fix: MQTTPacket.c read&write Int/Int4 error

[zhizhi-dev]

MQTTPacket.c read&write Int/Int4 error readInt writeInt readInt4 writeInt4

eg: writeInt4(0xFFFFFFFF)

[zhizhi-dev]

Signed-off-by: lijinggang [email protected]

[icraggs]

Looks like there's a problem: https://github.com/eclipse/paho.mqtt.c/issues/1372

[zhizhi-dev]

Looks like there's a problem: #1372 my problem, readInt realy means readInt16 ? Or readUInt16 ?

Two Byte Integer

[zhizhi-dev]

Looks like there's a problem: #1372 my problem, readInt realy means readInt16 ? Or readUInt16 ?

Two Byte Integer

int readInt(char** pptr) {
        char *ptr = *pptr;
        uint16_t val = ((((uint16_t)ptr[0]) << 8) | (uint8_t)ptr[1]);
       *pptr += 2;
       return val;
}

[zhizhi-dev]

Looks like there's a problem: #1372 my problem, readInt realy means readInt16 ? Or readUInt16 ?

Two Byte Integer

int readInt(char** pptr) {
        char *ptr = *pptr;
        uint16_t val = ((((uint16_t)ptr[0]) << 8) | (uint8_t)ptr[1]);
       *pptr += 2;
       return val;
}

suggest:

1. change Integer type to what it's extra is. readInt will be readUInt16,
2. using Intege type from <stdint.h> , link uint16_t , uint32_t
3. char* should change to uint8_t or typedef byte_t