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/*
* notion/ioncore/tempdir.c
*
* Copyright (c) 2019 The Notion development team
*
* See the included file LICENSE for details.
*/
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L /* mkdtemp(3) */
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <dirent.h>
#include <stddef.h>
#include "tempdir.h"
#include "log.h"
static char template[]="/tmp/notion.XXXXXX\0\0";
static char const *tempdir=NULL;
/*EXTL_DOC
* Returns the global temporary directory for this notion instance with a
* trailing slash. The directory is created in case it does not exist.
* The directory will be non-recursively deleted on teardown, therefore no
* subdirectories should be created.
*/
EXTL_SAFE
EXTL_EXPORT
const char *ioncore_tempdir()
{
if(tempdir)
return tempdir;
tempdir=mkdtemp(template); /* points to template */
if(!tempdir){
LOG(ERROR, GENERAL, "Error creating temporary directory: %s.",
strerror(errno));
return NULL;
}
template[strlen(tempdir)]='/';
return tempdir;
}
void ioncore_tempdir_cleanup(void)
{
DIR *dir;
struct dirent *dent;
char fname[sizeof(template)+NAME_MAX];
size_t const offs=strlen(template);
if(!tempdir)
return;
dir=opendir(tempdir);
if(!dir){
LOG(ERROR, GENERAL, "Error opening temporary directory: %s.",
strerror(errno));
return;
}
strcpy(fname, tempdir);
while((dent=readdir(dir))){
strcpy(fname+offs, dent->d_name);
unlink(fname);
}
closedir(dir);
rmdir(tempdir);
tempdir=NULL;
}
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