Nigel Rantor / azure_c_shared_utility

Azure IoT common library

Fork of azure_c_shared_utility by Azure IoT

strings.c@30:ce3813c5a692, 2017-07-14 (annotated)

Committer:
AzureIoTClient
Date:
Fri Jul 14 16:38:40 2017 -0700
Revision:
30:ce3813c5a692
Parent:
25:8507bf644fdf 
1.1.19

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Azure.IoT Build 0:fa2de1b79154 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:fa2de1b79154 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:fa2de1b79154 3
Azure.IoT Build 0:fa2de1b79154 4 //
Azure.IoT Build 0:fa2de1b79154 5 // PUT NO INCLUDES BEFORE HERE
Azure.IoT Build 0:fa2de1b79154 6 //
Azure.IoT Build 0:fa2de1b79154 7 #include <stdlib.h>
Azure.IoT Build 0:fa2de1b79154 8 #include "azure_c_shared_utility/gballoc.h"
Azure.IoT Build 0:fa2de1b79154 9 #include <stddef.h>
Azure.IoT Build 0:fa2de1b79154 10 #include <string.h>
AzureIoTClient 8:3db46d1e5471 11 #include <stdarg.h>
AzureIoTClient 8:3db46d1e5471 12 #include <stdio.h>
AzureIoTClient 8:3db46d1e5471 13
Azure.IoT Build 0:fa2de1b79154 14 //
Azure.IoT Build 0:fa2de1b79154 15 // PUT NO CLIENT LIBRARY INCLUDES BEFORE HERE
Azure.IoT Build 0:fa2de1b79154 16 //
Azure.IoT Build 0:fa2de1b79154 17
Azure.IoT Build 0:fa2de1b79154 18 #include "azure_c_shared_utility/strings.h"
AzureIoTClient 21:b92006c5b9ff 19 #include "azure_c_shared_utility/optimize_size.h"
Azure.IoT Build 6:c55b013dfc2a 20 #include "azure_c_shared_utility/xlogging.h"
Azure.IoT Build 0:fa2de1b79154 21
Azure.IoT Build 0:fa2de1b79154 22 static const char hexToASCII[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
Azure.IoT Build 0:fa2de1b79154 23
Azure.IoT Build 0:fa2de1b79154 24 typedef struct STRING_TAG
Azure.IoT Build 0:fa2de1b79154 25 {
Azure.IoT Build 0:fa2de1b79154 26 char* s;
AzureIoTClient 30:ce3813c5a692 27 } STRING;
Azure.IoT Build 0:fa2de1b79154 28
Azure.IoT Build 0:fa2de1b79154 29 /*this function will allocate a new string with just '\0' in it*/
Azure.IoT Build 0:fa2de1b79154 30 /*return NULL if it fails*/
Azure.IoT Build 0:fa2de1b79154 31 /* Codes_SRS_STRING_07_001: [STRING_new shall allocate a new STRING_HANDLE pointing to an empty string.] */
Azure.IoT Build 0:fa2de1b79154 32 STRING_HANDLE STRING_new(void)
Azure.IoT Build 0:fa2de1b79154 33 {
Azure.IoT Build 0:fa2de1b79154 34 STRING* result;
Azure.IoT Build 0:fa2de1b79154 35 if ((result = (STRING*)malloc(sizeof(STRING))) != NULL)
Azure.IoT Build 0:fa2de1b79154 36 {
Azure.IoT Build 0:fa2de1b79154 37 if ((result->s = (char*)malloc(1)) != NULL)
Azure.IoT Build 0:fa2de1b79154 38 {
Azure.IoT Build 0:fa2de1b79154 39 result->s[0] = '\0';
Azure.IoT Build 0:fa2de1b79154 40 }
Azure.IoT Build 0:fa2de1b79154 41 else
Azure.IoT Build 0:fa2de1b79154 42 {
Azure.IoT Build 0:fa2de1b79154 43 /* Codes_SRS_STRING_07_002: [STRING_new shall return an NULL STRING_HANDLE on any error that is encountered.] */
Azure.IoT Build 0:fa2de1b79154 44 free(result);
Azure.IoT Build 0:fa2de1b79154 45 result = NULL;
Azure.IoT Build 0:fa2de1b79154 46 }
Azure.IoT Build 0:fa2de1b79154 47 }
Azure.IoT Build 0:fa2de1b79154 48 return (STRING_HANDLE)result;
Azure.IoT Build 0:fa2de1b79154 49 }
Azure.IoT Build 0:fa2de1b79154 50
Azure.IoT Build 0:fa2de1b79154 51 /*Codes_SRS_STRING_02_001: [STRING_clone shall produce a new string having the same content as the handle string.*/
Azure.IoT Build 0:fa2de1b79154 52 STRING_HANDLE STRING_clone(STRING_HANDLE handle)
Azure.IoT Build 0:fa2de1b79154 53 {
Azure.IoT Build 0:fa2de1b79154 54 STRING* result;
Azure.IoT Build 0:fa2de1b79154 55 /*Codes_SRS_STRING_02_002: [If parameter handle is NULL then STRING_clone shall return NULL.]*/
Azure.IoT Build 0:fa2de1b79154 56 if (handle == NULL)
Azure.IoT Build 0:fa2de1b79154 57 {
Azure.IoT Build 0:fa2de1b79154 58 result = NULL;
Azure.IoT Build 0:fa2de1b79154 59 }
Azure.IoT Build 0:fa2de1b79154 60 else
Azure.IoT Build 0:fa2de1b79154 61 {
Azure.IoT Build 0:fa2de1b79154 62 /*Codes_SRS_STRING_02_003: [If STRING_clone fails for any reason, it shall return NULL.] */
Azure.IoT Build 0:fa2de1b79154 63 if ((result = (STRING*)malloc(sizeof(STRING))) != NULL)
Azure.IoT Build 0:fa2de1b79154 64 {
Azure.IoT Build 0:fa2de1b79154 65 STRING* source = (STRING*)handle;
Azure.IoT Build 0:fa2de1b79154 66 /*Codes_SRS_STRING_02_003: [If STRING_clone fails for any reason, it shall return NULL.] */
Azure.IoT Build 0:fa2de1b79154 67 size_t sourceLen = strlen(source->s);
Azure.IoT Build 0:fa2de1b79154 68 if ((result->s = (char*)malloc(sourceLen + 1)) == NULL)
Azure.IoT Build 0:fa2de1b79154 69 {
Azure.IoT Build 0:fa2de1b79154 70 free(result);
Azure.IoT Build 0:fa2de1b79154 71 result = NULL;
Azure.IoT Build 0:fa2de1b79154 72 }
Azure.IoT Build 0:fa2de1b79154 73 else
Azure.IoT Build 0:fa2de1b79154 74 {
AzureIoTClient 19:2e0811512ceb 75 (void)memcpy(result->s, source->s, sourceLen + 1);
Azure.IoT Build 0:fa2de1b79154 76 }
Azure.IoT Build 0:fa2de1b79154 77 }
Azure.IoT Build 0:fa2de1b79154 78 else
Azure.IoT Build 0:fa2de1b79154 79 {
Azure.IoT Build 0:fa2de1b79154 80 /*not much to do, result is NULL from malloc*/
Azure.IoT Build 0:fa2de1b79154 81 }
Azure.IoT Build 0:fa2de1b79154 82 }
Azure.IoT Build 0:fa2de1b79154 83 return (STRING_HANDLE)result;
Azure.IoT Build 0:fa2de1b79154 84 }
Azure.IoT Build 0:fa2de1b79154 85
Azure.IoT Build 0:fa2de1b79154 86 /* Codes_SRS_STRING_07_003: [STRING_construct shall allocate a new string with the value of the specified const char*.] */
Azure.IoT Build 0:fa2de1b79154 87 STRING_HANDLE STRING_construct(const char* psz)
Azure.IoT Build 0:fa2de1b79154 88 {
Azure.IoT Build 0:fa2de1b79154 89 STRING_HANDLE result;
Azure.IoT Build 0:fa2de1b79154 90 if (psz == NULL)
Azure.IoT Build 0:fa2de1b79154 91 {
Azure.IoT Build 0:fa2de1b79154 92 /* Codes_SRS_STRING_07_005: [If the supplied const char* is NULL STRING_construct shall return a NULL value.] */
Azure.IoT Build 0:fa2de1b79154 93 result = NULL;
Azure.IoT Build 0:fa2de1b79154 94 }
Azure.IoT Build 0:fa2de1b79154 95 else
Azure.IoT Build 0:fa2de1b79154 96 {
Azure.IoT Build 0:fa2de1b79154 97 STRING* str;
Azure.IoT Build 0:fa2de1b79154 98 if ((str = (STRING*)malloc(sizeof(STRING))) != NULL)
Azure.IoT Build 0:fa2de1b79154 99 {
Azure.IoT Build 0:fa2de1b79154 100 size_t nLen = strlen(psz) + 1;
Azure.IoT Build 0:fa2de1b79154 101 if ((str->s = (char*)malloc(nLen)) != NULL)
Azure.IoT Build 0:fa2de1b79154 102 {
AzureIoTClient 19:2e0811512ceb 103 (void)memcpy(str->s, psz, nLen);
Azure.IoT Build 0:fa2de1b79154 104 result = (STRING_HANDLE)str;
Azure.IoT Build 0:fa2de1b79154 105 }
Azure.IoT Build 0:fa2de1b79154 106 /* Codes_SRS_STRING_07_032: [STRING_construct encounters any error it shall return a NULL value.] */
Azure.IoT Build 0:fa2de1b79154 107 else
Azure.IoT Build 0:fa2de1b79154 108 {
Azure.IoT Build 0:fa2de1b79154 109 free(str);
Azure.IoT Build 0:fa2de1b79154 110 result = NULL;
Azure.IoT Build 0:fa2de1b79154 111 }
Azure.IoT Build 0:fa2de1b79154 112 }
Azure.IoT Build 0:fa2de1b79154 113 else
Azure.IoT Build 0:fa2de1b79154 114 {
Azure.IoT Build 0:fa2de1b79154 115 /* Codes_SRS_STRING_07_032: [STRING_construct encounters any error it shall return a NULL value.] */
Azure.IoT Build 0:fa2de1b79154 116 result = NULL;
Azure.IoT Build 0:fa2de1b79154 117 }
Azure.IoT Build 0:fa2de1b79154 118 }
Azure.IoT Build 0:fa2de1b79154 119 return result;
Azure.IoT Build 0:fa2de1b79154 120 }
Azure.IoT Build 0:fa2de1b79154 121
AzureIoTClient 25:8507bf644fdf 122 #if defined(__GNUC__)
AzureIoTClient 25:8507bf644fdf 123 __attribute__ ((format (printf, 1, 2)))
AzureIoTClient 25:8507bf644fdf 124 #endif
AzureIoTClient 8:3db46d1e5471 125 STRING_HANDLE STRING_construct_sprintf(const char* format, ...)
