344 lines
7.9 KiB
C
344 lines
7.9 KiB
C
/*
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* Copyright (c) 1997-2003 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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#ifdef HAVE_CONFIG_H
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#include <config.h>
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RCSID("$Id: afslog.c,v 1.21.2.2 2003/08/25 11:43:51 lha Exp $");
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#endif
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#include <ctype.h>
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#ifdef KRB5
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#include <krb5.h>
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#endif
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#ifdef KRB4
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#include <krb.h>
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#endif
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#include <kafs.h>
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#include <roken.h>
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#include <getarg.h>
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#include <err.h>
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static int help_flag;
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static int version_flag;
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#if 0
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static int create_user;
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#endif
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static getarg_strings cells;
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static char *realm;
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static getarg_strings files;
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static int unlog_flag;
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static int verbose;
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#ifdef KRB4
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static int use_krb4 = 1;
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#endif
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#ifdef KRB5
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static int use_krb5 = 1;
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#endif
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struct getargs args[] = {
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{ "cell", 'c', arg_strings, &cells, "cells to get tokens for", "cell" },
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{ "file", 'p', arg_strings, &files, "files to get tokens for", "path" },
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{ "realm", 'k', arg_string, &realm, "realm for afs cell", "realm" },
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{ "unlog", 'u', arg_flag, &unlog_flag, "remove tokens" },
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#ifdef KRB4
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{ "v4", 0, arg_negative_flag, &use_krb4, "use Kerberos 4" },
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#endif
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#ifdef KRB5
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{ "v5", 0, arg_negative_flag, &use_krb5, "use Kerberos 5" },
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#endif
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#if 0
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{ "create-user", 0, arg_flag, &create_user, "create user if not found" },
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#endif
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{ "verbose",'v', arg_flag, &verbose },
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{ "version", 0, arg_flag, &version_flag },
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{ "help", 'h', arg_flag, &help_flag },
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};
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static int num_args = sizeof(args) / sizeof(args[0]);
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#ifdef KRB5
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krb5_context context;
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krb5_ccache id;
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#endif
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static const char *
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expand_one_file(FILE *f, const char *cell)
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{
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static char buf[1024];
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char *p;
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while (fgets (buf, sizeof(buf), f) != NULL) {
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if(buf[0] == '>') {
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for(p = buf; *p && !isspace((unsigned char)*p) && *p != '#'; p++)
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;
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*p = '\0';
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if(strncmp(buf + 1, cell, strlen(cell)) == 0)
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return buf + 1;
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}
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buf[0] = '\0';
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}
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return NULL;
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}
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static const char *
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expand_cell_name(const char *cell)
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{
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FILE *f;
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const char *c;
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const char **fn, *files[] = { _PATH_CELLSERVDB,
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_PATH_ARLA_CELLSERVDB,
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_PATH_OPENAFS_DEBIAN_CELLSERVDB,
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_PATH_ARLA_DEBIAN_CELLSERVDB,
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NULL };
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for(fn = files; *fn; fn++) {
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f = fopen(*fn, "r");
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if(f == NULL)
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continue;
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c = expand_one_file(f, cell);
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fclose(f);
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if(c)
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return c;
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}
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return cell;
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}
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#if 0
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static int
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createuser (char *cell)
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{
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char cellbuf[64];
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char name[ANAME_SZ];
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char instance[INST_SZ];
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char realm[REALM_SZ];
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char cmd[1024];
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if (cell == NULL) {
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FILE *f;
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int len;
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f = fopen (_PATH_THISCELL, "r");
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if (f == NULL)
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err (1, "open(%s)", _PATH_THISCELL);
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if (fgets (cellbuf, sizeof(cellbuf), f) == NULL)
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err (1, "read cellname from %s", _PATH_THISCELL);
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len = strlen(cellbuf);
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if (cellbuf[len-1] == '\n')
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cellbuf[len-1] = '\0';
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cell = cellbuf;
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}
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if(krb_get_default_principal(name, instance, realm))
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errx (1, "Could not even figure out who you are");
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snprintf (cmd, sizeof(cmd),
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"pts createuser %s%s%s@%s -cell %s",
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name, *instance ? "." : "", instance, strlwr(realm),
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cell);
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DEBUG("Executing %s", cmd);
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return system(cmd);
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}
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#endif
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static void
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usage(int ecode)
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{
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arg_printusage(args, num_args, NULL, "[cell|path]...");
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exit(ecode);
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}
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struct cell_list {
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char *cell;
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struct cell_list *next;
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} *cell_list;
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static int
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afslog_cell(const char *cell, int expand)
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{
