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libcmdutils.h
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Editing: libcmdutils.h
/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 2013 RackTop Systems. */ /* * Copyright 2017 Joyent, Inc. */ /* * Declarations for the functions in libcmdutils. */ #ifndef _LIBCMDUTILS_H #define _LIBCMDUTILS_H #ifdef illumos #if !defined(_LP64) && \ !((_FILE_OFFSET_BITS == 64) || defined(_LARGEFILE64_SOURCE)) #error "libcmdutils.h can only be used in a largefile compilation environment" #endif #endif /* * This is a private header file. Applications should not directly include * this file. */ #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <stdarg.h> #include <errno.h> #include <fcntl.h> #include <limits.h> #include <libintl.h> #include <string.h> #include <dirent.h> #ifdef illumos #include <attr.h> #endif #include <sys/avl.h> #include <sys/types.h> #include <sys/stat.h> #include <sys/mman.h> #include <libnvpair.h> #ifdef __cplusplus extern "C" { #endif /* extended system attribute support */ #define _NOT_SATTR 0 #define _RO_SATTR 1 #define _RW_SATTR 2 #define MAXMAPSIZE (1024*1024*8) /* map at most 8MB */ #define SMALLFILESIZE (32*1024) /* don't use mmap on little file */ /* Type used for a node containing a device id and inode number */ #if defined(_LP64) || (_FILE_OFFSET_BITS == 64) typedef struct tree_node { dev_t node_dev; ino_t node_ino; avl_node_t avl_link; } tree_node_t; #else typedef struct tree_node { dev_t node_dev; ino64_t node_ino; avl_node_t avl_link; } tree_node_t; #endif /* extended system attribute support */ /* Determine if a file is the name of an extended system attribute file */ extern int sysattr_type(char *); /* Determine if the underlying file system supports system attributes */ extern int sysattr_support(char *, int); /* Copies the content of the source file to the target file */ #if defined(_LP64) || (_FILE_OFFSET_BITS == 64) extern int writefile(int, int, char *, char *, char *, char *, struct stat *, struct stat *); #else extern int writefile(int, int, char *, char *, char *, char *, struct stat64 *, struct stat64 *); #endif /* Gets file descriptors of the source and target attribute files */ extern int get_attrdirs(int, int, char *, int *, int *); /* Move extended attribute and extended system attribute */ extern int mv_xattrs(char *, char *, char *, int, int); /* Returns non default extended system attribute list */ extern nvlist_t *sysattr_list(char *, int, char *); /* avltree */ /* * Used to compare two nodes. We are attempting to match the 1st * argument (node) against the 2nd argument (a node which * is already in the search tree). */ extern int tnode_compare(const void *, const void *); /* * Used to add a single node (containing the input device id and * inode number) to the specified search tree. The calling * application must set the tree pointer to NULL before calling * add_tnode() for the first time. */ #if defined(_LP64) || (_FILE_OFFSET_BITS == 64) extern int add_tnode(avl_tree_t **, dev_t, ino_t); #else extern int add_tnode(avl_tree_t **, dev_t, ino64_t); #endif /* * Used to destroy a whole tree (all nodes) without rebalancing. * The calling application is responsible for setting the tree * pointer to NULL upon return. */ extern void destroy_tree(avl_tree_t *); /* user/group id helpers */ /* * Used to get the next available user id in given range. */ extern int findnextuid(uid_t, uid_t, uid_t *); /* * Used to get the next available group id in given range. */ extern int findnextgid(gid_t, gid_t, gid_t *); /* dynamic string utilities */ typedef struct custr custr_t; /* * Allocate and free a "custr_t" dynamic string object. Returns 0 on success * and -1 otherwise. */ extern int custr_alloc(custr_t **); extern void custr_free(custr_t *); /* * Allocate a "custr_t" dynamic string object that operates on a fixed external * buffer. */ extern int custr_alloc_buf(custr_t **, void *, size_t); /* * Append a single character, or a NUL-terminated string of characters, to a * dynamic string. Returns 0 on success and -1 otherwise. The dynamic string * will be unmodified if the function returns -1. */ extern int custr_appendc(custr_t *, char); extern int custr_append(custr_t *, const char *); /* * Append a format string and arguments as though the contents were being parsed * through snprintf. Returns 0 on success and -1 otherwise. The dynamic string * will be unmodified if the function returns -1. */ extern int custr_append_printf(custr_t *, const char *, ...); extern int custr_append_vprintf(custr_t *, const char *, va_list); /* * Determine the length in bytes, not including the NUL terminator, of the * dynamic string. */ extern size_t custr_len(custr_t *); /* * Clear the contents of a dynamic string. Does not free the underlying * memory. */ extern void custr_reset(custr_t *); /* * Retrieve a const pointer to a NUL-terminated string version of the contents * of the dynamic string. Storage for this string should not be freed, and * the pointer will be invalidated by any mutations to the dynamic string. */ extern const char *custr_cstr(custr_t *str); #define NN_DIVISOR_1000 (1U << 0) /* Minimum size for the output of nicenum, including NULL */ #define NN_NUMBUF_SZ (6) void nicenum(uint64_t, char *, size_t); void nicenum_scale(uint64_t, size_t, char *, size_t, uint32_t); #ifdef __cplusplus } #endif #endif /* _LIBCMDUTILS_H */
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