Andrew's git - gitweb.git/blob

3c3a9d925e1ec9d44b5d38858c864f22bec8669c
   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#ifndef EWOULDBLOCK
  36#define EWOULDBLOCK EAGAIN
  37#endif
  38#define SHUT_WR SD_SEND
  39
  40#define SIGHUP 1
  41#define SIGQUIT 3
  42#define SIGKILL 9
  43#define SIGPIPE 13
  44#define SIGALRM 14
  45#define SIGCHLD 17
  46
  47#define F_GETFD 1
  48#define F_SETFD 2
  49#define FD_CLOEXEC 0x1
  50
  51#ifndef EAFNOSUPPORT
  52#define EAFNOSUPPORT WSAEAFNOSUPPORT
  53#endif
  54#ifndef ECONNABORTED
  55#define ECONNABORTED WSAECONNABORTED
  56#endif
  57
  58struct passwd {
  59        char *pw_name;
  60        char *pw_gecos;
  61        char *pw_dir;
  62};
  63
  64typedef void (__cdecl *sig_handler_t)(int);
  65struct sigaction {
  66        sig_handler_t sa_handler;
  67        unsigned sa_flags;
  68};
  69#define sigemptyset(x) (void)0
  70#define SA_RESTART 0
  71
  72struct itimerval {
  73        struct timeval it_value, it_interval;
  74};
  75#define ITIMER_REAL 0
  76
  77/*
  78 * sanitize preprocessor namespace polluted by Windows headers defining
  79 * macros which collide with git local versions
  80 */
  81#undef HELP_COMMAND /* from winuser.h */
  82
  83/*
  84 * trivial stubs
  85 */
  86
  87static inline int readlink(const char *path, char *buf, size_t bufsiz)
  88{ errno = ENOSYS; return -1; }
  89static inline int symlink(const char *oldpath, const char *newpath)
  90{ errno = ENOSYS; return -1; }
  91static inline int fchmod(int fildes, mode_t mode)
  92{ errno = ENOSYS; return -1; }
  93static inline pid_t fork(void)
  94{ errno = ENOSYS; return -1; }
  95static inline unsigned int alarm(unsigned int seconds)
  96{ return 0; }
  97static inline int fsync(int fd)
  98{ return _commit(fd); }
  99static inline pid_t getppid(void)
 100{ return 1; }
 101static inline void sync(void)
 102{}
 103static inline uid_t getuid(void)
 104{ return 1; }
 105static inline struct passwd *getpwnam(const char *name)
 106{ return NULL; }
 107static inline int fcntl(int fd, int cmd, ...)
 108{
 109        if (cmd == F_GETFD || cmd == F_SETFD)
 110                return 0;
 111        errno = EINVAL;
 112        return -1;
 113}
 114/* bash cannot reliably detect negative return codes as failure */
 115#define exit(code) exit((code) & 0xff)
 116
 117/*
 118 * simple adaptors
 119 */
 120
 121static inline int mingw_mkdir(const char *path, int mode)
 122{
 123        return mkdir(path);
 124}
 125#define mkdir mingw_mkdir
 126
 127#define WNOHANG 1
 128pid_t waitpid(pid_t pid, int *status, int options);
 129
 130#define kill mingw_kill
 131int mingw_kill(pid_t pid, int sig);
 132
 133#ifndef NO_OPENSSL
 134#include <openssl/ssl.h>
 135static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 136{
 137        return SSL_set_fd(ssl, _get_osfhandle(fd));
 138}
 139#define SSL_set_fd mingw_SSL_set_fd
 140
 141static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 142{
 143        return SSL_set_rfd(ssl, _get_osfhandle(fd));
 144}
 145#define SSL_set_rfd mingw_SSL_set_rfd
 146
 147static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 148{
 149        return SSL_set_wfd(ssl, _get_osfhandle(fd));
 150}
 151#define SSL_set_wfd mingw_SSL_set_wfd
 152#endif
 153
 154/*
 155 * implementations of missing functions
 156 */
 157
 158int pipe(int filedes[2]);
 159unsigned int sleep (unsigned int seconds);
 160int mkstemp(char *template);
 161int gettimeofday(struct timeval *tv, void *tz);
 162struct tm *gmtime_r(const time_t *timep, struct tm *result);
 163struct tm *localtime_r(const time_t *timep, struct tm *result);
 164int getpagesize(void);  /* defined in MinGW's libgcc.a */
 165struct passwd *getpwuid(uid_t uid);
 166int setitimer(int type, struct itimerval *in, struct itimerval *out);
 167int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 168int link(const char *oldpath, const char *newpath);
 169
 170/*
 171 * replacements of existing functions
 172 */
 173
 174int mingw_unlink(const char *pathname);
 175#define unlink mingw_unlink
 176
 177int mingw_rmdir(const char *path);
 178#define rmdir mingw_rmdir
 179
 180int mingw_open (const char *filename, int oflags, ...);
 181#define open mingw_open
 182
 183ssize_t mingw_write(int fd, const void *buf, size_t count);
 184#define write mingw_write
 185
 186int mingw_fgetc(FILE *stream);
 187#define fgetc mingw_fgetc
 188
 189FILE *mingw_fopen (const char *filename, const char *otype);
 190#define fopen mingw_fopen
 191
 192FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 193#define freopen mingw_freopen
 194
 195int mingw_fflush(FILE *stream);
 196#define fflush mingw_fflush
 197
 198char *mingw_getcwd(char *pointer, int len);
 199#define getcwd mingw_getcwd
 200
 201char *mingw_getenv(const char *name);
 202#define getenv mingw_getenv
 203
 204int mingw_gethostname(char *host, int namelen);
 205#define gethostname mingw_gethostname
 206
 207struct hostent *mingw_gethostbyname(const char *host);
 208#define gethostbyname mingw_gethostbyname
 209
 210void mingw_freeaddrinfo(struct addrinfo *res);
 211#define freeaddrinfo mingw_freeaddrinfo
 212
 213int mingw_getaddrinfo(const char *node, const char *service,
