在我的應用程序中,我為簡單的http服務器創建了一個線程,然后從我的應用程序中嘗試連接到http服務器,但是在recv調用中控件被阻止/掛起.

但是,如果嘗試使用linux GET命令連接到應用程序的http服務器,則我將成功連接到http服務器.

據我對谷歌搜索的了解,我發現這不是正確的方法.

但是,如果要執行此操作,則應以什么方式創建套接字,以便可以從應用程序內部連接http服務器.

以下是我的http服務器套接字的創建方式

pthread_create(&pt_server, NULL, http_srvr, NULL);

//http server handler

void *http_server()

{

int sockfd, new_fd;

struct sockaddr_in my_addr;

struct sockaddr_in their_addr;

socklen_t sin_size;

struct sigaction sa;

int yes=1;

if ((sockfd = socket(PF_INET, SOCK_STREAM, 0)) == -1)

{

perror("socket");

exit(1);

}

if (setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&yes,sizeof(int)) == -1)

{

perror("setsockopt");

exit(1);

}

my_addr.sin_family = AF_INET; // host byte order

my_addr.sin_port = htons(HTTP_PORT); // short, network byte order

my_addr.sin_addr.s_addr = INADDR_ANY; // automatically fill with my IP

memset(&(my_addr.sin_zero), '\0', 8); // zero the rest of the struct

if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr))== -1)

{

perror("bind");

exit(1);

}

printf("Listening to sockets\n");

if (listen(sockfd, BACKLOG) == -1)

{

perror("listen");

exit(1);

}

sa.sa_handler = sigchld_handler; // reap all dead processes

sigemptyset(&sa.sa_mask);

sa.sa_flags = SA_RESTART;

if (sigaction(SIGCHLD, &sa, NULL) == -1)

{

perror("sigaction");

exit(1);

}

printf("server: waiting for connections...\n");

while(1) { // main accept() loop

sin_size = sizeof(struct sockaddr_in);

if ((new_fd = accept(sockfd, (struct sockaddr *)&their_addr,&sin_size)) == -1)

{

perror("accept");

continue;

}

printf("server: got connection from %s\n",inet_ntoa(their_addr.sin_addr));

handle_connection(new_fd);

}

}

以下是我如何將http POST到我的http服務器

/* create socket */

if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0)

return ERRSOCK;

setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, 0, 0);

/* connect to server */

if (connect(s, &server, sizeof(server)) < 0)

ret=ERRCONN;

else {

if (pfd) *pfd=s;

/* create header */

if (proxy) {

sprintf(header,

"%s http://%.128s:%d/%.256s HTTP/1.0\015\012User-Agent: %s\015\012%s\015\012",

command,

http_server1,

http_port,

url,

http_user_agent,

additional_header

);

} else {

sprintf(header,

"%s /%.256s HTTP/1.0\015\012User-Agent: %s\015\012%s\015\012",

command,

url,

http_user_agent,

additional_header

);

}

hlg=strlen(header);

/* send header */

if (send(s,header,hlg,0)!=hlg)

ret= ERRWRHD;

/* send data */

else if (length && data && (send(s,data,length,0)!=length) )

ret= ERRWRDT;

else {

/* read result & check */

ret=http_read_line(s,header,MAXBUF-1);

以下是http_read_line的內容,并且在此函數中,recv調用被阻止

static int http_read_line (fd,buffer,max)

int fd; /* file descriptor to read from */

char *buffer; /* placeholder for data */

int max; /* max number of bytes to read */

{ /* not efficient on long lines (multiple unbuffered 1 char reads) */

int n=0;

while (n

if (recv(fd,buffer,1,0)!=1) {

n= -n;

break;

}

n++;

if (*buffer=='\015') continue; /* ignore CR */

if (*buffer=='\012') break; /* LF is the separator */

buffer++;

}

*buffer=0;

return n;

}

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