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;
  10#define hstrerror strerror
  11
  12#define S_IFLNK    0120000 /* Symbolic link */
  13#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
  14#define S_ISSOCK(x) 0
  15
  16#ifndef _STAT_H_
  17#define S_IRUSR 0
  18#define S_IWUSR 0
  19#define S_IXUSR 0
  20#define S_IRWXU (S_IRUSR | S_IWUSR | S_IXUSR)
  21#endif
  22#define S_IRGRP 0
  23#define S_IWGRP 0
  24#define S_IXGRP 0
  25#define S_IRWXG (S_IRGRP | S_IWGRP | S_IXGRP)
  26#define S_IROTH 0
  27#define S_IWOTH 0
  28#define S_IXOTH 0
  29#define S_IRWXO (S_IROTH | S_IWOTH | S_IXOTH)
  30#define S_ISUID 0
  31#define S_ISGID 0
  32#define S_ISVTX 0
  33
  34#define WIFEXITED(x) 1
  35#define WIFSIGNALED(x) 0
  36#define WEXITSTATUS(x) ((x) & 0xff)
  37#define WTERMSIG(x) SIGTERM
  38
  39#define SIGHUP 1
  40#define SIGQUIT 3
  41#define SIGKILL 9
  42#define SIGPIPE 13
  43#define SIGALRM 14
  44#define SIGCHLD 17
  45
  46#define F_GETFD 1
  47#define F_SETFD 2
  48#define FD_CLOEXEC 0x1
  49
  50struct passwd {
  51        char *pw_name;
  52        char *pw_gecos;
  53        char *pw_dir;
  54};
  55
  56extern char *getpass(const char *prompt);
  57
  58#ifndef POLLIN
  59struct pollfd {
  60        int fd;           /* file descriptor */
  61        short events;     /* requested events */
  62        short revents;    /* returned events */
  63};
  64#define POLLIN 1
  65#define POLLHUP 2
  66#endif
  67
  68typedef void (__cdecl *sig_handler_t)(int);
  69struct sigaction {
  70        sig_handler_t sa_handler;
  71        unsigned sa_flags;
  72};
  73#define sigemptyset(x) (void)0
  74#define SA_RESTART 0
  75
  76struct itimerval {
  77        struct timeval it_value, it_interval;
  78};
  79#define ITIMER_REAL 0
  80
  81/*
  82 * sanitize preprocessor namespace polluted by Windows headers defining
  83 * macros which collide with git local versions
  84 */
  85#undef HELP_COMMAND /* from winuser.h */
  86
  87/*
  88 * trivial stubs
  89 */
  90
  91static inline int readlink(const char *path, char *buf, size_t bufsiz)
  92{ errno = ENOSYS; return -1; }
  93static inline int symlink(const char *oldpath, const char *newpath)
  94{ errno = ENOSYS; return -1; }
  95static inline int fchmod(int fildes, mode_t mode)
  96{ errno = ENOSYS; return -1; }
  97static inline pid_t fork(void)
  98{ errno = ENOSYS; return -1; }
  99static inline unsigned int alarm(unsigned int seconds)
 100{ return 0; }
 101static inline int fsync(int fd)
 102{ return _commit(fd); }
 103static inline pid_t getppid(void)
 104{ return 1; }
 105static inline void sync(void)
 106{}
 107static inline uid_t getuid(void)
 108{ return 1; }
 109static inline struct passwd *getpwnam(const char *name)
 110{ return NULL; }
 111static inline int fcntl(int fd, int cmd, ...)
 112{
 113        if (cmd == F_GETFD || cmd == F_SETFD)
 114                return 0;
 115        errno = EINVAL;
 116        return -1;
 117}
 118/* bash cannot reliably detect negative return codes as failure */
 119#define exit(code) exit((code) & 0xff)
 120
 121/*
 122 * simple adaptors
 123 */
 124
 125static inline int mingw_mkdir(const char *path, int mode)
 126{
 127        return mkdir(path);
 128}
 129#define mkdir mingw_mkdir
 130
 131static inline int mingw_unlink(const char *pathname)
 132{
 133        /* read-only files cannot be removed */
 134        chmod(pathname, 0666);
 135        return unlink(pathname);
 136}
 137#define unlink mingw_unlink
 138
 139static inline pid_t waitpid(pid_t pid, int *status, unsigned options)
 140{
 141        if (options == 0)
 142                return _cwait(status, pid, 0);
 143        errno = EINVAL;
 144        return -1;
 145}
 146
 147#ifndef NO_OPENSSL
 148#include <openssl/ssl.h>
 149static inline int mingw_SSL_set_fd(SSL *ssl, int fd)
 150{
 151        return SSL_set_fd(ssl, _get_osfhandle(fd));
 152}
 153#define SSL_set_fd mingw_SSL_set_fd
 154
 155static inline int mingw_SSL_set_rfd(SSL *ssl, int fd)
 156{
 157        return SSL_set_rfd(ssl, _get_osfhandle(fd));
 158}
 159#define SSL_set_rfd mingw_SSL_set_rfd
 160
 161static inline int mingw_SSL_set_wfd(SSL *ssl, int fd)
 162{
 163        return SSL_set_wfd(ssl, _get_osfhandle(fd));
 164}
 165#define SSL_set_wfd mingw_SSL_set_wfd
 166#endif
 167
 168/*
 169 * implementations of missing functions
 170 */
 171
 172int pipe(int filedes[2]);
 173unsigned int sleep (unsigned int seconds);
 174int mkstemp(char *template);
 175int gettimeofday(struct timeval *tv, void *tz);
 176int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 177struct tm *gmtime_r(const time_t *timep, struct tm *result);
 178struct tm *localtime_r(const time_t *timep, struct tm *result);
 179int getpagesize(void);  /* defined in MinGW's libgcc.a */
 180struct passwd *getpwuid(uid_t uid);
 181int setitimer(int type, struct itimerval *in, struct itimerval *out);
 182int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 183int link(const char *oldpath, const char *newpath);
 184
 185/*
 186 * replacements of existing functions
 187 */
 188
 189int mingw_open (const char *filename, int oflags, ...);
 190#define open mingw_open
 191
 192ssize_t mingw_write(int fd, const void *buf, size_t count);
 193#define write mingw_write
 194
 195FILE *mingw_fopen (const char *filename, const char *otype);
 196#define fopen mingw_fopen
 197
 198FILE *mingw_freopen (const char *filename, const char *otype, FILE *stream);
 199#define freopen mingw_freopen
 200
 201char *mingw_getcwd(char *pointer, int len);
 202#define getcwd mingw_getcwd
 203
 204char *mingw_getenv(const char *name);
 205#define getenv mingw_getenv
 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_rename(const char*, const char*);
 229#define rename mingw_rename
 230
 231#if defined(USE_WIN32_MMAP) || defined(_MSC_VER)
 232int mingw_getpagesize(void);
 233#define getpagesize mingw_getpagesize
 234#endif
 235
 236/* Use mingw_lstat() instead of lstat()/stat() and
 237 * mingw_fstat() instead of fstat() on Windows.
