diff options
Diffstat (limited to 'crypto/kerberosIV/lib/kdb/krb_lib.c')
| -rw-r--r-- | crypto/kerberosIV/lib/kdb/krb_lib.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/crypto/kerberosIV/lib/kdb/krb_lib.c b/crypto/kerberosIV/lib/kdb/krb_lib.c new file mode 100644 index 0000000..19bf316 --- /dev/null +++ b/crypto/kerberosIV/lib/kdb/krb_lib.c @@ -0,0 +1,259 @@ +/* + Copyright (C) 1989 by the Massachusetts Institute of Technology + + Export of this software from the United States of America is assumed + to require a specific license from the United States Government. + It is the responsibility of any person or organization contemplating + export to obtain such a license before exporting. + +WITHIN THAT CONSTRAINT, permission to use, copy, modify, and +distribute this software and its documentation for any purpose and +without fee is hereby granted, provided that the above copyright +notice appear in all copies and that both that copyright notice and +this permission notice appear in supporting documentation, and that +the name of M.I.T. not be used in advertising or publicity pertaining +to distribution of the software without specific, written prior +permission. M.I.T. makes no representations about the suitability of +this software for any purpose. It is provided "as is" without express +or implied warranty. + + */ + +#include "kdb_locl.h" + +RCSID("$Id: krb_lib.c,v 1.11 1997/05/07 01:36:08 assar Exp $"); + +#ifdef DEBUG +extern int debug; +extern char *progname; +long kerb_debug; +#endif + +static int init = 0; + +/* + * initialization routine for data base + */ + +int +kerb_init(void) +{ +#ifdef DEBUG + if (!init) { + char *dbg = getenv("KERB_DBG"); + if (dbg) + sscanf(dbg, "%d", &kerb_debug); + init = 1; + } +#endif + kerb_db_init(); + +#ifdef CACHE + kerb_cache_init(); +#endif + + /* successful init, return 0, else errcode */ + return (0); +} + +/* + * finalization routine for database -- NOTE: MUST be called by any + * program using kerb_init. ALSO will have to be modified to finalize + * caches, if they're ever really implemented. + */ + +void +kerb_fini(void) +{ + kerb_db_fini(); +} + + +int +kerb_delete_principal(char *name, char *inst) +{ + int ret; + + if (!init) + kerb_init(); + + ret = kerb_db_delete_principal(name, inst); +#ifdef CACHE + if(ret == 0){ + kerb_cache_delete_principal(name, inst); + } +#endif + return ret; +} + + +/* + * look up a principal in the cache or data base returns number of + * principals found + */ + +int +kerb_get_principal(char *name, char *inst, Principal *principal, + unsigned int max, int *more) + /* could have wild card */ + /* could have wild card */ + + /* max number of name structs to return */ + /* more tuples than room for */ + +{ + int found = 0; +#ifdef CACHE + static int wild = 0; +#endif + if (!init) + kerb_init(); + +#ifdef DEBUG + if (kerb_debug & 1) + fprintf(stderr, "\n%s: kerb_get_principal for %s %s max = %d\n", + progname, name, inst, max); +#endif + + /* + * if this is a request including a wild card, have to go to db + * since the cache may not be exhaustive. + */ + + /* clear the principal area */ + memset(principal, 0, max * sizeof(Principal)); + +#ifdef CACHE + /* + * so check to see if the name contains a wildcard "*" or "?", not + * preceeded by a backslash. + */ + wild = 0; + if (index(name, '*') || index(name, '?') || + index(inst, '*') || index(inst, '?')) + wild = 1; + + if (!wild) { + /* try the cache first */ + found = kerb_cache_get_principal(name, inst, principal, max, more); + if (found) + return (found); + } +#endif + /* If we didn't try cache, or it wasn't there, try db */ + found = kerb_db_get_principal(name, inst, principal, max, more); + /* try to insert principal(s) into cache if it was found */ +#ifdef CACHE + if (found) { + kerb_cache_put_principal(principal, found); + } +#endif + return (found); +} + +/* principals */ +int +kerb_put_principal(Principal *principal, unsigned int n) + + /* number of principal structs to write */ +{ + struct tm *tp; + + /* set mod date */ + principal->mod_date = time((time_t *)0); + /* and mod date string */ + + tp = k_localtime(&principal->mod_date); + snprintf(principal->mod_date_txt, + sizeof(principal->mod_date_txt), + "%4d-%2d-%2d", + tp->tm_year + 1900, + tp->tm_mon + 1, tp->tm_mday); /* January is 0, not 1 */ +#ifdef DEBUG + if (kerb_debug & 1) { + int i; + fprintf(stderr, "\nkerb_put_principal..."); + for (i = 0; i < n; i++) { + krb_print_principal(&principal[i]); + } + } +#endif + /* write database */ + if (kerb_db_put_principal(principal, n) < 0) { +#ifdef DEBUG + if (kerb_debug & 1) + fprintf(stderr, "\n%s: kerb_db_put_principal err", progname); + /* watch out for cache */ +#endif + return -1; + } +#ifdef CACHE + /* write cache */ + if (!kerb_cache_put_principal(principal, n)) { +#ifdef DEBUG + if (kerb_debug & 1) + fprintf(stderr, "\n%s: kerb_cache_put_principal err", progname); +#endif + return -1; + } +#endif + return 0; +} + +int +kerb_get_dba(char *name, char *inst, Dba *dba, unsigned int max, int *more) + /* could have wild card */ + /* could have wild card */ + + /* max number of name structs to return */ + /* more tuples than room for */ + +{ + int found = 0; +#ifdef CACHE + static int wild = 0; +#endif + if (!init) + kerb_init(); + +#ifdef DEBUG + if (kerb_debug & 1) + fprintf(stderr, "\n%s: kerb_get_dba for %s %s max = %d\n", + progname, name, inst, max); +#endif + /* + * if this is a request including a wild card, have to go to db + * since the cache may not be exhaustive. + */ + + /* clear the dba area */ + memset(dba, 0, max * sizeof(Dba)); + +#ifdef CACHE + /* + * so check to see if the name contains a wildcard "*" or "?", not + * preceeded by a backslash. + */ + + wild = 0; + if (index(name, '*') || index(name, '?') || + index(inst, '*') || index(inst, '?')) + wild = 1; + + if (!wild) { + /* try the cache first */ + found = kerb_cache_get_dba(name, inst, dba, max, more); + if (found) + return (found); + } +#endif + /* If we didn't try cache, or it wasn't there, try db */ + found = kerb_db_get_dba(name, inst, dba, max, more); +#ifdef CACHE + /* try to insert dba(s) into cache if it was found */ + if (found) { + kerb_cache_put_dba(dba, found); + } +#endif + return (found); +} |
