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freebsd-skq/usr.sbin/pkg_install/lib/lib.h
sobomax 5ef9bb01d5 - Introduce a notion of `packing list format version'. This allows making 
non-backward compatible changes in the format of packing list and handle
  them gracefully;
- fix a longstanding issue with symlinks handling. Instead of recording
  checksum for the file symlink points to, record checksum for the value
  returned by readlink(2). For backward compatibility increase packing list
  format minor version number and provide a fallback to a previous behaviour,
  if package in question was created with older version of pkg_* tools;

Submitted by:	Alec Wolman <wolman@cs.washington.edu>, sobomax

- don't record MD5 checksum for device nodes, fifo's and other non-regular
  files.

Submitted by:	nbm
MFC in:		2 weeks
2001-10-10 08:21:41 +00:00

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/* $FreeBSD$ */
/*
* FreeBSD install - a package for the installation and maintainance
* of non-core utilities.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Jordan K. Hubbard
* 18 July 1993
*
* Include and define various things wanted by the library routines.
*
*/
#ifndef _INST_LIB_LIB_H_
#define _INST_LIB_LIB_H_
/* Includes */
#include <sys/param.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/queue.h>
#include <ctype.h>
#include <dirent.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
/* Macros */
#define SUCCESS (0)
#define FAIL (-1)
#ifndef TRUE
#define TRUE (1)
#endif
#ifndef FALSE
#define FALSE (0)
#endif
#define YES 2
#define NO 1
/* Usually "rm", but often "echo" during debugging! */
#define REMOVE_CMD "rm"
/* Usually "rm", but often "echo" during debugging! */
#define RMDIR_CMD "rmdir"
/* Where we put logging information by default, else ${PKG_DBDIR} if set */
#define DEF_LOG_DIR "/var/db/pkg"
/* just in case we change the environment variable name */
#define PKG_DBDIR "PKG_DBDIR"
/* macro to get name of directory where we put logging information */
#define LOG_DIR (getenv(PKG_DBDIR) ? getenv(PKG_DBDIR) : DEF_LOG_DIR)
/* The names of our "special" files */
#define CONTENTS_FNAME "+CONTENTS"
#define COMMENT_FNAME "+COMMENT"
#define DESC_FNAME "+DESC"
#define INSTALL_FNAME "+INSTALL"
#define POST_INSTALL_FNAME "+POST-INSTALL"
#define DEINSTALL_FNAME "+DEINSTALL"
#define POST_DEINSTALL_FNAME "+POST-DEINSTALL"
#define REQUIRE_FNAME "+REQUIRE"
#define REQUIRED_BY_FNAME "+REQUIRED_BY"
#define DISPLAY_FNAME "+DISPLAY"
#define MTREE_FNAME "+MTREE_DIRS"
#define CMD_CHAR '@' /* prefix for extended PLIST cmd */
/* The name of the "prefix" environment variable given to scripts */
#define PKG_PREFIX_VNAME "PKG_PREFIX"
/* Version numbers to assist with changes in package file format */
#define PLIST_FMT_VER_MAJOR 1
#define PLIST_FMT_VER_MINOR 1
enum _plist_t {
PLIST_FILE, PLIST_CWD, PLIST_CMD, PLIST_CHMOD,
PLIST_CHOWN, PLIST_CHGRP, PLIST_COMMENT, PLIST_IGNORE,
PLIST_NAME, PLIST_UNEXEC, PLIST_SRC, PLIST_DISPLAY,
PLIST_PKGDEP, PLIST_MTREE, PLIST_DIR_RM, PLIST_IGNORE_INST,
PLIST_OPTION
};
typedef enum _plist_t plist_t;
enum _match_t {
MATCH_ALL, MATCH_EXACT, MATCH_GLOB, MATCH_REGEX
};
typedef enum _match_t match_t;
/* Types */
typedef unsigned int Boolean;
struct _plist {
struct _plist *prev, *next;
char *name;
Boolean marked;
plist_t type;
};
typedef struct _plist *PackingList;
struct _pack {
struct _plist *head, *tail;
int fmtver_maj, fmtver_mnr;
};
typedef struct _pack Package;
struct reqr_by_entry {
STAILQ_ENTRY(reqr_by_entry) link;
char pkgname[PATH_MAX];
};
STAILQ_HEAD(reqr_by_head, reqr_by_entry);
/* Prototypes */
/* Misc */
int vsystem(const char *, ...);
char *vpipe(const char *, ...);
void cleanup(int);
char *make_playpen(char *, off_t);
char *where_playpen(void);
void leave_playpen(void);
off_t min_free(const char *);
/* String */
char *get_dash_string(char **);
char *copy_string(const char *);
Boolean suffix(const char *, const char *);
void nuke_suffix(char *);
void str_lowercase(char *);
char *strconcat(const char *, const char *);
char *get_string(char *, int, FILE *);
/* File */
Boolean fexists(const char *);
Boolean isdir(const char *);
Boolean isemptydir(const char *fname);
Boolean isemptyfile(const char *fname);
Boolean isfile(const char *);
Boolean isempty(const char *);
Boolean issymlink(const char *);
Boolean isURL(const char *);
char *fileGetURL(const char *, const char *);
char *fileFindByPath(const char *, const char *);
char *fileGetContents(const char *);
void write_file(const char *, const char *);
void copy_file(const char *, const char *, const char *);
void move_file(const char *, const char *, const char *);
void copy_hierarchy(const char *, const char *, Boolean);
int delete_hierarchy(const char *, Boolean, Boolean);
int unpack(const char *, const char *);
void format_cmd(char *, const char *, const char *, const char *);
/* Msg */
void upchuck(const char *);
void barf(const char *, ...);
void whinge(const char *, ...);
Boolean y_or_n(Boolean, const char *, ...);
/* Packing list */
PackingList new_plist_entry(void);
PackingList last_plist(Package *);
PackingList find_plist(Package *, plist_t);
char *find_plist_option(Package *, const char *name);
void plist_delete(Package *, Boolean, plist_t, const char *);
void free_plist(Package *);
void mark_plist(Package *);
void csum_plist_entry(char *, PackingList);
void add_plist(Package *, plist_t, const char *);
void add_plist_top(Package *, plist_t, const char *);
void delete_plist(Package *pkg, Boolean all, plist_t type, const char *name);
void write_plist(Package *, FILE *);
void read_plist(Package *, FILE *);
int plist_cmd(const char *, char **);
int delete_package(Boolean, Boolean, Package *);
Boolean make_preserve_name(char *, int, const char *, const char *);
/* For all */
int pkg_perform(char **);
/* Query installed packages */
char **matchinstalled(match_t, char **, int *);
/* Dependencies */
int sortdeps(char **);
int chkifdepends(const char *, const char *);
int requiredby(const char *, struct reqr_by_head **, Boolean, Boolean);
/* Version */
int verscmp(Package *, int, int);
/* Externs */
extern Boolean Verbose;
extern Boolean Fake;
extern Boolean Force;
extern int AutoAnswer;
#endif /* _INST_LIB_LIB_H_ */
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