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freebsd/usr.bin/compile_et/perror.c
Geoff Rehmet 60643d379b Initial import of eBones.
(Including all changes for FreeBSD - importing the original eBones distribution
would be too complex at this stage, since I don't have access to Piero's 
CVS.)
(If you want to include eBones in your system, don't forget to include
MAKE_EBONES in /etc/make.conf.)
(This stuff is now also suppable from braae.ru.ac.za.)

Bones originally from MIT SIPB.
Original port to FreeBSD 1.x  by Piero Serini.
Moved to FreeBSD 2.0 by Doug Rabson and Geoff Rehmet.
Nice bug fixes from Doug Rabson.
1994-09-30 14:50:09 +00:00

77 lines
1.4 KiB
C

/*
* Copyright 1987 by MIT Student Information Processing Board
* For copyright info, see Copyright.SIPB
*
* $Id: perror.c,v 1.2 1994/07/19 19:21:30 g89r4222 Exp $
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/uio.h>
#include "error_table.h"
typedef int (*int_func)();
#if defined(mips) && defined(ultrix)
int errno; /* this is needed to keep the loader from complaining */
#endif
int_func com_err_hook = (int_func) NULL;
char *error_message();
void
com_err(whoami, code, message)
char *whoami;
int code;
char *message;
{
struct iovec strings[6];
if (com_err_hook) {
(*com_err_hook)(whoami, code, message);
return;
}
strings[0].iov_base = whoami;
strings[0].iov_len = strlen(whoami);
if (whoami) {
strings[1].iov_base = ": ";
strings[1].iov_len = 2;
} else
strings[1].iov_len = 0;
if (code) {
register char *errmsg = error_message(code);
strings[2].iov_base = errmsg;
strings[2].iov_len = strlen(errmsg);
} else
strings[2].iov_len = 0;
strings[3].iov_base = " ";
strings[3].iov_len = 1;
strings[4].iov_base = message;
strings[4].iov_len = strlen(message);
strings[5].iov_base = "\n";
strings[5].iov_len = 1;
(void) writev(2, strings, 6);
}
int_func
set_com_err_hook(new_proc)
int_func new_proc;
{
register int_func x = com_err_hook;
com_err_hook = new_proc;
return (x);
}
reset_com_err_hook()
{
com_err_hook = (int_func) NULL;
}
void
perror(msg)
register const char *msg;
{
com_err(msg, errno, (char *)NULL);
}