1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Kenneth Almquist. 7 * 8 * %sccs.include.redist.c% 9 * 10 * @(#)eval.h 5.2 (Berkeley) 04/12/91 11 */ 12 13 extern char *commandname; /* currently executing command */ 14 extern int exitstatus; /* exit status of last command */ 15 extern struct strlist *cmdenviron; /* environment for builtin command */ 16 17 18 struct backcmd { /* result of evalbackcmd */ 19 int fd; /* file descriptor to read from */ 20 char *buf; /* buffer */ 21 int nleft; /* number of chars in buffer */ 22 struct job *jp; /* job structure for command */ 23 }; 24 25 26 #ifdef __STDC__ 27 void evalstring(char *); 28 union node; /* BLETCH for ansi C */ 29 void evaltree(union node *, int); 30 void evalbackcmd(union node *, struct backcmd *); 31 #else 32 void evalstring(); 33 void evaltree(); 34 void evalbackcmd(); 35 #endif 36 37 /* in_function returns nonzero if we are currently evaluating a function */ 38 #define in_function() funcnest 39 extern int funcnest; 40