1*4887Schin /*********************************************************************** 2*4887Schin * * 3*4887Schin * This software is part of the ast package * 4*4887Schin * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5*4887Schin * and is licensed under the * 6*4887Schin * Common Public License, Version 1.0 * 7*4887Schin * by AT&T Knowledge Ventures * 8*4887Schin * * 9*4887Schin * A copy of the License is available at * 10*4887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 11*4887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12*4887Schin * * 13*4887Schin * Information and Software Systems Research * 14*4887Schin * AT&T Research * 15*4887Schin * Florham Park NJ * 16*4887Schin * * 17*4887Schin * Glenn Fowler <gsf@research.att.com> * 18*4887Schin * David Korn <dgk@research.att.com> * 19*4887Schin * Phong Vo <kpv@research.att.com> * 20*4887Schin * * 21*4887Schin ***********************************************************************/ 22*4887Schin #pragma prototyped 23*4887Schin /* 24*4887Schin * AT&T Bell Laboratories 25*4887Schin * force current command to run under dir preroot 26*4887Schin */ 27*4887Schin 28*4887Schin #include <ast.h> 29*4887Schin #include <preroot.h> 30*4887Schin 31*4887Schin #if FS_PREROOT 32*4887Schin 33*4887Schin #include <option.h> 34*4887Schin 35*4887Schin void 36*4887Schin setpreroot(register char** argv, const char* dir) 37*4887Schin { 38*4887Schin register char* s; 39*4887Schin register char** ap; 40*4887Schin int argc; 41*4887Schin char* cmd; 42*4887Schin char** av; 43*4887Schin char buf[PATH_MAX]; 44*4887Schin 45*4887Schin if ((argv || (argv = opt_info.argv)) && (dir || (dir = getenv(PR_BASE)) && *dir) && !ispreroot(dir) && (*(cmd = *argv++) == '/' || (cmd = pathpath(buf, cmd, NiL, PATH_ABSOLUTE|PATH_REGULAR|PATH_EXECUTE)))) 46*4887Schin { 47*4887Schin argc = 3; 48*4887Schin for (ap = argv; *ap++; argc++); 49*4887Schin if (av = newof(0, char*, argc, 0)) 50*4887Schin { 51*4887Schin ap = av; 52*4887Schin *ap++ = PR_COMMAND; 53*4887Schin *ap++ = dir; 54*4887Schin *ap++ = cmd; 55*4887Schin while (*ap++ = *argv++); 56*4887Schin if (!(s = getenv(PR_SILENT)) || !*s) 57*4887Schin { 58*4887Schin sfprintf(sfstderr, "+"); 59*4887Schin ap = av; 60*4887Schin while (s = *ap++) 61*4887Schin sfprintf(sfstderr, " %s", s); 62*4887Schin sfprintf(sfstderr, "\n"); 63*4887Schin sfsync(sfstderr); 64*4887Schin } 65*4887Schin execv(*av, av); 66*4887Schin free(av); 67*4887Schin } 68*4887Schin } 69*4887Schin } 70*4887Schin 71*4887Schin #else 72*4887Schin 73*4887Schin NoN(setpreroot) 74*4887Schin 75*4887Schin #endif 76