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Make sure there are commas in gamepad mapping strings

main
Sam Lantinga 2023-07-18 17:11:02 -07:00
parent b1a0bc3fb0
commit c0e0f47755
1 changed files with 16 additions and 4 deletions
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20
src/joystick/SDL_gamepad.c
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@ -1464,6 +1464,7 @@ static GamepadMapping_t *SDL_PrivateAddMappingForGUID(SDL_JoystickGUID jGUID, co
if (crc) {
/* Make sure the mapping has the CRC */
char *new_mapping;
const char *optional_comma;
char *crc_end = "";
char *crc_string = SDL_strstr(pchMapping, SDL_GAMEPAD_CRC_FIELD);
if (crc_string) {
@ -1476,7 +1477,14 @@ static GamepadMapping_t *SDL_PrivateAddMappingForGUID(SDL_JoystickGUID jGUID, co
*crc_string = '\0';
}
if (SDL_asprintf(&new_mapping, "%s%s%.4x,%s", pchMapping, SDL_GAMEPAD_CRC_FIELD, crc, crc_end) >= 0) {
/* Make sure there's a comma before the CRC */
if (pchMapping[SDL_strlen(pchMapping) - 1] == ',') {
optional_comma = "";
} else {
optional_comma = ",";
}
if (SDL_asprintf(&new_mapping, "%s%s%s%.4x,%s", pchMapping, optional_comma, SDL_GAMEPAD_CRC_FIELD, crc, crc_end) >= 0) {
SDL_free(pchMapping);
pchMapping = new_mapping;
}
@ -1941,7 +1949,8 @@ static char *CreateMappingString(GamepadMapping_t *mapping, SDL_JoystickGUID gui
char *pMappingString, *pPlatformString;
char pchGUID[33];
size_t needed;
const char *platform = SDL_GetPlatform();
SDL_bool need_platform = SDL_FALSE;
const char *platform = NULL;
SDL_AssertJoysticksLocked();
@ -1952,10 +1961,12 @@ static char *CreateMappingString(GamepadMapping_t *mapping, SDL_JoystickGUID gui
if (!SDL_strstr(mapping->mapping, SDL_GAMEPAD_PLATFORM_FIELD)) {
/* add memory for ',' + platform:PLATFORM */
need_platform = SDL_TRUE;
if (mapping->mapping[SDL_strlen(mapping->mapping) - 1] != ',') {
needed += 1;
}
needed += SDL_GAMEPAD_PLATFORM_FIELD_SIZE + SDL_strlen(platform);
platform = SDL_GetPlatform();
needed += SDL_GAMEPAD_PLATFORM_FIELD_SIZE + SDL_strlen(platform) + 1;
}
pMappingString = SDL_malloc(needed);
@ -1966,12 +1977,13 @@ static char *CreateMappingString(GamepadMapping_t *mapping, SDL_JoystickGUID gui
(void)SDL_snprintf(pMappingString, needed, "%s,%s,%s", pchGUID, mapping->name, mapping->mapping);
if (!SDL_strstr(mapping->mapping, SDL_GAMEPAD_PLATFORM_FIELD)) {
if (need_platform) {
if (mapping->mapping[SDL_strlen(mapping->mapping) - 1] != ',') {
SDL_strlcat(pMappingString, ",", needed);
}
SDL_strlcat(pMappingString, SDL_GAMEPAD_PLATFORM_FIELD, needed);
SDL_strlcat(pMappingString, platform, needed);
SDL_strlcat(pMappingString, ",", needed);
}
/* Make sure multiple platform strings haven't made their way into the mapping */