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/* Copyright (C) 2000 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#define MANAGER_PWGEN_VERSION "1.4"
#include <my_global.h>
#include <m_ctype.h>
#include <my_sys.h>
#include <m_string.h>
#include <mysql_version.h>
#include <errno.h>
#include <my_getopt.h>
#include "my_md5.h"
const char* outfile=0,*user="root";
static struct my_option my_long_options[] =
{
{"output-file", 'o', "Write the output to the file with the given name.",
(gptr*) &outfile, (gptr*) &outfile, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0,
0, 0},
{"user", 'u', "Put given user in the password file.", (gptr*) &user,
(gptr*) &user, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
{"help", '?', "Display this message and exit.", 0, 0, 0, GET_NO_ARG, NO_ARG,
0, 0, 0, 0, 0, 0},
{"version", 'V', "Display version info.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0,
0, 0, 0, 0},
{0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
};
static void die(const char* fmt, ...)
{
va_list args;
DBUG_ENTER("die");
va_start(args, fmt);
if (fmt)
{
fprintf(stderr, "%s: ", my_progname);
vfprintf(stderr, fmt, args);
fprintf(stderr, "\n");
fflush(stderr);
}
va_end(args);
exit(1);
}
static void print_version(void)
{
printf("%s Ver %s Distrib %s, for %s (%s)\n",my_progname,
MANAGER_PWGEN_VERSION,
MYSQL_SERVER_VERSION,SYSTEM_TYPE,MACHINE_TYPE);
}
void usage()
{
print_version();
printf("MySQL AB, by Sasha\n");
printf("This software comes with ABSOLUTELY NO WARRANTY\n\n");
printf("Generates a password file to be used by mysqltest.\n\n");
printf("Usage: %s [OPTIONS]\n", my_progname);
my_print_help(my_long_options);
my_print_variables(my_long_options);
}
static my_bool
get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
char *argument __attribute__((unused)))
{
switch (optid) {
case '?':
usage();
exit(0);
case 'V':
print_version();
exit(0);
}
return 0;
}
int parse_args(int argc, char** argv)
{
int ho_error;
if ((ho_error=handle_options(&argc, &argv, my_long_options, get_one_option)))
exit(ho_error);
return 0;
}
void get_pass(char* pw, int len)
{
FILE* fp;
char* pw_end=pw+len;
size_t elements_read= 0;
/*
/dev/random is more secure than rand() because the seed is easy to
predict, so we resort to rand() only if /dev/random is not available
*/
if ((fp=fopen("/dev/random","r")))
{
if ((elements_read= fread(pw,len,1,fp)))
{
while (pw<pw_end)
{
char tmp= 'a'+((uint)*pw % 26);
*pw++= tmp;
}
}
fclose(fp);
}
if (elements_read != 1)
{
srand(time(NULL));
while (pw<pw_end)
{
char tmp= 'a'+((uint)rand() % 26);
*pw++= tmp;
}
}
*pw_end=0;
}
int main(int argc, char** argv)
{
FILE* fp;
uchar digest[16];
char pw[17];
uint i;
MY_INIT(argv[0]);
parse_args(argc,argv);
if (!outfile)
die("Missing --output-file");
if (!(fp=fopen(outfile,"w")))
die("Could not open '%s'(errno=%d)",outfile,errno);
get_pass(pw,sizeof(pw)-1);
MY_MD5_HASH(digest,(uchar*) pw,sizeof(pw)-1);
fprintf(fp,"%s:",user);
for (i=0;i<sizeof(digest);i++)
fprintf(fp,"%02x",digest[i]);
fprintf(fp,"\n");
fclose(fp);
printf("%s\n",pw);
return 0;
}
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