1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 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 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 * 26 */ 27 28 /* $Id: psm.c 146 2006-03-24 00:26:54Z njacobs $ */ 29 30 #include <stdio.h> 31 #include <unistd.h> 32 #include <errno.h> 33 #include <string.h> 34 #include <dlfcn.h> 35 #include <papi_impl.h> 36 37 #ifndef RTLD_GROUP 38 #define RTLD_GROUP 0 39 #endif /* RTLD_GROUP */ 40 41 #ifndef PSM_DIR 42 #define PSM_DIR "/usr/lib/print" 43 #endif 44 45 papi_status_t 46 psm_open(service_t *svc, char *scheme) 47 { 48 papi_status_t result = PAPI_OK; 49 char path[BUFSIZ]; 50 51 if ((scheme == NULL) || (strchr(scheme, '/') != NULL)) 52 return (PAPI_BAD_ARGUMENT); 53 54 snprintf(path, sizeof (path), PSM_DIR "/psm-%s.so", scheme); 55 56 svc->so_handle = dlopen(path, RTLD_LAZY|RTLD_LOCAL|RTLD_GROUP); 57 if (svc->so_handle == NULL) { /* failed, set the result/message */ 58 if ((access(path, F_OK) < 0) && (errno == ENOENT)) 59 result = PAPI_URI_SCHEME; 60 else 61 result = PAPI_NOT_POSSIBLE; 62 #ifdef DEBUG 63 detailed_error(svc, "psm_open(%s): %s: %s", scheme, path, 64 dlerror()); 65 #endif 66 } 67 68 return (result); 69 } 70 71 void 72 psm_close(void *handle) 73 { 74 dlclose(handle); 75 } 76 77 void * 78 psm_sym(service_t *svc, char *name) 79 { 80 #ifdef DEBUG 81 char *error = "invalid input"; 82 #endif 83 void *func = NULL; 84 85 if ((svc != NULL) && (svc->so_handle != NULL) && (name != NULL)) { 86 if ((func = dlsym(svc->so_handle, name)) == NULL) { 87 #ifdef DEBUG 88 error = dlerror(); 89 #else 90 return (func); 91 #endif 92 } 93 } 94 #ifdef DEBUG 95 if (func == NULL) 96 detailed_error(svc, "psm_sym(%s): %s", name, error); 97 #endif 98 99 return (func); 100 } 101