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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2022-07-26 05:11:40 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2022-07-26 05:18:07 +0000 |
commit | 2e650c1f5f2f79e7db10dec5dcdd1cffcaf47891 (patch) | |
tree | 82f2949088d2502e947b83ba9973de54f9bf4402 /util/json.c | |
parent | Releasing debian version 2.0-1. (diff) | |
download | nvme-cli-2e650c1f5f2f79e7db10dec5dcdd1cffcaf47891.tar.xz nvme-cli-2e650c1f5f2f79e7db10dec5dcdd1cffcaf47891.zip |
Merging upstream version 2.1~rc0 (Closes: #1015722).
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'util/json.c')
-rw-r--r-- | util/json.c | 406 |
1 files changed, 9 insertions, 397 deletions
diff --git a/util/json.c b/util/json.c index df0aefb..fd52861 100644 --- a/util/json.c +++ b/util/json.c @@ -1,407 +1,19 @@ -#include <stdlib.h> -#include <string.h> +// SPDX-License-Identifier: GPL-2.0-or-later #include <stdio.h> -#include <errno.h> -#include <stdarg.h> -#include "json.h" - -static inline void fail_and_notify(void) -{ - fprintf(stderr, "Allocation of memory for json object failed, aborting.\n"); - abort(); -} - -struct json_object *json_create_object(void) -{ - void *test = calloc(1, sizeof(struct json_object)); - if (!test) - fail_and_notify(); - return test; -} - -struct json_object *json_create_array(void) -{ - void *test = calloc(1, sizeof(struct json_object)); - if (!test) - fail_and_notify(); - return test; -} - -static struct json_pair *json_create_pair(const char *name, struct json_value *value) -{ - struct json_pair *pair = malloc(sizeof(struct json_pair)); - if (pair) { - pair->name = strdup(name); - pair->value = value; - - value->parent_type = JSON_PARENT_TYPE_PAIR; - value->parent_pair = pair; - } else - fail_and_notify(); - - return pair; -} - -static struct json_value *json_create_value_int(long long number) -{ - struct json_value *value = malloc(sizeof(struct json_value)); - - if (value) { - value->type = JSON_TYPE_INTEGER; - value->integer_number = number; - } else - fail_and_notify(); - - return value; -} - -static struct json_value *json_create_value_uint(unsigned long long number) -{ - struct json_value *value = malloc(sizeof(struct json_value)); - - if (value) { - value->type = JSON_TYPE_UINT; - value->uint_number = number; - } else - fail_and_notify(); - - return value; -} - -static struct json_value *json_create_value_float(long double number) -{ - struct json_value *value = malloc(sizeof(struct json_value)); - - if (value) { - value->type = JSON_TYPE_FLOAT; - value->float_number = number; - } else - fail_and_notify(); - return value; -} +#include "json.h" -static char *strdup_escape(const char *str) +struct json_object *util_json_object_new_double(long double d) { - const char *input = str; - char *p, *ret; - int escapes; + struct json_object *obj; + char *str; - if (!strlen(str)) + if (asprintf(&str, "%Lf", d) < 0) return NULL; - escapes = 0; - while ((input = strpbrk(input, "\\\"")) != NULL) { - escapes++; - input++; - } - - p = ret = malloc(strlen(str) + escapes + 1); - if (!ret) - fail_and_notify(); - - while (*str) { - if (*str == '\\' || *str == '\"') - *p++ = '\\'; - *p++ = *str++; - } - *p = '\0'; - - return ret; -} - -/* - * Valid JSON strings must escape '"' and '/' with a preceding '/' - */ -static struct json_value *json_create_value_string(const char *str) -{ - struct json_value *value = malloc(sizeof(struct json_value)); - - if (value) { - value->type = JSON_TYPE_STRING; - value->string = strdup_escape(str ? str : "(null)"); - if (!value->string) { - free(value); - value = NULL; - return value; - } - } - if (!value) - fail_and_notify(); - - return value; -} - -static struct json_value *json_create_value_object(struct json_object *obj) -{ - struct json_value *value = malloc(sizeof(struct json_value)); - - if (value) { - value->type = JSON_TYPE_OBJECT; - value->object = obj; - obj->parent = value; - } else - fail_and_notify(); + obj = json_object_new_string(str); - return value; -} - -static struct json_value *json_create_value_array(struct json_object *array) -{ - struct json_value *value = malloc(sizeof(struct json_value)); - - if (value) { - value->type = JSON_TYPE_ARRAY; - value->array = array; - array->parent = value; - } else - fail_and_notify(); - - return value; -} - -static void json_free_pair(struct json_pair *pair); -static void json_free_value(struct json_value *value); + free(str); + return obj; -void json_free_object(struct json_object *obj) -{ - int i; - - for (i = 0; i < obj->pair_cnt; i++) - json_free_pair(obj->pairs[i]); - free(obj->pairs); - free(obj); -} - -void json_free_array(struct json_object *array) -{ - int i; - - for (i = 0; i < array->value_cnt; i++) - json_free_value(array->values[i]); - free(array->values); - free(array); -} - -static void json_free_pair(struct json_pair *pair) -{ - json_free_value(pair->value); - free(pair->name); - free(pair); -} - -static void json_free_value(struct json_value *value) -{ - switch (value->type) { - case JSON_TYPE_STRING: - free(value->string); - break; - case JSON_TYPE_OBJECT: - json_free_object(value->object); - break; - case JSON_TYPE_ARRAY: - json_free_array(value->array); - break; - } - free(value); -} - -static