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- /*-
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (c) 2007 Robert N. M. Watson
- * 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 AUTHOR 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 AUTHOR 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 <sys/cdefs.h>
- #include <err.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <sysexits.h>
- #include <unistd.h>
- #include "ddb.h"
- void ddb_readfile(char *file);
- void ddb_main(int argc, char *argv[]);
- void
- usage(void)
- {
- fprintf(stderr, "usage: ddb capture [-M core] [-N system] print\n");
- fprintf(stderr, " ddb capture [-M core] [-N system] status\n");
- fprintf(stderr, " ddb script scriptname\n");
- fprintf(stderr, " ddb script scriptname=script\n");
- fprintf(stderr, " ddb scripts\n");
- fprintf(stderr, " ddb unscript scriptname\n");
- fprintf(stderr, " ddb pathname\n");
- exit(EX_USAGE);
- }
- void
- ddb_readfile(char *filename)
- {
- char buf[BUFSIZ];
- FILE* f;
- if ((f = fopen(filename, "r")) == NULL)
- err(EX_UNAVAILABLE, "fopen: %s", filename);
- #define WHITESP " \t"
- #define MAXARG 2
- while (fgets(buf, BUFSIZ, f)) {
- int argc = 0;
- char *argv[MAXARG];
- size_t spn;
- spn = strlen(buf);
- if (buf[spn-1] == '\n')
- buf[spn-1] = '\0';
- spn = strspn(buf, WHITESP);
- argv[0] = buf + spn;
- if (*argv[0] == '#' || *argv[0] == '\0')
- continue;
- argc++;
- spn = strcspn(argv[0], WHITESP);
- argv[1] = argv[0] + spn + strspn(argv[0] + spn, WHITESP);
- argv[0][spn] = '\0';
- if (*argv[1] != '\0')
- argc++;
- #ifdef DEBUG
- {
- int i;
- printf("argc = %d\n", argc);
- for (i = 0; i < argc; i++) {
- printf("arg[%d] = %s\n", i, argv[i]);
- }
- }
- #endif
- ddb_main(argc, argv);
- }
- fclose(f);
- }
- void
- ddb_main(int argc, char *argv[])
- {
- if (argc < 1)
- usage();
- if (strcmp(argv[0], "capture") == 0)
- ddb_capture(argc, argv);
- else if (strcmp(argv[0], "script") == 0)
- ddb_script(argc, argv);
- else if (strcmp(argv[0], "scripts") == 0)
- ddb_scripts(argc, argv);
- else if (strcmp(argv[0], "unscript") == 0)
- ddb_unscript(argc, argv);
- else
- usage();
- }
- int
- main(int argc, char *argv[])
- {
- /*
- * If we've only got one argument and it's an absolute path to a file,
- * interpret as a file to be read in.
- */
- if (argc == 2 && argv[1][0] == '/' && access(argv[1], R_OK) == 0)
- ddb_readfile(argv[1]);
- else
- ddb_main(argc-1, argv+1);
- exit(EX_OK);
- }
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