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- /*
- * Copyright (c) 1990 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND CARNEGIE MELLON UNIVERSITY
- * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT
- * SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
- * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
- * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Users of this software agree to return to Carnegie Mellon any
- * improvements or extensions that they make and grant Carnegie the
- * rights to redistribute these changes.
- *
- * Export of this software is permitted only after complying with the
- * regulations of the U.S. Deptartment of Commerce relating to the
- * Export of Technical Data.
- */
- /* strarg -- parse a string
- *
- * Usage: p = strarg (ptr, brk, prompt, defalt, buf);
- * char *p, **ptr, *brk, *prompt, *defalt, *buf;
- *
- * Strarg will parse an argument from the string pointed to by "ptr",
- * bumping ptr to point to the next argument in the string.
- * The argument parsed will be copied into "buf". If there is no
- * argument, then getstr() will be called, and the value placed into
- * buf. In any event, the address of buf is returned as a value.
- * "Brk" is the list of characters which terminate an argument;
- * if 0, then " " is used.
- *
- * HISTORY
- * $Log: strarg.c,v $
- * Revision 1.2 90/12/11 17:59:59 mja
- * Add copyright/disclaimer for distribution.
- *
- * 20-Nov-79 Steven Shafer (sas) at Carnegie-Mellon University
- * Rewritten for VAX.
- *
- */
-
- #include <libc.h>
-
- char *strarg (ptr, brk, prompt, defalt, buf)
- char **ptr, *brk, *prompt, *defalt, *buf;
- {
- register char *arg;
-
- arg = nxtarg (ptr,brk); /* parse an argument */
- fflush (stdout);
-
- if (*arg && strcmp (arg,"?")!=0) strcpy (buf,arg);
- else getstr (prompt,defalt,buf);
-
- return (buf);
- }
-