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/* This file is part of Eclat.
Copyright (C) 2012-2015 Sergey Poznyakoff.
Eclat is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
Eclat is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Eclat. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_GETOPT_H
# include <getopt.h>
#endif
#include <errno.h>
#include <sysexits.h>
#include <libeclat.h>
#include <json.h>
void
usage()
{
printf("usage: %s [OPTIONS] FILE [INPUT]\n", program_name);
}
static char *
readfile(FILE *fp)
{
char inbuf[4096];
char *buf;
size_t bufsize = 0;
size_t bufmax;
size_t n;
bufmax = sizeof(inbuf);
buf = grecs_malloc(bufmax);
while (n = fread(inbuf, 1, sizeof(inbuf), fp)) {
if (bufsize + n >= bufmax) {
bufmax *= 2;
buf = grecs_realloc(buf, bufmax);
}
memcpy(buf + bufsize, inbuf, n);
bufsize += n;
}
if (ferror(fp))
die(EX_NOINPUT, "read error");
if (bufsize + 1 >= bufmax) {
bufmax++;
buf = grecs_realloc(buf, bufmax);
}
buf[bufsize] = 0;
return buf;
}
int
main(int argc, char **argv)
{
char *file = "-";
FILE *fp;
int rc;
char *input;
struct json_object *obj;
set_program_name(argv[0]);
while ((rc = getopt(argc, argv, "f:h")) != EOF) {
switch (rc) {
case 'f':
file = optarg;
break;
case 'h':
usage();
return 0;
default:
exit(EX_USAGE);
}
}
argc -= optind;
argv += optind;
//FIXME: process args
if (strcmp(file, "-") == 0)
fp = stdin;
else {
fp = fopen(file, "r");
if (!fp)
die(EX_NOINPUT, "cannot open input file \"%s\": %s",
file, strerror(errno));
}
input = readfile(fp);
obj = json_parse_string(input, strlen(input));
if (!obj)
die(EX_DATAERR,
"%s: near %s",
json_err_diag,
json_err_ptr);
json_object_free(obj);
return 0;
}
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