From 7be401e069758cc36d335241d9b80f9aeebf58c7 Mon Sep 17 00:00:00 2001 From: Petr Kodl Date: Sat, 24 Jan 2009 15:04:39 +0100 Subject: [PATCH] MinGW: a hardlink implementation Signed-off-by: Johannes Schindelin Signed-off-by: Johannes Sixt Signed-off-by: Junio C Hamano --- compat/mingw.c | 21 +++++++++++++++++++++ compat/mingw.h | 3 +-- 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/compat/mingw.c b/compat/mingw.c index f66ad56aa..171fa85e4 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -1118,3 +1118,24 @@ void mingw_open_html(const char *unixpath) printf("Launching default browser to display HTML ...\n"); ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0); } + +int link(const char *oldpath, const char *newpath) +{ + typedef BOOL WINAPI (*T)(const char*, const char*, LPSECURITY_ATTRIBUTES); + static T create_hard_link = NULL; + if (!create_hard_link) { + create_hard_link = (T) GetProcAddress( + GetModuleHandle("kernel32.dll"), "CreateHardLinkA"); + if (!create_hard_link) + create_hard_link = (T)-1; + } + if (create_hard_link == (T)-1) { + errno = ENOSYS; + return -1; + } + if (!create_hard_link(newpath, oldpath, NULL)) { + errno = err_win_to_posix(GetLastError()); + return -1; + } + return 0; +} diff --git a/compat/mingw.h b/compat/mingw.h index 6e2468644..7e52f3607 100644 --- a/compat/mingw.h +++ b/compat/mingw.h @@ -67,8 +67,6 @@ static inline int readlink(const char *path, char *buf, size_t bufsiz) { errno = ENOSYS; return -1; } static inline int symlink(const char *oldpath, const char *newpath) { errno = ENOSYS; return -1; } -static inline int link(const char *oldpath, const char *newpath) -{ errno = ENOSYS; return -1; } static inline int fchmod(int fildes, mode_t mode) { errno = ENOSYS; return -1; } static inline int fork(void) @@ -134,6 +132,7 @@ int getpagesize(void); /* defined in MinGW's libgcc.a */ struct passwd *getpwuid(int uid); int setitimer(int type, struct itimerval *in, struct itimerval *out); int sigaction(int sig, struct sigaction *in, struct sigaction *out); +int link(const char *oldpath, const char *newpath); /* * replacements of existing functions -- 2.26.2