dav/assistant.c

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2018 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

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

#include <cx/string.h>
#include <cx/utils.h>

#include <libidav/utils.h>

#include "assistant.h"

char* assistant_getcfg(const char *cfgname) {
    cxmutstr line;
    char *value = NULL;
    while(!value) {
        printf("%s: ", cfgname);
        fflush(stdout);
        line = util_readline(stdin);
        if(line.length == 0 || !line.ptr) {
            fprintf(stderr, "%s must be not empty\n", cfgname);
            continue;
        }
        
        value = line.ptr;
        break;
    }
    return value;
}

char* assistant_getoptcfg(const char *cfgname) {
    cxmutstr line;
    char *value = NULL;
    while(!value) {
        printf("%s (optional): ", cfgname);
        fflush(stdout);
        line = util_readline(stdin);
        if(line.length == 0 || !line.ptr) {
            if(line.ptr) {
                free(line.ptr);
            }
            break;
        }
        
        value = line.ptr;
        break;
    }
    return value;
}

char* assistant_gethiddenoptcfg(const char *cfgname) {
    printf("%s (optional): ", cfgname);
    fflush(stdout);
    char *pw = util_password_input("");
    if(pw[0] == 0) {
        free(pw);
        pw = NULL;
    }
    return pw;
}


char* assistant_getdefcfg(const char *cfgname, const char *defval) {
    cxmutstr line;
    char *value = NULL;
    while(!value) {
        printf("%s (default: %s): ", cfgname, defval);
        fflush(stdout);
        line = util_readline(stdin);
        if(line.length == 0 || !line.ptr) {
            if(line.ptr) {
                free(line.ptr);
            }
            break;
        }
        
        value = line.ptr;
        break;
    }
    return value ? value : strdup(defval);
}