X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/82258709f6c66a06c4f09dc902128c2d1eb41389..556826b5d52152450259311c613695ee5adcac04:/client/jansson/dump.c

diff --git a/client/jansson/dump.c b/client/jansson/dump.c
new file mode 100644
index 00000000..8e725c93
--- /dev/null
+++ b/client/jansson/dump.c
@@ -0,0 +1,504 @@
+/*
+ * Copyright (c) 2009-2016 Petri Lehtinen <petri@digip.org>
+ *
+ * Jansson is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include "jansson_private.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "jansson.h"
+#include "strbuffer.h"
+#include "utf.h"
+
+#define MAX_INTEGER_STR_LENGTH  100
+#define MAX_REAL_STR_LENGTH     100
+
+#define FLAGS_TO_INDENT(f)      ((f) & 0x1F)
+#define FLAGS_TO_PRECISION(f)   (((f) >> 11) & 0x1F)
+
+struct buffer {
+    const size_t size;
+    size_t used;
+    char *data;
+};
+
+static int dump_to_strbuffer(const char *buffer, size_t size, void *data)
+{
+    return strbuffer_append_bytes((strbuffer_t *)data, buffer, size);
+}
+
+static int dump_to_buffer(const char *buffer, size_t size, void *data)
+{
+    struct buffer *buf = (struct buffer *)data;
+
+    if(buf->used + size <= buf->size)
+        memcpy(&buf->data[buf->used], buffer, size);
+
+    buf->used += size;
+    return 0;
+}
+
+static int dump_to_file(const char *buffer, size_t size, void *data)
+{
+    FILE *dest = (FILE *)data;
+    if(fwrite(buffer, size, 1, dest) != 1)
+        return -1;
+    return 0;
+}
+
+static int dump_to_fd(const char *buffer, size_t size, void *data)
+{
+    int *dest = (int *)data;
+#ifdef HAVE_UNISTD_H
+    if(write(*dest, buffer, size) == (ssize_t)size)
+        return 0;
+#endif
+    return -1;
+}
+
+/* 32 spaces (the maximum indentation size) */
+static const char whitespace[] = "                                ";
+
+static int dump_indent(size_t flags, int depth, int space, json_dump_callback_t dump, void *data)
+{
+    if(FLAGS_TO_INDENT(flags) > 0)
+    {
+        unsigned int ws_count = FLAGS_TO_INDENT(flags), n_spaces = depth * ws_count;
+
+        if(dump("\n", 1, data))
+            return -1;
+
+        while(n_spaces > 0)
+        {
+            int cur_n = n_spaces < sizeof whitespace - 1 ? n_spaces : sizeof whitespace - 1;
+
+            if(dump(whitespace, cur_n, data))
+                return -1;
+
+            n_spaces -= cur_n;
+        }
+    }
+    else if(space && !(flags & JSON_COMPACT))
+    {
+        return dump(" ", 1, data);
+    }
+    return 0;
+}
+
+static int dump_string(const char *str, size_t len, json_dump_callback_t dump, void *data, size_t flags)
+{
+    const char *pos, *end, *lim;
+    int32_t codepoint;
+
+    if(dump("\"", 1, data))
+        return -1;
+
+    end = pos = str;
+    lim = str + len;
+    while(1)
+    {
+        const char *text;
+        char seq[13];
+        int length;
+
+        while(end < lim)
+        {
+            end = utf8_iterate(pos, lim - pos, &codepoint);
+            if(!end)
+                return -1;
+
+            /* mandatory escape or control char */
+            if(codepoint == '\\' || codepoint == '"' || codepoint < 0x20)
+                break;
+
+            /* slash */
+            if((flags & JSON_ESCAPE_SLASH) && codepoint == '/')
+                break;
+
+            /* non-ASCII */
+            if((flags & JSON_ENSURE_ASCII) && codepoint > 0x7F)
+                break;
+
+            pos = end;
+        }
+
+        if(pos != str) {
+            if(dump(str, pos - str, data))
+                return -1;
+        }
+
+        if(end == pos)
+            break;
+
+        /* handle \, /, ", and control codes */
+        length = 2;
+        switch(codepoint)
+        {
+            case '\\': text = "\\\\"; break;
+            case '\"': text = "\\\""; break;
+            case '\b': text = "\\b"; break;
+            case '\f': text = "\\f"; break;
+            case '\n': text = "\\n"; break;
+            case '\r': text = "\\r"; break;
+            case '\t': text = "\\t"; break;
+            case '/':  text = "\\/"; break;
+            default:
+            {
+                /* codepoint is in BMP */
+                if(codepoint < 0x10000)
+                {
+                    snprintf(seq, sizeof(seq), "\\u%04X", (unsigned int)codepoint);
+                    length = 6;
+                }
+
+                /* not in BMP -> construct a UTF-16 surrogate pair */
+                else
+                {
+                    int32_t first, last;
+
+                    codepoint -= 0x10000;
+                    first = 0xD800 | ((codepoint & 0xffc00) >> 10);
+                    last = 0xDC00 | (codepoint & 0x003ff);
+
+                    snprintf(seq, sizeof(seq), "\\u%04X\\u%04X", (unsigned int)first, (unsigned int)last);
