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.
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.
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]
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
26 * Copyright (c) 2013 RackTop Systems.
29 * Copyright 2017 Joyent, Inc.
33 * Declarations for the functions in libcmdutils.
36 #ifndef _LIBCMDUTILS_H
37 #define _LIBCMDUTILS_H
40 #if !defined(_LP64) && \
41 !((_FILE_OFFSET_BITS == 64) || defined(_LARGEFILE64_SOURCE))
42 #error "libcmdutils.h can only be used in a largefile compilation environment"
47 * This is a private header file. Applications should not directly include
65 #include <sys/types.h>
68 #include <libnvpair.h>
74 /* extended system attribute support */
79 #define MAXMAPSIZE (1024*1024*8) /* map at most 8MB */
80 #define SMALLFILESIZE (32*1024) /* don't use mmap on little file */
82 /* Type used for a node containing a device id and inode number */
84 #if defined(_LP64) || (_FILE_OFFSET_BITS == 64)
85 typedef struct tree_node {
91 typedef struct tree_node {
98 /* extended system attribute support */
100 /* Determine if a file is the name of an extended system attribute file */
101 extern int sysattr_type(char *);
103 /* Determine if the underlying file system supports system attributes */
104 extern int sysattr_support(char *, int);
106 /* Copies the content of the source file to the target file */
107 #if defined(_LP64) || (_FILE_OFFSET_BITS == 64)
108 extern int writefile(int, int, char *, char *, char *, char *,
109 struct stat *, struct stat *);
111 extern int writefile(int, int, char *, char *, char *, char *,
112 struct stat64 *, struct stat64 *);
115 /* Gets file descriptors of the source and target attribute files */
116 extern int get_attrdirs(int, int, char *, int *, int *);
118 /* Move extended attribute and extended system attribute */
119 extern int mv_xattrs(char *, char *, char *, int, int);
121 /* Returns non default extended system attribute list */
122 extern nvlist_t *sysattr_list(char *, int, char *);
129 * Used to compare two nodes. We are attempting to match the 1st
130 * argument (node) against the 2nd argument (a node which
131 * is already in the search tree).
134 extern int tnode_compare(const void *, const void *);
137 * Used to add a single node (containing the input device id and
138 * inode number) to the specified search tree. The calling
139 * application must set the tree pointer to NULL before calling
140 * add_tnode() for the first time.
142 #if defined(_LP64) || (_FILE_OFFSET_BITS == 64)
143 extern int add_tnode(avl_tree_t **, dev_t, ino_t);
145 extern int add_tnode(avl_tree_t **, dev_t, ino64_t);
149 * Used to destroy a whole tree (all nodes) without rebalancing.
150 * The calling application is responsible for setting the tree
151 * pointer to NULL upon return.
153 extern void destroy_tree(avl_tree_t *);
157 /* user/group id helpers */
160 * Used to get the next available user id in given range.
162 extern int findnextuid(uid_t, uid_t, uid_t *);
165 * Used to get the next available group id in given range.
167 extern int findnextgid(gid_t, gid_t, gid_t *);
171 /* dynamic string utilities */
173 typedef struct custr custr_t;
176 * Allocate and free a "custr_t" dynamic string object. Returns 0 on success
179 extern int custr_alloc(custr_t **);
180 extern void custr_free(custr_t *);
183 * Allocate a "custr_t" dynamic string object that operates on a fixed external
186 extern int custr_alloc_buf(custr_t **, void *, size_t);
189 * Append a single character, or a NUL-terminated string of characters, to a
190 * dynamic string. Returns 0 on success and -1 otherwise. The dynamic string
191 * will be unmodified if the function returns -1.
193 extern int custr_appendc(custr_t *, char);
194 extern int custr_append(custr_t *, const char *);
197 * Append a format string and arguments as though the contents were being parsed
198 * through snprintf. Returns 0 on success and -1 otherwise. The dynamic string
199 * will be unmodified if the function returns -1.
201 extern int custr_append_printf(custr_t *, const char *, ...);
202 extern int custr_append_vprintf(custr_t *, const char *, va_list);
205 * Determine the length in bytes, not including the NUL terminator, of the
208 extern size_t custr_len(custr_t *);
211 * Clear the contents of a dynamic string. Does not free the underlying
214 extern void custr_reset(custr_t *);
217 * Retrieve a const pointer to a NUL-terminated string version of the contents
218 * of the dynamic string. Storage for this string should not be freed, and
219 * the pointer will be invalidated by any mutations to the dynamic string.
221 extern const char *custr_cstr(custr_t *str);
223 #define NN_DIVISOR_1000 (1U << 0)
225 /* Minimum size for the output of nicenum, including NULL */
226 #define NN_NUMBUF_SZ (6)
228 void nicenum(uint64_t, char *, size_t);
229 void nicenum_scale(uint64_t, size_t, char *, size_t, uint32_t);
235 #endif /* _LIBCMDUTILS_H */