AzureIoTClient 8:3db46d1e5471 126 {
AzureIoTClient 8:3db46d1e5471 127 STRING* result;
Azure.IoT.Build 16:18e7ebd42bb2 128
Azure.IoT.Build 16:18e7ebd42bb2 129 #ifdef ARDUINO_ARCH_ESP8266
Azure.IoT.Build 16:18e7ebd42bb2 130 size_t maxBufSize = 512;
Azure.IoT.Build 16:18e7ebd42bb2 131 char buf[512];
Azure.IoT.Build 16:18e7ebd42bb2 132 #else
Azure.IoT.Build 16:18e7ebd42bb2 133 size_t maxBufSize = 0;
Azure.IoT.Build 16:18e7ebd42bb2 134 char* buf = NULL;
Azure.IoT.Build 16:18e7ebd42bb2 135 #endif
Azure.IoT.Build 16:18e7ebd42bb2 136
AzureIoTClient 8:3db46d1e5471 137 if (format != NULL)
AzureIoTClient 8:3db46d1e5471 138 {
AzureIoTClient 8:3db46d1e5471 139 va_list arg_list;
AzureIoTClient 30:ce3813c5a692 140 int length;
AzureIoTClient 8:3db46d1e5471 141 va_start(arg_list, format);
AzureIoTClient 8:3db46d1e5471 142
AzureIoTClient 8:3db46d1e5471 143 /* Codes_SRS_STRING_07_041: [STRING_construct_sprintf shall determine the size of the resulting string and allocate the necessary memory.] */
Azure.IoT.Build 16:18e7ebd42bb2 144 length = vsnprintf(buf, maxBufSize, format, arg_list);
AzureIoTClient 8:3db46d1e5471 145 va_end(arg_list);
AzureIoTClient 8:3db46d1e5471 146 if (length > 0)
AzureIoTClient 8:3db46d1e5471 147 {
AzureIoTClient 8:3db46d1e5471 148 result = (STRING*)malloc(sizeof(STRING));
AzureIoTClient 8:3db46d1e5471 149 if (result != NULL)
AzureIoTClient 8:3db46d1e5471 150 {
AzureIoTClient 8:3db46d1e5471 151 result->s = (char*)malloc(length+1);
AzureIoTClient 8:3db46d1e5471 152 if (result->s != NULL)
AzureIoTClient 8:3db46d1e5471 153 {
AzureIoTClient 8:3db46d1e5471 154 va_start(arg_list, format);
AzureIoTClient 8:3db46d1e5471 155 if (vsnprintf(result->s, length+1, format, arg_list) < 0)
AzureIoTClient 8:3db46d1e5471 156 {
AzureIoTClient 8:3db46d1e5471 157 /* Codes_SRS_STRING_07_040: [If any error is encountered STRING_construct_sprintf shall return NULL.] */
AzureIoTClient 8:3db46d1e5471 158 free(result->s);
AzureIoTClient 8:3db46d1e5471 159 free(result);
AzureIoTClient 8:3db46d1e5471 160 result = NULL;
AzureIoTClient 8:3db46d1e5471 161 LogError("Failure: vsnprintf formatting failed.");
AzureIoTClient 8:3db46d1e5471 162 }
AzureIoTClient 8:3db46d1e5471 163 va_end(arg_list);
AzureIoTClient 8:3db46d1e5471 164 }
AzureIoTClient 8:3db46d1e5471 165 else
AzureIoTClient 8:3db46d1e5471 166 {
AzureIoTClient 8:3db46d1e5471 167 /* Codes_SRS_STRING_07_040: [If any error is encountered STRING_construct_sprintf shall return NULL.] */
AzureIoTClient 8:3db46d1e5471 168 free(result);
AzureIoTClient 8:3db46d1e5471 169 result = NULL;
AzureIoTClient 8:3db46d1e5471 170 LogError("Failure: allocation failed.");
AzureIoTClient 8:3db46d1e5471 171 }
AzureIoTClient 8:3db46d1e5471 172 }
AzureIoTClient 8:3db46d1e5471 173 else
AzureIoTClient 8:3db46d1e5471 174 {
AzureIoTClient 8:3db46d1e5471 175 LogError("Failure: allocation failed.");
AzureIoTClient 8:3db46d1e5471 176 }
AzureIoTClient 8:3db46d1e5471 177 }
AzureIoTClient 8:3db46d1e5471 178 else if (length == 0)
AzureIoTClient 8:3db46d1e5471 179 {
AzureIoTClient 8:3db46d1e5471 180 result = (STRING*)STRING_new();
AzureIoTClient 8:3db46d1e5471 181 }
AzureIoTClient 8:3db46d1e5471 182 else
AzureIoTClient 8:3db46d1e5471 183 {
AzureIoTClient 8:3db46d1e5471 184 /* Codes_SRS_STRING_07_039: [If the parameter format is NULL then STRING_construct_sprintf shall return NULL.] */
AzureIoTClient 8:3db46d1e5471 185 result = NULL;
AzureIoTClient 8:3db46d1e5471 186 LogError("Failure: vsnprintf return 0 length");
AzureIoTClient 8:3db46d1e5471 187 }
AzureIoTClient 8:3db46d1e5471 188 }
AzureIoTClient 8:3db46d1e5471 189 else
AzureIoTClient 8:3db46d1e5471 190 {
AzureIoTClient 8:3db46d1e5471 191 LogError("Failure: invalid argument.");
AzureIoTClient 8:3db46d1e5471 192 result = NULL;
AzureIoTClient 8:3db46d1e5471 193 }
AzureIoTClient 8:3db46d1e5471 194 /* Codes_SRS_STRING_07_045: [STRING_construct_sprintf shall allocate a new string with the value of the specified printf formated const char. ] */
AzureIoTClient 8:3db46d1e5471 195 return (STRING_HANDLE)result;
AzureIoTClient 8:3db46d1e5471 196 }
AzureIoTClient 8:3db46d1e5471 197
Azure.IoT Build 0:fa2de1b79154 198 /*this function will return a new STRING with the memory for the actual string passed in as a parameter.*/
Azure.IoT Build 0:fa2de1b79154 199 /*return NULL if it fails.*/
Azure.IoT Build 0:fa2de1b79154 200 /* The supplied memory must have been allocated with malloc! */
Azure.IoT Build 0:fa2de1b79154 201 /* Codes_SRS_STRING_07_006: [STRING_new_with_memory shall return a STRING_HANDLE by using the supplied char* memory.] */
Azure.IoT Build 0:fa2de1b79154 202 STRING_HANDLE STRING_new_with_memory(const char* memory)
Azure.IoT Build 0:fa2de1b79154 203 {
Azure.IoT Build 0:fa2de1b79154 204 STRING* result;
Azure.IoT Build 0:fa2de1b79154 205 if (memory == NULL)
Azure.IoT Build 0:fa2de1b79154 206 {
Azure.IoT Build 0:fa2de1b79154 207 /* Codes_SRS_STRING_07_007: [STRING_new_with_memory shall return a NULL STRING_HANDLE if the supplied char* is NULL.] */
Azure.IoT Build 0:fa2de1b79154 208 result = NULL;
Azure.IoT Build 0:fa2de1b79154 209 }
Azure.IoT Build 0:fa2de1b79154 210 else
Azure.IoT Build 0:fa2de1b79154 211 {
Azure.IoT Build 0:fa2de1b79154 212 if ((result = (STRING*)malloc(sizeof(STRING))) != NULL)
Azure.IoT Build 0:fa2de1b79154 213 {
Azure.IoT Build 0:fa2de1b79154 214 result->s = (char*)memory;
Azure.IoT Build 0:fa2de1b79154 215 }
Azure.IoT Build 0:fa2de1b79154 216 }
Azure.IoT Build 0:fa2de1b79154 217 return (STRING_HANDLE)result;
Azure.IoT Build 0:fa2de1b79154 218 }
Azure.IoT Build 0:fa2de1b79154 219
Azure.IoT Build 0:fa2de1b79154 220 /* Codes_SRS_STRING_07_008: [STRING_new_quoted shall return a valid STRING_HANDLE Copying the supplied const char* value surrounded by quotes.] */
Azure.IoT Build 0:fa2de1b79154 221 STRING_HANDLE STRING_new_quoted(const char* source)
Azure.IoT Build 0:fa2de1b79154 222 {
Azure.IoT Build 0:fa2de1b79154 223 STRING* result;
Azure.IoT Build 0:fa2de1b79154 224 if (source == NULL)
Azure.IoT Build 0:fa2de1b79154 225 {
Azure.IoT Build 0:fa2de1b79154 226 /* Codes_SRS_STRING_07_009: [STRING_new_quoted shall return a NULL STRING_HANDLE if the supplied const char* is NULL.] */
