diff options
Diffstat (limited to 'eBones/usr.sbin/ext_srvtab/ext_srvtab.c')
| -rw-r--r-- | eBones/usr.sbin/ext_srvtab/ext_srvtab.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/eBones/usr.sbin/ext_srvtab/ext_srvtab.c b/eBones/usr.sbin/ext_srvtab/ext_srvtab.c new file mode 100644 index 0000000..3a5dcec --- /dev/null +++ b/eBones/usr.sbin/ext_srvtab/ext_srvtab.c @@ -0,0 +1,164 @@ +/* + * Copyright 1987, 1988 by the Massachusetts Institute of Technology. + * + * from: ext_srvtab.c,v 4.1 89/07/18 16:49:30 jtkohl Exp $ + * $Id: ext_srvtab.c,v 1.2 1994/07/19 19:22:36 g89r4222 Exp $ + */ + +#ifndef lint +static char rcsid[] = +"$Id: ext_srvtab.c,v 1.2 1994/07/19 19:22:36 g89r4222 Exp $"; +#endif lint + +#include <stdio.h> +#include <sys/file.h> +#include <sys/types.h> +#include <sys/time.h> +#include <sys/stat.h> +#include <sys/wait.h> +#include <signal.h> +#include <des.h> +#include <krb.h> +#include <krb_db.h> + +#define TRUE 1 +#define FALSE 0 + +static C_Block master_key; +static C_Block session_key; +static Key_schedule master_key_schedule; +char progname[] = "ext_srvtab"; +char realm[REALM_SZ]; + +main(argc, argv) + int argc; + char *argv[]; +{ + FILE *fout; + char fname[1024]; + int fopen_errs = 0; + int arg; + Principal princs[40]; + int more; + int prompt = TRUE; + register int n, i; + + bzero(realm, sizeof(realm)); + + /* Parse commandline arguments */ + if (argc < 2) + usage(); + else { + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-n") == 0) + prompt = FALSE; + else if (strcmp(argv[i], "-r") == 0) { + if (++i >= argc) + usage(); + else { + strcpy(realm, argv[i]); + /* + * This is to humor the broken way commandline + * argument parsing is done. Later, this + * program ignores everything that starts with -. + */ + argv[i][0] = '-'; + } + } + else if (argv[i][0] == '-') + usage(); + else + if (!k_isinst(argv[i])) { + fprintf(stderr, "%s: bad instance name: %s\n", + progname, argv[i]); + usage(); + } + } + } + + if (kdb_get_master_key (prompt, master_key, master_key_schedule) != 0) { + fprintf (stderr, "Couldn't read master key.\n"); + fflush (stderr); + exit(1); + } + + if (kdb_verify_master_key (master_key, master_key_schedule, stderr) < 0) { + exit(1); + } + + /* For each arg, search for instances of arg, and produce */ + /* srvtab file */ + if (!realm[0]) + if (krb_get_lrealm(realm, 1) != KSUCCESS) { + fprintf(stderr, "%s: couldn't get local realm\n", progname); + exit(1); + } + (void) umask(077); + + for (arg = 1; arg < argc; arg++) { + if (argv[arg][0] == '-') + continue; + sprintf(fname, "%s-new-srvtab", argv[arg]); + if ((fout = fopen(fname, "w")) == NULL) { + fprintf(stderr, "Couldn't create file '%s'.\n", fname); + fopen_errs++; + continue; + } + printf("Generating '%s'....\n", fname); + n = kerb_get_principal("*", argv[arg], &princs[0], 40, &more); + if (more) + fprintf(stderr, "More than 40 found...\n"); + for (i = 0; i < n; i++) { + FWrite(princs[i].name, strlen(princs[i].name) + 1, 1, fout); + FWrite(princs[i].instance, strlen(princs[i].instance) + 1, + 1, fout); + FWrite(realm, strlen(realm) + 1, 1, fout); + FWrite(&princs[i].key_version, + sizeof(princs[i].key_version), 1, fout); + bcopy(&princs[i].key_low, session_key, sizeof(long)); + bcopy(&princs[i].key_high, session_key + sizeof(long), + sizeof(long)); + kdb_encrypt_key (session_key, session_key, + master_key, master_key_schedule, DES_DECRYPT); + FWrite(session_key, sizeof session_key, 1, fout); + } + fclose(fout); + } + + StampOutSecrets(); + + exit(fopen_errs); /* 0 errors if successful */ + +} + +Die() +{ + StampOutSecrets(); + exit(1); +} + +FWrite(p, size, n, f) + char *p; + int size; + int n; + FILE *f; +{ + if (fwrite(p, size, n, f) != n) { + printf("Error writing output file. Terminating.\n"); + Die(); + } +} + +StampOutSecrets() +{ + bzero(master_key, sizeof master_key); + bzero(session_key, sizeof session_key); + bzero(master_key_schedule, sizeof master_key_schedule); +} + +usage() +{ + fprintf(stderr, + "Usage: %s [-n] [-r realm] instance [instance ...]\n", progname); + exit(1); +} |
