/* protocols.c - NSS lookup functions for protocol database Copyright (C) 2006 West Consulting Copyright (C) 2006, 2007, 2008, 2010 Arthur de Jong Copyright (C) 2010 Symas Corporation This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #include #include #include "prototypes.h" #include "common.h" #include "compat/attrs.h" /* read a single protocol entry from the stream */ static nss_status_t read_protoent( TFILE *fp,struct protoent *result, char *buffer,size_t buflen,int *errnop) { int32_t tmpint32,tmp2int32,tmp3int32; size_t bufptr=0; READ_BUF_STRING(fp,result->p_name); READ_BUF_STRINGLIST(fp,result->p_aliases); READ_INT32(fp,result->p_proto); return NSS_STATUS_SUCCESS; } #ifdef NSS_FLAVOUR_GLIBC /* get a protocol entry by name */ nss_status_t _nss_ldap_getprotobyname_r( const char *name,struct protoent *result, char *buffer,size_t buflen,int *errnop) { NSS_BYNAME(NSLCD_ACTION_PROTOCOL_BYNAME,buffer,buflen, name, read_protoent(fp,result,buffer,buflen,errnop)); return retv; } /* get a protocol entry by number */ nss_status_t _nss_ldap_getprotobynumber_r( int number,struct protoent *result, char *buffer,size_t buflen,int *errnop) { NSS_BYINT32(NSLCD_ACTION_PROTOCOL_BYNUMBER,buffer,buflen, number, read_protoent(fp,result,buffer,buflen,errnop)); return retv; } /* thread-local file pointer to an ongoing request */ static __thread TFILE *protoentfp; /* start a request to read all protocol entries */ nss_status_t _nss_ldap_setprotoent(int UNUSED(stayopen)) { NSS_SETENT(protoentfp); } /* get a single protocol entry */ nss_status_t _nss_ldap_getprotoent_r( struct protoent *result, char *buffer,size_t buflen,int *errnop) { NSS_GETENT(protoentfp,NSLCD_ACTION_PROTOCOL_ALL,buffer,buflen, read_protoent(protoentfp,result,buffer,buflen,errnop)); return retv; } /* close the stream opened by setprotoent() above */ nss_status_t _nss_ldap_endprotoent(void) { NSS_ENDENT(protoentfp); } #endif /* NSS_FLAVOUR_GLIBC */ #ifdef NSS_FLAVOUR_SOLARIS static nss_status_t _nss_nslcd_getprotobyname_r( const char *name,struct protoent *result,char *buffer, size_t buflen,int *errnop) { NSS_BYNAME(NSLCD_ACTION_PROTOCOL_BYNAME,buffer,buflen, name, read_protoent(fp,result,buffer,buflen,errnop)); return retv; } static nss_status_t _xnss_ldap_getprotobyname_r(nss_backend_t UNUSED(*be),void *args) { struct protoent priv_proto; struct protoent *proto=NSS_ARGS(args)->buf.result?(struct protoent *)NSS_ARGS(args)->buf.result:&priv_proto; char *buffer=NSS_ARGS(args)->buf.buffer; size_t buflen=NSS_ARGS(args)->buf.buflen; char *data_ptr; nss_status_t status; if (NSS_ARGS(args)->buf.buflen<0) { NSS_ARGS(args)->erange=1; return NSS_STATUS_TRYAGAIN; } status=_nss_nslcd_getprotobyname_r(NSS_ARGS(args)->key.name,proto,buffer,buflen,&errno); if (status!=NSS_STATUS_SUCCESS) return status; if (!NSS_ARGS(args)->buf.result) { /* result==NULL, return file format */ data_ptr=(char *)malloc(buflen); /* FIXME: shouldn't there be some range checks here to see if it actually fits inside the buffer? */ sprintf(data_ptr,"%s\t\t%d",proto->p_name,proto->p_proto); if (proto->p_aliases) { int i; for (i=0; proto->p_aliases[i]; i++) { strcat(data_ptr," "); strcat(data_ptr,proto->p_aliases[i]); } } strcpy(buffer,data_ptr); free(data_ptr); NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.buffer; NSS_ARGS(args)->returnlen=strlen(NSS_ARGS(args)->buf.buffer); } else { NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.result; } return status; } static nss_status_t _nss_nslcd_getprotobynumber_r( int number,struct protoent *result,char *buffer, size_t buflen,int *errnop) { NSS_BYINT32(NSLCD_ACTION_PROTOCOL_BYNUMBER,buffer,buflen, number, read_protoent(fp,result,buffer,buflen,errnop)); return retv; } static nss_status_t _xnss_ldap_getprotobynumber_r(nss_backend_t UNUSED(*be),void *args) { struct protoent priv_proto; struct protoent *proto=NSS_ARGS(args)->buf.result?