Azure.IoT Build 0:fa2de1b79154 227 result = NULL;
Azure.IoT Build 0:fa2de1b79154 228 }
Azure.IoT Build 0:fa2de1b79154 229 else if ((result = (STRING*)malloc(sizeof(STRING))) != NULL)
Azure.IoT Build 0:fa2de1b79154 230 {
Azure.IoT Build 0:fa2de1b79154 231 size_t sourceLength = strlen(source);
Azure.IoT Build 0:fa2de1b79154 232 if ((result->s = (char*)malloc(sourceLength + 3)) != NULL)
Azure.IoT Build 0:fa2de1b79154 233 {
Azure.IoT Build 0:fa2de1b79154 234 result->s[0] = '"';
AzureIoTClient 19:2e0811512ceb 235 (void)memcpy(result->s + 1, source, sourceLength);
Azure.IoT Build 0:fa2de1b79154 236 result->s[sourceLength + 1] = '"';
Azure.IoT Build 0:fa2de1b79154 237 result->s[sourceLength + 2] = '\0';
Azure.IoT Build 0:fa2de1b79154 238 }
Azure.IoT Build 0:fa2de1b79154 239 else
Azure.IoT Build 0:fa2de1b79154 240 {
Azure.IoT Build 0:fa2de1b79154 241 /* Codes_SRS_STRING_07_031: [STRING_new_quoted shall return a NULL STRING_HANDLE if any error is encountered.] */
Azure.IoT Build 0:fa2de1b79154 242 free(result);
Azure.IoT Build 0:fa2de1b79154 243 result = NULL;
Azure.IoT Build 0:fa2de1b79154 244 }
Azure.IoT Build 0:fa2de1b79154 245 }
Azure.IoT Build 0:fa2de1b79154 246 return (STRING_HANDLE)result;
Azure.IoT Build 0:fa2de1b79154 247 }
Azure.IoT Build 0:fa2de1b79154 248
Azure.IoT Build 0:fa2de1b79154 249 /*this function takes a regular const char* and turns in into "this is a\"JSON\" strings\u0008" (starting and ending quote included)*/
Azure.IoT Build 0:fa2de1b79154 250 /*the newly created handle needs to be disposed of with STRING_delete*/
Azure.IoT Build 0:fa2de1b79154 251 /*returns NULL if there are errors*/
Azure.IoT Build 0:fa2de1b79154 252 STRING_HANDLE STRING_new_JSON(const char* source)
Azure.IoT Build 0:fa2de1b79154 253 {
Azure.IoT Build 0:fa2de1b79154 254 STRING* result;
Azure.IoT Build 0:fa2de1b79154 255 if (source == NULL)
Azure.IoT Build 0:fa2de1b79154 256 {
Azure.IoT Build 0:fa2de1b79154 257 /*Codes_SRS_STRING_02_011: [If source is NULL then STRING_new_JSON shall return NULL.] */
Azure.IoT Build 0:fa2de1b79154 258 result = NULL;
AzureIoTClient 1:9190c0f4d23a 259 LogError("invalid arg (NULL)");
Azure.IoT Build 0:fa2de1b79154 260 }
Azure.IoT Build 0:fa2de1b79154 261 else
Azure.IoT Build 0:fa2de1b79154 262 {
Azure.IoT Build 0:fa2de1b79154 263 size_t i;
Azure.IoT Build 0:fa2de1b79154 264 size_t nControlCharacters = 0; /*counts how many characters are to be expanded from 1 character to \uxxxx (6 characters)*/
Azure.IoT Build 0:fa2de1b79154 265 size_t nEscapeCharacters = 0;
Azure.IoT Build 0:fa2de1b79154 266 size_t vlen = strlen(source);
Azure.IoT Build 0:fa2de1b79154 267
Azure.IoT Build 0:fa2de1b79154 268 for (i = 0; i < vlen; i++)
Azure.IoT Build 0:fa2de1b79154 269 {
Azure.IoT Build 0:fa2de1b79154 270 /*Codes_SRS_STRING_02_014: [If any character has the value outside [1...127] then STRING_new_JSON shall fail and return NULL.] */
Azure.IoT Build 0:fa2de1b79154 271 if ((unsigned char)source[i] >= 128) /*this be a UNICODE character begin*/
Azure.IoT Build 0:fa2de1b79154 272 {
Azure.IoT Build 0:fa2de1b79154 273 break;
Azure.IoT Build 0:fa2de1b79154 274 }
Azure.IoT Build 0:fa2de1b79154 275 else
Azure.IoT Build 0:fa2de1b79154 276 {
Azure.IoT Build 0:fa2de1b79154 277 if (source[i] <= 0x1F)
Azure.IoT Build 0:fa2de1b79154 278 {
Azure.IoT Build 0:fa2de1b79154 279 nControlCharacters++;
Azure.IoT Build 0:fa2de1b79154 280 }
Azure.IoT Build 0:fa2de1b79154 281 else if (
Azure.IoT Build 0:fa2de1b79154 282 (source[i] == '"') ||
Azure.IoT Build 0:fa2de1b79154 283 (source[i] == '\\') ||
Azure.IoT Build 0:fa2de1b79154 284 (source[i] == '/')
Azure.IoT Build 0:fa2de1b79154 285 )
Azure.IoT Build 0:fa2de1b79154 286 {
Azure.IoT Build 0:fa2de1b79154 287 nEscapeCharacters++;
Azure.IoT Build 0:fa2de1b79154 288 }
Azure.IoT Build 0:fa2de1b79154 289 }
Azure.IoT Build 0:fa2de1b79154 290 }
Azure.IoT Build 0:fa2de1b79154 291
Azure.IoT Build 0:fa2de1b79154 292 if (i < vlen)
Azure.IoT Build 0:fa2de1b79154 293 {
Azure.IoT Build 0:fa2de1b79154 294 result = NULL;
AzureIoTClient 1:9190c0f4d23a 295 LogError("invalid character in input string");
Azure.IoT Build 0:fa2de1b79154 296 }
Azure.IoT Build 0:fa2de1b79154 297 else
Azure.IoT Build 0:fa2de1b79154 298 {
Azure.IoT Build 0:fa2de1b79154 299 if ((result = (STRING*)malloc(sizeof(STRING))) == NULL)
Azure.IoT Build 0:fa2de1b79154 300 {
Azure.IoT Build 0:fa2de1b79154 301 /*Codes_SRS_STRING_02_021: [If the complete JSON representation cannot be produced, then STRING_new_JSON shall fail and return NULL.] */
AzureIoTClient 1:9190c0f4d23a 302 LogError("malloc failure");
Azure.IoT Build 0:fa2de1b79154 303 }
Azure.IoT Build 0:fa2de1b79154 304 else if ((result->s = (char*)malloc(vlen + 5 * nControlCharacters + nEscapeCharacters + 3)) == NULL)
Azure.IoT Build 0:fa2de1b79154 305 {
Azure.IoT Build 0:fa2de1b79154 306 /*Codes_SRS_STRING_02_021: [If the complete JSON representation cannot be produced, then STRING_new_JSON shall fail and return NULL.] */
Azure.IoT Build 0:fa2de1b79154 307 free(result);
Azure.IoT Build 0:fa2de1b79154 308 result = NULL;
AzureIoTClient 1:9190c0f4d23a 309 LogError("malloc failed");
Azure.IoT Build 0:fa2de1b79154 310 }
Azure.IoT Build 0:fa2de1b79154 311 else
Azure.IoT Build 0:fa2de1b79154 312 {
Azure.IoT Build 0:fa2de1b79154 313 size_t pos = 0;
Azure.IoT Build 0:fa2de1b79154 314 /*Codes_SRS_STRING_02_012: [The string shall begin with the quote character.] */
Azure.IoT Build 0:fa2de1b79154 315 result->s[pos++] = '"';
Azure.IoT Build 0:fa2de1b79154 316 for (i = 0; i < vlen; i++)
Azure.IoT Build 0:fa2de1b79154 317 {
Azure.IoT Build 0:fa2de1b79154 318 if (source[i] <= 0x1F)
Azure.IoT Build 0:fa2de1b79154 319 {
Azure.IoT Build 0:fa2de1b79154 320 /*Codes_SRS_STRING_02_019: [If the character code is less than 0x20 then it shall be represented as \u00xx, where xx is the hex representation of the character code.]*/
Azure.IoT Build 0:fa2de1b79154 321 result->s[pos++] = '\\';
Azure.IoT Build 0:fa2de1b79154 322 result->s[pos++] = 'u';
Azure.IoT Build 0:fa2de1b79154 323 result->s[pos++] = '0';
