diff options
Diffstat (limited to 'appl/afsutil/pagsh.c')
| -rw-r--r-- | appl/afsutil/pagsh.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/appl/afsutil/pagsh.c b/appl/afsutil/pagsh.c new file mode 100644 index 0000000..d975fad --- /dev/null +++ b/appl/afsutil/pagsh.c @@ -0,0 +1,239 @@ +/* + * Copyright (c) 1995 - 2005 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute 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 BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +RCSID("$Id: pagsh.c 14574 2005-02-12 14:23:28Z lha $"); + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#include <time.h> +#ifdef HAVE_FCNTL_H +#include <fcntl.h> +#endif +#ifdef HAVE_PWD_H +#include <pwd.h> +#endif + +#ifdef KRB5 +#include <krb5.h> +#endif +#ifdef KRB4 +#include <krb.h> +#endif +#include <kafs.h> + +#include <err.h> +#include <roken.h> +#include <getarg.h> + +#ifndef TKT_ROOT +#define TKT_ROOT "/tmp/tkt" +#endif + +static int help_flag; +static int version_flag; +static int c_flag; +#ifdef KRB5 +static char *typename_arg; +#endif + +struct getargs getargs[] = { + { NULL, 'c', arg_flag, &c_flag }, +#ifdef KRB5 + { "cache-type", 0, arg_string, &typename_arg }, +#endif + { "version", 0, arg_flag, &version_flag }, + { "help", 'h', arg_flag, &help_flag }, +}; + +static int num_args = sizeof(getargs) / sizeof(getargs[0]); + +static void +usage(int ecode) +{ + arg_printusage(getargs, num_args, NULL, "command [args...]"); + exit(ecode); +} + +/* + * Run command with a new ticket file / credentials cache / token + */ + +int +main(int argc, char **argv) +{ + int f; + char tf[1024]; + char *p; + + char *path; + char **args; + int i; + int optind = 0; + + setprogname(argv[0]); + if(getarg(getargs, num_args, argc, argv, &optind)) + usage(1); + if(help_flag) + usage(0); + if(version_flag) { + print_version(NULL); + exit(0); + } + + argc -= optind; + argv += optind; + +#ifdef KRB5 + { + const krb5_cc_ops *type; + krb5_error_code ret; + krb5_context context; + krb5_ccache id; + const char *name; + + ret = krb5_init_context(&context); + if (ret) /* XXX should this really call exit ? */ + errx(1, "no kerberos 5 support"); + + if (typename_arg == NULL) { + char *s; + + name = krb5_cc_default_name(context); + if (name == NULL) + krb5_errx(context, 1, "Failed getting default " + "credential cache type"); + + typename_arg = strdup(name); + if (typename_arg == NULL) + errx(1, "strdup"); + + s = strchr(typename_arg, ':'); + if (s) + *s = '\0'; + } + + type = krb5_cc_get_prefix_ops(context, typename_arg); + if (type == NULL) + krb5_err(context, 1, ret, "Failed getting ops for %s " + "credential cache", typename_arg); + + ret = krb5_cc_gen_new(context, type, &id); + if (ret) + krb5_err(context, 1, ret, "Failed generating credential cache"); + + name = krb5_cc_get_name(context, id); + if (name == NULL) + krb5_errx(context, 1, "Generated credential cache have no name"); + + snprintf(tf, sizeof(tf), "%s:%s", typename_arg, name); + + ret = krb5_cc_close(context, id); + if (ret) + krb5_err(context, 1, ret, "Failed closing credential cache"); + + krb5_free_context(context); + + esetenv("KRB5CCNAME", tf, 1); + } +#endif + + snprintf (tf, sizeof(tf), "%s_XXXXXX", TKT_ROOT); + f = mkstemp (tf); + if (f < 0) + err(1, "mkstemp failed"); + close (f); + unlink (tf); + esetenv("KRBTKFILE", tf, 1); + + i = 0; + + args = (char **) malloc((argc + 10)*sizeof(char *)); + if (args == NULL) + errx (1, "Out of memory allocating %lu bytes", + (unsigned long)((argc + 10)*sizeof(char *))); + + if(*argv == NULL) { + path = getenv("SHELL"); + if(path == NULL){ + struct passwd *pw = k_getpwuid(geteuid()); + path = strdup(pw->pw_shell); + } + } else { + path = strdup(*argv++); + } + if (path == NULL) + errx (1, "Out of memory copying path"); + + p=strrchr(path, '/'); + if(p) + args[i] = strdup(p+1); + else + args[i] = strdup(path); + + if (args[i++] == NULL) + errx (1, "Out of memory copying arguments"); + + while(*argv) + args[i++] = *argv++; + + args[i++] = NULL; + + if(k_hasafs()) + k_setpag(); + + unsetenv("PAGPID"); + execvp(path, args); + if (errno == ENOENT || c_flag) { + char **sh_args = malloc ((i + 2) * sizeof(char *)); + int j; + + if (sh_args == NULL) + errx (1, "Out of memory copying sh arguments"); + for (j = 1; j < i; ++j) + sh_args[j + 2] = args[j]; + sh_args[0] = "sh"; + sh_args[1] = "-c"; + sh_args[2] = path; + execv ("/bin/sh", sh_args); + } + err (1, "execvp"); +} |