 214                      const struct addrinfo *hints, struct addrinfo **res);
 215#define getaddrinfo mingw_getaddrinfo
 216
 217int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 218                      char *host, DWORD hostlen, char *serv, DWORD servlen,
 219                      int flags);
 220#define getnameinfo mingw_getnameinfo
 221
 222int mingw_socket(int domain, int type, int protocol);
 223#define socket mingw_socket
 224
 225int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 226#define connect mingw_connect
 227
 228int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 229#define bind mingw_bind
 230
 231int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 232#define setsockopt mingw_setsockopt
 233
 234int mingw_shutdown(int sockfd, int how);
 235#define shutdown mingw_shutdown
 236
 237int mingw_listen(int sockfd, int backlog);
 238#define listen mingw_listen
 239
 240int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 241#define accept mingw_accept
 242
 243int mingw_rename(const char*, const char*);
 244#define rename mingw_rename
 245
 246#if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 247int mingw_getpagesize(void);
 248#define getpagesize mingw_getpagesize
 249#endif
 250
 251struct rlimit {
 252        unsigned int rlim_cur;
 253};
 254#define RLIMIT_NOFILE 0
 255
 256static inline int getrlimit(int resource, struct rlimit *rlp)
 257{
 258        if (resource != RLIMIT_NOFILE) {
 259                errno = EINVAL;
 260                return -1;
 261        }
 262
 263        rlp->rlim_cur = 2048;
 264        return 0;
 265}
 266
 267/*
 268 * Use mingw specific stat()/lstat()/fstat() implementations on Windows.
 269 */
 270#define off_t off64_t
 271#define lseek _lseeki64
 272
 273/* use struct stat with 64 bit st_size */
 274#define stat _stati64
 275int mingw_lstat(const char *file_name, struct stat *buf);
 276int mingw_stat(const char *file_name, struct stat *buf);
 277int mingw_fstat(int fd, struct stat *buf);
 278#define fstat mingw_fstat
 279#define lstat mingw_lstat
 280
 281#ifndef _stati64
 282# define _stati64(x,y) mingw_stat(x,y)
 283#elif defined (_USE_32BIT_TIME_T)
 284# define _stat32i64(x,y) mingw_stat(x,y)
 285#else
 286# define _stat64(x,y) mingw_stat(x,y)
 287#endif
 288
 289int mingw_utime(const char *file_name, const struct utimbuf *times);
 290#define utime mingw_utime
 291
 292pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 293                     const char *dir,
 294                     int fhin, int fhout, int fherr);
 295int mingw_execvp(const char *cmd, char *const *argv);
 296#define execvp mingw_execvp
 297int mingw_execv(const char *cmd, char *const *argv);
 298#define execv mingw_execv
 299
 300static inline unsigned int git_ntohl(unsigned int x)
 301{ return (unsigned int)ntohl(x); }
 302#define ntohl git_ntohl
 303
 304sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 305#define signal mingw_signal
 306
 307int mingw_raise(int sig);
 308#define raise mingw_raise
 309
 310/*
 311 * ANSI emulation wrappers
 312 */
 313
 314int winansi_fputs(const char *str, FILE *stream);
 315int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 316int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 317#define fputs winansi_fputs
 318#define printf(...) winansi_printf(__VA_ARGS__)
 319#define fprintf(...) winansi_fprintf(__VA_ARGS__)
 320
 321/*
 322 * git specific compatibility
 323 */
 324
 325#define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 326#define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 327static inline char *mingw_find_last_dir_sep(const char *path)
 328{
 329        char *ret = NULL;
 330        for (; *path; ++path)
 331                if (is_dir_sep(*path))
 332                        ret = (char *)path;
 333        return ret;
 334}
 335#define find_last_dir_sep mingw_find_last_dir_sep
 336#define PATH_SEP ';'
 337#define PRIuMAX "I64u"
 338
 339void mingw_open_html(const char *path);
 340#define open_html mingw_open_html
 341
 342/*
 343 * helpers
 344 */
 345
 346char **make_augmented_environ(const char *const *vars);
 347void free_environ(char **env);
 348
 349/*
 350 * A critical section used in the implementation of the spawn
 351 * functions (mingw_spawnv[p]e()) and waitpid(). Intialised in
 352 * the replacement main() macro below.
 353 */
 354extern CRITICAL_SECTION pinfo_cs;
 355
 356/*
 357 * A replacement of main() that ensures that argv[0] has a path
 358 * and that default fmode and std(in|out|err) are in binary mode
 359 */
 360
 361#define main(c,v) dummy_decl_mingw_main(); \
 362static int mingw_main(c,v); \
 363int main(int argc, char **argv) \
 364{ \
 365        extern CRITICAL_SECTION pinfo_cs; \
 366        _fmode = _O_BINARY; \
 367        _setmode(_fileno(stdin), _O_BINARY); \
 368        _setmode(_fileno(stdout), _O_BINARY); \
 369        _setmode(_fileno(stderr), _O_BINARY); \
 370        argv[0] = xstrdup(_pgmptr); \
 371        InitializeCriticalSection(&pinfo_cs); \
 372        return mingw_main(argc, argv); \
 373} \
 374static int mingw_main(c,v)
 375
 376/*
 377 * Used by Pthread API implementation for Windows
 378 */
 379extern int err_win_to_posix(DWORD winerr);