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定义一个字符指针数组

asprintf(&mParams[0], "ADDRESS=%s/%d", addrstr, ifaddr->ifa_prefixlen);asprintf(&mParams[1], "INTERFACE=%s", ifname);asprintf(&mParams[2], "FLAGS=%u", ifaddr->ifa_flags);asprintf(&mParams[3], "SCOPE=%u", ifaddr->ifa_scope);asprintf(&mParams[4], "IFINDEX=%u", ifaddr->ifa_index);

const char *NetlinkEvent::findParam(const char *paramName) {    size_t len = strlen(paramName);    for (int i = 0; i < NL_PARAMS_MAX && mParams[i] != NULL; ++i) {        const char *ptr = mParams[i] + len;        if (!strncmp(mParams[i], paramName, len) && *ptr == '=')            return ++ptr;    }    SLOGE("NetlinkEvent::FindParam(): Parameter '%s' not found", paramName);    return NULL;}

注意asprint 使用完需要释放

for (i = 0; i < NL_PARAMS_MAX; i++) {        if (!mParams[i])            break;        free(mParams[i]);    }

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