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 28*b30d1939SAndy Fiddaman #include "univlib.h" 29*b30d1939SAndy Fiddaman 30*b30d1939SAndy Fiddaman #ifdef UNIV_MAX 31*b30d1939SAndy Fiddaman 32*b30d1939SAndy Fiddaman #include <ctype.h> 33*b30d1939SAndy Fiddaman 34*b30d1939SAndy Fiddaman #endif 35*b30d1939SAndy Fiddaman 36*b30d1939SAndy Fiddaman /* 37*b30d1939SAndy Fiddaman * return external representation for symbolic link text of name in buf 38*b30d1939SAndy Fiddaman * the link text string length is returned 39*b30d1939SAndy Fiddaman */ 40*b30d1939SAndy Fiddaman 41*b30d1939SAndy Fiddaman int pathgetlink(const char * name,char * buf,int siz)42*b30d1939SAndy Fiddamanpathgetlink(const char* name, char* buf, int siz) 43*b30d1939SAndy Fiddaman { 44*b30d1939SAndy Fiddaman int n; 45*b30d1939SAndy Fiddaman 46*b30d1939SAndy Fiddaman if ((n = readlink(name, buf, siz)) < 0) return(-1); 47*b30d1939SAndy Fiddaman if (n >= siz) 48*b30d1939SAndy Fiddaman { 49*b30d1939SAndy Fiddaman errno = EINVAL; 50*b30d1939SAndy Fiddaman return(-1); 51*b30d1939SAndy Fiddaman } 52*b30d1939SAndy Fiddaman buf[n] = 0; 53*b30d1939SAndy Fiddaman #ifdef UNIV_MAX 54*b30d1939SAndy Fiddaman if (isspace(*buf)) 55*b30d1939SAndy Fiddaman { 56*b30d1939SAndy Fiddaman register char* s; 57*b30d1939SAndy Fiddaman register char* t; 58*b30d1939SAndy Fiddaman register char* u; 59*b30d1939SAndy Fiddaman register char* v; 60*b30d1939SAndy Fiddaman int match = 0; 61*b30d1939SAndy Fiddaman char tmp[PATH_MAX]; 62*b30d1939SAndy Fiddaman 63*b30d1939SAndy Fiddaman s = buf; 64*b30d1939SAndy Fiddaman t = tmp; 65*b30d1939SAndy Fiddaman while (isalnum(*++s) || *s == '_' || *s == '.'); 66*b30d1939SAndy Fiddaman if (*s++) 67*b30d1939SAndy Fiddaman { 68*b30d1939SAndy Fiddaman for (;;) 69*b30d1939SAndy Fiddaman { 70*b30d1939SAndy Fiddaman if (!*s || isspace(*s)) 71*b30d1939SAndy Fiddaman { 72*b30d1939SAndy Fiddaman if (match) 73*b30d1939SAndy Fiddaman { 74*b30d1939SAndy Fiddaman *t = 0; 75*b30d1939SAndy Fiddaman n = t - tmp; 76*b30d1939SAndy Fiddaman strcpy(buf, tmp); 77*b30d1939SAndy Fiddaman } 78*b30d1939SAndy Fiddaman break; 79*b30d1939SAndy Fiddaman } 80*b30d1939SAndy Fiddaman if (t >= &tmp[sizeof(tmp)]) break; 81*b30d1939SAndy Fiddaman *t++ = *s++; 82*b30d1939SAndy Fiddaman if (!match && t < &tmp[sizeof(tmp) - univ_size + 1]) for (n = 0; n < UNIV_MAX; n++) 83*b30d1939SAndy Fiddaman { 84*b30d1939SAndy Fiddaman if (*(v = s - 1) == *(u = univ_name[n])) 85*b30d1939SAndy Fiddaman { 86*b30d1939SAndy Fiddaman while (*u && *v++ == *u) u++; 87*b30d1939SAndy Fiddaman if (!*u) 88*b30d1939SAndy Fiddaman { 89*b30d1939SAndy Fiddaman match = 1; 90*b30d1939SAndy Fiddaman strcpy(t - 1, univ_cond); 91*b30d1939SAndy Fiddaman t += univ_size - 1; 92*b30d1939SAndy Fiddaman s = v; 93*b30d1939SAndy Fiddaman break; 94*b30d1939SAndy Fiddaman } 95*b30d1939SAndy Fiddaman } 96*b30d1939SAndy Fiddaman } 97*b30d1939SAndy Fiddaman } 98*b30d1939SAndy Fiddaman } 99*b30d1939SAndy Fiddaman } 100*b30d1939SAndy Fiddaman #endif 101*b30d1939SAndy Fiddaman return(n); 102*b30d1939SAndy Fiddaman } 103