cleanup-cruft
parent
a3cc35f063
commit
c6c9f30607
@ -1 +0,0 @@
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trq.map
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@ -1,390 +0,0 @@
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/*
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* test(1); version 7-like -- author Erik Baalbergen
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* modified by Eric Gisin to be used as built-in.
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* modified by Arnold Robbins to add SVR3 compatibility
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* (-x -c -b -p -u -g -k) plus Korn's -L -nt -ot -ef and new -S (socket).
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*/
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static char *RCSid = "$Id: c_test.c,v 3.3 89/03/27 15:47:25 egisin Exp $";
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#include <stddef.h>
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/*#include <string.h>*/
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#include <signal.h>
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#include <errno.h>
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#include <setjmp.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "bltin.h"
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/* test(1) accepts the following grammar:
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oexpr ::= aexpr | aexpr "-o" oexpr ;
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aexpr ::= nexpr | nexpr "-a" aexpr ;
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nexpr ::= primary ! "!" primary
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primary ::= unary-operator operand
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| operand binary-operator operand
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| operand
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| "(" oexpr ")"
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;
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unary-operator ::= "-r"|"-w"|"-x"|"-f"|"-d"|"-c"|"-b"|"-p"|
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"-u"|"-g"|"-k"|"-s"|"-t"|"-z"|"-n"|"-o"|"-O"|"-G"|"-L"|"-S";
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binary-operator ::= "="|"!="|"-eq"|"-ne"|"-ge"|"-gt"|"-le"|"-lt"|
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"-nt"|"-ot"|"-ef";
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operand ::= <any legal UNIX file name>
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*/
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#define evaluate(x) getn(x)
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#define errorf error
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#define EOI 0
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#define FILRD 1
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#define FILWR 2
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#define FILREG 3
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#define FILID 4
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#define FILGZ 5
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#define FILTT 6
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#define STZER 7
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#define STNZE 8
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#define STEQL 9
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#define STNEQ 10
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#define INTEQ 11
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#define INTNE 12
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#define INTGE 13
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#define INTGT 14
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#define INTLE 15
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#define INTLT 16
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#define UNOT 17
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#define BAND 18
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#define BOR 19
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#define LPAREN 20
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#define RPAREN 21
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#define OPERAND 22
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#define FILEX 23
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#define FILCDEV 24
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#define FILBDEV 25
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#define FILFIFO 26
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#define FILSETU 27
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#define FILSETG 28
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#define FILSTCK 29
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#define FILSYM 30
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#define FILNT 31
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#define FILOT 32
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#define FILEQ 33
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#define FILSOCK 34
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#define FILUID 35
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#define FILGID 36
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#define OPTION 37
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#define UNOP 1
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#define BINOP 2
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#define BUNOP 3
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#define BBINOP 4
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#define PAREN 5
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struct t_op {
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char *op_text;
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short op_num, op_type;
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} const ops [] = {
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{"-r", FILRD, UNOP},
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{"-w", FILWR, UNOP},
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{"-x", FILEX, UNOP},
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{"-f", FILREG, UNOP},
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{"-d", FILID, UNOP},
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{"-c", FILCDEV,UNOP},
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{"-b", FILBDEV,UNOP},
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{"-p", FILFIFO,UNOP},
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{"-u", FILSETU,UNOP},
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{"-g", FILSETG,UNOP},
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{"-k", FILSTCK,UNOP},
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{"-s", FILGZ, UNOP},
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{"-t", FILTT, UNOP},
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{"-z", STZER, UNOP},
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{"-n", STNZE, UNOP},
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#if 0 /* conficts with binary -o */
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{"-o", OPTION, UNOP},
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#endif
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{"-U", FILUID, UNOP},
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{"-G", FILGID, UNOP},
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{"-L", FILSYM, UNOP},
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{"-S", FILSOCK,UNOP},
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{"=", STEQL, BINOP},
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{"!=", STNEQ, BINOP},
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{"-eq", INTEQ, BINOP},
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{"-ne", INTNE, BINOP},
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{"-ge", INTGE, BINOP},
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{"-gt", INTGT, BINOP},
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{"-le", INTLE, BINOP},
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{"-lt", INTLT, BINOP},
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{"-nt", FILNT, BINOP},
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{"-ot", FILOT, BINOP},
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{"-ef", FILEQ, BINOP},
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{"!", UNOT, BUNOP},
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{"-a", BAND, BBINOP},
