ae77177087
several new kerberos related libraries and applications to FreeBSD: o kgetcred(1) allows one to manually get a ticket for a particular service. o kf(1) securily forwards ticket to another host through an authenticated and encrypted stream. o kcc(1) is an umbrella program around klist(1), kswitch(1), kgetcred(1) and other user kerberos operations. klist and kswitch are just symlinks to kcc(1) now. o kswitch(1) allows you to easily switch between kerberos credentials if you're running KCM. o hxtool(1) is a certificate management tool to use with PKINIT. o string2key(1) maps a password into key. o kdigest(8) is a userland tool to access the KDC's digest interface. o kimpersonate(8) creates a "fake" ticket for a service. We also now install manpages for some lirbaries that were not installed before, libheimntlm and libhx509. - The new HEIMDAL version no longer supports Kerberos 4. All users are recommended to switch to Kerberos 5. - Weak ciphers are now disabled by default. To enable DES support (used by telnet(8)), use "allow_weak_crypto" option in krb5.conf. - libtelnet, pam_ksu and pam_krb5 are now compiled with error on warnings disabled due to the function they use (krb5_get_err_text(3)) being deprecated. I plan to work on this next. - Heimdal's KDC now require sqlite to operate. We use the bundled version and install it as libheimsqlite. If some other FreeBSD components will require it in the future we can rename it to libbsdsqlite and use for these components as well. - This is not a latest Heimdal version, the new one was released while I was working on the update. I will update it to 1.5.2 soon, as it fixes some important bugs and security issues.
396 lines
8.8 KiB
C
396 lines
8.8 KiB
C
/*
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* Copyright (c) 1995 - 2006 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <config.h>
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#include "sl_locl.h"
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#include <setjmp.h>
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static void
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mandoc_template(SL_cmd *cmds,
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const char *extra_string)
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{
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SL_cmd *c, *prev;
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char timestr[64], cmd[64];
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const char *p;
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time_t t;
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printf(".\\\" Things to fix:\n");
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printf(".\\\" * correct section, and operating system\n");
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printf(".\\\" * remove Op from mandatory flags\n");
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printf(".\\\" * use better macros for arguments (like .Pa for files)\n");
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printf(".\\\"\n");
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t = time(NULL);
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strftime(timestr, sizeof(timestr), "%b %d, %Y", localtime(&t));
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printf(".Dd %s\n", timestr);
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p = strrchr(getprogname(), '/');
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if(p) p++; else p = getprogname();
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strncpy(cmd, p, sizeof(cmd));
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cmd[sizeof(cmd)-1] = '\0';
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strupr(cmd);
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printf(".Dt %s SECTION\n", cmd);
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printf(".Os OPERATING_SYSTEM\n");
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printf(".Sh NAME\n");
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printf(".Nm %s\n", p);
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printf(".Nd\n");
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printf("in search of a description\n");
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printf(".Sh SYNOPSIS\n");
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printf(".Nm\n");
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for(c = cmds; c->name; ++c) {
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/* if (c->func == NULL)
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continue; */
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printf(".Op Fl %s", c->name);
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printf("\n");
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}
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if (extra_string && *extra_string)
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printf (".Ar %s\n", extra_string);
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printf(".Sh DESCRIPTION\n");
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printf("Supported options:\n");
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printf(".Bl -tag -width Ds\n");
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prev = NULL;
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for(c = cmds; c->name; ++c) {
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if (c->func) {
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if (prev)
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printf ("\n%s\n", prev->usage);
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printf (".It Fl %s", c->name);
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prev = c;
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} else
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printf (", %s\n", c->name);
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}
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if (prev)
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printf ("\n%s\n", prev->usage);
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printf(".El\n");
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printf(".\\\".Sh ENVIRONMENT\n");
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printf(".\\\".Sh FILES\n");
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printf(".\\\".Sh EXAMPLES\n");
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printf(".\\\".Sh DIAGNOSTICS\n");
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printf(".\\\".Sh SEE ALSO\n");
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printf(".\\\".Sh STANDARDS\n");
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printf(".\\\".Sh HISTORY\n");
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printf(".\\\".Sh AUTHORS\n");
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printf(".\\\".Sh BUGS\n");
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}
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SL_cmd *
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sl_match (SL_cmd *cmds, char *cmd, int exactp)
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{
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SL_cmd *c, *current = NULL, *partial_cmd = NULL;
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int partial_match = 0;
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for (c = cmds; c->name; ++c) {
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if (c->func)
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current = c;
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if (strcmp (cmd, c->name) == 0)
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return current;
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else if (strncmp (cmd, c->name, strlen(cmd)) == 0 &&
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partial_cmd != current) {
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++partial_match;
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partial_cmd = current;
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}
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}
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if (partial_match == 1 && !exactp)
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return partial_cmd;
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else
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return NULL;
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}
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void
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sl_help (SL_cmd *cmds, int argc, char **argv)
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{
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SL_cmd *c, *prev_c;
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if (getenv("SLMANDOC")) {
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mandoc_template(cmds, NULL);
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return;
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}
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if (argc == 1) {
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prev_c = NULL;
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for (c = cmds; c->name; ++c) {
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if (c->func) {
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if(prev_c)
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printf ("\n\t%s%s", prev_c->usage ? prev_c->usage : "",
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prev_c->usage ? "\n" : "");
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prev_c = c;
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printf ("%s", c->name);
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} else
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printf (", %s", c->name);
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}
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if(prev_c)
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printf ("\n\t%s%s", prev_c->usage ? prev_c->usage : "",
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prev_c->usage ? "\n" : "");
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} else {
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c = sl_match (cmds, argv[1], 0);
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if (c == NULL)
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printf ("No such command: %s. "
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"Try \"help\" for a list of all commands\n",
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argv[1]);
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else {
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printf ("%s\t%s\n", c->name, c->usage);
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if(c->help && *c->help)
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printf ("%s\n", c->help);
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if((++c)->name && c->func == NULL) {
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printf ("Synonyms:");
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while (c->name && c->func == NULL)
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printf ("\t%s", (c++)->name);
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printf ("\n");
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}
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}
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}
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}
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#ifdef HAVE_READLINE
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char *readline(char *prompt);
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void add_history(char *p);
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#else
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static char *
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readline(char *prompt)
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{
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char buf[BUFSIZ];
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printf ("%s", prompt);
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fflush (stdout);
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if(fgets(buf, sizeof(buf), stdin) == NULL)
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return NULL;
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buf[strcspn(buf, "\r\n")] = '\0';
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return strdup(buf);
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}
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static void
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add_history(char *p)
