From 4ca714aa6a1ece8b78f13440dbb5271b8e9c21d6 Mon Sep 17 00:00:00 2001 From: Manuel Novoa III Date: Mon, 12 Mar 2001 10:04:34 +0000 Subject: Add some missing network functionality; grabbed from libc-5.3.12. --- libc/inet/herror.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 libc/inet/herror.c (limited to 'libc/inet/herror.c') diff --git a/libc/inet/herror.c b/libc/inet/herror.c new file mode 100644 index 000000000..e24d93b3e --- /dev/null +++ b/libc/inet/herror.c @@ -0,0 +1,51 @@ +/* + * Copyright (c) 1987 Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms are permitted + * provided that: (1) source distributions retain this entire copyright + * notice and comment, and (2) distributions including binaries display + * the following acknowledgement: ``This product includes software + * developed by the University of California, Berkeley and its contributors'' + * in the documentation or other materials provided with the distribution + * and in all advertising materials mentioning features or use of this + * software. Neither the name of the University nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. + */ + +#include +#include +#include + +static const char *const h_errlist[] = { + "Error 0", + "Unknown host", /* 1 HOST_NOT_FOUND */ + "Host name lookup failure", /* 2 TRY_AGAIN */ + "Unknown server error", /* 3 NO_RECOVERY */ + "No address associated with name", /* 4 NO_ADDRESS */ +}; +static const int h_nerr = { sizeof(h_errlist)/sizeof(h_errlist[0]) }; + +/* + * herror -- print the error indicated by the h_errno value. + */ +void herror(const char *s) +{ + static const char colon_space[] = ": "; + const char *p; + const char *c; + + c = colon_space; + if (!s || !*s) { + c += 2; + } + p = "Unknown error"; + if ((h_errno >= 0) && (h_errno < h_nerr)) { + p = h_errlist[h_errno]; + } + fprintf(stderr, "%s%s%s\n", s, c, p); +} -- cgit v1.2.3