(struct protoent *)NSS_ARGS(args)->buf.result:&priv_proto; int number=NSS_ARGS(args)->key.number; char *buffer=NSS_ARGS(args)->buf.buffer; size_t buflen=NSS_ARGS(args)->buf.buflen; char *data_ptr; nss_status_t status; if (NSS_ARGS(args)->buf.buflen<0) { NSS_ARGS(args)->erange=1; return NSS_STATUS_TRYAGAIN; } status=_nss_nslcd_getprotobynumber_r(number,proto,buffer,buflen,&errno); if (status!=NSS_STATUS_SUCCESS) return status; if (!NSS_ARGS(args)->buf.result) { /* result==NULL, return file format */ data_ptr=(char *)malloc(buflen); sprintf(data_ptr,"%s\t\t%d",proto->p_name,proto->p_proto); if (proto->p_aliases) { int i; for (i=0; proto->p_aliases[i]; i++) { strcat(data_ptr," "); strcat(data_ptr,proto->p_aliases[i]); } } strcpy(buffer,data_ptr); free(data_ptr); NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.buffer; NSS_ARGS(args)->returnlen=strlen(NSS_ARGS(args)->buf.buffer); } else { NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.result; } return status; } /* thread-local file pointer to an ongoing request */ static __thread TFILE *protoentfp; static nss_status_t _xnss_ldap_setprotoent(nss_backend_t UNUSED(*be),void UNUSED(*args)) { NSS_SETENT(protoentfp); } static nss_status_t _nss_nslcd_getprotoent_r( struct protoent *result,char *buffer,size_t buflen,int *errnop) { NSS_GETENT(protoentfp,NSLCD_ACTION_PROTOCOL_ALL,buffer,buflen, read_protoent(protoentfp,result,buffer,buflen,errnop)); return retv; } static nss_status_t _xnss_ldap_getprotoent_r(nss_backend_t UNUSED(*be),void *args) { struct protoent priv_proto; struct protoent *proto=NSS_ARGS(args)->buf.result?(struct protoent *)NSS_ARGS(args)->buf.result:&priv_proto; char *buffer=NSS_ARGS(args)->buf.buffer; size_t buflen=NSS_ARGS(args)->buf.buflen; char *data_ptr; nss_status_t status; if (NSS_ARGS(args)->buf.buflen<0) { NSS_ARGS(args)->erange=1; return NSS_STATUS_TRYAGAIN; } status=_nss_nslcd_getprotoent_r(proto,buffer,buflen,&errno); if (status!=NSS_STATUS_SUCCESS) return status; if (!NSS_ARGS(args)->buf.result) { /* result==NULL, return file format */ data_ptr=(char *)malloc(buflen); sprintf(data_ptr,"%s\t\t%d",proto->p_name,proto->p_proto); if (proto->p_aliases) { int i; for (i=0; proto->p_aliases[i]; i++) { strcat(data_ptr," "); strcat(data_ptr,proto->p_aliases[i]); } } strcpy(buffer,data_ptr); free(data_ptr); NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.buffer; NSS_ARGS(args)->returnlen=strlen(NSS_ARGS(args)->buf.buffer); } else { NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.result; } return status; } static nss_status_t _xnss_ldap_endprotoent(nss_backend_t UNUSED(*be),void UNUSED(*args)) { NSS_ENDENT(protoentfp); } static nss_status_t _xnss_ldap_protocols_destr(nss_backend_t *be,void UNUSED(*args)) { free(be); return NSS_STATUS_SUCCESS; } static nss_backend_op_t proto_ops[]={ _xnss_ldap_protocols_destr, _xnss_ldap_endprotoent, _xnss_ldap_setprotoent, _xnss_ldap_getprotoent_r, _xnss_ldap_getprotobyname_r, _xnss_ldap_getprotobynumber_r }; nss_backend_t *_nss_ldap_protocols_constr(const char UNUSED(*db_name), const char UNUSED(*src_name),const char UNUSED(*cfg_args)) { nss_backend_t *be; if (!(be=(nss_backend_t *)malloc(sizeof(*be)))) return NULL; be->ops=proto_ops; be->n_ops=sizeof(proto_ops)/sizeof(nss_backend_op_t); return (nss_backend_t *)be; } #endif /* NSS_FLAVOUR_SOLARIS */