procps 010114
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csmall
324
ps/common.h
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324
ps/common.h
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/*
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* Copyright 1998 by Albert Cahalan; all rights resered.
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* This file may be used subject to the terms and conditions of the
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* GNU Library General Public License Version 2, or any later version
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* at your option, as published by the Free Software Foundation.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*/
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#ifndef PROCPS_PS_H
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#define PROCPS_PS_H
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#include "../proc/readproc.h"
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#include <asm/page.h> /* looks safe for glibc, we need PAGE_SIZE */
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#if 0
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#define trace(args...) printf(## args)
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#else
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#define trace(args...)
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#endif
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/***************** GENERAL DEFINE ********************/
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/* selection list */
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#define SEL_RUID 1
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#define SEL_EUID 2
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#define SEL_SUID 3
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#define SEL_FUID 4
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#define SEL_RGID 5
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#define SEL_EGID 6
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#define SEL_SGID 7
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#define SEL_FGID 8
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#define SEL_PGRP 9
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#define SEL_PID 10
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#define SEL_TTY 11
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#define SEL_SESS 12
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#define SEL_COMM 13
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/* Since an enum could be smashed by a #define, it would be bad. */
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#define U98 0 /* Unix98 standard */ /* This must be 0 */
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#define XXX 1 /* Common extension */
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#define DEC 2 /* Digital Unix */
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#define AIX 3 /* AIX */
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#define SCO 4 /* SCO */
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#define LNX 5 /* Linux original :-) */
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#define BSD 6 /* FreeBSD and OpenBSD */
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#define SUN 7 /* SunOS 5 (Solaris) */
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#define HPU 8 /* HP-UX */
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#define SGI 9 /* Irix */
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#define SOE 10 /* IBM's S/390 OpenEdition */
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/*
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* Must not overflow the output buffer:
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* 32 pages for env+cmd
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* 8 kB pages on the Alpha
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* 5 chars for "\001 "
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* plus some slack for other stuff
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* That is about 1.3 MB on the Alpha
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*
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* This isn't good enough for setuid. If anyone cares, mmap() over the
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* last page with something unwriteable.
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*/
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/* maximum escape expansion is 6, for " */
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#define ESC_STRETCH 6
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/* output buffer size */
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#define OUTBUF_SIZE (32*PAGE_SIZE*ESC_STRETCH + 8*PAGE_SIZE)
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/* spaces used to right-justify things */
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#define SPACE_AMOUNT (int)(PAGE_SIZE)
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/******************* PS DEFINE *******************/
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/* personality control flags */
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#define PER_BROKEN_o 0x0001
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#define PER_BSD_h 0x0002
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#define PER_BSD_m 0x0004
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#define PER_CUMUL_MARKED 0x0008
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#define PER_FORCE_BSD 0x0010
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#define PER_GOOD_o 0x0020
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#define PER_OLD_m 0x0040
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#define PER_NO_DEFAULT_g 0x0080
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#define PER_ZAP_ADDR 0x0100
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#define PER_SANE_USER 0x0200
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#define PER_IRIX_l 0x0400
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/* Simple selections by bit mask */
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#define SS_B_x 0x01
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#define SS_B_g 0x02
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#define SS_U_d 0x04
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#define SS_U_a 0x08
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#define SS_B_a 0x10
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/* predefined format flags such as: -l -f l u s -j */
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#define FF_Uf 0x0001 /* -f */
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#define FF_Uj 0x0002 /* -j */
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#define FF_Ul 0x0004 /* -l */
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#define FF_Bj 0x0008 /* j */
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#define FF_Bl 0x0010 /* l */
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#define FF_Bs 0x0020 /* s */
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#define FF_Bu 0x0040 /* u */
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#define FF_Bv 0x0080 /* v */
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#define FF_LX 0x0100 /* X */
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#define FF_Lm 0x0200 /* m */ /* overloaded: threads, sort, format */
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/* predefined format modifier flags such as: -l -f l u s -j */
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#define FM_c 0x0001 /* -c */
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#define FM_j 0x0002 /* -j */ /* only set when !sysv_j_format */
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#define FM_y 0x0004 /* -y */
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#define FM_L 0x0008 /* -L */
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#define FM_P 0x0010 /* -P */
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#define FM_M 0x0020 /* -M */
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#define FM_T 0x0040 /* -T */
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#define FM_F 0x0080 /* -F */ /* -F also sets the regular -f flags */
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/* sorting & formatting */
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/* U,B,G is Unix,BSD,Gnu and then there is the option itself */
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#define SF_U_O 1
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#define SF_U_o 2
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#define SF_B_O 3
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#define SF_B_o 4
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#define SF_B_m 5 /* overloaded: threads, sort, format */
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#define SF_G_sort 6
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#define SF_G_format 7
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/* headers */
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#define HEAD_SINGLE 0 /* default, must be 0 */
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#define HEAD_NONE 1
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#define HEAD_MULTI 2
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/********************** GENERAL TYPEDEF *******************/
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/* Other fields that might be useful:
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*
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* char *name; user-defined column name (format specification)
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* int reverse; sorting in reverse (sort specification)
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*
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* name in place of u
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* reverse in place of n
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*/
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typedef union sel_union {
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pid_t pid;
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uid_t uid;
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gid_t gid;
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dev_t tty;
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char cmd[8]; /* this is _not_ \0 terminated */
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} sel_union;
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typedef struct selection_node {
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struct selection_node *next;
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sel_union *u; /* used if selection type has a list of values */
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int n; /* used if selection type has a list of values */
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int typecode;
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} selection_node;
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typedef struct sort_node {
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struct sort_node *next;
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int (*sr)(const proc_t* P, const proc_t* Q); /* sort function */
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int reverse; /* can sort backwards */
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int typecode;
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} sort_node;
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typedef struct format_node {
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struct format_node *next;
