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domacro.c revision 1.23 
      1 /*	$NetBSD: domacro.c,v 1.23 2019/02/03 03:19:29 mrg Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1985, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)domacro.c	8.3 (Berkeley) 4/2/94";
     36 #else
     37 __RCSID("$NetBSD: domacro.c,v 1.23 2019/02/03 03:19:29 mrg Exp $");
     38 #endif
     39 #endif /* not lint */
     40 
     41 #include <ctype.h>
     42 #include <stdio.h>
     43 #include <string.h>
     44 
     45 #include "ftp_var.h"
     46 
     47 void
     48 domacro(int argc, char *argv[])
     49 {
     50 	int i, j, count = 2, loopflg = 0;
     51 	char *cp1, *cp2, line2[FTPBUFLEN];
     52 	struct cmd *c;
     53 	char cmdbuf[MAX_C_NAME];
     54 
     55 	if ((argc == 0 && argv != NULL) ||
     56 	    (argc < 2 && !another(&argc, &argv, "macro name"))) {
     57 		UPRINTF("usage: %s macro_name [args]\n", argv[0]);
     58 		code = -1;
     59 		return;
     60 	}
     61 	for (i = 0; i < macnum; ++i) {
     62 		if (!strncmp(argv[1], macros[i].mac_name, 9))
     63 			break;
     64 	}
     65 	if (i == macnum) {
     66 		fprintf(ttyout, "'%s' macro not found.\n", argv[1]);
     67 		code = -1;
     68 		return;
     69 	}
     70 	(void)strlcpy(line2, line, sizeof(line2));
     71  TOP:
     72 	cp1 = macros[i].mac_start;
     73 	while (cp1 != macros[i].mac_end) {
     74 		while (isspace((unsigned char)*cp1))
     75 			cp1++;
     76 		cp2 = line;
     77 		while (*cp1 != '\0') {
     78 			switch(*cp1) {
     79 			case '\\':
     80 				*cp2++ = *++cp1;
     81 				break;
     82 			case '$':
     83 				if (isdigit((unsigned char)*(cp1+1))) {
     84 					j = 0;
     85 					while (isdigit((unsigned char)*++cp1))
     86 						j = 10*j +  *cp1 - '0';
     87 					cp1--;
     88 					if (argc - 2 >= j) {
     89 						(void)strlcpy(cp2, argv[j+1],
     90 						    sizeof(line) - (cp2 - line));
     91 						cp2 += strlen(argv[j+1]);
     92 					}
     93 					break;
     94 				}
     95 				if (*(cp1+1) == 'i') {
     96 					loopflg = 1;
     97 					cp1++;
     98 					if (count < argc) {
     99 						(void)strlcpy(cp2, argv[count],
    100 						    sizeof(line) - (cp2 - line));
    101 						cp2 += strlen(argv[count]);
    102 					}
    103 					break;
    104 				}
    105 				/* FALLTHROUGH */
    106 			default:
    107 				*cp2++ = *cp1;
    108 				break;
    109 			}
    110 			if (*cp1 != '\0')
    111 				cp1++;
    112 		}
    113 		*cp2 = '\0';
    114 		makeargv();
    115 		c = getcmd(margv[0]);
    116 		if (c == (struct cmd *)-1) {
    117 			fputs("?Ambiguous command.\n", ttyout);
    118 			code = -1;
    119 		} else if (c == 0) {
    120 			fputs("?Invalid command.\n", ttyout);
    121 			code = -1;
    122 		} else if (c->c_conn && !connected) {
    123 			fputs("Not connected.\n", ttyout);
    124 			code = -1;
    125 		} else {
    126 			if (verbose) {
    127 				fputs(line, ttyout);
    128 				putc('\n', ttyout);
    129 			}
    130 			(void)strlcpy(cmdbuf, c->c_name, sizeof(cmdbuf));
    131 			margv[0] = cmdbuf;
    132 			(*c->c_handler)(margc, margv);
    133 			if (bell && c->c_bell)
    134 				(void)putc('\007', ttyout);
    135 			(void)strlcpy(line, line2, sizeof(line));
    136 			makeargv();
    137 			argc = margc;
    138 			argv = margv;
    139 		}
    140 		if (cp1 != macros[i].mac_end)
    141 			cp1++;
    142 	}
    143 	if (loopflg && ++count < argc)
    144 		goto TOP;
    145 }
    146