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 * Glenn Fowler
25*b30d1939SAndy Fiddaman * AT&T Bell Laboratories
26*b30d1939SAndy Fiddaman *
27*b30d1939SAndy Fiddaman * single dir support for pathaccess()
28*b30d1939SAndy Fiddaman */
29*b30d1939SAndy Fiddaman
30*b30d1939SAndy Fiddaman #define _AST_API_H 1
31*b30d1939SAndy Fiddaman
32*b30d1939SAndy Fiddaman #include <ast.h>
33*b30d1939SAndy Fiddaman
34*b30d1939SAndy Fiddaman /*
35*b30d1939SAndy Fiddaman * building 3d flirts with the dark side
36*b30d1939SAndy Fiddaman */
37*b30d1939SAndy Fiddaman
38*b30d1939SAndy Fiddaman #if _BLD_3d
39*b30d1939SAndy Fiddaman
40*b30d1939SAndy Fiddaman #undef pathcat
41*b30d1939SAndy Fiddaman #define pathcat_20100601 _3d_pathcat
42*b30d1939SAndy Fiddaman
43*b30d1939SAndy Fiddaman #else
44*b30d1939SAndy Fiddaman
45*b30d1939SAndy Fiddaman char*
pathcat(char * path,const char * dirs,int sep,const char * a,const char * b)46*b30d1939SAndy Fiddaman pathcat(char* path, const char* dirs, int sep, const char* a, const char* b)
47*b30d1939SAndy Fiddaman {
48*b30d1939SAndy Fiddaman return pathcat_20100601(dirs, sep, a, b, path, PATH_MAX);
49*b30d1939SAndy Fiddaman }
50*b30d1939SAndy Fiddaman
51*b30d1939SAndy Fiddaman #endif
52*b30d1939SAndy Fiddaman
53*b30d1939SAndy Fiddaman #undef _AST_API
54*b30d1939SAndy Fiddaman
55*b30d1939SAndy Fiddaman #include <ast_api.h>
56*b30d1939SAndy Fiddaman
57*b30d1939SAndy Fiddaman char*
pathcat_20100601(register const char * dirs,int sep,const char * a,register const char * b,char * path,size_t size)58*b30d1939SAndy Fiddaman pathcat_20100601(register const char* dirs, int sep, const char* a, register const char* b, char* path, size_t size)
59*b30d1939SAndy Fiddaman {
60*b30d1939SAndy Fiddaman register char* s;
61*b30d1939SAndy Fiddaman register char* e;
62*b30d1939SAndy Fiddaman
63*b30d1939SAndy Fiddaman s = path;
64*b30d1939SAndy Fiddaman e = path + size;
65*b30d1939SAndy Fiddaman while (*dirs && *dirs != sep)
66*b30d1939SAndy Fiddaman {
67*b30d1939SAndy Fiddaman if (s >= e)
68*b30d1939SAndy Fiddaman return 0;
69*b30d1939SAndy Fiddaman *s++ = *dirs++;
70*b30d1939SAndy Fiddaman }
71*b30d1939SAndy Fiddaman if (s != path)
72*b30d1939SAndy Fiddaman {
73*b30d1939SAndy Fiddaman if (s >= e)
74*b30d1939SAndy Fiddaman return 0;
75*b30d1939SAndy Fiddaman *s++ = '/';
76*b30d1939SAndy Fiddaman }
77*b30d1939SAndy Fiddaman if (a)
78*b30d1939SAndy Fiddaman {
79*b30d1939SAndy Fiddaman while (*s = *a++)
80*b30d1939SAndy Fiddaman if (++s >= e)
81*b30d1939SAndy Fiddaman return 0;
82*b30d1939SAndy Fiddaman if (b)
83*b30d1939SAndy Fiddaman {
84*b30d1939SAndy Fiddaman if (s >= e)
85*b30d1939SAndy Fiddaman return 0;
86*b30d1939SAndy Fiddaman *s++ = '/';
87*b30d1939SAndy Fiddaman }
88*b30d1939SAndy Fiddaman }
89*b30d1939SAndy Fiddaman else if (!b)
90*b30d1939SAndy Fiddaman b = ".";
91*b30d1939SAndy Fiddaman if (b)
92*b30d1939SAndy Fiddaman do
93*b30d1939SAndy Fiddaman {
94*b30d1939SAndy Fiddaman if (s >= e)
95*b30d1939SAndy Fiddaman return 0;
96*b30d1939SAndy Fiddaman } while (*s++ = *b++);
97*b30d1939SAndy Fiddaman return *dirs ? (char*)++dirs : 0;
98*b30d1939SAndy Fiddaman }
99