Azure.IoT Build 0:fa2de1b79154 324 result->s[pos++] = '0';
Azure.IoT Build 0:fa2de1b79154 325 result->s[pos++] = hexToASCII[(source[i] & 0xF0) >> 4]; /*high nibble*/
Azure.IoT Build 0:fa2de1b79154 326 result->s[pos++] = hexToASCII[source[i] & 0x0F]; /*low nibble*/
Azure.IoT Build 0:fa2de1b79154 327 }
Azure.IoT Build 0:fa2de1b79154 328 else if (source[i] == '"')
Azure.IoT Build 0:fa2de1b79154 329 {
Azure.IoT Build 0:fa2de1b79154 330 /*Codes_SRS_STRING_02_016: [If the character is " (quote) then it shall be repsented as \".] */
Azure.IoT Build 0:fa2de1b79154 331 result->s[pos++] = '\\';
Azure.IoT Build 0:fa2de1b79154 332 result->s[pos++] = '"';
Azure.IoT Build 0:fa2de1b79154 333 }
Azure.IoT Build 0:fa2de1b79154 334 else if (source[i] == '\\')
Azure.IoT Build 0:fa2de1b79154 335 {
Azure.IoT Build 0:fa2de1b79154 336 /*Codes_SRS_STRING_02_017: [If the character is \ (backslash) then it shall represented as \\.] */
Azure.IoT Build 0:fa2de1b79154 337 result->s[pos++] = '\\';
Azure.IoT Build 0:fa2de1b79154 338 result->s[pos++] = '\\';
Azure.IoT Build 0:fa2de1b79154 339 }
Azure.IoT Build 0:fa2de1b79154 340 else if (source[i] == '/')
Azure.IoT Build 0:fa2de1b79154 341 {
Azure.IoT Build 0:fa2de1b79154 342 /*Codes_SRS_STRING_02_018: [If the character is / (slash) then it shall be represented as \/.] */
Azure.IoT Build 0:fa2de1b79154 343 result->s[pos++] = '\\';
Azure.IoT Build 0:fa2de1b79154 344 result->s[pos++] = '/';
Azure.IoT Build 0:fa2de1b79154 345 }
Azure.IoT Build 0:fa2de1b79154 346 else
Azure.IoT Build 0:fa2de1b79154 347 {
Azure.IoT Build 0:fa2de1b79154 348 /*Codes_SRS_STRING_02_013: [The string shall copy the characters of source "as they are" (until the '\0' character) with the following exceptions:] */
Azure.IoT Build 0:fa2de1b79154 349 result->s[pos++] = source[i];
Azure.IoT Build 0:fa2de1b79154 350 }
Azure.IoT Build 0:fa2de1b79154 351 }
Azure.IoT Build 0:fa2de1b79154 352 /*Codes_SRS_STRING_02_020: [The string shall end with " (quote).] */
Azure.IoT Build 0:fa2de1b79154 353 result->s[pos++] = '"';
Azure.IoT Build 0:fa2de1b79154 354 /*zero terminating it*/
Azure.IoT Build 0:fa2de1b79154 355 result->s[pos] = '\0';
Azure.IoT Build 0:fa2de1b79154 356 }
Azure.IoT Build 0:fa2de1b79154 357 }
Azure.IoT Build 0:fa2de1b79154 358
Azure.IoT Build 0:fa2de1b79154 359 }
Azure.IoT Build 0:fa2de1b79154 360 return (STRING_HANDLE)result;
Azure.IoT Build 0:fa2de1b79154 361 }
Azure.IoT Build 0:fa2de1b79154 362
Azure.IoT Build 0:fa2de1b79154 363 /*this function will concatenate to the string s1 the string s2, resulting in s1+s2*/
Azure.IoT Build 0:fa2de1b79154 364 /*returns 0 if success*/
Azure.IoT Build 0:fa2de1b79154 365 /*any other error code is failure*/
Azure.IoT Build 0:fa2de1b79154 366 /* Codes_SRS_STRING_07_012: [STRING_concat shall concatenate the given STRING_HANDLE and the const char* value and place the value in the handle.] */
Azure.IoT Build 0:fa2de1b79154 367 int STRING_concat(STRING_HANDLE handle, const char* s2)
Azure.IoT Build 0:fa2de1b79154 368 {
Azure.IoT Build 0:fa2de1b79154 369 int result;
Azure.IoT Build 0:fa2de1b79154 370 if ((handle == NULL) || (s2 == NULL))
Azure.IoT Build 0:fa2de1b79154 371 {
Azure.IoT Build 0:fa2de1b79154 372 /* Codes_SRS_STRING_07_013: [STRING_concat shall return a nonzero number if an error is encountered.] */
AzureIoTClient 21:b92006c5b9ff 373 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 374 }
Azure.IoT Build 0:fa2de1b79154 375 else
Azure.IoT Build 0:fa2de1b79154 376 {
Azure.IoT Build 0:fa2de1b79154 377 STRING* s1 = (STRING*)handle;
Azure.IoT Build 0:fa2de1b79154 378 size_t s1Length = strlen(s1->s);
Azure.IoT Build 0:fa2de1b79154 379 size_t s2Length = strlen(s2);
Azure.IoT Build 0:fa2de1b79154 380 char* temp = (char*)realloc(s1->s, s1Length + s2Length + 1);
Azure.IoT Build 0:fa2de1b79154 381 if (temp == NULL)
Azure.IoT Build 0:fa2de1b79154 382 {
Azure.IoT Build 0:fa2de1b79154 383 /* Codes_SRS_STRING_07_013: [STRING_concat shall return a nonzero number if an error is encountered.] */
AzureIoTClient 21:b92006c5b9ff 384 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 385 }
Azure.IoT Build 0:fa2de1b79154 386 else
Azure.IoT Build 0:fa2de1b79154 387 {
Azure.IoT Build 0:fa2de1b79154 388 s1->s = temp;
AzureIoTClient 19:2e0811512ceb 389 (void)memcpy(s1->s + s1Length, s2, s2Length + 1);
Azure.IoT Build 0:fa2de1b79154 390 result = 0;
Azure.IoT Build 0:fa2de1b79154 391 }
Azure.IoT Build 0:fa2de1b79154 392 }
Azure.IoT Build 0:fa2de1b79154 393 return result;
Azure.IoT Build 0:fa2de1b79154 394 }
Azure.IoT Build 0:fa2de1b79154 395
Azure.IoT Build 0:fa2de1b79154 396 /*this function will concatenate to the string s1 the string s2, resulting in s1+s2*/
Azure.IoT Build 0:fa2de1b79154 397 /*returns 0 if success*/
Azure.IoT Build 0:fa2de1b79154 398 /*any other error code is failure*/
Azure.IoT Build 0:fa2de1b79154 399 /* Codes_SRS_STRING_07_034: [String_Concat_with_STRING shall concatenate a given STRING_HANDLE variable with a source STRING_HANDLE.] */
Azure.IoT Build 0:fa2de1b79154 400 int STRING_concat_with_STRING(STRING_HANDLE s1, STRING_HANDLE s2)
Azure.IoT Build 0:fa2de1b79154 401 {
Azure.IoT Build 0:fa2de1b79154 402 int result;
Azure.IoT Build 0:fa2de1b79154 403 if ((s1 == NULL) || (s2 == NULL))
Azure.IoT Build 0:fa2de1b79154 404 {
Azure.IoT Build 0:fa2de1b79154 405 /* Codes_SRS_STRING_07_035: [String_Concat_with_STRING shall return a nonzero number if an error is encountered.] */
AzureIoTClient 21:b92006c5b9ff 406 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 407 }
Azure.IoT Build 0:fa2de1b79154 408 else
Azure.IoT Build 0:fa2de1b79154 409 {
Azure.IoT Build 0:fa2de1b79154 410 STRING* dest = (STRING*)s1;
Azure.IoT Build 0:fa2de1b79154 411 STRING* src = (STRING*)s2;
Azure.IoT Build 0:fa2de1b79154 412
Azure.IoT Build 0:fa2de1b79154 413 size_t s1Length = strlen(dest->s);
Azure.IoT Build 0:fa2de1b79154 414 size_t s2Length = strlen(src->s);
Azure.IoT Build 0:fa2de1b79154 415 char* temp = (char*)realloc(dest->s, s1Length + s2Length + 1);
Azure.IoT Build 0:fa2de1b79154 416 if (temp == NULL)
Azure.IoT Build 0:fa2de1b79154 417 {
