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#define S_ISUID 0
  26#define S_ISGID 0
  27#define S_ISVTX 0
  28
  29#define WIFEXITED(x) 1
  30#define WIFSIGNALED(x) 0
  31#define WEXITSTATUS(x) ((x) & 0xff)
  32#define WTERMSIG(x) SIGTERM
  33
  34#define SIGHUP 1
  35#define SIGQUIT 3
  36#define SIGKILL 9
  37#define SIGPIPE 13
  38#define SIGALRM 14
  39#define SIGCHLD 17
  40
  41#define F_GETFD 1
  42#define F_SETFD 2
  43#define FD_CLOEXEC 0x1
  44
  45#define EAFNOSUPPORT WSAEAFNOSUPPORT
  46#define ECONNABORTED WSAECONNABORTED
  47
  48struct passwd {
  49        char *pw_name;
  50        char *pw_gecos;
  51        char *pw_dir;
  52};
  53
  54extern char *getpass(const char *prompt);
  55
  56typedef void (__cdecl *sig_handler_t)(int);
  57struct sigaction {
  58        sig_handler_t sa_handler;
  59        unsigned sa_flags;
  60};
  61#define sigemptyset(x) (void)0
  62#define SA_RESTART 0
  63
  64struct itimerval {
  65        struct timeval it_value, it_interval;
  66};
  67#define ITIMER_REAL 0
  68
  69/*
  70 * sanitize preprocessor namespace polluted by Windows headers defining
  71 * macros which collide with git local versions
  72 */
  73#undef HELP_COMMAND /* from winuser.h */
  74
  75/*
  76 * trivial stubs
  77 */
  78
  79static inline int readlink(const char *path, char *buf, size_t bufsiz)
  80{ errno = ENOSYS; return -1; }
  81static inline int symlink(const char *oldpath, const char *newpath)
  82{ errno = ENOSYS; return -1; }
  83static inline int fchmod(int fildes, mode_t mode)
  84{ errno = ENOSYS; return -1; }
  85static inline pid_t fork(void)
  86{ errno = ENOSYS; return -1; }
  87static inline unsigned int alarm(unsigned int seconds)
  88{ return 0; }
  89static inline int fsync(int fd)
  90{ return _commit(fd); }
  91static inline pid_t getppid(void)
  92{ return 1; }
  93static inline void sync(void)
  94{}
  95static inline uid_t getuid(void)
  96{ return 1; }
  97static inline struct passwd *getpwnam(const char *name)
  98{ return NULL; }
  99static inline int fcntl(int fd, int cmd, ...)
 100{
 101        if (cmd == F_GETFD || cmd == F_SETFD)
 102                return 0;
 103        errno = EINVAL;
 104        return -1;
 105}
 106/* bash cannot reliably detect negative return codes as failure */
 107#define exit(code) exit((code) & 0xff)
 108
 109/*
 110 * simple adaptors
 111 */
 112
 113static inline int mingw_mkdir(const char *path, int mode)
 114{
 115        return mkdir(path);
 116}
 117#define mkdir mingw_mkdir
 118
 119static inline int mingw_unlink(const char *pathname)
 120{
 121        /* read-only files cannot be removed */
 122        chmod(pathname, 0666);
 123        return unlink(pathname);
 124}
 125#define unlink mingw_unlink
 126
 127#define WNOHANG 1
 128pid_t waitpid(pid_t pid, int *status, unsigned 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_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
 180FILE *mingw_fopen (const char *filename, const char *otype);
 181#define fopen mingw_fopen
 182
 183FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 184#define freopen mingw_freopen
 185
 186char *mingw_getcwd(char *pointer, int len);
 187#define getcwd mingw_getcwd
 188
 189char *mingw_getenv(const char *name);
 190#define getenv mingw_getenv
 191
 192struct hostent *mingw_gethostbyname(const char *host);
 193#define gethostbyname mingw_gethostbyname
 194
 195void mingw_freeaddrinfo(struct addrinfo *res);
 196#define freeaddrinfo mingw_freeaddrinfo
 197
 198int mingw_getaddrinfo(const char *node, const char *service,
 199                      const struct addrinfo *hints, struct addrinfo **res);
 200#define getaddrinfo mingw_getaddrinfo
 201
 202int mingw_getnameinfo(const struct sockaddr *sa, socklen_t salen,
 203                      char *host, DWORD hostlen, char *serv, DWORD servlen,
 204                      int flags);
 205#define getnameinfo mingw_getnameinfo
 206
 207int mingw_socket(int domain, int type, int protocol);
 208#define socket mingw_socket
 209
 210int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 211#define connect mingw_connect
 212
 213int mingw_bind(int sockfd, struct sockaddr *sa, size_t sz);
 214#define bind mingw_bind
 215
 216int mingw_setsockopt(int sockfd, int lvl, int optname, void *optval, int optlen);
 217#define setsockopt mingw_setsockopt
 218
 219int mingw_listen(int sockfd, int backlog);
 220#define listen mingw_listen
 221
 222int mingw_accept(int sockfd, struct sockaddr *sa, socklen_t *sz);
 223#define accept mingw_accept
 224
 225int mingw_rename(const char*, const char*);
 226#define rename mingw_rename
 227
 228#if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 229int mingw_getpagesize(void);
 230#define getpagesize mingw_getpagesize
 231#endif
 232
 233/* Use mingw_lstat() instead of lstat()/stat() and
 234 * mingw_fstat() instead of fstat() on Windows.
