Hi, i've implemented this function as part of my bondlog package:
#include <string.h>
#include <ctype.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <errno.h>
#include "bondlog.h"
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <pwd.h>
#define PATH_MAX 1024
FILE *
mytmpfile ()
{
char appname[] = "/var/spool/bondlog/tmp-";
char filename[PATH_MAX];
base64buf b;
unsigned int num = 0;
unsigned int count = 0;
mode_t mask;
FILE *urand_file;
FILE *tmp;
unsigned char *stream;
if ((stream = (char *) malloc (11)) == NULL)
{
return NULL;
}
memset (stream, '\0', 11);
urand_file = fopen (RANDOMFILE, "r");
if (urand_file == NULL)
{
free (stream);
return NULL;
}
while (count < 9)
{
fread (&num, sizeof (unsigned int), 1, urand_file);
stream[count] = (char) num;
count++;
}
fclose (urand_file);
base64_encode (&b, stream, 9);
memset (filename, '\0', sizeof (filename));
snprintf (filename, sizeof (filename), "%s%s", appname, b.data);
mask = umask (0066);
if ((tmp = fopen (filename, "wb")) == NULL)
{
fprintf (stderr, "Cannot create filename:%s", filename);
free (stream);
return NULL;
}
unlink (filename); // the file will be not delete until closed;
umask (mask);
free (stream);
buffer_delete (&b);
return (tmp);
}
Could be function this considered a valid safe tempfile alternative ?
Cheers,
gz
----------------------------
Giorgio Zoppi
denebat_private
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