Azure.IoT Build 0:fa2de1b79154 418 /* Codes_SRS_STRING_07_035: [String_Concat_with_STRING shall return a nonzero number if an error is encountered.] */
AzureIoTClient 21:b92006c5b9ff 419 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 420 }
Azure.IoT Build 0:fa2de1b79154 421 else
Azure.IoT Build 0:fa2de1b79154 422 {
Azure.IoT Build 0:fa2de1b79154 423 dest->s = temp;
Azure.IoT Build 0:fa2de1b79154 424 /* Codes_SRS_STRING_07_034: [String_Concat_with_STRING shall concatenate a given STRING_HANDLE variable with a source STRING_HANDLE.] */
AzureIoTClient 19:2e0811512ceb 425 (void)memcpy(dest->s + s1Length, src->s, s2Length + 1);
Azure.IoT Build 0:fa2de1b79154 426 result = 0;
Azure.IoT Build 0:fa2de1b79154 427 }
Azure.IoT Build 0:fa2de1b79154 428 }
Azure.IoT Build 0:fa2de1b79154 429 return result;
Azure.IoT Build 0:fa2de1b79154 430 }
Azure.IoT Build 0:fa2de1b79154 431
Azure.IoT Build 0:fa2de1b79154 432 /*this function will copy the string from s2 to s1*/
Azure.IoT Build 0:fa2de1b79154 433 /*returns 0 if success*/
Azure.IoT Build 0:fa2de1b79154 434 /*any other error code is failure*/
Azure.IoT Build 0:fa2de1b79154 435 /* Codes_SRS_STRING_07_016: [STRING_copy shall copy the const char* into the supplied STRING_HANDLE.] */
Azure.IoT Build 0:fa2de1b79154 436 int STRING_copy(STRING_HANDLE handle, const char* s2)
Azure.IoT Build 0:fa2de1b79154 437 {
Azure.IoT Build 0:fa2de1b79154 438 int result;
Azure.IoT Build 0:fa2de1b79154 439 if ((handle == NULL) || (s2 == NULL))
Azure.IoT Build 0:fa2de1b79154 440 {
Azure.IoT Build 0:fa2de1b79154 441 /* Codes_SRS_STRING_07_017: [STRING_copy shall return a nonzero value if any of the supplied parameters are NULL.] */
AzureIoTClient 21:b92006c5b9ff 442 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 443 }
Azure.IoT Build 0:fa2de1b79154 444 else
Azure.IoT Build 0:fa2de1b79154 445 {
Azure.IoT Build 0:fa2de1b79154 446 STRING* s1 = (STRING*)handle;
Azure.IoT Build 0:fa2de1b79154 447 /* Codes_SRS_STRING_07_026: [If the underlying char* refered to by s1 handle is equal to char* s2 than STRING_copy shall be a noop and return 0.] */
Azure.IoT Build 0:fa2de1b79154 448 if (s1->s != s2)
Azure.IoT Build 0:fa2de1b79154 449 {
Azure.IoT Build 0:fa2de1b79154 450 size_t s2Length = strlen(s2);
Azure.IoT Build 0:fa2de1b79154 451 char* temp = (char*)realloc(s1->s, s2Length + 1);
Azure.IoT Build 0:fa2de1b79154 452 if (temp == NULL)
Azure.IoT Build 0:fa2de1b79154 453 {
Azure.IoT Build 0:fa2de1b79154 454 /* Codes_SRS_STRING_07_027: [STRING_copy shall return a nonzero value if any error is encountered.] */
AzureIoTClient 21:b92006c5b9ff 455 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 456 }
Azure.IoT Build 0:fa2de1b79154 457 else
Azure.IoT Build 0:fa2de1b79154 458 {
Azure.IoT Build 0:fa2de1b79154 459 s1->s = temp;
Azure.IoT Build 0:fa2de1b79154 460 memmove(s1->s, s2, s2Length + 1);
Azure.IoT Build 0:fa2de1b79154 461 result = 0;
Azure.IoT Build 0:fa2de1b79154 462 }
Azure.IoT Build 0:fa2de1b79154 463 }
Azure.IoT Build 0:fa2de1b79154 464 else
Azure.IoT Build 0:fa2de1b79154 465 {
Azure.IoT Build 0:fa2de1b79154 466 /* Codes_SRS_STRING_07_033: [If overlapping pointer address is given to STRING_copy the behavior is undefined.] */
Azure.IoT Build 0:fa2de1b79154 467 result = 0;
Azure.IoT Build 0:fa2de1b79154 468 }
Azure.IoT Build 0:fa2de1b79154 469 }
Azure.IoT Build 0:fa2de1b79154 470 return result;
Azure.IoT Build 0:fa2de1b79154 471 }
Azure.IoT Build 0:fa2de1b79154 472
Azure.IoT Build 0:fa2de1b79154 473 /*this function will copy n chars from s2 to the string s1, resulting in n chars only from s2 being stored in s1.*/
Azure.IoT Build 0:fa2de1b79154 474 /*returns 0 if success*/
Azure.IoT Build 0:fa2de1b79154 475 /*any other error code is failure*/
Azure.IoT Build 0:fa2de1b79154 476 /* Codes_SRS_STRING_07_018: [STRING_copy_n shall copy the number of characters in const char* or the size_t whichever is lesser.] */
Azure.IoT Build 0:fa2de1b79154 477 int STRING_copy_n(STRING_HANDLE handle, const char* s2, size_t n)
Azure.IoT Build 0:fa2de1b79154 478 {
Azure.IoT Build 0:fa2de1b79154 479 int result;
Azure.IoT Build 0:fa2de1b79154 480 if ((handle == NULL) || (s2 == NULL))
Azure.IoT Build 0:fa2de1b79154 481 {
Azure.IoT Build 0:fa2de1b79154 482 /* Codes_SRS_STRING_07_019: [STRING_copy_n shall return a nonzero value if STRING_HANDLE or const char* is NULL.] */
AzureIoTClient 21:b92006c5b9ff 483 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 484 }
Azure.IoT Build 0:fa2de1b79154 485 else
Azure.IoT Build 0:fa2de1b79154 486 {
Azure.IoT Build 0:fa2de1b79154 487 STRING* s1 = (STRING*)handle;
Azure.IoT Build 0:fa2de1b79154 488 size_t s2Length = strlen(s2);
Azure.IoT Build 0:fa2de1b79154 489 char* temp;
Azure.IoT Build 0:fa2de1b79154 490 if (s2Length > n)
Azure.IoT Build 0:fa2de1b79154 491 {
Azure.IoT Build 0:fa2de1b79154 492 s2Length = n;
Azure.IoT Build 0:fa2de1b79154 493 }
Azure.IoT Build 0:fa2de1b79154 494
Azure.IoT Build 0:fa2de1b79154 495 temp = (char*)realloc(s1->s, s2Length + 1);
Azure.IoT Build 0:fa2de1b79154 496 if (temp == NULL)
Azure.IoT Build 0:fa2de1b79154 497 {
Azure.IoT Build 0:fa2de1b79154 498 /* Codes_SRS_STRING_07_028: [STRING_copy_n shall return a nonzero value if any error is encountered.] */
AzureIoTClient 21:b92006c5b9ff 499 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 500 }
Azure.IoT Build 0:fa2de1b79154 501 else
Azure.IoT Build 0:fa2de1b79154 502 {
Azure.IoT Build 0:fa2de1b79154 503 s1->s = temp;
AzureIoTClient 19:2e0811512ceb 504 (void)memcpy(s1->s, s2, s2Length);
Azure.IoT Build 0:fa2de1b79154 505 s1->s[s2Length] = 0;
Azure.IoT Build 0:fa2de1b79154 506 result = 0;
Azure.IoT Build 0:fa2de1b79154 507 }
Azure.IoT Build 0:fa2de1b79154 508
Azure.IoT Build 0:fa2de1b79154 509 }
Azure.IoT Build 0:fa2de1b79154 510 return result;
Azure.IoT Build 0:fa2de1b79154 511 }
Azure.IoT Build 0:fa2de1b79154 512
AzureIoTClient 25:8507bf644fdf 513 #if defined(__GNUC__)
AzureIoTClient 25:8507bf644fdf 514 __attribute__ ((format (printf, 2, 3)))
AzureIoTClient 25:8507bf644fdf 515 #endif
AzureIoTClient 8:3db46d1e5471 516 int STRING_sprintf(STRING_HANDLE handle, const char* format, ...)
