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/* Copyright (c) 2015, Cesanta Software
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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 ''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 AUTHOR 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 <stdio.h>
#include <getopt.h>
#include <stdlib.h>
#include "ucl.h"
static struct option opts[] = {
{"help", no_argument, NULL, 'h'},
{"in", required_argument, NULL, 'i' },
{"out", required_argument, NULL, 'o' },
{"schema", required_argument, NULL, 's'},
{"format", required_argument, NULL, 'f'},
{0, 0, 0, 0}
};
void usage(const char *name, FILE *out) {
fprintf(out, "Usage: %s [--help] [-i|--in file] [-o|--out file]\n", name);
fprintf(out, " [-s|--schema file] [-f|--format format]\n\n");
fprintf(out, " --help - print this message and exit\n");
fprintf(out, " --in - specify input filename "
"(default: standard input)\n");
fprintf(out, " --out - specify output filename "
"(default: standard output)\n");
fprintf(out, " --schema - specify schema file for validation\n");
fprintf(out, " --format - output format. Options: ucl (default), "
"json, compact_json, yaml, msgpack\n");
}
int main(int argc, char **argv) {
char ch;
FILE *in = stdin, *out = stdout;
const char *schema = NULL;
unsigned char *buf = NULL;
size_t size = 0, r = 0;
struct ucl_parser *parser = NULL;
ucl_object_t *obj = NULL;
ucl_emitter_t emitter = UCL_EMIT_CONFIG;
while((ch = getopt_long(argc, argv, "hi:o:s:f:", opts, NULL)) != -1) {
switch (ch) {
case 'i':
in = fopen(optarg, "r");
if (in == NULL) {
perror("fopen on input file");
exit(EXIT_FAILURE);
}
break;
case 'o':
out = fopen(optarg, "w");
if (out == NULL) {
perror("fopen on output file");
exit(EXIT_FAILURE);
}
break;
case 's':
schema = optarg;
break;
case 'f':
if (strcmp(optarg, "ucl") == 0) {
emitter = UCL_EMIT_CONFIG;
} else if (strcmp(optarg, "json") == 0) {
emitter = UCL_EMIT_JSON;
} else if (strcmp(optarg, "yaml") == 0) {
emitter = UCL_EMIT_YAML;
} else if (strcmp(optarg, "compact_json") == 0) {
emitter = UCL_EMIT_JSON_COMPACT;
} else if (strcmp(optarg, "msgpack") == 0) {
emitter = UCL_EMIT_MSGPACK;
} else {
fprintf(stderr, "Unknown output format: %s\n", optarg);
exit(EXIT_FAILURE);
}
break;
case 'h':
usage(argv[0], stdout);
exit(0);
default:
usage(argv[0], stderr);
exit(EXIT_FAILURE);
break;
}
}
parser = ucl_parser_new(0);
buf = malloc(BUFSIZ);
size = BUFSIZ;
while(!feof(in) && !ferror(in)) {
if (r == size) {
buf = realloc(buf, size*2);
size *= 2;
if (buf == NULL) {
perror("realloc");
exit(EXIT_FAILURE);
}
}
r += fread(buf + r, 1, size - r, in);
}
if (ferror(in)) {
fprintf(stderr, "Failed to read the input file.\n");
exit(EXIT_FAILURE);
}
fclose(in);
if (!ucl_parser_add_chunk(parser, buf, r)) {
fprintf(stderr, "Failed to parse input file: %s\n",
ucl_parser_get_error(parser));
exit(EXIT_FAILURE);
}
if ((obj = ucl_parser_get_object(parser)) == NULL) {
fprintf(stderr, "Failed to get root object: %s\n",
ucl_parser_get_error(parser));
exit(EXIT_FAILURE);
}
if (schema != NULL) {
struct ucl_parser *schema_parser = ucl_parser_new(0);
ucl_object_t *schema_obj = NULL;
struct ucl_schema_error error;
if (!ucl_parser_add_file(schema_parser, schema)) {
fprintf(stderr, "Failed to parse schema file: %s\n",
ucl_parser_get_error(schema_parser));
exit(EXIT_FAILURE);
}
if ((schema_obj = ucl_parser_get_object(schema_parser)) == NULL) {
fprintf(stderr, "Failed to get root object: %s\n",
ucl_parser_get_error(schema_parser));
exit(EXIT_FAILURE);
}
if (!ucl_object_validate(schema_obj, obj, &error)) {
fprintf(stderr, "Validation failed: %s\n", error.msg);
exit(EXIT_FAILURE);
}
}
if (emitter != UCL_EMIT_MSGPACK) {
fprintf(out, "%s\n", ucl_object_emit(obj, emitter));
}
else {
size_t len;
unsigned char *res;
res = ucl_object_emit_len(obj, emitter, &len);
fwrite(res, 1, len, out);
}
return 0;
}
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