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{
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}
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#endif
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int
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sl_command(SL_cmd *cmds, int argc, char **argv)
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{
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SL_cmd *c;
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c = sl_match (cmds, argv[0], 0);
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if (c == NULL)
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return -1;
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return (*c->func)(argc, argv);
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}
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struct sl_data {
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int max_count;
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char **ptr;
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};
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int
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sl_make_argv(char *line, int *ret_argc, char ***ret_argv)
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{
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char *p, *begining;
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int argc, nargv;
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char **argv;
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int quote = 0;
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nargv = 10;
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argv = malloc(nargv * sizeof(*argv));
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if(argv == NULL)
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return ENOMEM;
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argc = 0;
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p = line;
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while(isspace((unsigned char)*p))
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p++;
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begining = p;
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while (1) {
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if (*p == '\0') {
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;
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} else if (*p == '"') {
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quote = !quote;
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memmove(&p[0], &p[1], strlen(&p[1]) + 1);
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continue;
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} else if (*p == '\\') {
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if (p[1] == '\0')
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goto failed;
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memmove(&p[0], &p[1], strlen(&p[1]) + 1);
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p += 2;
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continue;
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} else if (quote || !isspace((unsigned char)*p)) {
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p++;
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continue;
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} else
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*p++ = '\0';
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if (quote)
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goto failed;
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if(argc == nargv - 1) {
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char **tmp;
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nargv *= 2;
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tmp = realloc (argv, nargv * sizeof(*argv));
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if (tmp == NULL) {
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free(argv);
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return ENOMEM;
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}
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argv = tmp;
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}
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argv[argc++] = begining;
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while(isspace((unsigned char)*p))
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p++;
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if (*p == '\0')
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break;
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begining = p;
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}
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argv[argc] = NULL;
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*ret_argc = argc;
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*ret_argv = argv;
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return 0;
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failed:
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free(argv);
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return ERANGE;
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}
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static jmp_buf sl_jmp;
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static void sl_sigint(int sig)
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{
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longjmp(sl_jmp, 1);
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}
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static char *sl_readline(const char *prompt)
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{
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char *s;
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void (*old)(int);
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old = signal(SIGINT, sl_sigint);
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if(setjmp(sl_jmp))
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printf("\n");
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s = readline(rk_UNCONST(prompt));
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signal(SIGINT, old);
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return s;
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}
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/* return values:
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* 0 on success,
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* -1 on fatal error,
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* -2 if EOF, or
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* return value of command */
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int
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sl_command_loop(SL_cmd *cmds, const char *prompt, void **data)
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{
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int ret = 0;
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char *buf;
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int argc;
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char **argv;
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buf = sl_readline(prompt);
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if(buf == NULL)
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return -2;
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if(*buf)
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add_history(buf);
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ret = sl_make_argv(buf, &argc, &argv);
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if(ret) {
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fprintf(stderr, "sl_loop: out of memory\n");
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free(buf);
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return -1;
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}
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if (argc >= 1) {
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ret = sl_command(cmds, argc, argv);
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if(ret == -1) {
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printf ("Unrecognized command: %s\n", argv[0]);
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ret = 0;
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}
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}
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free(buf);
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free(argv);
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return ret;
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}
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int
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sl_loop(SL_cmd *cmds, const char *prompt)
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{
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void *data = NULL;
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int ret;
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while((ret = sl_command_loop(cmds, prompt, &data)) >= 0)
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;
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return ret;
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}
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void
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sl_apropos (SL_cmd *cmd, const char *topic)
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{
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for (; cmd->name != NULL; ++cmd)
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if (cmd->usage != NULL && strstr(cmd->usage, topic) != NULL)
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printf ("%-20s%s\n", cmd->name, cmd->usage);
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}
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/*
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* Help to be used with slc.
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*/
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void
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sl_slc_help (SL_cmd *cmds, int argc, char **argv)
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{
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if(argc == 0) {
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sl_help(cmds, 1, argv - 1 /* XXX */);
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} else {
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SL_cmd *c = sl_match (cmds, argv[0], 0);
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if(c == NULL) {
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fprintf (stderr, "No such command: %s. "
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"Try \"help\" for a list of commands\n",
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argv[0]);
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} else {
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if(c->func) {
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static char help[] = "--help";
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char *fake[3];
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fake[0] = argv[0];
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fake[1] = help;
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fake[2] = NULL;
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(*c->func)(2, fake);
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fprintf(stderr, "\n");
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}
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if(c->help && *c->help)
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fprintf (stderr, "%s\n", c->help);
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if((++c)->name && c->func == NULL) {
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int f = 0;
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fprintf (stderr, "Synonyms:");
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while (c->name && c->func == NULL) {
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fprintf (stderr, "%s%s", f ? ", " : " ", (c++)->name);
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f = 1;
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}
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fprintf (stderr, "\n");
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}
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}
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}
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}
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