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/*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* as published by the Free Software Foundation.
*
* In addition to the permissions in the GNU General Public License,
* the authors give you unlimited permission to link the compiled
* version of this file into combinations with other programs,
* and to distribute those combinations without any restriction
* coming from the use of this file. (The General Public License
* restrictions do apply in other respects; for example, they cover
* modification of the file, and distribution when not linked into
* a combined executable.)
*
* This file is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "git/common.h"
int git_fopen(git_file *out, const char *path, int flags)
{
int r = open(path, flags);
if (r < 0)
return -1;
*out = r;
return GIT_SUCCESS;
}
int git_fread(git_file fd, void *buf, size_t cnt)
{
char *b = buf;
while (cnt) {
ssize_t r = read(fd, b, cnt);
if (r < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
if (!r) {
errno = EPIPE;
return -1;
}
cnt -= r;
b += r;
}
return GIT_SUCCESS;
}
int git_fwrite(git_file fd, void *buf, size_t cnt)
{
char *b = buf;
while (cnt) {
ssize_t r = write(fd, b, cnt);
if (r < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
return -1;
}
if (!r) {
errno = EPIPE;
return -1;
}
cnt -= r;
b += r;
}
return GIT_SUCCESS;
}
off_t git_fsize(git_file fd)
{
struct stat sb;
if (fstat(fd, &sb))
return -1;
return sb.st_size;
}
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