home *** CD-ROM | disk | FTP | other *** search
- /* defs.h -- data types and declarations.
- Copyright (C) 1987, 1990, 1991 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #if defined(HAVE_STRING_H) || defined(STDC_HEADERS)
- #include <string.h>
- #ifndef index
- #define index strchr
- #endif
- #ifndef rindex
- #define rindex strrchr
- #endif
- #else
- #include <strings.h>
- #endif
-
- #include <errno.h>
- #ifndef STDC_HEADERS
- extern int errno;
- #endif
-
- #ifdef STDC_HEADERS
- #include <stdlib.h>
- #endif
- #include <time.h>
- #include "regex.h"
-
- typedef char boolean;
- #define true 1
- #define false 0
-
- /* Pointer to function returning boolean. */
- typedef boolean (*PFB)();
-
- PFB find_parser ();
- boolean no_side_effects ();
- boolean parse_print ();
- char *xmalloc ();
- char *xrealloc ();
- struct predicate *get_expr ();
- struct predicate *get_new_pred ();
- struct predicate *get_new_pred_chk_op ();
- struct predicate *insert_victim ();
- void error ();
- void usage ();
-
- #ifdef DEBUG
- void print_tree ();
- void print_list ();
- #endif /* DEBUG */
-
- /* Argument structures for predicates. */
-
- enum comparison_type
- {
- COMP_GT,
- COMP_LT,
- COMP_EQ
- };
-
- enum predicate_type
- {
- NO_TYPE,
- VICTIM_TYPE,
- UNI_OP,
- BI_OP,
- OPEN_PAREN,
- CLOSE_PAREN
- };
-
- enum predicate_precedence
- {
- NO_PREC,
- COMMA_PREC,
- OR_PREC,
- AND_PREC,
- NEGATE_PREC,
- MAX_PREC
- };
-
- struct long_val
- {
- enum comparison_type kind;
- unsigned long l_val;
- };
-
- struct size_val
- {
- enum comparison_type kind;
- int blocksize;
- unsigned long size;
- };
-
- struct path_arg
- {
- short offset; /* Offset in `vec' of this arg. */
- short count; /* Number of path replacements in this arg. */
- char *origarg; /* Arg with "{}" intact. */
- };
-
- struct exec_val
- {
- struct path_arg *paths; /* Array of args with path replacements. */
- char **vec; /* Array of args to pass to program. */
- };
-
- /* The format string for a -printf or -fprintf is chopped into one or
- more `struct segment', linked together into a list.
- Each stretch of plain text is a segment, and
- each \c and `%' conversion is a segment. */
-
- /* Special values for the `kind' field of `struct segment'. */
- #define KIND_PLAIN 0 /* This segment is just plain text. */
- #define KIND_STOP 1 /* \c -- stop printing from this fmt string. */
-
- struct segment
- {
- int kind; /* Format chars or KIND_{PLAIN,STOP}. */
- char *text; /* Plain text or `%' format string. */
- int text_len; /* Length of `text'. */
- struct segment *next; /* Next segment for this predicate. */
- };
-
- struct format_val
- {
- struct segment *segment; /* Linked list of segments. */
- FILE *stream; /* Output stream to print on. */
- };
-
- struct predicate
- {
- /* Pointer to the function that implements this predicate. */
- PFB pred_func;
-
- /* Only used for debugging, but defined unconditionally so individual
- modules can be compiled with -DDEBUG. */
- char *p_name;
-
- /* The type of this node. There are two kinds. The first is real
- predicates ("victims") such as -perm, -print, or -exec. The
- other kind is operators for combining predicates. */
- enum predicate_type p_type;
-
- /* The precedence of this node. Only has meaning for operators. */
- enum predicate_precedence p_prec;
-
- /* True if this predicate node produces side effects. */
- boolean side_effects;
-
- /* True if this predicate node requires a stat system call to execute. */
- boolean need_stat;
-
- /* Information needed by the predicate processor.
- Next to each member are listed the predicates that use it. */
- union
- {
- char *str; /* fstype [i]lname [i]name [i]path */
- struct re_pattern_buffer *regex; /* regex */
- struct exec_val exec_vec; /* exec ok */
- struct long_val info; /* atime ctime mtime inum links */
- struct size_val size; /* size */
- unsigned short uid; /* user */
- unsigned short gid; /* group */
- time_t time; /* newer */
- unsigned long perm; /* perm */
- unsigned long type; /* type */
- FILE *stream; /* fprint fprint0 */
- struct format_val printf_vec; /* printf fprintf */
- } args;
-
- /* The next predicate in the user input sequence,
- which repesents the order in which the user supplied the
- predicates on the command line. */
- struct predicate *pred_next;
-
- /* The right and left branches from this node in the expression
- tree, which represents the order in which the nodes should be
- processed. */
- struct predicate *pred_left;
- struct predicate *pred_right;
- };
-
- /* The number of seconds in a day. */
- #define DAYSECS 86400
-
- extern char *program_name;
- extern struct predicate *predicates;
- extern struct predicate *last_pred;
- extern boolean do_dir_first;
- extern int maxdepth;
- extern int mindepth;
- extern int curdepth;
- extern time_t cur_day_start;
- extern boolean full_days;
- extern boolean no_leaf_check;
- extern boolean stay_on_filesystem;
- extern boolean stop_at_current_level;
- extern boolean have_stat;
- extern int exit_status;
- extern int path_length;
- extern int (*xstat) ();
-