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/*-
* 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>
__FBSDID("$FreeBSD$");
#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:\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");
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);
}
}
void
ddb_main(int argc, char *argv[])
{
if (argc < 1)
usage();
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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