mirror of
https://github.com/cryb-to/cryb-to.git
synced 2024-12-11 23:14:52 +00:00
155 lines
3.5 KiB
C
155 lines
3.5 KiB
C
/*-
|
|
* Copyright (c) 2012-2016 Dag-Erling Smørgrav
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "cryb/impl.h"
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdarg.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <cryb/test.h>
|
|
|
|
static struct t_file *tflist;
|
|
|
|
/*
|
|
* Open a temp file.
|
|
*/
|
|
struct t_file *
|
|
t_fopen(const char *filename)
|
|
{
|
|
struct t_file *tf;
|
|
int fd, ret;
|
|
|
|
if ((tf = calloc(sizeof *tf, 1)) == NULL)
|
|
err(1, "%s(): calloc()", __func__);
|
|
if (filename) {
|
|
if ((tf->name = strdup(filename)) == NULL)
|
|
err(1, "%s(): strdup()", __func__);
|
|
} else {
|
|
ret = asprintf(&tf->name, "%s.%lu.%p.tmp",
|
|
t_progname, (unsigned long)getpid(), (void *)tf);
|
|
if (ret < 0 || tf->name == NULL)
|
|
err(1, "%s(): asprintf()", __func__);
|
|
}
|
|
if ((fd = open(tf->name, O_RDWR|O_CREAT|O_TRUNC, 0600)) < 0)
|
|
err(1, "%s(): %s", __func__, tf->name);
|
|
if ((tf->file = fdopen(fd, "r+")) == NULL)
|
|
err(1, "%s(): fdopen()", __func__);
|
|
if ((tf->next = tflist) != NULL)
|
|
tf->next->prev = tf;
|
|
tflist = tf;
|
|
return (tf);
|
|
}
|
|
|
|
/*
|
|
* Write text to the temp file.
|
|
*/
|
|
int
|
|
t_fprintf(struct t_file *tf, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
int len;
|
|
|
|
va_start(ap, fmt);
|
|
len = vfprintf(tf->file, fmt, ap);
|
|
va_end(ap);
|
|
if (ferror(tf->file))
|
|
err(1, "%s(): vfprintf()", __func__);
|
|
return (len);
|
|
}
|
|
|
|
/*
|
|
* Rewind the temp file.
|
|
*/
|
|
void
|
|
t_frewind(struct t_file *tf)
|
|
{
|
|
|
|
errno = 0;
|
|
rewind(tf->file);
|
|
if (errno != 0)
|
|
err(1, "%s(): rewind()", __func__);
|
|
}
|
|
|
|
/*
|
|
* Return non-zero if an error occurred.
|
|
*/
|
|
int
|
|
t_ferror(struct t_file *tf)
|
|
{
|
|
|
|
return (ferror(tf->file));
|
|
}
|
|
|
|
/*
|
|
* Return non-zero if the end of the file was reached.
|
|
*/
|
|
int
|
|
t_feof(struct t_file *tf)
|
|
{
|
|
|
|
return (feof(tf->file));
|
|
}
|
|
|
|
/*
|
|
* Close a temp file.
|
|
*/
|
|
void
|
|
t_fclose(struct t_file *tf)
|
|
{
|
|
|
|
if (tf == tflist)
|
|
tflist = tf->next;
|
|
if (tf->prev)
|
|
tf->prev->next = tf->next;
|
|
if (tf->next)
|
|
tf->next->prev = tf->prev;
|
|
fclose(tf->file);
|
|
if (unlink(tf->name) < 0)
|
|
warn("%s(): unlink()", __func__);
|
|
free(tf->name);
|
|
free(tf);
|
|
}
|
|
|
|
/*
|
|
* atexit() function to close all remaining files.
|
|
*/
|
|
void
|
|
t_fcloseall(void)
|
|
{
|
|
|
|
while (tflist)
|
|
t_fclose(tflist);
|
|
}
|