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/* |
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* i-scream libstatgrab |
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* http://www.i-scream.org |
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* Copyright (C) 2000-2004 i-scream |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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* 02111-1307 USA |
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* |
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* $Id: tools.c,v 1.45 2004/04/06 17:55:16 ats Exp $ |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include <stdio.h> |
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#include <string.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <regex.h> |
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#ifdef ALLBSD |
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#include <fcntl.h> |
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#endif |
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#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
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#include <kvm.h> |
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#include <paths.h> |
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#endif |
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#if defined(NETBSD) || defined(OPENBSD) |
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#include <uvm/uvm_extern.h> |
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#include <sys/param.h> |
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#include <sys/sysctl.h> |
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#endif |
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|
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#include "tools.h" |
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#include "statgrab.h" |
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|
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#ifdef SOLARIS |
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#ifdef HAVE_LIBDEVINFO_H |
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#include <libdevinfo.h> |
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#endif |
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#include <kstat.h> |
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#include <unistd.h> |
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#include <ctype.h> |
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#include <sys/types.h> |
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#include <sys/dkio.h> |
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#include <sys/stat.h> |
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#include <fcntl.h> |
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#include <sys/fcntl.h> |
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#include <dirent.h> |
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#endif |
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|
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#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H) |
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struct map{ |
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char *bsd; |
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char *svr; |
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|
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struct map *next; |
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}; |
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typedef struct map mapping_t; |
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|
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static mapping_t *mapping = NULL; |
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#endif |
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|
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#ifdef SOLARIS |
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const char *sg_get_svr_from_bsd(const char *bsd){ |
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#ifdef HAVE_LIBDEVINFO_H |
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mapping_t *map_ptr; |
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for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next) |
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if(!strcmp(map_ptr->bsd, bsd)) return map_ptr->svr; |
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#endif |
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return bsd; |
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} |
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#endif |
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|
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#if defined(SOLARIS) && defined(HAVE_LIBDEVINFO_H) |
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static void add_mapping(char *bsd, char *svr){ |
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mapping_t *map_ptr; |
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mapping_t *map_end_ptr; |
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|
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if (mapping == NULL){ |
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mapping = malloc(sizeof(mapping_t)); |
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if (mapping == NULL) return; |
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map_ptr = mapping; |
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}else{ |
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/* See if its already been added */ |
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for(map_ptr = mapping; map_ptr != NULL; map_ptr = map_ptr->next){ |
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if( (!strcmp(map_ptr->bsd, bsd)) || (!strcmp(map_ptr->svr, svr)) ){ |
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return; |
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} |
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map_end_ptr = map_ptr; |
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} |
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|
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/* We've reached end of list and not found the entry.. So we need to malloc |
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* new mapping_t |
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*/ |
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map_end_ptr->next = malloc(sizeof(mapping_t)); |
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if (map_end_ptr->next == NULL) return; |
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map_ptr = map_end_ptr->next; |
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} |
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|
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map_ptr->next = NULL; |
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map_ptr->bsd = strdup(bsd); |
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map_ptr->svr = strdup(svr); |
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|
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return; |
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} |
