Merge "Cleanup uses of sprintf so we can deprecate it." am: 5a3ac105

            res.append(cur->getAssetSource());

            off64_t size = (cur->getLength()+512)/1024;

            char buf[64];

            sprintf(buf, ": %dK\n", (int)size);

            snprintf(buf, sizeof(buf), ": %dK\n", (int)size);

            res.append(buf);

        }

        cur = cur->mNext;

    return 0;

}

static void calc_tar_checksum(char* buf) {

static void calc_tar_checksum(char* buf, size_t buf_size) {

    // [ 148 :   8 ] checksum -- to be calculated with this field as space chars

    memset(buf + 148, ' ', 8);

    // Now write the real checksum value:

    // [ 148 :   8 ]  checksum: 6 octal digits [leading zeroes], NUL, SPC

    sprintf(buf + 148, "%06o", sum); // the trailing space is already in place

    snprintf(buf + 148, buf_size - 148, "%06o", sum); // the trailing space is

                                                      // already in place

}

// Returns number of bytes written

static int write_pax_header_entry(char* buf, const char* key, const char* value) {

static int write_pax_header_entry(char* buf, size_t buf_size,

                                  const char* key, const char* value) {

    // start with the size of "1 key=value\n"

    int len = strlen(key) + strlen(value) + 4;

    if (len > 9) len++;

    // since PATH_MAX is 4096 we don't expect to have to generate any single

    // header entry longer than 9999 characters

    return sprintf(buf, "%d %s=%s\n", len, key, value);

    return snprintf(buf, buf_size, "%d %s=%s\n", len, key, value);

}

// Wire format to the backup manager service is chunked:  each chunk is prefixed by

    // read/write up to this much at a time.

    const size_t BUFSIZE = 32 * 1024;

    char* buf = (char *)calloc(1,BUFSIZE);

    char* paxHeader = buf + 512;    // use a different chunk of it as separate scratch

    char* paxData = buf + 1024;

    const size_t PAXHEADER_OFFSET = 512;

    const size_t PAXHEADER_SIZE = 512;

    const size_t PAXDATA_SIZE = BUFSIZE - (PAXHEADER_SIZE + PAXHEADER_OFFSET);

    char* const paxHeader = buf + PAXHEADER_OFFSET; // use a different chunk of

                                                    // it as separate scratch

    char* const paxData = paxHeader + PAXHEADER_SIZE;

    if (buf == NULL) {

        ALOGE("Out of mem allocating transfer buffer");

    // already preflighted

    if (needExtended) {

        char sizeStr[32];   // big enough for a 64-bit unsigned value in decimal

        char* p = paxData;

        // construct the pax extended header data block

        memset(paxData, 0, BUFSIZE - (paxData - buf));

        memset(paxData, 0, PAXDATA_SIZE);

        // size header -- calc len in digits by actually rendering the number

        // to a string - brute force but simple

        int paxLen = 0;

        snprintf(sizeStr, sizeof(sizeStr), "%lld", (long long)s.st_size);

        p += write_pax_header_entry(p, "size", sizeStr);

        paxLen += write_pax_header_entry(paxData, PAXDATA_SIZE, "size", sizeStr);

        // fullname was generated above with the ustar paths

        p += write_pax_header_entry(p, "path", fullname.string());

        paxLen += write_pax_header_entry(paxData + paxLen, PAXDATA_SIZE - paxLen,

                "path", fullname.string());

        // Now we know how big the pax data is

        int paxLen = p - paxData;

        // Now build the pax *header* templated on the ustar header

        memcpy(paxHeader, buf, 512);

        // [ 124 :  12 ] size of pax extended header data

        memset(paxHeader + 124, 0, 12);

        snprintf(paxHeader + 124, 12, "%011o", (unsigned int)(p - paxData));

        snprintf(paxHeader + 124, 12, "%011o", (unsigned int)paxLen);

        // Checksum and write the pax block header

        calc_tar_checksum(paxHeader);

        calc_tar_checksum(paxHeader, PAXHEADER_SIZE);

        send_tarfile_chunk(writer, paxHeader, 512);

        // Now write the pax data itself

    }

    // Checksum and write the 512-byte ustar file header block to the output

    calc_tar_checksum(buf);

    calc_tar_checksum(buf, BUFSIZE);

    send_tarfile_chunk(writer, buf, 512);

    // Now write the file data itself, for real files.  We honor tar's convention that

            }

            if (count) {

                sprintf(ifr4.ifr_name, "%s:%d", name, count);

                snprintf(ifr4.ifr_name, sizeof(ifr4.ifr_name), "%s:%d", name, count);

            }

            if (ioctl(inet4, SIOCSIFADDR, &ifr4)) {

                count = (errno == EINVAL) ? BAD_ARGUMENT : SYSTEM_ERROR;