lib/init.c

   1 /*
   2    Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
   3
   4
   5
   6    This program is distributed in the hope that it will be useful,
   7    but WITHOUT ANY WARRANTY; without even the implied warranty of
   8    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9    GNU Lesser General Public License for more details.
  10
  11    You should have received a copy of the GNU Lesser General Public License
  12    along with this program; if not, see <http://www.gnu.org/licenses/>.
  13 */
  14
  15 #ifdef WIN32
  16 #include "win32_compat.h"
  17 #else
  18 #include <unistd.h>
  19 #include <strings.h>
  20 #endif/*WIN32*/
  21 #define _GNU_SOURCE
  22
  23 #include <stdio.h>
  24 #include <stdarg.h>
  25 #include <string.h>
  26 #include <stdlib.h>
  27 #include <rpc/rpc.h>
  28 #include <rpc/xdr.h>
  29 #include "slist.h"
  30 #include "libnfs.h"
  31 #include "libnfs-raw.h"
  32 #include "libnfs-private.h"
  33
  34 struct rpc_context *rpc_init_context(void)
  35 {
  36         struct rpc_context *rpc;
  37
  38         rpc = malloc(sizeof(struct rpc_context));
  39         if (rpc == NULL) {
  40                 return NULL;
  41         }
  42         memset(rpc, 0, sizeof(struct rpc_context));
  43
  44         rpc->encodebuflen = 65536;
  45         rpc->encodebuf = malloc(rpc->encodebuflen);
  46         if (rpc->encodebuf == NULL) {
  47                 free(rpc);
  48                 return NULL;
  49         }
  50
  51 #if defined(WIN32)
  52         rpc->auth = authunix_create("LibNFS", 65535, 65535, 0, NULL);
  53 #else
  54         rpc->auth = authunix_create_default();
  55 #endif
  56         if (rpc->auth == NULL) {
  57                 free(rpc->encodebuf);
  58                 free(rpc);
  59                 return NULL;
  60         }
  61         rpc->xid = 1;
  62         rpc->fd = -1;
  63
  64         return rpc;
  65 }
  66
  67
  68 struct rpc_context *rpc_init_udp_context(void)
  69 {
  70         struct rpc_context *rpc;
  71
  72         rpc = rpc_init_context();
  73         if (rpc != NULL) {
  74                 rpc->is_udp = 1;
  75         }
  76
  77         return rpc;
  78 }
  79
  80 void rpc_set_auth(struct rpc_context *rpc, struct AUTH *auth)
  81 {
  82         if (rpc->auth != NULL) {
  83                 auth_destroy(rpc->auth);
  84         }
  85         rpc->auth = (AUTH *)auth;
  86 }
  87
  88
  89 void rpc_set_error(struct rpc_context *rpc, char *error_string, ...)
  90 {
  91         va_list ap;
  92
  93         if (rpc->error_string != NULL) {
  94                 free(rpc->error_string);
  95         }
  96         va_start(ap, error_string);
  97         rpc->error_string = malloc(1024);
  98         vsnprintf(rpc->error_string, 1024, error_string, ap);
  99         va_end(ap);
 100 }
 101
 102 char *rpc_get_error(struct rpc_context *rpc)
 103 {
 104         return rpc->error_string;
 105 }
 106
 107 void rpc_error_all_pdus(struct rpc_context *rpc, char *error)
 108 {
 109         struct rpc_pdu *pdu;
 110
 111         while((pdu = rpc->outqueue) != NULL) {
 112                 pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data);
 113                 SLIST_REMOVE(&rpc->outqueue, pdu);
 114                 rpc_free_pdu(rpc, pdu);
 115         }
 116         while((pdu = rpc->waitpdu) != NULL) {
 117                 pdu->cb(rpc, RPC_STATUS_ERROR, error, pdu->private_data);
 118                 SLIST_REMOVE(&rpc->waitpdu, pdu);
 119                 rpc_free_pdu(rpc, pdu);
 120         }
 121 }
 122
 123
 124 void rpc_destroy_context(struct rpc_context *rpc)
 125 {
 126         struct rpc_pdu *pdu;
 127
 128         while((pdu = rpc->outqueue) != NULL) {
 129                 pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, pdu->private_data);
 130                 SLIST_REMOVE(&rpc->outqueue, pdu);
 131                 rpc_free_pdu(rpc, pdu);
 132         }
 133         while((pdu = rpc->waitpdu) != NULL) {
 134                 pdu->cb(rpc, RPC_STATUS_CANCEL, NULL, pdu->private_data);
 135                 SLIST_REMOVE(&rpc->waitpdu, pdu);
 136                 rpc_free_pdu(rpc, pdu);
 137         }
 138
 139         auth_destroy(rpc->auth);
 140         rpc->auth =NULL;
 141
 142         if (rpc->fd != -1) {
 143 #if defined(WIN32)
 144                 closesocket(rpc->fd);
 145 #else
 146                 close(rpc->fd);
 147 #endif
 148         }
 149
 150         if (rpc->encodebuf != NULL) {
 151                 free(rpc->encodebuf);
 152                 rpc->encodebuf = NULL;
 153         }
 154
 155         if (rpc->error_string != NULL) {
 156                 free(rpc->error_string);
 157                 rpc->error_string = NULL;
 158         }
 159
 160         if (rpc->udp_dest != NULL) {
 161                 free(rpc->udp_dest);
 162                 rpc->udp_dest = NULL;
 163         }
 164
 165         free(rpc);
 166 }
 167
 168