xref: /onnv-gate/usr/src/lib/libast/common/vec/vecfile.c (revision 12068:08a39a083754)
14887Schin /***********************************************************************
24887Schin *                                                                      *
34887Schin *               This software is part of the ast package               *
4*12068SRoger.Faulkner@Oracle.COM *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
54887Schin *                      and is licensed under the                       *
64887Schin *                  Common Public License, Version 1.0                  *
78462SApril.Chin@Sun.COM *                    by AT&T Intellectual Property                     *
84887Schin *                                                                      *
94887Schin *                A copy of the License is available at                 *
104887Schin *            http://www.opensource.org/licenses/cpl1.0.txt             *
114887Schin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
124887Schin *                                                                      *
134887Schin *              Information and Software Systems Research               *
144887Schin *                            AT&T Research                             *
154887Schin *                           Florham Park NJ                            *
164887Schin *                                                                      *
174887Schin *                 Glenn Fowler <gsf@research.att.com>                  *
184887Schin *                  David Korn <dgk@research.att.com>                   *
194887Schin *                   Phong Vo <kpv@research.att.com>                    *
204887Schin *                                                                      *
214887Schin ***********************************************************************/
224887Schin #pragma prototyped
234887Schin /*
244887Schin  * Glenn Fowler
254887Schin  * AT&T Research
264887Schin  *
274887Schin  * string vector load support
284887Schin  */
294887Schin 
304887Schin #include <ast.h>
314887Schin #include <ls.h>
324887Schin #include <vecargs.h>
334887Schin 
344887Schin /*
354887Schin  * load a string vector from lines in file
364887Schin  */
374887Schin 
384887Schin char**
vecfile(const char * file)394887Schin vecfile(const char* file)
404887Schin {
414887Schin 	register int	n;
424887Schin 	register char*	buf;
434887Schin 	register char**	vec;
444887Schin 	int		fd;
454887Schin 	struct stat	st;
464887Schin 
474887Schin 	vec = 0;
484887Schin 	if ((fd = open(file, O_RDONLY)) >= 0)
494887Schin 	{
504887Schin 		if (!fstat(fd, &st) && S_ISREG(st.st_mode) && (n = st.st_size) > 0 && (buf = newof(0, char, n + 1, 0)))
514887Schin 		{
524887Schin 			if (read(fd, buf, n) == n)
534887Schin 			{
544887Schin 				buf[n] = 0;
554887Schin 				vec = vecload(buf);
564887Schin 			}
574887Schin 			if (!vec) free(buf);
584887Schin 		}
594887Schin 		close(fd);
604887Schin 	}
614887Schin 	return(vec);
624887Schin }
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