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10135 picl plugins need smatch fixes


   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 /*




  27  * PICL plug-in that creates device tree nodes for all platforms
  28  */
  29 
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <ctype.h>
  33 #include <limits.h>
  34 #include <stdlib.h>
  35 #include <assert.h>
  36 #include <alloca.h>
  37 #include <unistd.h>
  38 #include <stropts.h>
  39 #include <syslog.h>
  40 #include <libdevinfo.h>
  41 #include <sys/dkio.h>
  42 #include <sys/vtoc.h>
  43 #include <sys/time.h>
  44 #include <fcntl.h>
  45 #include <picl.h>
  46 #include <picltree.h>


1753 check_stale_node(di_node_t node, void *arg)
1754 {
1755         di_prom_prop_t  promp;
1756 
1757         errno = 0;
1758         promp = di_prom_prop_next(ph, node, DI_PROM_PROP_NIL);
1759         if (promp == DI_PROM_PROP_NIL && errno == EINVAL) {
1760                 snapshot_stale = 1;
1761                 return (DI_WALK_TERMINATE);
1762         }
1763         return (DI_WALK_CONTINUE);
1764 }
1765 
1766 /*
1767  * Walk the snapshot and check the OBP properties of each node.
1768  */
1769 static int
1770 is_snapshot_stale(di_node_t root)
1771 {
1772         snapshot_stale = 0;
1773         di_walk_node(root, DI_WALK_CLDFIRST, NULL, check_stale_node);
1774         return (snapshot_stale);
1775 }
1776 
1777 /*
1778  * This function processes the data from libdevinfo and creates nodes
1779  * in the PICL tree.
1780  */
1781 static int
1782 libdevinfo_init(picl_nodehdl_t rooth)
1783 {
1784         di_node_t       di_root;
1785         picl_nodehdl_t  plafh;
1786         picl_nodehdl_t  obph;
1787         int             err;
1788 
1789         /*
1790          * Use DINFOCACHE so that we obtain all attributes for all
1791          * device instances (without necessarily doing a load/attach
1792          * of all drivers).  Once the (on-disk) cache file is built, it
1793          * exists over a reboot and can be read into memory at a very


2529         opp = (struct openpromio *)malloc(sizeof (struct openpromio) +
2530             listsize);
2531         if (opp == NULL) {
2532                 (void) close(d);
2533                 return (0);
2534         }
2535         (void) memset(opp, '\0', sizeof (struct openpromio) + listsize);
2536         opp->oprom_size = listsize;
2537         if (ioctl(d, OPROMEXPORT, opp) == -1) {
2538                 free(opp);
2539                 (void) close(d);
2540                 return (0);
2541         }
2542         *exportlist = malloc(listsize);
2543         if (*exportlist == NULL) {
2544                 free(opp);
2545                 (void) close(d);
2546                 return (0);
2547         }
2548         (void) memcpy(*exportlist, opp->oprom_array, opp->oprom_size);
2549         free(opp);
2550         *exportlistlen = opp->oprom_size;

2551         (void) close(d);
2552         return (1);
2553 }
2554 
2555 /*
2556  * Parses properties string, fills in triplet structure with first
2557  * type, name, val triplet and returns pointer to next property.
2558  * Returns NULL if no valid triplet found
2559  * CAUTION: drops \0 characters over separator characters: if you
2560  * want to parse the string twice, you'll have to take a copy.
2561  */
2562 static char *
2563 parse_props_string(char *props, asr_prop_triplet_t *triplet)
2564 {
2565         char    *prop_name;
2566         char    *prop_val;
2567         char    *prop_next;
2568 
2569         prop_name = strchr(props, '?');
2570         if (prop_name == NULL)




   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 /*
  27  * Copyright (c) 2018, Joyent, Inc.
  28  */
  29 
  30 /*
  31  * PICL plug-in that creates device tree nodes for all platforms
  32  */
  33 
  34 #include <stdio.h>
  35 #include <string.h>
  36 #include <ctype.h>
  37 #include <limits.h>
  38 #include <stdlib.h>
  39 #include <assert.h>
  40 #include <alloca.h>
  41 #include <unistd.h>
  42 #include <stropts.h>
  43 #include <syslog.h>
  44 #include <libdevinfo.h>
  45 #include <sys/dkio.h>
  46 #include <sys/vtoc.h>
  47 #include <sys/time.h>
  48 #include <fcntl.h>
  49 #include <picl.h>
  50 #include <picltree.h>


1757 check_stale_node(di_node_t node, void *arg)
1758 {
1759         di_prom_prop_t  promp;
1760 
1761         errno = 0;
1762         promp = di_prom_prop_next(ph, node, DI_PROM_PROP_NIL);
1763         if (promp == DI_PROM_PROP_NIL && errno == EINVAL) {
1764                 snapshot_stale = 1;
1765                 return (DI_WALK_TERMINATE);
1766         }
1767         return (DI_WALK_CONTINUE);
1768 }
1769 
1770 /*
1771  * Walk the snapshot and check the OBP properties of each node.
1772  */
1773 static int
1774 is_snapshot_stale(di_node_t root)
1775 {
1776         snapshot_stale = 0;
1777         (void) di_walk_node(root, DI_WALK_CLDFIRST, NULL, check_stale_node);
1778         return (snapshot_stale);
1779 }
1780 
1781 /*
1782  * This function processes the data from libdevinfo and creates nodes
1783  * in the PICL tree.
1784  */
1785 static int
1786 libdevinfo_init(picl_nodehdl_t rooth)
1787 {
1788         di_node_t       di_root;
1789         picl_nodehdl_t  plafh;
1790         picl_nodehdl_t  obph;
1791         int             err;
1792 
1793         /*
1794          * Use DINFOCACHE so that we obtain all attributes for all
1795          * device instances (without necessarily doing a load/attach
1796          * of all drivers).  Once the (on-disk) cache file is built, it
1797          * exists over a reboot and can be read into memory at a very


2533         opp = (struct openpromio *)malloc(sizeof (struct openpromio) +
2534             listsize);
2535         if (opp == NULL) {
2536                 (void) close(d);
2537                 return (0);
2538         }
2539         (void) memset(opp, '\0', sizeof (struct openpromio) + listsize);
2540         opp->oprom_size = listsize;
2541         if (ioctl(d, OPROMEXPORT, opp) == -1) {
2542                 free(opp);
2543                 (void) close(d);
2544                 return (0);
2545         }
2546         *exportlist = malloc(listsize);
2547         if (*exportlist == NULL) {
2548                 free(opp);
2549                 (void) close(d);
2550                 return (0);
2551         }
2552         (void) memcpy(*exportlist, opp->oprom_array, opp->oprom_size);

2553         *exportlistlen = opp->oprom_size;
2554         free(opp);
2555         (void) close(d);
2556         return (1);
2557 }
2558 
2559 /*
2560  * Parses properties string, fills in triplet structure with first
2561  * type, name, val triplet and returns pointer to next property.
2562  * Returns NULL if no valid triplet found
2563  * CAUTION: drops \0 characters over separator characters: if you
2564  * want to parse the string twice, you'll have to take a copy.
2565  */
2566 static char *
2567 parse_props_string(char *props, asr_prop_triplet_t *triplet)
2568 {
2569         char    *prop_name;
2570         char    *prop_val;
2571         char    *prop_next;
2572 
2573         prop_name = strchr(props, '?');
2574         if (prop_name == NULL)