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53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#include "syshdrs.h"
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#ifndef NO_SIGNALS
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extern volatile Sjmp_buf gNetTimeoutJmp;
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extern volatile Sjmp_buf gPipeJmp;
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#endif
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int
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SAcceptA(int sfd, struct sockaddr_in *const addr, int tlen)
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{
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int result;
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#ifndef NO_SIGNALS
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vsio_sigproc_t sigalrm, sigpipe;
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#endif
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size_t size;
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if (tlen < 0) {
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errno = 0;
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for (;;) {
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size = sizeof(struct sockaddr_in);
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result = accept(sfd, (struct sockaddr *) addr, (int *) &size);
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if ((result >= 0) || (errno != EINTR))
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return (result);
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}
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}
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#ifndef NO_SIGNALS
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if (SSetjmp(gNetTimeoutJmp) != 0) {
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alarm(0);
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(void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
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(void) SSignal(SIGPIPE, (sio_sigproc_t) sigpipe);
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errno = ETIMEDOUT;
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return (kTimeoutErr);
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}
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sigalrm = (vsio_sigproc_t) SSignal(SIGALRM, SIOHandler);
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sigpipe = (vsio_sigproc_t) SSignal(SIGPIPE, SIG_IGN);
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alarm((unsigned int) tlen);
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errno = 0;
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do {
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size = sizeof(struct sockaddr_in);
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result = accept(sfd, (struct sockaddr *) addr, (int *) &size);
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} while ((result < 0) && (errno == EINTR));
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alarm(0);
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(void) SSignal(SIGALRM, (sio_sigproc_t) sigalrm);
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(void) SSignal(SIGPIPE, (sio_sigproc_t) sigpipe);
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return (result);
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#else
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return (-1);
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#endif
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} /* SAcceptA */
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