1*b30d1939SAndy Fiddaman /***********************************************************************
2*b30d1939SAndy Fiddaman * *
3*b30d1939SAndy Fiddaman * This software is part of the ast package *
4*b30d1939SAndy Fiddaman * Copyright (c) 1985-2011 AT&T Intellectual Property *
5*b30d1939SAndy Fiddaman * and is licensed under the *
6*b30d1939SAndy Fiddaman * Eclipse Public License, Version 1.0 *
7*b30d1939SAndy Fiddaman * by AT&T Intellectual Property *
8*b30d1939SAndy Fiddaman * *
9*b30d1939SAndy Fiddaman * A copy of the License is available at *
10*b30d1939SAndy Fiddaman * http://www.eclipse.org/org/documents/epl-v10.html *
11*b30d1939SAndy Fiddaman * (with md5 checksum b35adb5213ca9657e911e9befb180842) *
12*b30d1939SAndy Fiddaman * *
13*b30d1939SAndy Fiddaman * Information and Software Systems Research *
14*b30d1939SAndy Fiddaman * AT&T Research *
15*b30d1939SAndy Fiddaman * Florham Park NJ *
16*b30d1939SAndy Fiddaman * *
17*b30d1939SAndy Fiddaman * Glenn Fowler <gsf@research.att.com> *
18*b30d1939SAndy Fiddaman * David Korn <dgk@research.att.com> *
19*b30d1939SAndy Fiddaman * Phong Vo <kpv@research.att.com> *
20*b30d1939SAndy Fiddaman * *
21*b30d1939SAndy Fiddaman ***********************************************************************/
22*b30d1939SAndy Fiddaman #pragma prototyped
23*b30d1939SAndy Fiddaman /*
24*b30d1939SAndy Fiddaman * resolvepath implementation
25*b30d1939SAndy Fiddaman */
26*b30d1939SAndy Fiddaman
27*b30d1939SAndy Fiddaman #define resolvepath ______resolvepath
28*b30d1939SAndy Fiddaman
29*b30d1939SAndy Fiddaman #include <ast.h>
30*b30d1939SAndy Fiddaman #include <error.h>
31*b30d1939SAndy Fiddaman
32*b30d1939SAndy Fiddaman #undef resolvepath
33*b30d1939SAndy Fiddaman
34*b30d1939SAndy Fiddaman #undef _def_map_ast
35*b30d1939SAndy Fiddaman #include <ast_map.h>
36*b30d1939SAndy Fiddaman #undef _AST_API_H
37*b30d1939SAndy Fiddaman #include <ast_api.h>
38*b30d1939SAndy Fiddaman
39*b30d1939SAndy Fiddaman #if defined(__EXPORT__)
40*b30d1939SAndy Fiddaman #define extern __EXPORT__
41*b30d1939SAndy Fiddaman #endif
42*b30d1939SAndy Fiddaman
43*b30d1939SAndy Fiddaman extern int
resolvepath(const char * file,char * path,size_t size)44*b30d1939SAndy Fiddaman resolvepath(const char* file, char* path, size_t size)
45*b30d1939SAndy Fiddaman {
46*b30d1939SAndy Fiddaman register char* s;
47*b30d1939SAndy Fiddaman register int n;
48*b30d1939SAndy Fiddaman register int r;
49*b30d1939SAndy Fiddaman
50*b30d1939SAndy Fiddaman r = *file != '/';
51*b30d1939SAndy Fiddaman n = strlen(file) + r + 1;
52*b30d1939SAndy Fiddaman if (n >= size)
53*b30d1939SAndy Fiddaman {
54*b30d1939SAndy Fiddaman #ifdef ENAMETOOLONG
55*b30d1939SAndy Fiddaman errno = ENAMETOOLONG;
56*b30d1939SAndy Fiddaman #else
57*b30d1939SAndy Fiddaman errno = ENOMEM;
58*b30d1939SAndy Fiddaman #endif
59*b30d1939SAndy Fiddaman return 0;
60*b30d1939SAndy Fiddaman }
61*b30d1939SAndy Fiddaman if (!r)
62*b30d1939SAndy Fiddaman s = path;
63*b30d1939SAndy Fiddaman else if (!getcwd(path, size - n))
64*b30d1939SAndy Fiddaman return 0;
65*b30d1939SAndy Fiddaman else
66*b30d1939SAndy Fiddaman {
67*b30d1939SAndy Fiddaman s = path + strlen(path);
68*b30d1939SAndy Fiddaman *s++ = '/';
69*b30d1939SAndy Fiddaman }
70*b30d1939SAndy Fiddaman strlcpy(s, file, size - (s - path));
71*b30d1939SAndy Fiddaman return (s = pathcanon(path, size, PATH_PHYSICAL|PATH_DOTDOT|PATH_EXISTS)) ? (s - path) : -1;
72*b30d1939SAndy Fiddaman }
73