AzureIoTClient 8:3db46d1e5471 517 {
AzureIoTClient 8:3db46d1e5471 518 int result;
Azure.IoT.Build 16:18e7ebd42bb2 519
Azure.IoT.Build 16:18e7ebd42bb2 520 #ifdef ARDUINO_ARCH_ESP8266
Azure.IoT.Build 16:18e7ebd42bb2 521 size_t maxBufSize = 512;
Azure.IoT.Build 16:18e7ebd42bb2 522 char buf[512];
Azure.IoT.Build 16:18e7ebd42bb2 523 #else
Azure.IoT.Build 16:18e7ebd42bb2 524 size_t maxBufSize = 0;
Azure.IoT.Build 16:18e7ebd42bb2 525 char* buf = NULL;
Azure.IoT.Build 16:18e7ebd42bb2 526 #endif
Azure.IoT.Build 16:18e7ebd42bb2 527
AzureIoTClient 8:3db46d1e5471 528 if (handle == NULL || format == NULL)
AzureIoTClient 8:3db46d1e5471 529 {
AzureIoTClient 8:3db46d1e5471 530 /* Codes_SRS_STRING_07_042: [if the parameters s1 or format are NULL then STRING_sprintf shall return non zero value.] */
AzureIoTClient 8:3db46d1e5471 531 LogError("Invalid arg (NULL)");
AzureIoTClient 21:b92006c5b9ff 532 result = __FAILURE__;
AzureIoTClient 8:3db46d1e5471 533 }
AzureIoTClient 8:3db46d1e5471 534 else
AzureIoTClient 8:3db46d1e5471 535 {
AzureIoTClient 8:3db46d1e5471 536 va_list arg_list;
AzureIoTClient 30:ce3813c5a692 537 int s2Length;
AzureIoTClient 8:3db46d1e5471 538 va_start(arg_list, format);
AzureIoTClient 8:3db46d1e5471 539
Azure.IoT.Build 16:18e7ebd42bb2 540 s2Length = vsnprintf(buf, maxBufSize, format, arg_list);
AzureIoTClient 8:3db46d1e5471 541 va_end(arg_list);
AzureIoTClient 8:3db46d1e5471 542 if (s2Length < 0)
AzureIoTClient 8:3db46d1e5471 543 {
AzureIoTClient 8:3db46d1e5471 544 /* Codes_SRS_STRING_07_043: [If any error is encountered STRING_sprintf shall return a non zero value.] */
AzureIoTClient 8:3db46d1e5471 545 LogError("Failure vsnprintf return < 0");
AzureIoTClient 21:b92006c5b9ff 546 result = __FAILURE__;
AzureIoTClient 8:3db46d1e5471 547 }
AzureIoTClient 8:3db46d1e5471 548 else if (s2Length == 0)
AzureIoTClient 8:3db46d1e5471 549 {
AzureIoTClient 8:3db46d1e5471 550 // Don't need to reallocate and nothing should be added
AzureIoTClient 8:3db46d1e5471 551 result = 0;
AzureIoTClient 8:3db46d1e5471 552 }
AzureIoTClient 8:3db46d1e5471 553 else
AzureIoTClient 8:3db46d1e5471 554 {
AzureIoTClient 8:3db46d1e5471 555 STRING* s1 = (STRING*)handle;
AzureIoTClient 30:ce3813c5a692 556 char* temp;
AzureIoTClient 8:3db46d1e5471 557 size_t s1Length = strlen(s1->s);
AzureIoTClient 9:079c39803432 558 temp = (char*)realloc(s1->s, s1Length + s2Length + 1);
AzureIoTClient 8:3db46d1e5471 559 if (temp != NULL)
AzureIoTClient 8:3db46d1e5471 560 {
AzureIoTClient 8:3db46d1e5471 561 s1->s = temp;
AzureIoTClient 8:3db46d1e5471 562 va_start(arg_list, format);
AzureIoTClient 8:3db46d1e5471 563 if (vsnprintf(s1->s + s1Length, s1Length + s2Length + 1, format, arg_list) < 0)
AzureIoTClient 8:3db46d1e5471 564 {
AzureIoTClient 8:3db46d1e5471 565 /* Codes_SRS_STRING_07_043: [If any error is encountered STRING_sprintf shall return a non zero value.] */
AzureIoTClient 8:3db46d1e5471 566 LogError("Failure vsnprintf formatting error");
AzureIoTClient 8:3db46d1e5471 567 s1->s[s1Length] = '\0';
AzureIoTClient 21:b92006c5b9ff 568 result = __FAILURE__;
AzureIoTClient 8:3db46d1e5471 569 }
AzureIoTClient 8:3db46d1e5471 570 else
AzureIoTClient 8:3db46d1e5471 571 {
AzureIoTClient 8:3db46d1e5471 572 /* Codes_SRS_STRING_07_044: [On success STRING_sprintf shall return 0.]*/
AzureIoTClient 8:3db46d1e5471 573 result = 0;
AzureIoTClient 8:3db46d1e5471 574 }
AzureIoTClient 8:3db46d1e5471 575 va_end(arg_list);
AzureIoTClient 8:3db46d1e5471 576 }
AzureIoTClient 8:3db46d1e5471 577 else
AzureIoTClient 8:3db46d1e5471 578 {
AzureIoTClient 8:3db46d1e5471 579 /* Codes_SRS_STRING_07_043: [If any error is encountered STRING_sprintf shall return a non zero value.] */
AzureIoTClient 8:3db46d1e5471 580 LogError("Failure unable to reallocate memory");
AzureIoTClient 21:b92006c5b9ff 581 result = __FAILURE__;
AzureIoTClient 8:3db46d1e5471 582 }
AzureIoTClient 8:3db46d1e5471 583 }
AzureIoTClient 8:3db46d1e5471 584 }
AzureIoTClient 8:3db46d1e5471 585 return result;
AzureIoTClient 8:3db46d1e5471 586 }
AzureIoTClient 8:3db46d1e5471 587
Azure.IoT Build 0:fa2de1b79154 588 /*this function will quote the string passed as argument string =>"string"*/
Azure.IoT Build 0:fa2de1b79154 589 /*returns 0 if success*/ /*doesn't change the string otherwise*/
Azure.IoT Build 0:fa2de1b79154 590 /*any other error code is failure*/
Azure.IoT Build 0:fa2de1b79154 591 /* Codes_SRS_STRING_07_014: [STRING_quote shall "quote" the supplied STRING_HANDLE and return 0 on success.] */
Azure.IoT Build 0:fa2de1b79154 592 int STRING_quote(STRING_HANDLE handle)
Azure.IoT Build 0:fa2de1b79154 593 {
Azure.IoT Build 0:fa2de1b79154 594 int result;
Azure.IoT Build 0:fa2de1b79154 595 if (handle == NULL)
Azure.IoT Build 0:fa2de1b79154 596 {
Azure.IoT Build 0:fa2de1b79154 597 /* Codes_SRS_STRING_07_015: [STRING_quote shall return a nonzero value if any of the supplied parameters are NULL.] */
AzureIoTClient 21:b92006c5b9ff 598 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 599 }
Azure.IoT Build 0:fa2de1b79154 600 else
Azure.IoT Build 0:fa2de1b79154 601 {
Azure.IoT Build 0:fa2de1b79154 602 STRING* s1 = (STRING*)handle;
Azure.IoT Build 0:fa2de1b79154 603 size_t s1Length = strlen(s1->s);
Azure.IoT Build 0:fa2de1b79154 604 char* temp = (char*)realloc(s1->s, s1Length + 2 + 1);/*2 because 2 quotes, 1 because '\0'*/
Azure.IoT Build 0:fa2de1b79154 605 if (temp == NULL)
Azure.IoT Build 0:fa2de1b79154 606 {
Azure.IoT Build 0:fa2de1b79154 607 /* Codes_SRS_STRING_07_029: [STRING_quote shall return a nonzero value if any error is encountered.] */
AzureIoTClient 21:b92006c5b9ff 608 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 609 }
Azure.IoT Build 0:fa2de1b79154 610 else
Azure.IoT Build 0:fa2de1b79154 611 {
Azure.IoT Build 0:fa2de1b79154 612 s1->s = temp;
Azure.IoT Build 0:fa2de1b79154 613 memmove(s1->s + 1, s1->s, s1Length);
Azure.IoT Build 0:fa2de1b79154 614 s1->s[0] = '"';
Azure.IoT Build 0:fa2de1b79154 615 s1->s[s1Length + 1] = '"';
Azure.IoT Build 0:fa2de1b79154 616 s1->s[s1Length + 2] = '\0';
Azure.IoT Build 0:fa2de1b79154 617 result = 0;
Azure.IoT Build 0:fa2de1b79154 618 }
Azure.IoT Build 0:fa2de1b79154 619 }
Azure.IoT Build 0:fa2de1b79154 620 return result;
Azure.IoT Build 0:fa2de1b79154 621 }
Azure.IoT Build 0:fa2de1b79154 622 /*this function will revert a string to an empty state*/
Azure.IoT Build 0:fa2de1b79154 623 /*Returns 0 if the revert was succesful*/
Azure.IoT Build 0:fa2de1b79154 624 /* Codes_SRS_STRING_07_022: [STRING_empty shall revert the STRING_HANDLE to an empty state.] */
Azure.IoT Build 0:fa2de1b79154 625 int STRING_empty(STRING_HANDLE handle)
Azure.IoT Build 0:fa2de1b79154 626 {
