[ruslandh]

Это функция языка C (может и в perl есть что-то аналогичное) - написать программку.

man p crypt

SYNOPSIS #include <unistd.h> char *crypt(const char *key, const char *salt); DESCRIPTION The crypt() function is a string encoding function. The algorithm is implementation-defined. The key argument points to a string to be encoded. The salt argument is a string chosen from the set: a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 . / .... The putpwent() function, used in the following example, is not part of IEEE Std 1003.1-2001 #include <unistd.h> #include <pwd.h> #include <string.h> #include <stdio.h> ... int valid_change; int pfd; /* Integer for file descriptor returned by open(). */ FILE *fpfd; /* File pointer for use in putpwent(). */ struct passwd *p; char user[100]; char oldpasswd[100]; char newpasswd[100]; char savepasswd[100]; ... valid_change = 0; while ((p = getpwent()) != NULL) { /* Change entry if found. */ if (strcmp(p->pw_name, user) == 0) { if (strcmp(p->pw_passwd, crypt(oldpasswd, p->pw_passwd)) == 0) { strcpy(savepasswd, crypt(newpasswd, user)); p->pw_passwd = savepasswd; valid_change = 1; } else { fprintf(stderr, "Old password is not valid\n"); } } /* Put passwd entry into ptmp. */ putpwent(p, fpfd); }

[Vlad Drakula]

но на самом деле можно сделать проще: написать две строчки на PHP

[ruslandh]

Vlad Drakula, php для меня тёмный лес