40 lines
747 B
C
40 lines
747 B
C
#if !defined(lint) && defined(SCCSIDS)
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static char sccsid[] = "@(#)_perror.c 1.1 94/10/31 SMI"; /* from UCB 4.2 83/06/30 */
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#endif
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/*
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* Print the error indicated
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* in the cerror cell.
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*/
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#include <sys/types.h>
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#include <sys/uio.h>
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extern int errno;
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extern int sys_nerr;
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extern char *sys_errlist[];
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extern int strlen();
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extern int writev();
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void
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_perror(s)
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char *s;
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{
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struct iovec iov[4];
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register struct iovec *v = iov;
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if (s && *s) {
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v->iov_base = s;
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v->iov_len = strlen(s);
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v++;
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v->iov_base = ": ";
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v->iov_len = 2;
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v++;
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}
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v->iov_base =
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(unsigned)errno < sys_nerr ? sys_errlist[errno] : "Unknown error";
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v->iov_len = strlen(v->iov_base);
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v++;
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v->iov_base = "\n";
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v->iov_len = 1;
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writev(2, iov, (v - iov) + 1);
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}
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