22 lines
434 B
C
22 lines
434 B
C
#include "timeoutread.h"
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#include "select.h"
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#include "error.h"
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#include "readwrite.h"
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int timeoutread(t,fd,buf,len) int t; int fd; char *buf; int len;
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{
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fd_set rfds;
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struct timeval tv;
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tv.tv_sec = t;
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tv.tv_usec = 0;
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FD_ZERO(&rfds);
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FD_SET(fd,&rfds);
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if (select(fd + 1,&rfds,(fd_set *) 0,(fd_set *) 0,&tv) == -1) return -1;
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if (FD_ISSET(fd,&rfds)) return read(fd,buf,len);
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errno = error_timeout;
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return -1;
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}
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