[問題] gcc在compile時...

看板C_and_CPP (C/C++)作者evilkids (背著蒙古包睡你家)時間16年前 (2009/04/16 23:04)推噓1(1推 0噓 5→)

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我想在fedora 7上寫一個c socket的程式可是當我 gcc server.c時... server.c: 在函式「error」中： server.c:11: 警告：隱含宣告與內建函式「exit」不相容 server.c: 在函式「main」中： server.c:22: 警告：隱含宣告與內建函式「exit」不相容 server.c:27: 警告：隱含宣告與內建函式「bzero」不相容這樣的訊息代表著gcc套件太舊嗎? 還是程式有問題?? 程式如下... #include <stdio.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> void error(char *msg) { perror(msg); exit(1); } int main(int argc, char *argv[]) { int sockfd, newsockfd, portno, clilen; char buffer[256]; struct sockaddr_in serv_addr, cli_addr; int n; if (argc < 2) { fprintf(stderr,"ERROR, no port provided\n"); exit(1); } sockfd = socket(AF_INET, SOCK_STREAM, 0); if (sockfd < 0) error("ERROR opening socket"); bzero((char *) &serv_addr, sizeof(serv_addr)); portno = atoi(argv[1]); serv_addr.sin_family = AF_INET; serv_addr.sin_addr.s_addr = INADDR_ANY; serv_addr.sin_port = htons(portno); if (bind(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr)) < 0) error("ERROR on binding"); listen(sockfd,5); clilen = sizeof(cli_addr); newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen); if (newsockfd < 0) error("ERROR on accept"); bzero(buffer,256); n = read(newsockfd,buffer,255); if (n < 0) error("ERROR reading from socket"); printf("Here is the message: %s\n",buffer); n = write(newsockfd,"I got your message",18); if (n < 0) error("ERROR writing to socket"); return 0; } 我到底哪裡出問題?? 怎麼解決?? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 125.229.38.61 ※ 編輯: evilkids 來自: 125.229.38.61 (04/16 23:05)