Azure.IoT Build 0:fa2de1b79154 627 int result;
Azure.IoT Build 0:fa2de1b79154 628 if (handle == NULL)
Azure.IoT Build 0:fa2de1b79154 629 {
Azure.IoT Build 0:fa2de1b79154 630 /* Codes_SRS_STRING_07_023: [STRING_empty shall return a nonzero value if the STRING_HANDLE is NULL.] */
AzureIoTClient 21:b92006c5b9ff 631 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 632 }
Azure.IoT Build 0:fa2de1b79154 633 else
Azure.IoT Build 0:fa2de1b79154 634 {
Azure.IoT Build 0:fa2de1b79154 635 STRING* s1 = (STRING*)handle;
Azure.IoT Build 0:fa2de1b79154 636 char* temp = (char*)realloc(s1->s, 1);
Azure.IoT Build 0:fa2de1b79154 637 if (temp == NULL)
Azure.IoT Build 0:fa2de1b79154 638 {
Azure.IoT Build 0:fa2de1b79154 639 /* Codes_SRS_STRING_07_030: [STRING_empty shall return a nonzero value if the STRING_HANDLE is NULL.] */
AzureIoTClient 21:b92006c5b9ff 640 result = __FAILURE__;
Azure.IoT Build 0:fa2de1b79154 641 }
Azure.IoT Build 0:fa2de1b79154 642 else
Azure.IoT Build 0:fa2de1b79154 643 {
Azure.IoT Build 0:fa2de1b79154 644 s1->s = temp;
Azure.IoT Build 0:fa2de1b79154 645 s1->s[0] = '\0';
Azure.IoT Build 0:fa2de1b79154 646 result = 0;
Azure.IoT Build 0:fa2de1b79154 647 }
Azure.IoT Build 0:fa2de1b79154 648 }
Azure.IoT Build 0:fa2de1b79154 649 return result;
Azure.IoT Build 0:fa2de1b79154 650 }
Azure.IoT Build 0:fa2de1b79154 651
Azure.IoT Build 0:fa2de1b79154 652 /*this function will deallocate a string constructed by str_new*/
Azure.IoT Build 0:fa2de1b79154 653 /* Codes_SRS_STRING_07_010: [STRING_delete will free the memory allocated by the STRING_HANDLE.] */
Azure.IoT Build 0:fa2de1b79154 654 void STRING_delete(STRING_HANDLE handle)
Azure.IoT Build 0:fa2de1b79154 655 {
Azure.IoT Build 0:fa2de1b79154 656 /* Codes_SRS_STRING_07_011: [STRING_delete will not attempt to free anything with a NULL STRING_HANDLE.] */
Azure.IoT Build 0:fa2de1b79154 657 if (handle != NULL)
Azure.IoT Build 0:fa2de1b79154 658 {
Azure.IoT Build 0:fa2de1b79154 659 STRING* value = (STRING*)handle;
Azure.IoT Build 0:fa2de1b79154 660 free(value->s);
Azure.IoT Build 0:fa2de1b79154 661 value->s = NULL;
Azure.IoT Build 0:fa2de1b79154 662 free(value);
Azure.IoT Build 0:fa2de1b79154 663 }
Azure.IoT Build 0:fa2de1b79154 664 }
Azure.IoT Build 0:fa2de1b79154 665
Azure.IoT Build 0:fa2de1b79154 666 /* Codes_SRS_STRING_07_020: [STRING_c_str shall return the const char* associated with the given STRING_HANDLE.] */
Azure.IoT Build 0:fa2de1b79154 667 const char* STRING_c_str(STRING_HANDLE handle)
Azure.IoT Build 0:fa2de1b79154 668 {
Azure.IoT Build 0:fa2de1b79154 669 const char* result;
Azure.IoT Build 0:fa2de1b79154 670 if (handle != NULL)
Azure.IoT Build 0:fa2de1b79154 671 {
Azure.IoT Build 0:fa2de1b79154 672 result = ((STRING*)handle)->s;
Azure.IoT Build 0:fa2de1b79154 673 }
Azure.IoT Build 0:fa2de1b79154 674 else
Azure.IoT Build 0:fa2de1b79154 675 {
Azure.IoT Build 0:fa2de1b79154 676 /* Codes_SRS_STRING_07_021: [STRING_c_str shall return NULL if the STRING_HANDLE is NULL.] */
Azure.IoT Build 0:fa2de1b79154 677 result = NULL;
Azure.IoT Build 0:fa2de1b79154 678 }
Azure.IoT Build 0:fa2de1b79154 679 return result;
Azure.IoT Build 0:fa2de1b79154 680 }
Azure.IoT Build 0:fa2de1b79154 681
Azure.IoT Build 0:fa2de1b79154 682 /* Codes_SRS_STRING_07_024: [STRING_length shall return the length of the underlying char* for the given handle] */
Azure.IoT Build 0:fa2de1b79154 683 size_t STRING_length(STRING_HANDLE handle)
Azure.IoT Build 0:fa2de1b79154 684 {
Azure.IoT Build 0:fa2de1b79154 685 size_t result = 0;
Azure.IoT Build 0:fa2de1b79154 686 /* Codes_SRS_STRING_07_025: [STRING_length shall return zero if the given handle is NULL.] */
Azure.IoT Build 0:fa2de1b79154 687 if (handle != NULL)
Azure.IoT Build 0:fa2de1b79154 688 {
Azure.IoT Build 0:fa2de1b79154 689 STRING* value = (STRING*)handle;
Azure.IoT Build 0:fa2de1b79154 690 result = strlen(value->s);
Azure.IoT Build 0:fa2de1b79154 691 }
Azure.IoT Build 0:fa2de1b79154 692 return result;
Azure.IoT Build 0:fa2de1b79154 693 }
Azure.IoT Build 0:fa2de1b79154 694
Azure.IoT Build 0:fa2de1b79154 695 /*Codes_SRS_STRING_02_007: [STRING_construct_n shall construct a STRING_HANDLE from first "n" characters of the string pointed to by psz parameter.]*/
Azure.IoT Build 0:fa2de1b79154 696 STRING_HANDLE STRING_construct_n(const char* psz, size_t n)
Azure.IoT Build 0:fa2de1b79154 697 {
Azure.IoT Build 0:fa2de1b79154 698 STRING_HANDLE result;
Azure.IoT Build 0:fa2de1b79154 699 /*Codes_SRS_STRING_02_008: [If psz is NULL then STRING_construct_n shall return NULL.] */
Azure.IoT Build 0:fa2de1b79154 700 if (psz == NULL)
Azure.IoT Build 0:fa2de1b79154 701 {
Azure.IoT Build 0:fa2de1b79154 702 result = NULL;
AzureIoTClient 1:9190c0f4d23a 703 LogError("invalid arg (NULL)");
Azure.IoT Build 0:fa2de1b79154 704 }
Azure.IoT Build 0:fa2de1b79154 705 else
Azure.IoT Build 0:fa2de1b79154 706 {
Azure.IoT Build 0:fa2de1b79154 707 size_t len = strlen(psz);
Azure.IoT Build 0:fa2de1b79154 708 /*Codes_SRS_STRING_02_009: [If n is bigger than the size of the string psz, then STRING_construct_n shall return NULL.] */
Azure.IoT Build 0:fa2de1b79154 709 if (n > len)
Azure.IoT Build 0:fa2de1b79154 710 {
Azure.IoT Build 0:fa2de1b79154 711 result = NULL;
AzureIoTClient 1:9190c0f4d23a 712 LogError("invalig arg (n is bigger than the size of the string)");
Azure.IoT Build 0:fa2de1b79154 713 }
Azure.IoT Build 0:fa2de1b79154 714 else
Azure.IoT Build 0:fa2de1b79154 715 {
Azure.IoT Build 0:fa2de1b79154 716 STRING* str;
Azure.IoT Build 0:fa2de1b79154 717 if ((str = (STRING*)malloc(sizeof(STRING))) != NULL)
Azure.IoT Build 0:fa2de1b79154 718 {
Azure.IoT Build 0:fa2de1b79154 719 if ((str->s = (char*)malloc(len + 1)) != NULL)
Azure.IoT Build 0:fa2de1b79154 720 {
AzureIoTClient 19:2e0811512ceb 721 (void)memcpy(str->s, psz, n);
Azure.IoT Build 0:fa2de1b79154 722 str->s[n] = '\0';
Azure.IoT Build 0:fa2de1b79154 723 result = (STRING_HANDLE)str;
Azure.IoT Build 0:fa2de1b79154 724 }
Azure.IoT Build 0:fa2de1b79154 725 /* Codes_SRS_STRING_02_010: [In all other error cases, STRING_construct_n shall return NULL.] */
Azure.IoT Build 0:fa2de1b79154 726 else
Azure.IoT Build 0:fa2de1b79154 727 {
Azure.IoT Build 0:fa2de1b79154 728 free(str);
Azure.IoT Build 0:fa2de1b79154 729 result = NULL;
Azure.IoT Build 0:fa2de1b79154 730 }
Azure.IoT Build 0:fa2de1b79154 731 }
Azure.IoT Build 0:fa2de1b79154 732 else
Azure.IoT Build 0:fa2de1b79154 733 {
Azure.IoT Build 0:fa2de1b79154 734 /* Codes_SRS_STRING_02_010: [In all other error cases, STRING_construct_n shall return NULL.] */
Azure.IoT Build 0:fa2de1b79154 735 result = NULL;
Azure.IoT Build 0:fa2de1b79154 736 }
Azure.IoT Build 0:fa2de1b79154 737 }
Azure.IoT Build 0:fa2de1b79154 738 }
