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MinGW: a hardlink implementation

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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Petr Kodl 2009-01-24 15:04:39 +01:00 committed by Junio C Hamano
parent b3debd2b0c
commit 7be401e069
2 changed files with 22 additions and 2 deletions
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21
compat/mingw.c
View file

@ -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;
}

3
compat/mingw.h
View file

@ -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