const time_t *timep, struct tm *result);
 158int getpagesize(void);  /* defined in MinGW's libgcc.a */
 159struct passwd *getpwuid(uid_t uid);
 160int setitimer(int type, struct itimerval *in, struct itimerval *out);
 161int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 162int link(const char *oldpath, const char *newpath);
 163
 164/*
 165 * replacements of existing functions
 166 */
 167
 168int mingw_unlink(const char *pathname);
 169#define unlink mingw_unlink
 170
 171int mingw_rmdir(const char *path);
 172#define rmdir mingw_rmdir
 173
 174int mingw_open (const char *filename, int oflags, ...);
 175#define open mingw_open
 176
 177ssize_t mingw_write(int fd, const void *buf, size_t count);
 178#define write mingw_write
 179
 180int mingw_fgetc(FILE *stream);
 181#define fgetc mingw_fgetc
 182
 183FILE *mingw_fopen (const char *filename, const char *otype);
 184#define fopen mingw_fopen
 185
 186FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 187#define freopen mingw_freopen
 188
 189int mingw_fflush(FILE *stream);
 190#define fflush mingw_fflush
 191
 192char *mingw_getcwd(char *pointer, int len);
 193#define getcwd mingw_getcwd
 194
 195char *mingw_getenv(const char *name);
 196#define getenv mingw_getenv
 197
 198int mingw_gethostname(char *host, int namelen);
 199#define gethostname mingw_gethostname
 200
 201struct hostent *mingw_gethostbyname(const char *host);
 202#define gethostbyname mingw_gethostbyname
 203
 204void mingw_freeaddrinfo(struct addrinfo *res);
 205#define freeaddrinfo mingw_freeaddrinfo
 206
 207int mingw_getaddrinfo(const char *node, const char *service,
 208                      const struct addrinfo *hints, struct addrinfo **res);
 209#define getaddrinfo mingw_getaddrinfo
 210
 211int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 212                      char *host, DWORD hostlen, char *serv, DWORD servlen,
 213                      int flags);
 214#define getnameinfo mingw_getnameinfo
 215
 216int mingw_socket(int domain, int type, int protocol);
 217#define socket mingw_socket
 218
 219int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 220#define connect mingw_connect
 221
 222int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 223#define bind mingw_bind
 224
 225int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 226#define setsockopt mingw_setsockopt
 227
 228int mingw_shutdown(int sockfd, int how);
 229#define shutdown mingw_shutdown
 230
 231int mingw_listen(int sockfd, int backlog);
 232#define listen mingw_listen
 233
 234int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 235#define accept mingw_accept
 236
 237int mingw_rename(const char*, const char*);
 238#define rename mingw_rename
 239
 240#if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 241int mingw_getpagesize(void);
 242#define getpagesize mingw_getpagesize
 243#endif
 244
 245struct rlimit {
 246        unsigned int rlim_cur;
 247};
 248#define RLIMIT_NOFILE 0
 249
 250static inline int getrlimit(int resource, struct rlimit *rlp)
 251{
 252        if (resource != RLIMIT_NOFILE) {
 253                errno = EINVAL;
 254                return -1;
 255        }
 256
 257        rlp->rlim_cur = 2048;
 258        return 0;
 259}
 260
 261/* Use mingw_lstat() instead of lstat()/stat() and
 262 * mingw_fstat() instead of fstat() on Windows.
 263 */
 264#define off_t off64_t
 265#define lseek _lseeki64
 266#ifndef ALREADY_DECLARED_STAT_FUNCS
 267#define stat _stati64
 268int mingw_lstat(const char *file_name, struct stat *buf);
 269int mingw_stat(const char *file_name, struct stat *buf);
 270int mingw_fstat(int fd, struct stat *buf);
 271#define fstat mingw_fstat
 272#define lstat mingw_lstat
 273#define _stati64(x,y) mingw_stat(x,y)
 274#endif
 275
 276int mingw_utime(const char *file_name, const struct utimbuf *times);
 277#define utime mingw_utime
 278
 279pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 280                     const char *dir,
 281                     int fhin, int fhout, int fherr);
 282int mingw_execvp(const char *cmd, char *const *argv);
 283#define execvp mingw_execvp
 284int mingw_execv(const char *cmd, char *const *argv);
 285#define execv mingw_execv
 286
 287static inline unsigned int git_ntohl(unsigned int x)
 288{ return (unsigned int)ntohl(x); }
 289#define ntohl git_ntohl
 290
 291sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 292#define signal mingw_signal
 293
 294int mingw_raise(int sig);
 295#define raise mingw_raise
 296
 297/*
 298 * ANSI emulation wrappers
 299 */
 300
 301int winansi_fputs(const char *str, FILE *stream);
 302int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 303int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 304#define fputs winansi_fputs
 305#define printf(...) winansi_printf(__VA_ARGS__)
 306#define fprintf(...) winansi_fprintf(__VA_ARGS__)
 307
 308/*
 309 * git specific compatibility
 310 */
 311
 312#define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 313#define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 314static inline char *mingw_find_last_dir_sep(const char *path)
 315{
 316        char *ret = NULL;
 317        for (; *path; ++path)
 318                if (is_dir_sep(*path))
 319                        ret = (char *)path;
 320        return ret;
 321}
 322#define find_last_dir_sep mingw_find_last_dir_sep
 323#define PATH_SEP ';'
 324#define PRIuMAX "I64u"
 325
 326void mingw_open_html(const char *path);
 327#define open_html mingw_open_html
 328
 329/*
 330 * helpers
 331 */
 332
 333char **make_augmented_environ(const char *const *vars);
 334void free_environ(char **env);
 335
 336/*
 337 * A critical section used in the implementation of the spawn
 338 * functions (mingw_spawnv[p]e()) and waitpid(). Intialised in
 339 * the replacement main() macro below.
 340 */
 341extern CRITICAL_SECTION pinfo_cs;
 342
 343/*
 344 * A replacement of main() that ensures that argv[0] has a path
 345 * and that default fmode and std(in|out|err) are in binary mode
 346 */
 347
 348#define main(c,v) dummy_decl_mingw_main(); \
 349static int mingw_main(c,v); \
 350int main(int argc, char **argv) \
 351{ \
 352        extern CRITICAL_SECTION pinfo_cs; \
 353        _fmode = _O_BINARY; \
 354        _setmode(_fileno(stdin), _O_BINARY); \
 355        _setmode(_fileno(stdout), _O_BINARY); \
 356        _setmode(_fileno(stderr), _O_BINARY); \
 357        argv[0] = xstrdup(_pgmptr); \
 358        InitializeCriticalSection(&pinfo_cs); \
 359        return mingw_main(argc, argv); \
 360} \
 361static int mingw_main(c,v)
 362
 363/*
 364 * Used by Pthread API implementation for Windows
 365 */
 366extern int err_win_to_posix(DWORD winerr);