Azure.IoT Build 0:fa2de1b79154 739 return result;
Azure.IoT Build 0:fa2de1b79154 740 }
Azure.IoT Build 0:fa2de1b79154 741
Azure.IoT Build 0:fa2de1b79154 742 /* Codes_SRS_STRING_07_034: [STRING_compare returns an integer greater than, equal to, or less than zero, accordingly as the string pointed to by s1 is greater than, equal to, or less than the string s2.] */
Azure.IoT Build 0:fa2de1b79154 743 int STRING_compare(STRING_HANDLE s1, STRING_HANDLE s2)
Azure.IoT Build 0:fa2de1b79154 744 {
Azure.IoT Build 0:fa2de1b79154 745 int result;
Azure.IoT Build 0:fa2de1b79154 746 if (s1 == NULL && s2 == NULL)
Azure.IoT Build 0:fa2de1b79154 747 {
Azure.IoT Build 0:fa2de1b79154 748 /* Codes_SRS_STRING_07_035: [If h1 and h2 are both NULL then STRING_compare shall return 0.]*/
Azure.IoT Build 0:fa2de1b79154 749 result = 0;
Azure.IoT Build 0:fa2de1b79154 750 }
Azure.IoT Build 0:fa2de1b79154 751 else if (s1 == NULL)
Azure.IoT Build 0:fa2de1b79154 752 {
Azure.IoT Build 0:fa2de1b79154 753 /* Codes_SRS_STRING_07_036: [If h1 is NULL and h2 is nonNULL then STRING_compare shall return 1.]*/
Azure.IoT Build 0:fa2de1b79154 754 result = 1;
Azure.IoT Build 0:fa2de1b79154 755 }
Azure.IoT Build 0:fa2de1b79154 756 else if (s2 == NULL)
Azure.IoT Build 0:fa2de1b79154 757 {
Azure.IoT Build 0:fa2de1b79154 758 /* Codes_SRS_STRING_07_037: [If h2 is NULL and h1 is nonNULL then STRING_compare shall return -1.] */
Azure.IoT Build 0:fa2de1b79154 759 result = -1;
Azure.IoT Build 0:fa2de1b79154 760 }
Azure.IoT Build 0:fa2de1b79154 761 else
Azure.IoT Build 0:fa2de1b79154 762 {
Azure.IoT Build 0:fa2de1b79154 763 /* Codes_SRS_STRING_07_038: [STRING_compare shall compare the char s variable using the strcmp function.] */
Azure.IoT Build 0:fa2de1b79154 764 STRING* value1 = (STRING*)s1;
Azure.IoT Build 0:fa2de1b79154 765 STRING* value2 = (STRING*)s2;
Azure.IoT Build 0:fa2de1b79154 766 result = strcmp(value1->s, value2->s);
Azure.IoT Build 0:fa2de1b79154 767 }
Azure.IoT Build 0:fa2de1b79154 768 return result;
Azure.IoT Build 0:fa2de1b79154 769 }
AzureIoTClient 4:2bd2074fe6c4 770
AzureIoTClient 4:2bd2074fe6c4 771 STRING_HANDLE STRING_from_byte_array(const unsigned char* source, size_t size)
AzureIoTClient 4:2bd2074fe6c4 772 {
AzureIoTClient 4:2bd2074fe6c4 773 STRING* result;
AzureIoTClient 4:2bd2074fe6c4 774 /*Codes_SRS_STRING_02_022: [ If source is NULL and size > 0 then STRING_from_BUFFER shall fail and return NULL. ]*/
AzureIoTClient 4:2bd2074fe6c4 775 if ((source == NULL) && (size > 0))
AzureIoTClient 4:2bd2074fe6c4 776 {
AzureIoTClient 4:2bd2074fe6c4 777 LogError("invalid parameter (NULL)");
AzureIoTClient 4:2bd2074fe6c4 778 result = NULL;
AzureIoTClient 4:2bd2074fe6c4 779 }
AzureIoTClient 4:2bd2074fe6c4 780 else
AzureIoTClient 4:2bd2074fe6c4 781 {
AzureIoTClient 4:2bd2074fe6c4 782 /*Codes_SRS_STRING_02_023: [ Otherwise, STRING_from_BUFFER shall build a string that has the same content (byte-by-byte) as source and return a non-NULL handle. ]*/
AzureIoTClient 4:2bd2074fe6c4 783 result = (STRING*)malloc(sizeof(STRING));
AzureIoTClient 4:2bd2074fe6c4 784 if (result == NULL)
AzureIoTClient 4:2bd2074fe6c4 785 {
AzureIoTClient 4:2bd2074fe6c4 786 /*Codes_SRS_STRING_02_024: [ If building the string fails, then STRING_from_BUFFER shall fail and return NULL. ]*/
AzureIoTClient 4:2bd2074fe6c4 787 LogError("oom - unable to malloc");
AzureIoTClient 4:2bd2074fe6c4 788 /*return as is*/
AzureIoTClient 4:2bd2074fe6c4 789 }
AzureIoTClient 4:2bd2074fe6c4 790 else
AzureIoTClient 4:2bd2074fe6c4 791 {
AzureIoTClient 4:2bd2074fe6c4 792 /*Codes_SRS_STRING_02_023: [ Otherwise, STRING_from_BUFFER shall build a string that has the same content (byte-by-byte) as source and return a non-NULL handle. ]*/
AzureIoTClient 4:2bd2074fe6c4 793 result->s = (char*)malloc(size + 1);
AzureIoTClient 4:2bd2074fe6c4 794 if (result->s == NULL)
AzureIoTClient 4:2bd2074fe6c4 795 {
AzureIoTClient 4:2bd2074fe6c4 796 /*Codes_SRS_STRING_02_024: [ If building the string fails, then STRING_from_BUFFER shall fail and return NULL. ]*/
AzureIoTClient 4:2bd2074fe6c4 797 LogError("oom - unable to malloc");
AzureIoTClient 4:2bd2074fe6c4 798 free(result);
AzureIoTClient 4:2bd2074fe6c4 799 result = NULL;
AzureIoTClient 4:2bd2074fe6c4 800 }
AzureIoTClient 4:2bd2074fe6c4 801 else
AzureIoTClient 4:2bd2074fe6c4 802 {
AzureIoTClient 19:2e0811512ceb 803 (void)memcpy(result->s, source, size);
AzureIoTClient 4:2bd2074fe6c4 804 result->s[size] = '\0'; /*all is fine*/
AzureIoTClient 4:2bd2074fe6c4 805 }
AzureIoTClient 4:2bd2074fe6c4 806 }
AzureIoTClient 4:2bd2074fe6c4 807 }
AzureIoTClient 4:2bd2074fe6c4 808 return (STRING_HANDLE)result;
AzureIoTClient 4:2bd2074fe6c4 809 }
AzureIoTClient 30:ce3813c5a692 810
AzureIoTClient 30:ce3813c5a692 811 int STRING_replace(STRING_HANDLE handle, char target, char replace)
AzureIoTClient 30:ce3813c5a692 812 {
AzureIoTClient 30:ce3813c5a692 813 int result;
AzureIoTClient 30:ce3813c5a692 814 if (handle == NULL)
AzureIoTClient 30:ce3813c5a692 815 {
AzureIoTClient 30:ce3813c5a692 816 /* Codes_SRS_STRING_07_046: [ If handle is NULL STRING_replace shall return a non-zero value. ] */
AzureIoTClient 30:ce3813c5a692 817 result = __FAILURE__;
AzureIoTClient 30:ce3813c5a692 818 }
AzureIoTClient 30:ce3813c5a692 819 else if (target == replace)
AzureIoTClient 30:ce3813c5a692 820 {
AzureIoTClient 30:ce3813c5a692 821 /* Codes_SRS_STRING_07_048: [ If target and replace are equal STRING_replace, shall do nothing shall return zero. ] */
AzureIoTClient 30:ce3813c5a692 822 result = 0;
AzureIoTClient 30:ce3813c5a692 823 }
AzureIoTClient 30:ce3813c5a692 824 else
AzureIoTClient 30:ce3813c5a692 825 {
AzureIoTClient 30:ce3813c5a692 826 size_t length;
AzureIoTClient 30:ce3813c5a692 827 size_t index;
AzureIoTClient 30:ce3813c5a692 828 /* Codes_SRS_STRING_07_047: [ STRING_replace shall replace all instances of target with replace. ] */
AzureIoTClient 30:ce3813c5a692 829 STRING* str_value = (STRING*)handle;
AzureIoTClient 30:ce3813c5a692 830 length = strlen(str_value->s);
AzureIoTClient 30:ce3813c5a692 831 for (index = 0; index < length; index++)
AzureIoTClient 30:ce3813c5a692 832 {
AzureIoTClient 30:ce3813c5a692 833 if (str_value->s[index] == target)
AzureIoTClient 30:ce3813c5a692 834 {
AzureIoTClient 30:ce3813c5a692 835 str_value->s[index] = replace;
AzureIoTClient 30:ce3813c5a692 836 }
AzureIoTClient 30:ce3813c5a692 837 }
AzureIoTClient 30:ce3813c5a692 838 /* Codes_SRS_STRING_07_049: [ On success STRING_replace shall return zero. ] */
AzureIoTClient 30:ce3813c5a692 839 result = 0;
AzureIoTClient 30:ce3813c5a692 840 }
AzureIoTClient 30:ce3813c5a692 841 return result;
AzureIoTClient 30:ce3813c5a692 842 }