/*
 * Copyright (c) 1985, 1993, 1994
 *      The Regents of the University of California.  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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 "ftp_locl.h"
RCSID("$Id$");

void
domacro(int argc, char **argv)
{
        int i, j, count = 2, loopflg = 0;
        char *cp1, *cp2, line2[200];
        struct cmd *c;

        if (argc < 2 && !another(&argc, &argv, "macro name")) {
                printf("Usage: %s macro_name.\n", argv[0]);
                code = -1;
                return;
        }
        for (i = 0; i < macnum; ++i) {
                if (!strncmp(argv[1], macros[i].mac_name, 9)) {
                        break;
                }
        }
        if (i == macnum) {
                printf("'%s' macro not found.\n", argv[1]);
                code = -1;
                return;
        }
        strlcpy(line2, line, sizeof(line2));
TOP:
        cp1 = macros[i].mac_start;
        while (cp1 != macros[i].mac_end) {
                while (isspace((unsigned char)*cp1)) {
                        cp1++;
                }
                cp2 = line;
                while (*cp1 != '\0') {
                      size_t len;
                      switch(*cp1) {
                            case '\\':
                                if (line + sizeof(line) - 2 < cp2)
                                    goto out;
                                *cp2++ = *++cp1;
                                 break;
                            case '$':
                                 if (isdigit((unsigned char)*(cp1+1))) {
                                    j = 0;
                                    while (isdigit((unsigned char)*++cp1)) {
                                          j = 10*j +  *cp1 - '0';
                                    }
                                    cp1--;
                                    if (argc - 2 >= j) {
                                        len = sizeof(line) - (cp2 - line) - 1;
                                        if (strlcpy(cp2, argv[j+1], len) >= len)
                                            goto out;
                                        cp2 += strlen(argv[j+1]);
                                    }
                                    break;
                                 }
                                 if (*(cp1+1) == 'i') {
                                        loopflg = 1;
                                        cp1++;
                                        if (count < argc) {
                                           len = sizeof(line) - (cp2 - line) - 1;
                                           if (strlcpy(cp2, argv[count], len) >= len)
                                               goto out;
                                           cp2 += strlen(argv[count]);
                                        }
                                        break;
                                }
                                /* intentional drop through */
                            default:
                                if (line + sizeof(line) - 2 < cp2)
                                    goto out;
                                *cp2++ = *cp1;
                                break;
                      }
                      if (*cp1 != '\0') {
                         cp1++;
                      }
                }
        out:
                *cp2 = '\0';
                makeargv();
                c = getcmd(margv[0]);
                if (c == (struct cmd *)-1) {
                        printf("?Ambiguous command\n");
                        code = -1;
                }
                else if (c == 0) {
                        printf("?Invalid command\n");
                        code = -1;
                }
                else if (c->c_conn && !connected) {
                        printf("Not connected.\n");
                        code = -1;
                }
                else {
                        if (verbose) {
                                printf("%s\n",line);
                        }
                        (*c->c_handler)(margc, margv);
                        if (bell && c->c_bell) {
                                putchar('\007');
                        }
                        strlcpy(line, line2, sizeof(line));
                        makeargv();
                        argc = margc;
                        argv = margv;
                }
                if (cp1 != macros[i].mac_end) {
                        cp1++;
                }
        }
        if (loopflg && ++count < argc) {
                goto TOP;
        }
}