C++ (Cpp) check_file_signature Examples

Example #1

File: crypt.cpp Project: AltroCoin/altrocoin

// same, signature given as string
//
int check_file_signature2(
    const char* md5, const char* signature_text,
    const char* key_text, bool& answer
) {
    R_RSA_PUBLIC_KEY key;
    unsigned char signature_buf[SIGNATURE_SIZE_BINARY];
    int retval;
    DATA_BLOCK signature;

    retval = sscan_key_hex(key_text, (KEY*)&key, sizeof(key));
    if (retval) {
        fprintf(stderr, "check_file_signature2: sscan_key_hex failed\n");
        return retval;
    }
    signature.data = signature_buf;
    signature.len = sizeof(signature_buf);
    retval = sscan_hex_data(signature_text, signature);
    if (retval) return retval;
    return check_file_signature(md5, key, signature, answer);
}

Example #2

File: global_commands.c Project: jpoler/toxic

void cmd_avatar(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
    if (argc < 2) {
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to set avatar: No file path supplied.");
        return;
    }

    /* turns the avatar off */
    if (strlen(argv[1]) < 3) {
        tox_unset_avatar(m);
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "No avatar set.");
        return;
    }

    if (argv[1][0] != '\"') {
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Path must be enclosed in quotes.");
        return;
    }

    /* remove opening and closing quotes */
    char path[MAX_STR_SIZE];
    snprintf(path, sizeof(path), "%s", &argv[1][1]);
    int len = strlen(path) - 1;
    path[len] = '\0';

    off_t sz = file_size(path);

    if (sz <= 8) {
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to set avatar: Invalid file.");
        return;
    }

    if (sz > TOX_AVATAR_MAX_DATA_LENGTH) {
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to set avatar: File is too large.");
        return;
    }

    FILE *fp = fopen(path, "rb");

    if (fp == NULL) {
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to set avatar: Could not open file.");
        return;
    }

    char PNG_signature[8] = {0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A};

    if (check_file_signature(PNG_signature, sizeof(PNG_signature), fp) != 0) {
        fclose(fp);
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to set avatar: File type not supported.");
        return;
    }

    char *avatar = malloc(sz);

    if (avatar == NULL)
        exit_toxic_err("Failed in set_avatar", FATALERR_MEMORY);

    if (fread(avatar, sz, 1, fp) != 1) {
        fclose(fp);
        free(avatar);
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to set avatar: Read fail.");
        return;
    }

    if (tox_set_avatar(m, TOX_AVATAR_FORMAT_PNG, (const uint8_t *) avatar, (uint32_t) sz) == -1)
        line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Failed to set avatar: Core error.");

    char filename[MAX_STR_SIZE];
    get_file_name(filename, sizeof(filename), path);
    line_info_add(self, NULL, NULL, NULL, SYS_MSG, 0, 0, "Avatar set to '%s'", filename);

    fclose(fp);
    free(avatar);
}