62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*++
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/* NAME
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/* inet_util 3
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/* SUMMARY
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/* INET-domain utilities
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/* SYNOPSIS
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/* #include <inet_util.h>
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/*
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/* char *inet_parse(addr, hostp, portp)
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/* const char *addr;
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/* char **hostp;
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/* char **portp;
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/* DESCRIPTION
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/* This module implements various support routines for
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/* dealing with AF_INET connections, addresses etc.
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/*
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/* inet_parse() takes an address of the form host:port and
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/* breaks it up into its constituent parts. The resulting
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/* host information is an empty string when the address
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/* contains no host part or no host: part. inet_parse()
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/* returns a pointer to memory that it has allocated for
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/* string storage. The caller should pass the host to the
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/* myfree() function when the storage is no longer needed.
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/* DIAGNOSTICS
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/* Fatal errors: invalid address or host forms.
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/* LICENSE
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/* .ad
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/* .fi
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/* The Secure Mailer license must be distributed with this software.
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/* AUTHOR(S)
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/* Wietse Venema
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/* IBM T.J. Watson Research
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/* P.O. Box 704
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/* Yorktown Heights, NY 10598, USA
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/*--*/
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/* System libraries. */
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#include <sys_defs.h>
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/* Utility library. */
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#include "mymalloc.h"
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#include "split_at.h"
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#include "inet_util.h"
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/* inet_parse - parse host:port address spec */
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char *inet_parse(const char *addr, char **hostp, char **portp)
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{
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char *buf;
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buf = mystrdup(addr);
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if ((*portp = split_at_right(buf, ':')) != 0) {
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*hostp = buf;
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} else {
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*portp = buf;
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*hostp = ""; /* XXX bogus -- string constants not writeable */
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}
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return (buf);
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}
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