130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
/*-
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* Copyright (c) 2007 Robert N. M. Watson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include <unistd.h>
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#include "ddb.h"
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void ddb_readfile(char *file);
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void ddb_main(int argc, char *argv[]);
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void
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usage(void)
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{
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fprintf(stderr, "usage:\n");
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fprintf(stderr, "ddb script scriptname\n");
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fprintf(stderr, "ddb script scriptname=script\n");
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fprintf(stderr, "ddb scripts\n");
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fprintf(stderr, "ddb unscript scriptname\n");
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exit(EX_USAGE);
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}
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void
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ddb_readfile(char *filename)
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{
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char buf[BUFSIZ];
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FILE* f;
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if ((f = fopen(filename, "r")) == NULL)
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err(EX_UNAVAILABLE, "fopen: %s", filename);
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#define WHITESP " \t"
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#define MAXARG 2
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while (fgets(buf, BUFSIZ, f)) {
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int argc = 0;
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char *argv[MAXARG];
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size_t spn;
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spn = strlen(buf);
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if (buf[spn-1] == '\n')
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buf[spn-1] = '\0';
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spn = strspn(buf, WHITESP);
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argv[0] = buf + spn;
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if (*argv[0] == '#' || *argv[0] == '\0')
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continue;
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argc++;
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spn = strcspn(argv[0], WHITESP);
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argv[1] = argv[0] + spn + strspn(argv[0] + spn, WHITESP);;
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argv[0][spn] = '\0';
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if (*argv[1] != '\0')
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argc++;
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#ifdef DEBUG
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{
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int i;
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printf("argc = %d\n", argc);
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for (i = 0; i < argc; i++) {
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printf("arg[%d] = %s\n", i, argv[i]);
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}
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}
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#endif
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ddb_main(argc, argv);
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}
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}
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void
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ddb_main(int argc, char *argv[])
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{
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if (argc < 1)
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usage();
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if (strcmp(argv[0], "script") == 0)
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ddb_script(argc, argv);
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else if (strcmp(argv[0], "scripts") == 0)
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ddb_scripts(argc, argv);
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else if (strcmp(argv[0], "unscript") == 0)
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ddb_unscript(argc, argv);
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else
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usage();
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}
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int
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main(int argc, char *argv[])
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{
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/*
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* If we've only got one argument and it's an absolute path to a file,
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* interpret as a file to be read in.
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*/
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if (argc == 2 && argv[1][0] == '/' && access(argv[1], R_OK) == 0)
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ddb_readfile(argv[1]);
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else
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ddb_main(argc-1, argv+1);
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exit(EX_OK);
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}
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