23dd078c8d
All decoding functions now accept a json_error_t** parameter and set it to point to a heap-allocated json_error_t structure if an error occurs. The contents of json_error_t are no longer exposed directly, a few functions to do it have been added instead. If an error occurs, the user must free the json_error_t value. This makes it possible to enhance the error reporting facilities in the future without breaking ABI compatibility with older versions. This is a backwards incompatible change.
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/*
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* Copyright (c) 2009, 2010 Petri Lehtinen <petri@digip.org>
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*
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* Jansson is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <jansson.h>
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static int getenv_int(const char *name)
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{
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char *value, *end;
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long result;
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value = getenv(name);
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if(!value)
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return 0;
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result = strtol(value, &end, 10);
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if(*end != '\0')
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return 0;
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return (int)result;
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}
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int main(int argc, char *argv[])
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{
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int indent = 0;
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size_t flags = 0;
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json_t *json;
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json_error_t *error;
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if(argc != 1) {
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fprintf(stderr, "usage: %s\n", argv[0]);
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return 2;
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}
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indent = getenv_int("JSON_INDENT");
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if(indent < 0 || indent > 255) {
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fprintf(stderr, "invalid value for JSON_INDENT: %d\n", indent);
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return 2;
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}
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if(indent > 0)
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flags |= JSON_INDENT(indent);
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if(getenv_int("JSON_COMPACT") > 0)
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flags |= JSON_COMPACT;
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if(getenv_int("JSON_ENSURE_ASCII"))
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flags |= JSON_ENSURE_ASCII;
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if(getenv_int("JSON_PRESERVE_ORDER"))
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flags |= JSON_PRESERVE_ORDER;
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if(getenv_int("JSON_SORT_KEYS"))
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flags |= JSON_SORT_KEYS;
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json = json_loadf(stdin, 0, &error);
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if(!json) {
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fprintf(stderr, "%d\n%s\n",
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json_error_line(error),
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json_error_msg(error));
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free(error);
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return 1;
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}
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json_dumpf(json, stdout, flags);
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json_decref(json);
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return 0;
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}
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