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{"-o", BOR, BBINOP},
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{"(", LPAREN, PAREN},
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{")", RPAREN, PAREN},
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{0, 0, 0}
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};
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char **t_wp;
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struct t_op const *t_wp_op;
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static void syntax();
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int
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testcmd(argc, wp)
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char **wp;
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{
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int res;
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t_wp = wp+1;
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if (strcmp(wp[0], "[") == 0) {
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while (*wp != NULL)
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wp++;
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if (strcmp(*--wp, "]") != 0)
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errorf("[: missing ]");
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*wp = NULL;
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}
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res = *t_wp == NULL || !oexpr(t_lex(*t_wp));
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if (*t_wp != NULL && *++t_wp != NULL)
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syntax(*t_wp, "unknown operand");
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return res;
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}
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static void
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syntax(op, msg)
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char *op;
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char *msg;
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{
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if (op && *op)
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errorf("%s: %s", op, msg);
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else
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errorf("%s", msg);
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}
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oexpr(n)
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{
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int res;
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res = aexpr(n);
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if (t_lex(*++t_wp) == BOR)
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return oexpr(t_lex(*++t_wp)) || res;
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t_wp--;
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return res;
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}
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aexpr(n)
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{
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int res;
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res = nexpr(n);
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if (t_lex(*++t_wp) == BAND)
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return aexpr(t_lex(*++t_wp)) && res;
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t_wp--;
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return res;
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}
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nexpr(n)
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int n; /* token */
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{
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if (n == UNOT)
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return !nexpr(t_lex(*++t_wp));
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return primary(n);
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}
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primary(n)
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int n; /* token */
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{
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register char *opnd1, *opnd2;
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int res;
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if (n == EOI)
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syntax(NULL, "argument expected");
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if (n == LPAREN) {
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res = oexpr(t_lex(*++t_wp));
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if (t_lex(*++t_wp) != RPAREN)
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syntax(NULL, "closing paren expected");
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return res;
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}
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if (t_wp_op && t_wp_op->op_type == UNOP) {
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/* unary expression */
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if (*++t_wp == NULL && n != FILTT)
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syntax(t_wp_op->op_text, "argument expected");
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switch (n) {
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/**
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case OPTION:
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return flag[option(*t_wp)];
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**/
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case STZER:
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return strlen(*t_wp) == 0;
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case STNZE:
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return strlen(*t_wp) != 0;
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case FILTT:
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if (**t_wp < '0' || **t_wp > '9')
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return filstat("0", n);
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default: /* all other FIL* */
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return filstat(*t_wp, n);
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}
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}
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opnd1 = *t_wp;
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(void) t_lex(*++t_wp);
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if (t_wp_op && t_wp_op->op_type == BINOP) {
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struct t_op const *op = t_wp_op;
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if ((opnd2 = *++t_wp) == (char *)0)
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syntax(op->op_text, "argument expected");
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switch (op->op_num) {
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case STEQL:
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return strcmp(opnd1, opnd2) == 0;
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case STNEQ:
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return strcmp(opnd1, opnd2) != 0;
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case INTEQ:
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return evaluate(opnd1) == evaluate(opnd2);
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case INTNE:
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return evaluate(opnd1) != evaluate(opnd2);
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case INTGE:
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return evaluate(opnd1) >= evaluate(opnd2);
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case INTGT:
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return evaluate(opnd1) > evaluate(opnd2);
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case INTLE:
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return evaluate(opnd1) <= evaluate(opnd2);
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case INTLT:
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return evaluate(opnd1) < evaluate(opnd2);
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case FILNT:
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return newerf (opnd1, opnd2);
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case FILOT:
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return olderf (opnd1, opnd2);
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case FILEQ:
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return equalf (opnd1, opnd2);
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}
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}
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t_wp--;
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return strlen(opnd1) > 0;
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}
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filstat(nm, mode)
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char *nm;
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{
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struct stat s;
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switch (mode) {
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case FILRD:
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return access(nm, 4) == 0;
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case FILWR:
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return access(nm, 2) == 0;
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case FILEX:
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return access(nm, 1) == 0;
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case FILREG:
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return stat(nm, &s) == 0 && (s.st_mode & S_IFMT) == S_IFREG;
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case FILID:
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return stat(nm, &s) == 0 && (s.st_mode & S_IFMT) == S_IFDIR;
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case FILCDEV:
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return stat(nm, &s) == 0 && (s.st_mode & S_IFMT) == S_IFCHR;
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case FILBDEV:
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return stat(nm, &s) == 0 && (s.st_mode & S_IFMT) == S_IFBLK;
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case FILFIFO:
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#ifdef S_IFIFO
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return stat(nm, &s) == 0 && (s.st_mode & S_IFMT) == S_IFIFO;
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#else
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return 0;
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#endif
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case FILSETU:
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return stat(nm, &s) == 0 && (s.st_mode & S_ISUID) == S_ISUID;
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case FILSETG:
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return stat(nm, &s) == 0 && (s.st_mode & S_ISGID) == S_ISGID;
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case FILSTCK:
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return stat(nm, &s) == 0 && (s.st_mode & S_ISVTX) == S_ISVTX;
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case FILGZ:
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return stat(nm, &s) == 0 && s.st_size > 0L;
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case FILTT:
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return isatty(getn(nm));
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case FILUID:
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return stat(nm, &s) == 0 && s.st_uid == geteuid();
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case FILGID:
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return stat(nm, &s) == 0 && s.st_gid == getegid();
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#ifdef S_IFLNK
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case FILSYM:
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return lstat(nm, &s) == 0 && (s.st_mode & S_IFMT) == S_IFLNK;
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#endif
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#ifdef S_IFSOCK
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case FILSOCK:
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return stat(nm, &s) == 0 && (s.st_mode & S_IFMT) == S_IFSOCK;
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#endif
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default:
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return 1;
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}
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}
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int
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t_lex(s)
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register char *s;
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{
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register struct t_op const *op = ops;
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if (s == 0) {
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t_wp_op = (struct t_op *)0;
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return EOI;
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}
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while (op->op_text) {
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if (strcmp(s, op->op_text) == 0) {
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t_wp_op = op;
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return op->op_num;
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}
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op++;
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}
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t_wp_op = (struct t_op *)0;
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return OPERAND;
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}
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newerf (f1, f2)
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char *f1, *f2;
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{
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struct stat b1, b2;
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return (stat (f1, &b1) == 0 &&
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stat (f2, &b2) == 0 &&
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b1.st_mtime > b2.st_mtime);
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}
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olderf (f1, f2)
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char *f1, *f2;
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{
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struct stat b1, b2;
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return (stat (f1, &b1) == 0 &&
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stat (f2, &b2) == 0 &&
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b1.st_mtime < b2.st_mtime);
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}
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equalf (f1, f2)
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char *f1, *f2;
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{
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struct stat b1, b2;
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return (stat (f1, &b1) == 0 &&
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stat (f2, &b2) == 0 &&
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b1.st_dev == b2.st_dev &&
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b1.st_ino == b2.st_ino);
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}
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/* atoi with error detection */
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getn(as)
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char *as;
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{
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register char *s;
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register int n;
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s = as;
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if (*s == '-')
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s++;
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for (n = 0; *s >= '0' && *s <= '9'; s++)
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n = (n*10) + (*s-'0');
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if (*s)
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errorf("%s: bad number", as);
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return (*as == '-') ? -n : n;
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}
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