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|
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|
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static char *read_dir(char *disk_path){ |
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DIR *dirp; |
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struct dirent *dp; |
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struct stat stbuf; |
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char *svr_name; |
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char current_dir[MAXPATHLEN]; |
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char file_name[MAXPATHLEN]; |
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char temp_name[MAXPATHLEN]; |
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char dir_dname[MAXPATHLEN]; |
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char *dsk_dir; |
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int x; |
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|
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dsk_dir = "/dev/osa/dev/dsk"; |
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strncpy(current_dir, dsk_dir, sizeof current_dir); |
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if ((dirp = opendir(current_dir)) == NULL){ |
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dsk_dir = "/dev/dsk"; |
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snprintf(current_dir, sizeof current_dir, "%s", dsk_dir); |
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if ((dirp = opendir(current_dir)) == NULL){ |
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return NULL; |
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} |
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} |
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|
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while ((dp = readdir(dirp)) != NULL){ |
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snprintf(temp_name, sizeof temp_name, "../..%s", disk_path); |
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snprintf(dir_dname, sizeof dir_dname, "%s/%s", dsk_dir, dp->d_name); |
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stat(dir_dname,&stbuf); |
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|
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if (S_ISBLK(stbuf.st_mode)){ |
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x = readlink(dir_dname, file_name, sizeof(file_name)); |
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file_name[x] = '\0'; |
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if (strcmp(file_name, temp_name) == 0) { |
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svr_name = strdup(dp->d_name); |
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closedir(dirp); |
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return svr_name; |
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} |
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} |
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} |
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closedir(dirp); |
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return NULL; |
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} |
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|
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|
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static int get_alias(char *alias){ |
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char file[MAXPATHLEN]; |
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di_node_t root_node; |
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di_node_t node; |
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di_minor_t minor = DI_MINOR_NIL; |
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char tmpnode[MAXPATHLEN]; |
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char *phys_path; |
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char *minor_name; |
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char *value; |
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int instance; |
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if ((root_node = di_init("/", DINFOCPYALL)) == DI_NODE_NIL) { |
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return -1; |
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} |
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node = di_drv_first_node(alias, root_node); |
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while (node != DI_NODE_NIL) { |
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if ((minor = di_minor_next(node, DI_MINOR_NIL)) != DI_MINOR_NIL) { |
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instance = di_instance(node); |
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phys_path = di_devfs_path(node); |
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minor_name = di_minor_name(minor); |
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strcpy(tmpnode, alias); |
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sprintf(tmpnode, "%s%d", tmpnode, instance); |
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sg_strlcpy(file, "/devices", sizeof file); |
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sg_strlcat(file, phys_path, sizeof file); |
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sg_strlcat(file, ":", sizeof file); |
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sg_strlcat(file, minor_name, sizeof file); |
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value = read_dir(file); |
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if (value != NULL){ |
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add_mapping(tmpnode, value); |
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} |
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di_devfs_path_free(phys_path); |
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node = di_drv_next_node(node); |
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}else{ |
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node = di_drv_next_node(node); |
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} |
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} |
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di_fini(root_node); |
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return 0; |
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} |
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|
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|
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#define BIG_ENOUGH 512 |
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static int build_mapping(){ |
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char device_name[BIG_ENOUGH]; |
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int x; |
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kstat_ctl_t *kc; |
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kstat_t *ksp; |
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kstat_io_t kios; |
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|
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char driver_list[BIG_ENOUGH][BIG_ENOUGH]; |
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int list_entries = 0; |
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int found; |
