crypto/heimdal/appl/ftp/ftp/domacro.c

   1 /*
   2  * Copyright (c) 1985, 1993, 1994
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "ftp_locl.h"
  35 RCSID("$Id: domacro.c 14951 2005-04-25 13:09:26Z lha $");
  36
  37 void
  38 domacro(int argc, char **argv)
  39 {
  40         int i, j, count = 2, loopflg = 0;
  41         char *cp1, *cp2, line2[200];
  42         struct cmd *c;
  43
  44         if (argc < 2 && !another(&argc, &argv, "macro name")) {
  45                 printf("Usage: %s macro_name.\n", argv[0]);
  46                 code = -1;
  47                 return;
  48         }
  49         for (i = 0; i < macnum; ++i) {
  50                 if (!strncmp(argv[1], macros[i].mac_name, 9)) {
  51                         break;
  52                 }
  53         }
  54         if (i == macnum) {
  55                 printf("'%s' macro not found.\n", argv[1]);
  56                 code = -1;
  57                 return;
  58         }
  59         strlcpy(line2, line, sizeof(line2));
  60 TOP:
  61         cp1 = macros[i].mac_start;
  62         while (cp1 != macros[i].mac_end) {
  63                 while (isspace((unsigned char)*cp1)) {
  64                         cp1++;
  65                 }
  66                 cp2 = line;
  67                 while (*cp1 != '\0') {
  68                       size_t len;
  69                       switch(*cp1) {
  70                             case '\\':
  71                                 if (line + sizeof(line) - 2 < cp2)
  72                                     goto out;
  73                                 *cp2++ = *++cp1;
  74                                  break;
  75                             case '$':
  76                                  if (isdigit((unsigned char)*(cp1+1))) {
  77                                     j = 0;
  78                                     while (isdigit((unsigned char)*++cp1)) {
  79                                           j = 10*j +  *cp1 - '0';
  80                                     }
  81                                     cp1--;
  82                                     if (argc - 2 >= j) {
  83                                         len = sizeof(line) - (cp2 - line) - 1;
  84                                         if (strlcpy(cp2, argv[j+1], len) >= len)
  85                                             goto out;
  86                                         cp2 += strlen(argv[j+1]);
  87                                     }
  88                                     break;
  89                                  }
  90                                  if (*(cp1+1) == 'i') {
  91                                         loopflg = 1;
  92                                         cp1++;
  93                                         if (count < argc) {
  94                                            len = sizeof(line) - (cp2 - line) - 1;
  95                                            if (strlcpy(cp2, argv[count], len) >= len)
  96                                                goto out;
  97                                            cp2 += strlen(argv[count]);
  98                                         }
  99                                         break;
 100                                 }
 101                                 /* intentional drop through */
 102                             default:
 103                                 if (line + sizeof(line) - 2 < cp2)
 104                                     goto out;
 105                                 *cp2++ = *cp1;
 106                                 break;
 107                       }
 108                       if (*cp1 != '\0') {
 109                          cp1++;
 110                       }
 111                 }
 112         out:
 113                 *cp2 = '\0';
 114                 makeargv();
 115                 c = getcmd(margv[0]);
 116                 if (c == (struct cmd *)-1) {
 117                         printf("?Ambiguous command\n");
 118                         code = -1;
 119                 }
 120                 else if (c == 0) {
 121                         printf("?Invalid command\n");
 122                         code = -1;
 123                 }
 124                 else if (c->c_conn && !connected) {
 125                         printf("Not connected.\n");
 126                         code = -1;
 127                 }
 128                 else {
 129                         if (verbose) {
 130                                 printf("%s\n",line);
 131                         }
 132                         (*c->c_handler)(margc, margv);
 133                         if (bell && c->c_bell) {
 134                                 putchar('\007');
 135                         }
 136                         strlcpy(line, line2, sizeof(line));
 137                         makeargv();
 138                         argc = margc;
 139                         argv = margv;
 140                 }
 141                 if (cp1 != macros[i].mac_end) {
 142                         cp1++;
 143                 }
 144         }
 145         if (loopflg && ++count < argc) {
 146                 goto TOP;
 147         }
 148 }