304 lines
6.3 KiB
C
304 lines
6.3 KiB
C
/* Copyright (c) 2013, Vsevolod Stakhov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "ucl.h"
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#include "ucl_internal.h"
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.h>
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int
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main (int argc, char **argv)
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{
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char *inbuf = NULL;
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struct ucl_parser *parser = NULL, *parser2 = NULL;
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ucl_object_t *obj, *comments = NULL;
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ssize_t bufsize, r;
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FILE *in, *out;
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unsigned char *emitted = NULL;
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const char *fname_in = NULL, *fname_out = NULL;
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int ret = 0, opt, json = 0, compact = 0, yaml = 0,
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save_comments = 0, skip_macro = 0,
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flags, fd_out, fd_in, use_fd = 0, msgpack_input = 0;
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struct ucl_emitter_functions *func;
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while ((opt = getopt(argc, argv, "fjcyCMm")) != -1) {
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switch (opt) {
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case 'j':
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json = 1;
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break;
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case 'c':
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compact = 1;
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break;
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case 'C':
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save_comments = 1;
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break;
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case 'y':
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yaml = 1;
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break;
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case 'M':
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skip_macro = true;
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break;
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case 'm':
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msgpack_input = 1;
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break;
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case 'f':
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use_fd = true;
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break;
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default: /* '?' */
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fprintf (stderr, "Usage: %s [-jcy] [-CM] [-f] [in] [out]\n",
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argv[0]);
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exit (EXIT_FAILURE);
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}
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}
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argc -= optind;
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argv += optind;
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switch (argc) {
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case 1:
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fname_in = argv[0];
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break;
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case 2:
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fname_in = argv[0];
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fname_out = argv[1];
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break;
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}
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if (!use_fd) {
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if (fname_in != NULL) {
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in = fopen (fname_in, "r");
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if (in == NULL) {
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exit (-errno);
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}
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}
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else {
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in = stdin;
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}
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}
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else {
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if (fname_in != NULL) {
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fd_in = open (fname_in, O_RDONLY);
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if (fd_in == -1) {
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exit (-errno);
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}
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}
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else {
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fd_in = STDIN_FILENO;
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}
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}
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flags = UCL_PARSER_KEY_LOWERCASE;
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if (save_comments) {
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flags |= UCL_PARSER_SAVE_COMMENTS;
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}
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if (skip_macro) {
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flags |= UCL_PARSER_DISABLE_MACRO;
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}
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parser = ucl_parser_new (flags);
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ucl_parser_register_variable (parser, "ABI", "unknown");
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if (fname_in != NULL) {
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ucl_parser_set_filevars (parser, fname_in, true);
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}
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if (!use_fd) {
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inbuf = malloc (BUFSIZ);
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bufsize = BUFSIZ;
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r = 0;
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while (!feof (in) && !ferror (in)) {
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if (r == bufsize) {
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inbuf = realloc (inbuf, bufsize * 2);
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bufsize *= 2;
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if (inbuf == NULL) {
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perror ("realloc");
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exit (EXIT_FAILURE);
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}
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}
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r += fread (inbuf + r, 1, bufsize - r, in);
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}
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if (ferror (in)) {
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fprintf (stderr, "Failed to read the input file.\n");
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exit (EXIT_FAILURE);
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}
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ucl_parser_add_chunk_full (parser, (const unsigned char *)inbuf, r,
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0, UCL_DUPLICATE_APPEND,
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msgpack_input ? UCL_PARSE_MSGPACK : UCL_PARSE_UCL);
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fclose (in);
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}
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else {
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ucl_parser_add_fd (parser, fd_in);
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close (fd_in);
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}
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if (!use_fd) {
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if (fname_out != NULL) {
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out = fopen (fname_out, "w");
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if (out == NULL) {
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exit (-errno);
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}
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}
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else {
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out = stdout;
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}
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}
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else {
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if (fname_out != NULL) {
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fd_out = open (fname_out, O_WRONLY | O_CREAT, 00644);
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if (fd_out == -1) {
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exit (-errno);
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}
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}
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else {
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fd_out = STDOUT_FILENO;
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}
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}
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if (ucl_parser_get_error (parser) != NULL) {
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fprintf (out, "Error occurred (phase 1): %s\n",
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ucl_parser_get_error(parser));
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ret = 1;
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goto end;
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}
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obj = ucl_parser_get_object (parser);
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if (save_comments) {
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comments = ucl_object_ref (ucl_parser_get_comments (parser));
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}
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if (json) {
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if (compact) {
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emitted = ucl_object_emit (obj, UCL_EMIT_JSON_COMPACT);
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}
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else {
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emitted = ucl_object_emit (obj, UCL_EMIT_JSON);
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}
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}
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else if (yaml) {
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emitted = ucl_object_emit (obj, UCL_EMIT_YAML);
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}
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else {
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emitted = NULL;
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func = ucl_object_emit_memory_funcs ((void **)&emitted);
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if (func != NULL) {
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ucl_object_emit_full (obj, UCL_EMIT_CONFIG, func, comments);
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ucl_object_emit_funcs_free (func);
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}
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}
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#if 0
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fprintf (out, "%s\n****\n", emitted);
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#endif
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ucl_parser_free (parser);
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ucl_object_unref (obj);
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parser2 = ucl_parser_new (flags);
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ucl_parser_add_string (parser2, (const char *)emitted, 0);
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if (ucl_parser_get_error(parser2) != NULL) {
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fprintf (out, "Error occurred (phase 2): %s\n",
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ucl_parser_get_error(parser2));
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fprintf (out, "%s\n", emitted);
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ret = 1;
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goto end;
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}
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if (emitted != NULL) {
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free (emitted);
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}
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if (comments) {
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ucl_object_unref (comments);
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comments = NULL;
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}
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if (save_comments) {
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comments = ucl_object_ref (ucl_parser_get_comments (parser2));
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}
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obj = ucl_parser_get_object (parser2);
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if (!use_fd) {
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func = ucl_object_emit_file_funcs (out);
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}
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else {
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func = ucl_object_emit_fd_funcs (fd_out);
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}
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if (func != NULL) {
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if (json) {
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if (compact) {
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ucl_object_emit_full (obj, UCL_EMIT_JSON_COMPACT,
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func, comments);
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}
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else {
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ucl_object_emit_full (obj, UCL_EMIT_JSON,
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func, comments);
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}
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}
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else if (yaml) {
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ucl_object_emit_full (obj, UCL_EMIT_YAML,
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func, comments);
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}
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else {
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ucl_object_emit_full (obj, UCL_EMIT_CONFIG,
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func, comments);
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}
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ucl_object_emit_funcs_free (func);
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}
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if (!use_fd) {
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fprintf (out, "\n");
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fclose (out);
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}
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else {
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write (fd_out, "\n", 1);
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close (fd_out);
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}
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ucl_object_unref (obj);
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end:
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if (parser2 != NULL) {
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ucl_parser_free (parser2);
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}
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if (comments) {
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ucl_object_unref (comments);
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}
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if (inbuf != NULL) {
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free (inbuf);
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}
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return ret;
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}
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