Quentin Smith
37 lines
764 B
C
37 lines
764 B
C
/* ISC license. */
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#include "sysdeps.h"
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#ifdef HASPIPE2
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# define _GNU_SOURCE
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# include <fcntl.h>
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#else
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# include <errno.h>
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#endif
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#include <unistd.h>
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#include "djbunix.h"
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int pipe_internal (int *p, unsigned int flags)
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{
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#ifdef HASPIPE2
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return pipe2(p, ((flags & DJBUNIX_FLAG_COE) ? O_CLOEXEC : 0) | ((flags & DJBUNIX_FLAG_NB) ? O_NONBLOCK : 0)) ;
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#else
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int pi[2] ;
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if (pipe(pi) < 0) return -1 ;
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if (flags & DJBUNIX_FLAG_COE)
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if ((coe(pi[0]) < 0) || (coe(pi[1]) < 0)) goto err ;
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if (flags & DJBUNIX_FLAG_NB)
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if ((ndelay_on(pi[0]) < 0) || (ndelay_on(pi[1]) < 0)) goto err ;
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p[0] = pi[0] ; p[1] = pi[1] ;
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return 0 ;
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err:
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{
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register int e = errno ;
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fd_close(pi[1]) ;
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fd_close(pi[0]) ;
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errno = e ;
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}
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return -1 ;
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#endif
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}
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