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struct cell_list *p, **q;
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const char *c = cell;
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if(expand){
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c = expand_cell_name(cell);
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if(c == NULL){
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warnx("No cell matching \"%s\" found.", cell);
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return -1;
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}
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if(verbose && strcmp(c, cell) != 0)
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warnx("Cell \"%s\" expanded to \"%s\"", cell, c);
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}
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/* add to list of cells to get tokens for, and also remove
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duplicates; the actual afslog takes place later */
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for(p = cell_list, q = &cell_list; p; q = &p->next, p = p->next)
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if(strcmp(p->cell, c) == 0)
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return 0;
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p = malloc(sizeof(*p));
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if(p == NULL)
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return -1;
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p->cell = strdup(c);
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if(p->cell == NULL) {
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free(p);
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return -1;
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}
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p->next = NULL;
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*q = p;
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return 0;
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}
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static int
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afslog_file(const char *path)
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{
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char cell[64];
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if(k_afs_cell_of_file(path, cell, sizeof(cell))){
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warnx("No cell found for file \"%s\".", path);
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return -1;
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}
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if(verbose)
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warnx("File \"%s\" lives in cell \"%s\"", path, cell);
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return afslog_cell(cell, 0);
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}
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static int
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do_afslog(const char *cell)
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{
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int k5ret, k4ret;
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k5ret = k4ret = 0;
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#ifdef KRB5
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if(context != NULL && id != NULL && use_krb5) {
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k5ret = krb5_afslog(context, id, cell, NULL);
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if(k5ret == 0)
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return 0;
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}
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#endif
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#if KRB4
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if (use_krb4) {
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k4ret = krb_afslog(cell, NULL);
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if(k4ret == 0)
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return 0;
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}
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#endif
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if (cell == NULL)
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cell = "<default cell>";
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#ifdef KRB5
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if (k5ret)
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warnx("krb5_afslog(%s): %s", cell, krb5_get_err_text(context, k5ret));
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#endif
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#ifdef KRB4
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if (k4ret)
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warnx("krb_afslog(%s): %s", cell, krb_get_err_text(k4ret));
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#endif
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if (k5ret || k4ret)
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return 1;
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return 0;
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}
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static void
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log_func(void *ctx, const char *str)
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{
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fprintf(stderr, "%s\n", str);
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}
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int
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main(int argc, char **argv)
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{
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int optind = 0;
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int i;
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int num;
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int ret = 0;
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int failed = 0;
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struct cell_list *p;
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setprogname(argv[0]);
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if(getarg(args, num_args, argc, argv, &optind))
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usage(1);
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if(help_flag)
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usage(0);
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if(version_flag) {
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print_version(NULL);
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exit(0);
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}
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if(!k_hasafs())
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errx(1, "AFS does not seem to be present on this machine");
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if(unlog_flag){
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k_unlog();
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exit(0);
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}
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#ifdef KRB5
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ret = krb5_init_context(&context);
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if (ret)
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context = NULL;
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else
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if(krb5_cc_default(context, &id) != 0)
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id = NULL;
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#endif
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if (verbose)
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kafs_set_verbose(log_func, NULL);
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num = 0;
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for(i = 0; i < files.num_strings; i++){
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afslog_file(files.strings[i]);
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num++;
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}
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free_getarg_strings (&files);
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for(i = 0; i < cells.num_strings; i++){
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afslog_cell(cells.strings[i], 1);
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num++;
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}
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free_getarg_strings (&cells);
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for(i = optind; i < argc; i++){
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num++;
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if(strcmp(argv[i], ".") == 0 ||
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strcmp(argv[i], "..") == 0 ||
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strchr(argv[i], '/') ||
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access(argv[i], F_OK) == 0)
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afslog_file(argv[i]);
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else
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afslog_cell(argv[i], 1);
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}
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if(num == 0) {
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if(do_afslog(NULL))
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failed++;
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} else
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for(p = cell_list; p; p = p->next) {
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if(verbose)
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warnx("Getting tokens for cell \"%s\"", p->cell);
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if(do_afslog(p->cell))
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failed++;
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}
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return failed;
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}
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