freebsd-dev/contrib/libucl/tests/test_basic.c

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/* Copyright (c) 2013, Vsevolod Stakhov
* All rights reserved.
*
* 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 "ucl.h"
#include "ucl_internal.h"
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#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
int
main (int argc, char **argv)
{
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char *inbuf = NULL;
struct ucl_parser *parser = NULL, *parser2 = NULL;
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ucl_object_t *obj, *comments = NULL;
ssize_t bufsize, r;
FILE *in, *out;
unsigned char *emitted = NULL;
const char *fname_in = NULL, *fname_out = NULL;
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int ret = 0, opt, json = 0, compact = 0, yaml = 0,
save_comments = 0, skip_macro = 0,
flags, fd_out, fd_in, use_fd = 0;
struct ucl_emitter_functions *func;
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while ((opt = getopt(argc, argv, "fjcyCM")) != -1) {
switch (opt) {
case 'j':
json = 1;
break;
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case 'c':
compact = 1;
break;
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case 'C':
save_comments = 1;
break;
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case 'y':
yaml = 1;
break;
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case 'M':
skip_macro = true;
break;
case 'f':
use_fd = true;
break;
default: /* '?' */
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fprintf (stderr, "Usage: %s [-jcy] [-CM] [-f] [in] [out]\n",
argv[0]);
exit (EXIT_FAILURE);
}
}
argc -= optind;
argv += optind;
switch (argc) {
case 1:
fname_in = argv[0];
break;
case 2:
fname_in = argv[0];
fname_out = argv[1];
break;
}
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if (!use_fd) {
if (fname_in != NULL) {
in = fopen (fname_in, "r");
if (in == NULL) {
exit (-errno);
}
}
else {
in = stdin;
}
}
else {
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if (fname_in != NULL) {
fd_in = open (fname_in, O_RDONLY);
if (fd_in == -1) {
exit (-errno);
}
}
else {
fd_in = STDIN_FILENO;
}
}
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flags = UCL_PARSER_KEY_LOWERCASE;
if (save_comments) {
flags |= UCL_PARSER_SAVE_COMMENTS;
}
if (skip_macro) {
flags |= UCL_PARSER_DISABLE_MACRO;
}
parser = ucl_parser_new (flags);
ucl_parser_register_variable (parser, "ABI", "unknown");
if (fname_in != NULL) {
ucl_parser_set_filevars (parser, fname_in, true);
}
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if (!use_fd) {
inbuf = malloc (BUFSIZ);
bufsize = BUFSIZ;
r = 0;
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while (!feof (in) && !ferror (in)) {
if (r == bufsize) {
inbuf = realloc (inbuf, bufsize * 2);
bufsize *= 2;
if (inbuf == NULL) {
perror ("realloc");
exit (EXIT_FAILURE);
}
}
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r += fread (inbuf + r, 1, bufsize - r, in);
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}
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if (ferror (in)) {
fprintf (stderr, "Failed to read the input file.\n");
exit (EXIT_FAILURE);
}
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ucl_parser_add_chunk (parser, (const unsigned char *)inbuf, r);
fclose (in);
}
else {
ucl_parser_add_fd (parser, fd_in);
close (fd_in);
}
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if (!use_fd) {
if (fname_out != NULL) {
out = fopen (fname_out, "w");
if (out == NULL) {
exit (-errno);
}
}
else {
out = stdout;
}
}
else {
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if (fname_out != NULL) {
fd_out = open (fname_out, O_WRONLY | O_CREAT, 00644);
if (fd_out == -1) {
exit (-errno);
}
}
else {
fd_out = STDOUT_FILENO;
}
}
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if (ucl_parser_get_error (parser) != NULL) {
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fprintf (out, "Error occurred (phase 1): %s\n",
ucl_parser_get_error(parser));
ret = 1;
goto end;
}
obj = ucl_parser_get_object (parser);
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if (save_comments) {
comments = ucl_object_ref (ucl_parser_get_comments (parser));
}
if (json) {
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if (compact) {
emitted = ucl_object_emit (obj, UCL_EMIT_JSON_COMPACT);
}
else {
emitted = ucl_object_emit (obj, UCL_EMIT_JSON);
}
}
else if (yaml) {
emitted = ucl_object_emit (obj, UCL_EMIT_YAML);
}
else {
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emitted = NULL;
func = ucl_object_emit_memory_funcs ((void **)&emitted);
if (func != NULL) {
ucl_object_emit_full (obj, UCL_EMIT_CONFIG, func, comments);
ucl_object_emit_funcs_free (func);
}
}
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#if 0
fprintf (out, "%s\n****\n", emitted);
#endif
ucl_parser_free (parser);
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);
if (ucl_parser_get_error(parser2) != NULL) {
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fprintf (out, "Error occurred (phase 2): %s\n",
ucl_parser_get_error(parser2));
fprintf (out, "%s\n", emitted);
ret = 1;
goto end;
}
if (emitted != NULL) {
free (emitted);
}
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if (comments) {
ucl_object_unref (comments);
comments = NULL;
}
if (save_comments) {
comments = ucl_object_ref (ucl_parser_get_comments (parser2));
}
obj = ucl_parser_get_object (parser2);
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if (!use_fd) {
func = ucl_object_emit_file_funcs (out);
}
else {
func = ucl_object_emit_fd_funcs (fd_out);
}
if (func != NULL) {
if (json) {
if (compact) {
ucl_object_emit_full (obj, UCL_EMIT_JSON_COMPACT,
func, comments);
}
else {
ucl_object_emit_full (obj, UCL_EMIT_JSON,
func, comments);
}
}
else if (yaml) {
ucl_object_emit_full (obj, UCL_EMIT_YAML,
func, comments);
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}
else {
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ucl_object_emit_full (obj, UCL_EMIT_CONFIG,
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) {
fprintf (out, "\n");
fclose (out);
}
else {
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write (fd_out, "\n", 1);
close (fd_out);
}
ucl_object_unref (obj);
end:
if (parser2 != NULL) {
ucl_parser_free (parser2);
}
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if (comments) {
ucl_object_unref (comments);
}
if (inbuf != NULL) {
free (inbuf);
}
return ret;
}