int json_array_add_value(struct json_object *array, struct json_value *value) -{ - struct json_value **values = realloc(array->values, - sizeof(struct json_value *) * (array->value_cnt + 1)); - - if (!values) - return ENOMEM; - values[array->value_cnt] = value; - array->value_cnt++; - array->values = values; - - value->parent_type = JSON_PARENT_TYPE_ARRAY; - value->parent_array = array; - return 0; -} - -static int json_object_add_pair(struct json_object *obj, struct json_pair *pair) -{ - struct json_pair **pairs = realloc(obj->pairs, - sizeof(struct json_pair *) * (obj->pair_cnt + 1)); - if (!pairs) - return ENOMEM; - pairs[obj->pair_cnt] = pair; - obj->pair_cnt++; - obj->pairs = pairs; - - pair->parent = obj; - return 0; -} - -int json_object_add_value_type(struct json_object *obj, const char *name, int type, ...) -{ - struct json_value *value; - struct json_pair *pair; - va_list args; - int ret; - - va_start(args, type); - if (type == JSON_TYPE_STRING) - value = json_create_value_string(va_arg(args, char *)); - else if (type == JSON_TYPE_INTEGER) - value = json_create_value_int(va_arg(args, long long)); - else if (type == JSON_TYPE_UINT) - value = json_create_value_uint(va_arg(args, unsigned long long)); - else if (type == JSON_TYPE_FLOAT) - value = json_create_value_float(va_arg(args, long double)); - else if (type == JSON_TYPE_OBJECT) - value = json_create_value_object(va_arg(args, struct json_object *)); - else - value = json_create_value_array(va_arg(args, struct json_object *)); - va_end(args); - - if (!value) - return ENOMEM; - - pair = json_create_pair(name, value); - if (!pair) { - json_free_value(value); - return ENOMEM; - } - ret = json_object_add_pair(obj, pair); - if (ret) { - json_free_pair(pair); - return ENOMEM; - } - return 0; -} - -static void json_print_array(struct json_object *array, void *); -int json_array_add_value_type(struct json_object *array, int type, ...) -{ - struct json_value *value; - va_list args; - int ret; - - va_start(args, type); - if (type == JSON_TYPE_STRING) - value = json_create_value_string(va_arg(args, char *)); - else if (type == JSON_TYPE_INTEGER) - value = json_create_value_int(va_arg(args, long long)); - else if (type == JSON_TYPE_UINT) - value = json_create_value_uint(va_arg(args, unsigned long long)); - else if (type == JSON_TYPE_FLOAT) - value = json_create_value_float(va_arg(args, double)); - else if (type == JSON_TYPE_OBJECT) - value = json_create_value_object(va_arg(args, struct json_object *)); - else - value = json_create_value_array(va_arg(args, struct json_object *)); - va_end(args); - - if (!value) - return ENOMEM; - - ret = json_array_add_value(array, value); - if (ret) { - json_free_value(value); - return ENOMEM; - } - return 0; -} - -static int json_value_level(struct json_value *value); -static int json_pair_level(struct json_pair *pair); -static int json_array_level(struct json_object *array); -static int json_object_level(struct json_object *object) -{ - if (object->parent == NULL) - return 0; - return json_value_level(object->parent); -} - -static int json_pair_level(struct json_pair *pair) -{ - return json_object_level(pair->parent) + 1; -} - -static int json_array_level(struct json_object *array) -{ - return json_value_level(array->parent); -} - -static int json_value_level(struct json_value *value) -{ - if (value->parent_type == JSON_PARENT_TYPE_PAIR) - return json_pair_level(value->parent_pair); - else - return json_array_level(value->parent_array) + 1; -} - -static void json_print_level(int level, void *out) -{ - while (level-- > 0) - printf(" "); -} - -static void json_print_pair(struct json_pair *pair, void *); -static void json_print_array(struct json_object *array, void *); -static void json_print_value(struct json_value *value, void *); -void json_print_object(struct json_object *obj, void *out) -{ - int i; - - printf("{\n"); - for (i = 0; i < obj->pair_cnt; i++) { - if (i > 0) - printf(",\n"); - json_print_pair(obj->pairs[i], out); - } - printf("\n"); - json_print_level(json_object_level(obj), out); - printf("}"); -} - -static void json_print_pair(struct json_pair *pair, void *out) -{ - json_print_level(json_pair_level(pair), out); - printf("\"%s\" : ", pair->name); - json_print_value(pair->value, out); -} - -static void json_print_array(struct json_object *array, void *out) -{ - int i; - - printf("[\n"); - for (i = 0; i < array->value_cnt; i++) { - if (i > 0) - printf(",\n"); - json_print_level(json_value_level(array->values[i]), out); - json_print_value(array->values[i], out); - } - printf("\n"); - json_print_level(json_array_level(array), out); - printf("]"); -} - -static void json_print_value(struct json_value *value, void *out) -{ - switch (value->type) { - case JSON_TYPE_STRING: - printf( "\"%s\"", value->string); - break; - case JSON_TYPE_INTEGER: - printf( "%lld", value->integer_number); - break; - case JSON_TYPE_UINT: - printf( "%llu", value->uint_number); - break; - case JSON_TYPE_FLOAT: - printf( "%.0Lf", value->float_number); - break; - case JSON_TYPE_OBJECT: - json_print_object(value->object, out); - break; - case JSON_TYPE_ARRAY: - json_print_array(value->array, out); - break; - } } |