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49 lines
981 B
49 lines
981 B
/*
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* Copyright (c) 1980 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)perror.c 5.2 (Berkeley) 3/9/86";
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#endif LIBC_SCCS and not lint
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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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#ifdef linux
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#include <string.h>
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extern char *strerror(int n);
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extern int writev(int handle, struct iovec *iov, int count);
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#endif
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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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void
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perror(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 = strerror (errno);
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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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(void) writev(2, iov, (v - iov) + 1);
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}
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