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/* This file is part of "reprepro"
* Copyright (C) 2006 Bernhard R. Link
* This program 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.
*
* This program 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; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include <config.h>
#include <assert.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <malloc.h>
#include <errno.h>
#include "donefile.h"
#include "names.h"
retvalue donefile_isold(const char *filename, const char *expected) {
char buffer[200];
size_t len;
ssize_t bytes;
int fd;
char *donefilename = calc_addsuffix(filename,"done");
if( donefilename == NULL )
return RET_ERROR_OOM;
fd = open(donefilename, O_RDONLY|O_NOCTTY|O_NOFOLLOW, 0666);
if( fd < 0 ) {
int e = errno;
if( e == EACCES || e == ENOENT ) {
free(donefilename);
return RET_OK;
}
fprintf(stderr, "Error opening file %s: %d=%s\n",
donefilename, e, strerror(e));
free(donefilename);
return RET_ERRNO(e);
}
len = 0;
while( len < 199 && (bytes=read(fd, buffer+len, 199-len)) > 0 ) {
len += bytes;
}
if( bytes > 0 ) {
fprintf(stderr, "Unexpected long file %s!\n", donefilename);
(void)close(fd);
free(donefilename);
return RET_ERROR;
} else if( bytes < 0 ) {
int e = errno;
fprintf(stderr, "Error reading file %s: %d=%s\n",
donefilename, e, strerror(e));
(void)close(fd);
free(donefilename);
return RET_ERRNO(e);
}
free(donefilename);
buffer[len] = '\0';
if( strcmp(expected, buffer) == 0 )
return RET_NOTHING;
else
return RET_OK;
}
retvalue donefile_create(const char *filename, const char *expected) {
size_t len;
ssize_t written;
int fd;
if( interrupted() )
return RET_ERROR_INTERUPTED;
char *donefilename = calc_addsuffix(filename,"done");
if( donefilename == NULL )
return RET_ERROR_OOM;
fd = open(donefilename, O_WRONLY|O_CREAT|O_TRUNC|O_NOCTTY|O_NOFOLLOW,
0666);
if( fd < 0 ) {
int e = errno;
fprintf(stderr, "Error creating file %s: %d=%s\n",
donefilename, e, strerror(e));
free(donefilename);
return RET_ERRNO(e);
}
len = strlen(expected);
written = 0;
while( len > 0 && (written=write(fd, expected, len)) >= 0 ) {
expected += written;
assert( len >= (size_t)written );
len -= written;
}
if( written < 0 ) {
int e = errno;
fprintf(stderr, "Error writing into %s: %d=%s\n",
donefilename, e, strerror(e));
free(donefilename);
(void)close(fd);
return RET_ERRNO(e);
}
if( close(fd) != 0 ) {
int e = errno;
fprintf(stderr, "Error writing %s: %d=%s\n",
donefilename, e, strerror(e));
free(donefilename);
return RET_ERRNO(e);
}
free(donefilename);
return RET_OK;
}
void donefile_delete(const char *filename) {
char *donefilename = calc_addsuffix(filename,"done");
unlink(donefilename);
free(donefilename);
}
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