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|
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if ((kc = kstat_open()) == NULL) { |
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return -1; |
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} |
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|
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for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
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if (!strcmp(ksp->ks_class, "disk")) { |
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if(ksp->ks_type != KSTAT_TYPE_IO) continue; |
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/* We dont want metadevices appearing as num_diskio */ |
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if(strcmp(ksp->ks_module, "md")==0) continue; |
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if((kstat_read(kc, ksp, &kios))==-1) continue; |
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strncpy(device_name, ksp->ks_name, sizeof device_name); |
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for(x=0;x<(sizeof device_name);x++){ |
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if( isdigit((int)device_name[x]) ) break; |
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} |
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if(x == sizeof device_name) x--; |
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device_name[x] = '\0'; |
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|
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/* Check if we've not already looked it up */ |
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found = 0; |
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for(x=0;x<list_entries;x++){ |
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if (x>=BIG_ENOUGH){ |
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/* We've got bigger than we thought was massive */ |
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/* If we hit this.. Make big enough bigger */ |
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return -1; |
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} |
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if( !strncmp(driver_list[x], device_name, BIG_ENOUGH)){ |
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found = 1; |
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break; |
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} |
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} |
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|
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if(!found){ |
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if((get_alias(device_name)) != 0){ |
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return -1; |
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} |
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strncpy(driver_list[x], device_name, BIG_ENOUGH); |
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list_entries++; |
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} |
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} |
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} |
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|
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return 0; |
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} |
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|
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#endif |
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|
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|
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|
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char *sg_f_read_line(FILE *f, const char *string){ |
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/* Max line length. 8k should be more than enough */ |
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static char line[8192]; |
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|
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while((fgets(line, sizeof(line), f))!=NULL){ |
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if(strncmp(string, line, strlen(string))==0){ |
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return line; |
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} |
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} |
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|
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return NULL; |
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} |
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|
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char *sg_get_string_match(char *line, regmatch_t *match){ |
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int len=match->rm_eo - match->rm_so; |
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char *match_string=malloc(len+1); |
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|
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match_string=strncpy(match_string, line+match->rm_so, len); |
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match_string[len]='\0'; |
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|
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return match_string; |
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} |
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|
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|
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|
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#ifndef HAVE_ATOLL |
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static long long atoll(const char *s) { |
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long long value = 0; |
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int isneg = 0; |
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|
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while (*s == ' ' || *s == '\t') { |
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s++; |
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} |
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if (*s == '-') { |
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isneg = 1; |
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s++; |
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} |
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while (*s >= '0' && *s <= '9') { |
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value = (10 * value) + (*s - '0'); |
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s++; |
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} |
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return (isneg ? -value : value); |
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} |
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#endif |
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|
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/* $OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $ */ |
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|
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/* |
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* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
315 |
