crype_word

linux shell 里面竟然没有直接输出crypt加密字符串的命令，郁闷。本人又不喜欢 perl

encrypt.c
#include
#include
#include
#include
#include
// Password longest 8 bit , Key longest is 2 bit , salt( 0-9a-zA-Z./ ) is Encrypted string of front 2 bit .
char *get_rand_str(int bit)
{
        static char s_str[65];
        char *str,strall[64] = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz./";
        int i;
        for(i=0;i        {
                struct timeval tv;
                struct timezone tz;
                gettimeofday(&tv,&tz);
                srand(tv.tv_usec);
                s_str[i]=strall[rand()%64];
        }
        s_str[bit]='\0';
        str=&s_str[0];
        return(str);
}
main(int argc,char **argv)
{
        if(argc != 3)
        {
                if(argc != 2)
                {
                        printf("Print Input \x22%s password salt\x22\n",argv[0]);
                        exit(0);
                }
                char *Salt;
                argv[2]=get_rand_str(2);
        }
        printf("%s\n",crypt(argv[1],argv[2]));
}

gcc -o encrypt ./encrypt.c -lcrypt


一个 perl 方法。
encrypt.pl

#!/usr/bin/perl
use strict;

my $pw=$ARGV[0];
print crypt($pw,$pw)."\n";