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10132 smatch fixes for MDB
Reviewed by: Andy Fiddaman <andy@omniosce.org>


   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"


  28 
  29 #include "ndievents.h"
  30 #include <sys/sunndi.h>
  31 #include <sys/ndi_impldefs.h>
  32 #include <sys/dditypes.h>
  33 #include <sys/ddi_impldefs.h>
  34 #include <sys/sunddi.h>
  35 #include <sys/param.h>
  36 
  37 
  38 int
  39 dip_to_pathname(struct dev_info *device, char *path, int buflen) {
  40 
  41         char *bp;
  42         char *addr;
  43         char addr_str[32];
  44         char nodename[MAXNAMELEN];
  45         struct dev_info devi_parent;
  46 
  47         if (!device) {


  63                 return (0);
  64         }
  65 
  66         if (mdb_vread(&devi_parent, sizeof (struct dev_info),
  67             (uintptr_t)device->devi_parent) == -1) {
  68                 mdb_warn("Unable to access devi_parent at %p",
  69                     (uintptr_t)device->devi_parent);
  70                 return (-1);
  71         }
  72 
  73         if (dip_to_pathname(&devi_parent, path, buflen) == -1) {
  74                 return (-1);
  75         }
  76 
  77         if (mdb_readstr(nodename, sizeof (nodename),
  78             (uintptr_t)device->devi_node_name) == -1) {
  79                 return (-1);
  80         }
  81 
  82         if (device->devi_node_state < DS_INITIALIZED) {
  83                 strncpy(addr_str, '\0', sizeof ('\0'));
  84         } else {
  85                 addr = device->devi_addr;
  86                 if (mdb_readstr(addr_str, sizeof (addr_str),
  87                     (uintptr_t)addr) == -1) {
  88                         return (-1);
  89                 }
  90         }
  91 
  92         bp = path + strlen(path);
  93 
  94         if (addr_str[0] == '\0') {
  95                 (void) mdb_snprintf(bp, buflen - strlen(path), "/%s", nodename);
  96         } else {
  97                 (void) mdb_snprintf(bp, buflen - strlen(path), "/%s@%s",
  98                     nodename, addr_str);
  99         }
 100         return (0);
 101 
 102 }
 103 




   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*
  28  * Copyright (c) 2018, Joyent, Inc.
  29  */
  30 
  31 #include "ndievents.h"
  32 #include <sys/sunndi.h>
  33 #include <sys/ndi_impldefs.h>
  34 #include <sys/dditypes.h>
  35 #include <sys/ddi_impldefs.h>
  36 #include <sys/sunddi.h>
  37 #include <sys/param.h>
  38 
  39 
  40 int
  41 dip_to_pathname(struct dev_info *device, char *path, int buflen) {
  42 
  43         char *bp;
  44         char *addr;
  45         char addr_str[32];
  46         char nodename[MAXNAMELEN];
  47         struct dev_info devi_parent;
  48 
  49         if (!device) {


  65                 return (0);
  66         }
  67 
  68         if (mdb_vread(&devi_parent, sizeof (struct dev_info),
  69             (uintptr_t)device->devi_parent) == -1) {
  70                 mdb_warn("Unable to access devi_parent at %p",
  71                     (uintptr_t)device->devi_parent);
  72                 return (-1);
  73         }
  74 
  75         if (dip_to_pathname(&devi_parent, path, buflen) == -1) {
  76                 return (-1);
  77         }
  78 
  79         if (mdb_readstr(nodename, sizeof (nodename),
  80             (uintptr_t)device->devi_node_name) == -1) {
  81                 return (-1);
  82         }
  83 
  84         if (device->devi_node_state < DS_INITIALIZED) {
  85                 addr_str[0] = '\0';
  86         } else {
  87                 addr = device->devi_addr;
  88                 if (mdb_readstr(addr_str, sizeof (addr_str),
  89                     (uintptr_t)addr) == -1) {
  90                         return (-1);
  91                 }
  92         }
  93 
  94         bp = path + strlen(path);
  95 
  96         if (addr_str[0] == '\0') {
  97                 (void) mdb_snprintf(bp, buflen - strlen(path), "/%s", nodename);
  98         } else {
  99                 (void) mdb_snprintf(bp, buflen - strlen(path), "/%s@%s",
 100                     nodename, addr_str);
 101         }
 102         return (0);
 103 
 104 }
 105