protobuf-c write

write.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "addressbook.pb-c.h"


int main(int argc, char *argv[])
{
    Tutorial__AddressBook addrbook;
    uint8_t *buf;
    unsigned int len;

    tutorial__address_book__init(&addrbook);
    addrbook.n_people = 2;
    addrbook.people = (Tutorial__Person **)malloc(sizeof(Tutorial__Person*) * addrbook.n_people);
    for (int lp = 0; lp < addrbook.n_people; lp++) {
        addrbook.people[lp] = (Tutorial__Person *)malloc(sizeof(Tutorial__Person));
        tutorial__person__init(addrbook.people[lp]);
    }

    addrbook.people[0]->id = 1;
    addrbook.people[0]->name = "yoshio";
    addrbook.people[0]->email = "yoshio@mail.com";

    addrbook.people[1]->id = 1;
    addrbook.people[1]->name = "yoshida";
    addrbook.people[1]->email = "yoshida@mail.com";

    len = tutorial__address_book__get_packed_size(&addrbook);
    buf = (uint8_t *)malloc(len);
    tutorial__address_book__pack(&addrbook, buf);

    FILE *fp = fopen("addrbook", "wb");
    if (fp != NULL) {
        fwrite(buf, len, 1, fp);
        fclose(fp);
    }

    for (int lp = 0; lp < addrbook.n_people; lp++) {
        free(addrbook.people[lp]);
    }
    free(addrbook.people);
    free(buf);
    return 0;
}