mysqlmanager-pwgen.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:4k
源码类别:
MySQL数据库
开发平台:
Visual C++
- /* 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; either version 2 of the License, or
- (at your option) any later version.
- 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 <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 Sashan");
- printf("This software comes with ABSOLUTELY NO WARRANTYnn");
- printf("Generates a password file to be used by mysqltest.nn");
- 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;
- /*
- /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")))
- {
- fread(pw,len,1,fp);
- fclose(fp);
- while (pw<pw_end)
- {
- char tmp= 'a'+((uint)*pw % 26);
- *pw++= tmp;
- }
- }
- else
- {
- srand(time(NULL));
- while (pw<pw_end)
- {
- char tmp= 'a'+((uint)*pw % 26);
- *pw++= tmp;
- }
- }
- *pw_end=0;
- }
- int main(int argc, char** argv)
- {
- FILE* fp;
- my_MD5_CTX context;
- 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_MD5Init(&context);
- my_MD5Update(&context,(uchar*) pw,sizeof(pw)-1);
- my_MD5Final(digest,&context);
- fprintf(fp,"%s:",user);
- for (i=0;i<sizeof(digest);i++)
- fprintf(fp,"%02x",digest[i]);
- fprintf(fp,"n");
- fclose(fp);
- printf("%sn",pw);
- return 0;
- }