1 // Test that ASan doesn't raise false alarm when MSG_TRUNC is present. 2 // 3 // RUN: %clangxx %s -o %t && %run %t 2>&1 4 // 5 // UNSUPPORTED: android 6 7 #include <stdlib.h> 8 #include <string.h> 9 #include <sys/types.h> 10 #include <sys/socket.h> 11 #include <netinet/ip.h> 12 #include <assert.h> 13 14 int main() { 15 int fd_0 = socket(AF_INET, SOCK_DGRAM, 0); 16 int fd_1 = socket(AF_INET, SOCK_DGRAM, 0); 17 struct sockaddr_in sin; 18 socklen_t len = sizeof(sin); 19 char *buf = (char *)malloc(1); 20 21 sin.sin_family = AF_INET; 22 // Choose a random port to bind. 23 sin.sin_port = 0; 24 sin.sin_addr.s_addr = INADDR_ANY; 25 26 assert(bind(fd_1, (struct sockaddr *)&sin, sizeof(sin)) == 0); 27 // Get the address and port binded. 28 assert(getsockname(fd_1, (struct sockaddr *)&sin, &len) == 0); 29 assert(sendto(fd_0, "hello", strlen("hello"), MSG_DONTWAIT, 30 (struct sockaddr *)&sin, sizeof(sin)) != -1); 31 assert(recv(fd_1, buf, 1, MSG_TRUNC) != -1); 32 free(buf); 33 34 return 0; 35 } 36 37
