source: branches/1.0/src/utils.c@ 24

#include    <os2.h>

#include    <stdlib.h>
#include    <string.h>
#include    <stdio.h>
#include    <stdlib.h>
#include    "utils.h"

/*  replace one string by another */
BOOL searchReplace(const char *search, const char *replace, const char *string, char *replaced)
{
        /* create init some variables */
        char *searchStart;
        int len = 0;

        /* do we find the searched string at all */
        searchStart = strstr(string, search);
        if (searchStart == NULL)
        {
                strncpy(replaced, string, strlen(replaced));
                return FALSE;
        }

        /* copy first part */
        len = searchStart - string;
        strncpy(replaced, string, len);

        /* add the replaced string */
        strcat(replaced, replace);

        /* add the last part */
        len += strlen(search);
        strcat(replaced, string+len);

        return TRUE;
}

/* Password encryption/decryption routines from ndpsmb.c */

unsigned char fromhex(char c)
{
        if ('0' <= c && c <= '9')
        {
                return c - '0';
        }
        
        if ('A' <= c && c <= 'F')
        {
                return c - 'A' + 0xA;
        }
        
        if ('a' <= c && c <= 'f')
        {
                return c - 'a' + 0xA;
        }
        
        return 0;
}

char tohex(unsigned char b)
{
        b &= 0xF;
        
        if (b <= 9)
        {
                return b + '0';
        }
        
        return 'A' + (b - 0xA);
}

void decryptPassword(const char *pszCrypt, char *pszPlain)
{
        /* A simple "decryption", character from the hex value. */
        const char *s = pszCrypt;
        char *d = pszPlain;
        
        while (*s)
        {
                *d++ = (char)((fromhex (*s++) << 4) + fromhex (*s++));
        }
        
        *d++ = 0;
}

void encryptPassword(const char *pszPlain, char *pszCrypt)
{
        /* A simple "encryption" encode each character as hex value. */
        const char *s = pszPlain;
        char *d = pszCrypt;
        
        while (*s)
        {
                *d++ = tohex ((*s) >> 4);
                *d++ = tohex (*s);
                s++;
        }
        
        *d++ = 0;
}