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Make minor improvements

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This commit is contained in:
Justine Tunney
2021-05-15 21:53:26 -07:00
parent 221817e537
commit 4864565198
41 changed files with 394 additions and 367 deletions
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15
tool/net/dig.c
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@@ -31,12 +31,9 @@
void lookup(const char *name) {
int rc;
struct addrinfo hints = (struct addrinfo){.ai_family = AF_INET,
.ai_socktype = SOCK_STREAM,
.ai_protocol = IPPROTO_TCP,
.ai_flags = AI_NUMERICSERV};
struct addrinfo *addrs = NULL;
switch ((rc = getaddrinfo(name, "80", &hints, &addrs))) {
struct addrinfo *ai = NULL;
struct addrinfo hint = {AI_NUMERICSERV, AF_INET, SOCK_STREAM, IPPROTO_TCP};
switch ((rc = getaddrinfo(name, "80", &hint, &ai))) {
case EAI_SUCCESS:
break;
case EAI_SYSTEM:
@@ -47,8 +44,8 @@ void lookup(const char *name) {
gai_strerror(rc));
exit(1);
}
if (addrs) {
for (struct addrinfo *addr = addrs; addr; addr = addr->ai_next) {
if (ai) {
for (struct addrinfo *addr = ai; addr; addr = addr->ai_next) {
const unsigned char *ip =
addr->ai_family == AF_INET
? (const unsigned char *)&((struct sockaddr_in *)addr->ai_addr)
@@ -70,7 +67,7 @@ void lookup(const char *name) {
ip[3]);
printf("%-12s = %s\n", "ai_canonname", addr->ai_canonname);
}
freeaddrinfo(addrs);
freeaddrinfo(ai);
} else {
fprintf(stderr, "%s: %s\n", name, "no results");
}