1 /* Shell quoting. 2 Copyright (C) 2001-2002, 2004 Free Software Foundation, Inc. 3 Written by Bruno Haible <haible@clisp.cons.org>, 2001. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2, or (at your option) 8 any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software Foundation, 17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 18 19 /* When passing a command to a shell, we must quote the program name and 20 arguments, since Unix shells interpret characters like " ", "'", "<", ">", 21 "$" etc. in a special way. */ 22 23 #include <stddef.h> 24 25 /* Returns the number of bytes needed for the quoted string. */ 26 extern size_t shell_quote_length (const char *string); 27 28 /* Copies the quoted string to p and returns the incremented p. 29 There must be room for shell_quote_length (string) + 1 bytes at p. */ 30 extern char * shell_quote_copy (char *p, const char *string); 31 32 /* Returns the freshly allocated quoted string. */ 33 extern char * shell_quote (const char *string); 34 35 /* Returns a freshly allocated string containing all argument strings, quoted, 36 separated through spaces. */ 37 extern char * shell_quote_argv (char **argv); 38