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21 lines
443 B
C
21 lines
443 B
C
#include <sys/types.h>
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#ifndef __MINGW32__
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#include <unistd.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#endif
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#include "socket.h"
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#include "ndelay.h"
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#include <errno.h>
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int socket_tcp4(void) {
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int s;
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#ifdef SOCK_NONBLOCK
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if ((s=socket(PF_INET,SOCK_STREAM|SOCK_NONBLOCK,IPPROTO_TCP))>-1 || errno!=EINVAL) return s;
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#endif
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s=socket_tcp4b();
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if (s==-1) return -1;
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if (ndelay_on(s) == -1) { close(s); return -1; }
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return s;
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}
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