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1.8.7

    1: /*
    2:  * Copyright (c) 2013 Todd C. Miller <Todd.Miller@courtesan.com>
    3:  *
    4:  * Permission to use, copy, modify, and distribute this software for any
    5:  * purpose with or without fee is hereby granted, provided that the above
    6:  * copyright notice and this permission notice appear in all copies.
    7:  *
    8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   15:  */
   16: 
   17: #ifndef _COMPAT_NSS_DBDEFS_H
   18: #define _COMPAT_NSS_DBDEFS_H
   19: 
   20: /*
   21:  * Bits of nss_dbdefs.h and nss_common.h needed to implement
   22:  * getgrouplist(3) using nss_search(3).
   23:  *
   24:  * HP-UX does not ship those headers so we need this compatibility header.
   25:  * It may also work on other systems that use a Solaris-derived nsswitch
   26:  * API.
   27:  */
   28: 
   29: #ifdef NEED_HPUX_MUTEX
   30: # include <synch.h>
   31: #endif
   32: 
   33: typedef enum {
   34:     NSS_SUCCESS,
   35:     NSS_NOTFOUND,
   36:     NSS_UNAVAIL
   37: } nss_status_t;
   38: 
   39: typedef struct nss_db_params {
   40:     const char *name;
   41:     const char *config_name;
   42:     const char *default_config;
   43:     unsigned int max_active_per_src;
   44:     unsigned int max_dormant_per_src;  
   45:     int flags;
   46:     void *finders;
   47:     void *private;
   48:     void (*cleanup)(struct nss_db_params *);
   49: } nss_db_params_t;
   50: 
   51: struct nss_groupsbymem {
   52:     const char *username;
   53:     gid_t *gid_array;
   54:     int maxgids;
   55:     int force_slow_way;
   56:     int (*str2ent)(const char *, int, void *, char *, int);
   57:     nss_status_t (*process_cstr)(const char *, int, struct nss_groupsbymem *);
   58:     int numgids;
   59: };
   60: 
   61: typedef struct {
   62:     void *result;	/* group struct to fill in. */
   63:     char *buffer;	/* string buffer for above */
   64:     size_t buflen;	/* string buffer size */
   65: } nss_XbyY_buf_t;
   66: 
   67: typedef struct {
   68:     void *state;	/* really struct nss_db_state * */
   69: #ifdef NEED_HPUX_MUTEX
   70:     lwp_mutex_t lock;
   71: #endif
   72: } nss_db_root_t;
   73: 
   74: #ifdef NEED_HPUX_MUTEX
   75: # define NSS_DB_ROOT_INIT		{ 0, LWP_MUTEX_INITIALIZER }
   76: #else
   77: # define NSS_DB_ROOT_INIT		{ 0 }
   78: #endif
   79: # define DEFINE_NSS_DB_ROOT(name)	nss_db_root_t name = NSS_DB_ROOT_INIT
   80: 
   81: /* Backend function to find all groups a user belongs to for initgroups(). */
   82: #define NSS_DBOP_GROUP_BYMEMBER		6
   83: 
   84: /* str2ent function return values */
   85: #define NSS_STR_PARSE_SUCCESS	0
   86: #define NSS_STR_PARSE_PARSE	1
   87: #define NSS_STR_PARSE_ERANGE	2
   88: 
   89: /* Max length for an /etc/group file line. */
   90: #define NSS_BUFLEN_GROUP		8192
   91: 
   92: /* HP-UX uses an extra underscore for these functions. */
   93: #ifdef HAVE___NSS_INITF_GROUP
   94: # define _nss_initf_group       __nss_initf_group
   95: #endif
   96: #ifdef HAVE___NSS_XBYY_BUF_ALLOC
   97: # define _nss_XbyY_buf_alloc    __nss_XbyY_buf_alloc
   98: # define _nss_XbyY_buf_free     __nss_XbyY_buf_free
   99: #endif
  100: 
  101: typedef void (*nss_db_initf_t)(nss_db_params_t *);
  102: extern nss_status_t nss_search(nss_db_root_t *, nss_db_initf_t, int, void *);
  103: extern nss_XbyY_buf_t *_nss_XbyY_buf_alloc(int, int);
  104: extern void _nss_XbyY_buf_free(nss_XbyY_buf_t *);
  105: 
  106: #endif /* _COMPAT_NSS_DBDEFS_H */