 238 */
 239#define off_t off64_t
 240#define lseek _lseeki64
 241#ifndef ALREADY_DECLARED_STAT_FUNCS
 242#define stat _stati64
 243int mingw_lstat(const char *file_name, struct stat *buf);
 244int mingw_stat(const char *file_name, struct stat *buf);
 245int mingw_fstat(int fd, struct stat *buf);
 246#define fstat mingw_fstat
 247#define lstat mingw_lstat
 248#define _stati64(x,y) mingw_stat(x,y)
 249#endif
 250
 251int mingw_utime(const char *file_name, const struct utimbuf *times);
 252#define utime mingw_utime
 253
 254pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env,
 255                     const char *dir,
 256                     int fhin, int fhout, int fherr);
 257void mingw_execvp(const char *cmd, char *const *argv);
 258#define execvp mingw_execvp
 259void mingw_execv(const char *cmd, char *const *argv);
 260#define execv mingw_execv
 261
 262static inline unsigned int git_ntohl(unsigned int x)
 263{ return (unsigned int)ntohl(x); }
 264#define ntohl git_ntohl
 265
 266sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 267#define signal mingw_signal
 268
 269/*
 270 * ANSI emulation wrappers
 271 */
 272
 273int winansi_fputs(const char *str, FILE *stream);
 274int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 275int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 276#define fputs winansi_fputs
 277#define printf(...) winansi_printf(__VA_ARGS__)
 278#define fprintf(...) winansi_fprintf(__VA_ARGS__)
 279
 280/*
 281 * git specific compatibility
 282 */
 283
 284#define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 285#define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 286#define PATH_SEP ';'
 287#define PRIuMAX "I64u"
 288
 289void mingw_open_html(const char *path);
 290#define open_html mingw_open_html
 291
 292/*
 293 * helpers
 294 */
 295
 296char **make_augmented_environ(const char *const *vars);
 297void free_environ(char **env);
 298
 299/*
 300 * A replacement of main() that ensures that argv[0] has a path
 301 * and that default fmode and std(in|out|err) are in binary mode
 302 */
 303
 304#define main(c,v) dummy_decl_mingw_main(); \
 305static int mingw_main(); \
 306int main(int argc, const char **argv) \
 307{ \
 308        _fmode = _O_BINARY; \
 309        _setmode(_fileno(stdin), _O_BINARY); \
 310        _setmode(_fileno(stdout), _O_BINARY); \
 311        _setmode(_fileno(stderr), _O_BINARY); \
 312        argv[0] = xstrdup(_pgmptr); \
 313        return mingw_main(argc, argv); \
 314} \
 315static int mingw_main(c,v)
 316
 317#ifndef NO_MINGW_REPLACE_READDIR
 318/*
 319 * A replacement of readdir, to ensure that it reads the file type at
 320 * the same time. This avoid extra unneeded lstats in git on MinGW
 321 */
 322#undef DT_UNKNOWN
 323#undef DT_DIR
 324#undef DT_REG
 325#undef DT_LNK
 326#define DT_UNKNOWN      0
 327#define DT_DIR          1
 328#define DT_REG          2
 329#define DT_LNK          3
 330
 331struct mingw_dirent
 332{
 333        long            d_ino;                  /* Always zero. */
 334        union {
 335                unsigned short  d_reclen;       /* Always zero. */
 336                unsigned char   d_type;         /* Reimplementation adds this */
 337        };
 338        unsigned short  d_namlen;               /* Length of name in d_name. */
 339        char            d_name[FILENAME_MAX];   /* File name. */
 340};
 341#define dirent mingw_dirent
 342#define readdir(x) mingw_readdir(x)
 343struct dirent *mingw_readdir(DIR *dir);
 344#endif // !NO_MINGW_REPLACE_READDIR
 345
 346/*
 347 * Used by Pthread API implementation for Windows
 348 */
 349extern int err_win_to_posix(DWORD winerr);