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#include "git-compat-util.h"
#ifdef OPEN_RETURNS_EINTR
#undef open
int git_open_with_retry(const char *path, int flags, ...)
{
mode_t mode = 0;
int ret;
/*
* Also O_TMPFILE would take a mode, but it isn't defined everywhere.
* And anyway, we don't use it in our code base.
*/
if (flags & O_CREAT) {
va_list ap;
va_start(ap, flags);
mode = va_arg(ap, int);
va_end(ap);
}
do {
ret = open(path, flags, mode);
} while (ret < 0 && errno == EINTR);
return ret;
}
#endif
int git_open_cloexec(const char *name, int flags)
{
int fd;
static int o_cloexec = O_CLOEXEC;
fd = open(name, flags | o_cloexec);
if ((o_cloexec & O_CLOEXEC) && fd < 0 && errno == EINVAL) {
/* Try again w/o O_CLOEXEC: the kernel might not support it */
o_cloexec &= ~O_CLOEXEC;
fd = open(name, flags | o_cloexec);
}
#if defined(F_GETFD) && defined(F_SETFD) && defined(FD_CLOEXEC)
{
static int fd_cloexec = FD_CLOEXEC;
if (!o_cloexec && 0 <= fd && fd_cloexec) {
/* Opened w/o O_CLOEXEC? try with fcntl(2) to add it */
int flags = fcntl(fd, F_GETFD);
if (fcntl(fd, F_SETFD, flags | fd_cloexec))
fd_cloexec = 0;
}
}
#endif
return fd;
}
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