1/* Locating a program in PATH. 2 Copyright (C) 2001-2003 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 3 of the License, or 8 (at your option) 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, see <http://www.gnu.org/licenses/>. */ 17 18 19#ifdef __cplusplus 20extern "C" { 21#endif 22 23 24/* Look up a program in the PATH. 25 Attempt to determine the pathname that would be called by execlp/execvp 26 of PROGNAME. If successful, return a pathname containing a slash 27 (either absolute or relative to the current directory). Otherwise, 28 return PROGNAME unmodified. 29 Because of the latter case, callers should use execlp/execvp, not 30 execl/execv on the returned pathname. 31 The returned string is freshly malloc()ed if it is != PROGNAME. */ 32extern const char *find_in_path (const char *progname); 33 34 35#ifdef __cplusplus 36} 37#endif 38