+                    length = 12;
+                }
+
+                text = seq;
+                break;
+            }
+        }
+
+        if(dump(text, length, data))
+            return -1;
+
+        str = pos = end;
+    }
+
+    return dump("\"", 1, data);
+}
+
+static int compare_keys(const void *key1, const void *key2)
+{
+    return strcmp(*(const char **)key1, *(const char **)key2);
+}
+
+static int loop_check(hashtable_t *parents, const json_t *json, char *key, size_t key_size)
+{
+    snprintf(key, key_size, "%p", json);
+    if (hashtable_get(parents, key))
+        return -1;
+
+    return hashtable_set(parents, key, json_null());
+}
+
+static int do_dump(const json_t *json, size_t flags, int depth,
+                   hashtable_t *parents, json_dump_callback_t dump, void *data)
+{
+    int embed = flags & JSON_EMBED;
+
+    flags &= ~JSON_EMBED;
+
+    if(!json)
+        return -1;
+
+    switch(json_typeof(json)) {
+        case JSON_NULL:
+            return dump("null", 4, data);
+
+        case JSON_TRUE:
+            return dump("true", 4, data);
+
+        case JSON_FALSE:
+            return dump("false", 5, data);
+
+        case JSON_INTEGER:
+        {
+            char buffer[MAX_INTEGER_STR_LENGTH];
+            int size;
+
+            size = snprintf(buffer, MAX_INTEGER_STR_LENGTH,
+                            "%" JSON_INTEGER_FORMAT,
+                            json_integer_value(json));
+            if(size < 0 || size >= MAX_INTEGER_STR_LENGTH)
+                return -1;
+
+            return dump(buffer, size, data);
+        }
+
+        case JSON_REAL:
+        {
+            char buffer[MAX_REAL_STR_LENGTH];
+            int size;
+            double value = json_real_value(json);
+
+            size = jsonp_dtostr(buffer, MAX_REAL_STR_LENGTH, value,
+                                FLAGS_TO_PRECISION(flags));
+            if(size < 0)
+                return -1;
+
+            return dump(buffer, size, data);
+        }
+
+        case JSON_STRING:
+            return dump_string(json_string_value(json), json_string_length(json), dump, data, flags);
+
+        case JSON_ARRAY:
+        {
+            size_t n;
+            size_t i;
+            /* Space for "0x", double the sizeof a pointer for the hex and a terminator. */
+            char key[2 + (sizeof(json) * 2) + 1];
+
+            /* detect circular references */
+            if (loop_check(parents, json, key, sizeof(key)))
+                return -1;
+
+            n = json_array_size(json);
+
+            if(!embed && dump("[", 1, data))
+                return -1;
+            if(n == 0) {
+                hashtable_del(parents, key);
+                return embed ? 0 : dump("]", 1, data);
+            }
+            if(dump_indent(flags, depth + 1, 0, dump, data))
+                return -1;
+
+            for(i = 0; i < n; ++i) {
+                if(do_dump(json_array_get(json, i), flags, depth + 1,
+                           parents, dump, data))
+                    return -1;
+
+                if(i < n - 1)
+                {
+                    if(dump(",", 1, data) ||
+                       dump_indent(flags, depth + 1, 1, dump, data))
+                        return -1;
+                }
+                else
+                {
+                    if(dump_indent(flags, depth, 0, dump, data))
+                        return -1;
+                }
+            }
+
+            hashtable_del(parents, key);
+            return embed ? 0 : dump("]", 1, data);
+        }
+
+        case JSON_OBJECT:
+        {
+            void *iter;
+            const char *separator;
+            int separator_length;
+            /* Space for "0x", double the sizeof a pointer for the hex and a terminator. */
+            char key[2 + (sizeof(json) * 2) + 1];
+
+            if(flags & JSON_COMPACT) {
+                separator = ":";
+                separator_length = 1;
+            }
+            else {
+                separator = ": ";
+                separator_length = 2;
+            }
+
+            /* detect circular references */
+            if (loop_check(parents, json, key, sizeof(key)))
+                return -1;
+
+            iter = json_object_iter((json_t *)json);
+
+            if(!embed && dump("{", 1, data))
+                return -1;
+            if(!iter) {
+                hashtable_del(parents, key);
+                return embed ? 0 : dump("}", 1, data);
+            }
+            if(dump_indent(flags, depth + 1, 0, dump, data))
+                return -1;
+
+            if(flags & JSON_SORT_KEYS)
+            {
+                const char **keys;
+                size_t size, i;
+
+                size = json_object_size(json);
