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/*
* Copyright (c) 2007-2014, Lloyd Hilaiel <me@lloyd.io>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <yajl/yajl_parse.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static void
usage(const char * progname)
{
fprintf(stderr, "%s: validate json from stdin\n"
"usage: json_verify [options]\n"
" -c allow comments\n"
" -q quiet mode\n"
" -s verify a stream of multiple json entities\n"
" -u allow invalid utf8 inside strings\n",
progname);
exit(1);
}
int
main(int argc, char ** argv)
{
yajl_status stat;
size_t rd;
yajl_handle hand;
static unsigned char fileData[65536];
int quiet = 0;
int retval = 0;
int a = 1;
/* allocate a parser */
hand = yajl_alloc(NULL, NULL, NULL);
/* check arguments.*/
while ((a < argc) && (argv[a][0] == '-') && (strlen(argv[a]) > 1)) {
unsigned int i;
for ( i=1; i < strlen(argv[a]); i++) {
switch (argv[a][i]) {
case 'q':
quiet = 1;
break;
case 'c':
yajl_config(hand, yajl_allow_comments, 1);
break;
case 'u':
yajl_config(hand, yajl_dont_validate_strings, 1);
break;
case 's':
yajl_config(hand, yajl_allow_multiple_values, 1);
break;
default:
fprintf(stderr, "unrecognized option: '%c'\n\n", argv[a][i]);
usage(argv[0]);
}
}
++a;
}
if (a < argc) {
usage(argv[0]);
}
for (;;) {
rd = fread((void *) fileData, 1, sizeof(fileData) - 1, stdin);
retval = 0;
if (rd == 0) {
if (!feof(stdin)) {
if (!quiet) {
fprintf(stderr, "error encountered on file read\n");
}
retval = 1;
}
break;
}
fileData[rd] = 0;
/* read file data, pass to parser */
stat = yajl_parse(hand, fileData, rd);
if (stat != yajl_status_ok) break;
}
/* parse any remaining buffered data */
stat = yajl_complete_parse(hand);
if (stat != yajl_status_ok)
{
if (!quiet) {
unsigned char * str = yajl_get_error(hand, 1, fileData, rd);
fprintf(stderr, "%s", (const char *) str);
yajl_free_error(hand, str);
}
retval = 1;
}
yajl_free(hand);
if (!quiet) {
printf("JSON is %s\n", retval ? "invalid" : "valid");
}
return retval;
}
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