85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
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* Copyright (c) 2019 Todd C. Miller <Todd.Miller@courtesan.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include <sys/types.h>
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#ifdef HAVE_STDBOOL_H
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# include <stdbool.h>
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#else
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# include "compat/stdbool.h"
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#endif /* HAVE_STDBOOL_H */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "sudo_gettext.h" /* must be included before sudo_compat.h */
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#include "sudo_compat.h"
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#include "sudo_debug.h"
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#include "sudo_util.h"
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/*
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* Parse a string in the form host[:port] where host can also be
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* an IPv4 address or an IPv6 address in square brackets.
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* Fills in hostp and portp which may point within str, which is modified.
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*/
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bool
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sudo_parse_host_port_v1(char *str, char **hostp, char **portp, char *defport)
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{
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char *port, *host = str;
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bool ret = false;
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debug_decl(sudo_parse_host_port, SUDO_DEBUG_UTIL);
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/* Check for IPv6 address like [::0] followed by optional port */
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if (*host == '[') {
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host++;
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port = strchr(host, ']');
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if (port == NULL) {
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sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,
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"invalid IPv6 address %s", str);
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goto done;
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}
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*port++ = '\0';
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if (*port == ':') {
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port++;
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} else if (*port == '\0') {
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port = NULL; /* no port specified */
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} else {
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sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_LINENO,
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"invalid IPv6 address %s", str);
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goto done;
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}
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} else {
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port = strrchr(host, ':');
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if (port != NULL)
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*port++ = '\0';
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}
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if (port == NULL)
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port = defport;
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else if (*port == '\0')
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goto done;
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*hostp = host;
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*portp = port;
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ret = true;
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done:
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debug_return_bool(ret);
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}
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