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A macOS connectx example
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#include <stdio.h> | |
#include <unistd.h> | |
#include <sys/socket.h> | |
#include <netinet/tcp.h> | |
#include <netinet/in.h> | |
#include <arpa/inet.h> | |
#define HOST_NAME "icanhazip.com" | |
#define HOST_IP "136.144.56.255" | |
#define HOST_PORT 80 | |
int main(int argc, char **argv) { | |
int soc = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); | |
if (soc < 0) { | |
perror("ERROR: socket"); | |
return 1; | |
} | |
struct sockaddr_in addr; | |
addr.sin_family = AF_INET; | |
addr.sin_port = htons(HOST_PORT); | |
addr.sin_len = sizeof(addr); | |
inet_aton(HOST_IP, &addr.sin_addr); | |
sa_endpoints_t endpoints; | |
endpoints.sae_srcif = 0; | |
endpoints.sae_srcaddr = NULL; | |
endpoints.sae_srcaddrlen = 0; | |
endpoints.sae_dstaddr = (struct sockaddr *)&addr; | |
endpoints.sae_dstaddrlen = sizeof(addr); | |
int result; | |
result = connectx(soc, &endpoints, 0, 0, NULL, 0, NULL, NULL); | |
if (result < 0) { | |
perror("ERROR: connectx"); | |
close(soc); | |
return 1; | |
} | |
char req[] = | |
"GET / HTTP/1.1\r\n" | |
"Host: " HOST_NAME "\r\n" | |
"\r\n"; | |
result = write(soc, req, sizeof(req)); | |
if (result < 0) { | |
perror("ERROR: write"); | |
close(soc); | |
return 1; | |
} | |
char buf[1024]; | |
for (ssize_t size; (size = read(soc, buf, sizeof(buf)));) { | |
if (size < 0) { | |
perror("ERROR: read"); | |
close(soc); | |
return 1; | |
} | |
for (size_t i = 0; i < size; i++) { | |
printf("%c", buf[i]); | |
} | |
} | |
close(soc); | |
return 0; | |
} |
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Good call! Updated.