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char *name; /* user can override default name */
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int (*pr)(void); /* print function */
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/* int (* const sr)(const proc_t* P, const proc_t* Q); */ /* sort function */
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int width;
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int pad;
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int vendor; /* Vendor that invented this */
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int flags;
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int typecode;
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} format_node;
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typedef struct format_struct {
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const char *spec; /* format specifier */
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const char *head; /* default header in the POSIX locale */
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int (* const pr)(void); /* print function */
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int (* const sr)(const proc_t* P, const proc_t* Q); /* sort function */
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const int width;
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const int pad; /* could be second width */
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const int vendor; /* Where does this come from? */
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const int flags;
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} format_struct;
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/* though ps-specific, needed by general file */
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typedef struct macro_struct {
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const char *spec; /* format specifier */
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const char *head; /* default header in the POSIX locale */
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} macro_struct;
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/**************** PS TYPEDEF ***********************/
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typedef struct aix_struct {
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const int desc; /* 1-character format code */
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const char *spec; /* format specifier */
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const char *head; /* default header in the POSIX locale */
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} aix_struct;
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typedef struct shortsort_struct {
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const int desc; /* 1-character format code */
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const char *spec; /* format specifier */
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} shortsort_struct;
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/* Save these options for later: -o o -O O --format --sort */
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typedef struct sf_node {
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struct sf_node *next; /* next arg */
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format_node *f_cooked; /* convert each arg alone, then merge */
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sort_node *s_cooked; /* convert each arg alone, then merge */
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char *sf;
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int sf_code;
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} sf_node;
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/*********************** GENERAL GLOBALS *************************/
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/* escape.c */
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extern int escape_strlist(char *dst, const char **src, size_t n);
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extern int escape_str(char *dst, const char *src, size_t n);
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extern int octal_escape_str(char *dst, const char *src, size_t n);
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extern int simple_escape_str(char *dst, const char *src, size_t n);
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/********************* UNDECIDED GLOBALS **************/
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/*
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* fputs(3) should (as in "good behavior") return the number of
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* characters written as it does on Digital Unix, AIX, Irix, and SunOS.
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* I'll assume glibc 2.1 has this extremely useful feature.
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*
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* Note: code ported from other systems will keep breaking until
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* the library is updated. You should patch the library itself if
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* at all possible. (for example, distributers who build libc from
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* source with automatic patching as part of the build process)
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*/
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#if defined __GLIBC__ && ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) || __GLIBC__ > 2)
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#warning Hopefully fputs(3) has been modernized...
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#else
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#define EMULATE_FPUTS
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#define fputs something_to_avoid_libc_troubles
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static inline int fputs(const char *s, FILE *fp){
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return fwrite(s,1,strlen(s),fp);
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/* return fprintf(fp, "%s", s); */
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}
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#endif
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/* output.c */
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extern void show_one_proc(proc_t* p);
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extern void print_format_specifiers(void);
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extern const aix_struct *search_aix_array(const int findme);
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extern const shortsort_struct *search_shortsort_array(const int findme);
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extern const format_struct *search_format_array(const char *findme);
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extern const macro_struct *search_macro_array(const char *findme);
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extern void init_output(void);
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/* global.c */
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extern void reset_global(void);
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/* global.c */
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extern int all_processes;
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extern char *bsd_j_format;
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extern char *bsd_l_format;
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extern char *bsd_s_format;
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extern char *bsd_u_format;
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extern char *bsd_v_format;
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extern int bsd_c_option;
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extern int bsd_e_option;
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extern uid_t cached_euid;
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extern dev_t cached_tty;
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extern char forest_prefix[4 * 32*1024 + 100];
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extern int forest_type;
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extern unsigned format_flags; /* -l -f l u s -j... */
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extern format_node *format_list; /* digested formatting options */
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extern unsigned format_modifiers; /* -c -j -y -P -L... */
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extern int header_gap;
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extern int header_type; /* none, single, multi... */
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extern int include_dead_children;
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extern int lines_to_next_header;
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extern int max_line_width;
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extern const char *namelist_file;
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extern int negate_selection;
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extern unsigned personality;
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extern int prefer_bsd_defaults;
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extern int running_only;
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extern int screen_cols;
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extern int screen_rows;
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extern unsigned long seconds_since_boot;
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extern selection_node *selection_list;
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extern unsigned simple_select;
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extern sort_node *sort_list;
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extern char *sysv_f_format;
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extern char *sysv_fl_format;
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extern char *sysv_j_format;
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extern char *sysv_l_format;
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extern int unix_f_option;
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extern int user_is_number;
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extern int wchan_is_number;
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/************************* PS GLOBALS *********************/
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/* sortformat.c */
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extern int defer_sf_option(const char *arg, int source);
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extern const char *process_sf_options(int localbroken);
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extern void reset_sortformat(void);
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/* select.c */
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extern int want_this_proc(proc_t *buf);
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extern const char *select_bits_setup(void);
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/* help.c */
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extern const char *help_message;
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/* global.c */
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extern void self_info(void);
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/* parser.c */
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extern int arg_parse(int argc, char *argv[]);
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#endif
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