pam_modules/authtok_check/stringlib.c

/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 * This program is copyright Alec Muffett 1993. The author disclaims all
 * responsibility or liability with respect to it's usage or its effect
 * upon hardware or computer systems, and maintains copyright as set out
 * in the "LICENCE" document which accompanies distributions of Crack v4.0
 * and upwards.
 */

#include "packer.h"


char
Chop(register char *string)
{
    register char c;
    register char *ptr;

    c = '\0';

    for (ptr = string; *ptr; ptr++);
    if (ptr != string) {
        c = *(--ptr);
        *ptr = '\0';
    }
    return (c);
}

char
Chomp(register char *string)
{
    register char c;
    register char *ptr;

    c = '\0';

    for (ptr = string; *ptr; ptr++)
        ;
    if (ptr != string && isspace(*(--ptr))) {
        c = *ptr;
        *ptr = '\0';
    }
    return (c);
}


char *
Trim(register char *string)
{
    register char *ptr;

    for (ptr = string; *ptr; ptr++);

    while ((--ptr >= string) && isspace(*ptr));

    *(++ptr) = '\0';

    return (ptr);
}