/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* This file is part of libgit2, distributed under the GNU GPL v2 with
* a Linking Exception. For full terms see the included COPYING file.
*/
#include "common.h"
#include "posix.h"
#include "path.h"
#include <stdio.h>
#include <ctype.h>
#ifndef GIT_WIN32
int p_open(const char *path, int flags, ...)
{
mode_t mode = 0;
if (flags & O_CREAT)
{
va_list arg_list;
va_start(arg_list, flags);
mode = (mode_t)va_arg(arg_list, int);
va_end(arg_list);
}
return open(path, flags | O_BINARY, mode);
}
int p_creat(const char *path, mode_t mode)
{
return open(path, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, mode);
}
int p_getcwd(char *buffer_out, size_t size)
{
char *cwd_buffer;
assert(buffer_out && size > 0);
cwd_buffer = getcwd(buffer_out, size);
if (cwd_buffer == NULL)
return -1;
git_path_mkposix(buffer_out);
git_path_string_to_dir(buffer_out, size); /* append trailing slash */
return 0;
}
int p_rename(const char *from, const char *to)
{
if (!link(from, to)) {
p_unlink(from);
return 0;
}
if (!rename(from, to))
return 0;
return -1;
}
#endif
int p_read(git_file fd, void *buf, size_t cnt)
{
char *b = buf;
while (cnt) {
ssize_t r;
#ifdef GIT_WIN32
assert((size_t)((unsigned int)cnt) == cnt);
r = read(fd, b, (unsigned int)cnt);
#else
r = read(fd, b, cnt);
#endif
if (r < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
if (!r)
break;
cnt -= r;
b += r;
}
return (int)(b - (char *)buf);
}
int p_write(git_file fd, const void *buf, size_t cnt)
{
const char *b = buf;
while (cnt) {
ssize_t r;
#ifdef GIT_WIN32
assert((size_t)((unsigned int)cnt) == cnt);
r = write(fd, b, (unsigned int)cnt);
#else
r = write(fd, b, cnt);
#endif
if (r < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
if (!r) {
errno = EPIPE;
return -1;
}
cnt -= r;
b += r;
}
return 0;
}
