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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 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 /* 30 * misc.c - miscellaneous and utility functions 31 */ 32 33 #include <sys/stat.h> 34 #include <sys/statvfs.h> 35 #include <sys/types.h> 36 #include <ctype.h> 37 #include <errno.h> 38 #include <fcntl.h> 39 #include <libscf_priv.h> 40 #include <libuutil.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <strings.h> 45 #include <syslog.h> 46 #include <unistd.h> 47 48 #include "startd.h" 49 50 void 51 startd_close(int fd) 52 { 53 if (close(fd) == 0) 54 return; 55 56 log_error(LOG_WARNING, "close(%d) failed: %s\n", fd, strerror(errno)); 57 abort(); 58 } 59 60 void 61 startd_fclose(FILE *fp) 62 { 63 if (fclose(fp) == 0) 64 return; 65 66 log_error(LOG_WARNING, "fclose() failed\n"); 67 abort(); 68 } 69 70 /* 71 * Canonify fmri. On success, sets *retp to a string which should be freed 72 * with startd_free( , max_scf_fmri_size) and returns 0. On failure returns 73 * EINVAL. 74 * 75 * If 'isinstance' is non-zero, then return EINVAL if the FMRI specificies 76 * anything other than an instance. 77 */ 78 int 79 fmri_canonify(const char *fmri, char **retp, boolean_t isinstance) 80 { 81 char *cf; 82 83 cf = startd_alloc(max_scf_fmri_size); 84 85 if (isinstance) { 86 const char *instance, *pg; 87 88 /* 89 * Verify that this fmri specifies an instance, using 90 * scf_parse_svc_fmri(). 91 */ 92 if (strlcpy(cf, fmri, max_scf_fmri_size) >= max_scf_fmri_size || 93 scf_parse_svc_fmri(cf, NULL, NULL, &instance, &pg, 94 NULL) != 0) { 95 startd_free(cf, max_scf_fmri_size); 96 return (EINVAL); 97 } 98 99 if (instance == NULL || pg != NULL) { 100 startd_free(cf, max_scf_fmri_size); 101 return (EINVAL); 102 } 103 } 104 105 if (scf_canonify_fmri(fmri, cf, max_scf_fmri_size) < 0) { 106 startd_free(cf, max_scf_fmri_size); 107 return (EINVAL); 108 } 109 110 *retp = cf; 111 return (0); 112 } 113 114 /* 115 * int fs_is_read_only(char *, ulong_t *) 116 * Returns 1 if the given path is that of a filesystem with the ST_RDONLY flag 117 * set. 0 if ST_RDONLY is unset. -1 if the statvfs(2) call failed. If the 118 * second parameter is non-NULL, the fsid for the requested filesystem is 119 * written to the given address on success. 120 */ 121 int 122 fs_is_read_only(char *path, ulong_t *fsidp) 123 { 124 int err; 125 struct statvfs sfb; 126 127 do { 128 err = statvfs(path, &sfb); 129 } while (err == -1 && errno == EINTR); 130 131 if (err) 132 return (-1); 133 134 if (fsidp != NULL) 135 *fsidp = sfb.f_fsid; 136 137 if (sfb.f_flag & ST_RDONLY) 138 return (1); 139 140 return (0); 141 } 142 143 /* 144 * int fs_remount(char *) 145 * Attempt to remount the given filesystem read-write, so that we can unlock 146 * the repository (or handle other similar failures). 147 * 148 * Returns 0 on success, -1 on failure. 149 */ 150 int 151 fs_remount(char *path) 152 { 153 if (fork_mount(path, "remount,rw")) 154 return (-1); 155 156 return (0); 157 } 158 159 /* 160 * void xstr_sanitize(char *s) 161 * In-place transform any non-alphanumeric characters (or '_') to '_' 162 * characters. 163 */ 164 void 165 xstr_sanitize(char *s) 166 { 167 for (; *s != '\0'; s++) 168 if (!isalnum(*s) && *s != '_') 169 *s = '_'; 170 } 171