+                keys = jsonp_malloc(size * sizeof(const char *));
+                if(!keys)
+                    return -1;
+
+                i = 0;
+                while(iter)
+                {
+                    keys[i] = json_object_iter_key(iter);
+                    iter = json_object_iter_next((json_t *)json, iter);
+                    i++;
+                }
+                assert(i == size);
+
+                qsort(keys, size, sizeof(const char *), compare_keys);
+
+                for(i = 0; i < size; i++)
+                {
+                    const char *key;
+                    json_t *value;
+
+                    key = keys[i];
+                    value = json_object_get(json, key);
+                    assert(value);
+
+                    dump_string(key, strlen(key), dump, data, flags);
+                    if(dump(separator, separator_length, data) ||
+                       do_dump(value, flags, depth + 1, parents, dump, data))
+                    {
+                        jsonp_free(keys);
+                        return -1;
+                    }
+
+                    if(i < size - 1)
+                    {
+                        if(dump(",", 1, data) ||
+                           dump_indent(flags, depth + 1, 1, dump, data))
+                        {
+                            jsonp_free(keys);
+                            return -1;
+                        }
+                    }
+                    else
+                    {
+                        if(dump_indent(flags, depth, 0, dump, data))
+                        {
+                            jsonp_free(keys);
+                            return -1;
+                        }
+                    }
+                }
+
+                jsonp_free(keys);
+            }
+            else
+            {
+                /* Don't sort keys */
+
+                while(iter)
+                {
+                    void *next = json_object_iter_next((json_t *)json, iter);
+                    const char *key = json_object_iter_key(iter);
+
+                    dump_string(key, strlen(key), dump, data, flags);
+                    if(dump(separator, separator_length, data) ||
+                       do_dump(json_object_iter_value(iter), flags, depth + 1,
+                               parents, dump, data))
+                        return -1;
+
+                    if(next)
+                    {
+                        if(dump(",", 1, data) ||
+                           dump_indent(flags, depth + 1, 1, dump, data))
+                            return -1;
+                    }
+                    else
+                    {
+                        if(dump_indent(flags, depth, 0, dump, data))
+                            return -1;
+                    }
+
+                    iter = next;
+                }
+            }
+
+            hashtable_del(parents, key);
+            return embed ? 0 : dump("}", 1, data);
+        }
+
+        default:
+            /* not reached */
+            return -1;
+    }
+}
+
+char *json_dumps(const json_t *json, size_t flags)
+{
+    strbuffer_t strbuff;
+    char *result;
+
+    if(strbuffer_init(&strbuff))
+        return NULL;
+
+    if(json_dump_callback(json, dump_to_strbuffer, (void *)&strbuff, flags))
+        result = NULL;
+    else
+        result = jsonp_strdup(strbuffer_value(&strbuff));
+
+    strbuffer_close(&strbuff);
+    return result;
+}
+
+size_t json_dumpb(const json_t *json, char *buffer, size_t size, size_t flags)
+{
+    struct buffer buf = { size, 0, buffer };
+
+    if(json_dump_callback(json, dump_to_buffer, (void *)&buf, flags))
+        return 0;
+
+    return buf.used;
+}
+
+int json_dumpf(const json_t *json, FILE *output, size_t flags)
+{
+    return json_dump_callback(json, dump_to_file, (void *)output, flags);
+}
+
+int json_dumpfd(const json_t *json, int output, size_t flags)
+{
+    return json_dump_callback(json, dump_to_fd, (void *)&output, flags);
+}
+
+int json_dump_file(const json_t *json, const char *path, size_t flags)
+{
+    int result;
+
+    FILE *output = fopen(path, "w");
+    if(!output)
+        return -1;
+
+    result = json_dumpf(json, output, flags);
+
+    if(fclose(output) != 0)
+        return -1;
+
+    return result;
+}
+
+int json_dump_callback(const json_t *json, json_dump_callback_t callback, void *data, size_t flags)
+{
+    int res;
+    hashtable_t parents_set;
+
+    if(!(flags & JSON_ENCODE_ANY)) {
+        if(!json_is_array(json) && !json_is_object(json))
+           return -1;
+    }
+
+    if (hashtable_init(&parents_set))
+        return -1;
+    res = do_dump(json, flags, 0, &parents_set, callback, data);
+    hashtable_close(&parents_set);
+
+    return res;
+}