 235 */
 236#define off_t off64_t
 237#define lseek _lseeki64
 238#ifndef ALREADY_DECLARED_STAT_FUNCS
 239#define stat _stati64
 240int mingw_lstat(const char *file_name, struct stat *buf);
 241int mingw_stat(const char *file_name, struct stat *buf);
 242int mingw_fstat(int fd, struct stat *buf);
 243#define fstat mingw_fstat
 244#define lstat mingw_lstat
 245#define _stati64(x,y) mingw_stat(x,y)
 246#endif
 247
 248int mingw_utime(const char *file_name, const struct utimbuf *times);
 249#define utime mingw_utime
 250
 251pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 252                     const char *dir,
 253                     int fhin, int fhout, int fherr);
 254void mingw_execvp(const char *cmd, char *const *argv);
 255#define execvp mingw_execvp
 256void mingw_execv(const char *cmd, char *const *argv);
 257#define execv mingw_execv
 258
 259static inline unsigned int git_ntohl(unsigned int x)
 260{ return (unsigned int)ntohl(x); }
 261#define ntohl git_ntohl
 262
 263sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 264#define signal mingw_signal
 265
 266/*
 267 * ANSI emulation wrappers
 268 */
 269
 270int winansi_fputs(const char *str, FILE *stream);
 271int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 272int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 273#define fputs winansi_fputs
 274#define printf(...) winansi_printf(__VA_ARGS__)
 275#define fprintf(...) winansi_fprintf(__VA_ARGS__)
 276
 277/*
 278 * git specific compatibility
 279 */
 280
 281#define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 282#define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 283#define PATH_SEP ';'
 284#define PRIuMAX "I64u"
 285
 286void mingw_open_html(const char *path);
 287#define open_html mingw_open_html
 288
 289/*
 290 * helpers
 291 */
 292
 293char **make_augmented_environ(const char *const *vars);
 294void free_environ(char **env);
 295
 296/*
 297 * A replacement of main() that ensures that argv[0] has a path
 298 * and that default fmode and std(in|out|err) are in binary mode
 299 */
 300
 301#define main(c,v) dummy_decl_mingw_main(); \
 302static int mingw_main(); \
 303int main(int argc, const char **argv) \
 304{ \
 305        extern CRITICAL_SECTION pinfo_cs; \
 306        _fmode = _O_BINARY; \
 307        _setmode(_fileno(stdin), _O_BINARY); \
 308        _setmode(_fileno(stdout), _O_BINARY); \
 309        _setmode(_fileno(stderr), _O_BINARY); \
 310        argv[0] = xstrdup(_pgmptr); \
 311        InitializeCriticalSection(&pinfo_cs); \
 312        return mingw_main(argc, argv); \
 313} \
 314static int mingw_main(c,v)
 315
 316#ifndef NO_MINGW_REPLACE_READDIR
 317/*
 318 * A replacement of readdir, to ensure that it reads the file type at
 319 * the same time. This avoid extra unneeded lstats in git on MinGW
 320 */
 321#undef DT_UNKNOWN
 322#undef DT_DIR
 323#undef DT_REG
 324#undef DT_LNK
 325#define DT_UNKNOWN      0
 326#define DT_DIR          1
 327#define DT_REG          2
 328#define DT_LNK          3
 329
 330struct mingw_dirent
 331{
 332        long            d_ino;                  /* Always zero. */
 333        union {
 334                unsigned short  d_reclen;       /* Always zero. */
 335                unsigned char   d_type;         /* Reimplementation adds this */
 336        };
 337        unsigned short  d_namlen;               /* Length of name in d_name. */
 338        char            d_name[FILENAME_MAX];   /* File name. */
 339};
 340#define dirent mingw_dirent
 341#define readdir(x) mingw_readdir(x)
 342struct dirent *mingw_readdir(DIR *dir);
 343#endif // !NO_MINGW_REPLACE_READDIR
 344
 345/*
 346 * Used by Pthread API implementation for Windows
 347 */
 348extern int err_win_to_posix(DWORD winerr);