* purpose with or without fee is hereby granted, provided that the above |
316 |
* copyright notice and this permission notice appear in all copies. |
317 |
* |
318 |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
319 |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
320 |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
321 |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
322 |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
323 |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
324 |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
325 |
*/ |
326 |
|
327 |
/* |
328 |
* Copy src to string dst of size siz. At most siz-1 characters |
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* will be copied. Always NUL terminates (unless siz == 0). |
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* Returns strlen(src); if retval >= siz, truncation occurred. |
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*/ |
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size_t sg_strlcpy(char *dst, const char *src, size_t siz){ |
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register char *d = dst; |
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register const char *s = src; |
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register size_t n = siz; |
336 |
|
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/* Copy as many bytes as will fit */ |
338 |
if (n != 0 && --n != 0) { |
339 |
do { |
340 |
if ((*d++ = *s++) == 0) |
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break; |
342 |
} while (--n != 0); |
343 |
} |
344 |
|
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/* Not enough room in dst, add NUL and traverse rest of src */ |
346 |
if (n == 0) { |
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if (siz != 0) |
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*d = '\0'; /* NUL-terminate dst */ |
349 |
while (*s++) |
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; |
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} |
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|
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return(s - src - 1); /* count does not include NUL */ |
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} |
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|
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/* $OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $ */ |
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|
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/* |
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* Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> |
360 |
* |
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* Permission to use, copy, modify, and distribute this software for any |
362 |
* purpose with or without fee is hereby granted, provided that the above |
363 |
* copyright notice and this permission notice appear in all copies. |
364 |
* |
365 |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
366 |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
367 |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
368 |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
369 |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
370 |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
371 |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
372 |
*/ |
373 |
|
374 |
/* |
375 |
* Appends src to string dst of size siz (unlike strncat, siz is the |
376 |
* full size of dst, not space left). At most siz-1 characters |
377 |
* will be copied. Always NUL terminates (unless siz <= strlen(dst)). |
378 |
* Returns strlen(src) + MIN(siz, strlen(initial dst)). |
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* If retval >= siz, truncation occurred. |
380 |
*/ |
381 |
size_t sg_strlcat(char *dst, const char *src, size_t siz){ |
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register char *d = dst; |
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register const char *s = src; |
384 |
register size_t n = siz; |
385 |
size_t dlen; |
386 |
|
387 |
/* Find the end of dst and adjust bytes left but don't go past end */ |
388 |
while (n-- != 0 && *d != '\0') |
389 |
d++; |
390 |
dlen = d - dst; |
391 |
n = siz - dlen; |
392 |
|
393 |
if (n == 0) |
394 |
return(dlen + strlen(s)); |
395 |
while (*s != '\0') { |
396 |
if (n != 1) { |
397 |
*d++ = *s; |
398 |
n--; |
399 |
} |
400 |
s++; |
401 |
} |
402 |
*d = '\0'; |
403 |
|
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return(dlen + (s - src)); /* count does not include NUL */ |
405 |
} |
406 |
|
407 |
int sg_update_string(char **dest, const char *src) { |
408 |
char *new; |
409 |
|
410 |
if (src == NULL) { |
411 |
/* We're being told to set it to NULL. */ |
412 |
free(*dest); |
413 |
*dest = NULL; |
414 |
return 0; |
415 |
} |
416 |
|
417 |
new = realloc(*dest, strlen(src) + 1); |
418 |
if (new == NULL) { |
419 |
return -1; |
420 |
} |
421 |
|
422 |
strcpy(new, src); |
423 |
*dest = new; |
424 |
return 0; |
425 |
} |
426 |
|
427 |
long long sg_get_ll_match(char *line, regmatch_t *match){ |
428 |
char *ptr; |
429 |
long long num; |
430 |
|
431 |
ptr=line+match->rm_so; |
432 |
num=atoll(ptr); |
433 |
|
434 |
return num; |
435 |
} |
436 |
|
437 |
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
438 |
kvm_t *sg_get_kvm() { |
439 |
static kvm_t *kvmd = NULL; |
440 |
|
441 |
if (kvmd != NULL) { |
442 |
return kvmd; |
443 |
} |
444 |
|
445 |
kvmd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL); |
446 |
return kvmd; |
447 |
} |
448 |
|
449 |
/* Can't think of a better name for this function */ |
450 |
kvm_t *sg_get_kvm2() { |
451 |
static kvm_t *kvmd2 = NULL; |
452 |
|
453 |
if (kvmd2 != NULL) { |
454 |
return kvmd2; |
455 |
} |
456 |
|
457 |
kvmd2 = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL); |
458 |
return kvmd2; |
459 |
} |
460 |
#endif |
461 |
|
462 |
#if defined(NETBSD) || defined(OPENBSD) |
463 |
struct uvmexp *sg_get_uvmexp() { |
464 |
int mib[2]; |
465 |
size_t size = sizeof(struct uvmexp); |
466 |
static struct uvmexp uvm; |
467 |
struct uvmexp *new; |
468 |
|
469 |
mib[0] = CTL_VM; |
470 |
mib[1] = VM_UVMEXP; |
471 |
|
472 |
if (sysctl(mib, 2, &uvm, &size, NULL, 0) < 0) { |
473 |
return NULL; |
474 |
} |
475 |
|
476 |
return &uvm; |
477 |
} |
478 |
#endif |
479 |
|
480 |
int sg_init(){ |
481 |
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
482 |
if (sg_get_kvm() == NULL) { |
483 |
return -1; |
484 |
} |
485 |
if (sg_get_kvm2() == NULL) { |
486 |
return -1; |
487 |
} |
488 |
#endif |
489 |
#ifdef SOLARIS |
490 |
/* On solaris 7, this will fail if you are not root. But, everything |
491 |
* will still work, just no disk mappings. So we will ignore the exit |
492 |
* status of this, and carry on merrily. |
493 |
*/ |
494 |
#ifdef HAVE_LIBDEVINFO_H |
495 |
build_mapping(); |
496 |
#endif |
497 |
#endif |
498 |
return 0; |
499 |
} |
500 |
|
501 |
int sg_drop_privileges() { |
502 |
if (setegid(getgid()) != 0) return -1; |
503 |
if (seteuid(getuid()) != 0) return -1; |
504 |
return 0; |
505 |
} |
506 |
|
507 |
void *sg_realloc(void *ptr, size_t size) { |
508 |
void *tmp = NULL; |
509 |
tmp = realloc(ptr, size); |
510 |
if(tmp == NULL) { |
511 |
sg_set_error(SG_ERROR_MALLOC_FAILED, NULL); |
512 |
} |
513 |
return tmp; |
514 |
} |
515 |
|