/* * Copyright (c) 1997-2004 Erez Zadok * Copyright (c) 1990 Jan-Simon Pendry * Copyright (c) 1990 Imperial College of Science, Technology & Medicine * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry at Imperial College, London. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgment: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * %W% (Berkeley) %G% * * $Id: util.c,v 1.3.2.4 2004/01/06 03:15:24 ezk Exp $ * */ /* * General Utilities. */ #ifdef HAVE_CONFIG_H # include #endif /* HAVE_CONFIG_H */ #include #include char * strnsave(const char *str, int len) { char *sp = (char *) xmalloc(len + 1); memmove(sp, str, len); sp[len] = 0; return sp; } /* * Concatenate three strings and store in buffer pointed to * by p, making p large enough to hold the strings */ char * str3cat(char *p, char *s1, char *s2, char *s3) { int l1 = strlen(s1); int l2 = strlen(s2); int l3 = strlen(s3); p = (char *) xrealloc(p, l1 + l2 + l3 + 1); memmove(p, s1, l1); memmove(p + l1, s2, l2); memmove(p + l1 + l2, s3, l3 + 1); return p; } /* * Make all the directories in the path. */ int mkdirs(char *path, int mode) { /* * take a copy in case path is in readonly store */ char *p2 = strdup(path); char *sp = p2; struct stat stb; int error_so_far = 0; /* * Skip through the string make the directories. * Mostly ignore errors - the result is tested at the end. * * This assumes we are root so that we can do mkdir in a * mode 555 directory... */ while ((sp = strchr(sp + 1, '/'))) { *sp = '\0'; if (mkdir(p2, mode) < 0) { error_so_far = errno; } else { #ifdef DEBUG dlog("mkdir(%s)", p2); #endif /* DEBUG */ } *sp = '/'; } if (mkdir(p2, mode) < 0) { error_so_far = errno; } else { #ifdef DEBUG dlog("mkdir(%s)", p2); #endif /* DEBUG */ } XFREE(p2); return stat(path, &stb) == 0 && (stb.st_mode & S_IFMT) == S_IFDIR ? 0 : error_so_far; } /* * Remove as many directories in the path as possible. * Give up if the directory doesn't appear to have * been created by Amd (not mode dr-x) or an rmdir * fails for any reason. */ void rmdirs(char *dir) { char *xdp = strdup(dir); char *dp; do { struct stat stb; /* * Try to find out whether this was * created by amd. Do this by checking * for owner write permission. */ if (stat(xdp, &stb) == 0 && (stb.st_mode & 0200) == 0) { if (rmdir(xdp) < 0) { if (errno != ENOTEMPTY && errno != EBUSY && errno != EEXIST && errno != EINVAL) plog(XLOG_ERROR, "rmdir(%s): %m", xdp); break; } else { #ifdef DEBUG dlog("rmdir(%s)", xdp); #endif /* DEBUG */ } } else { break; } dp = strrchr(xdp, '/'); if (dp) *dp = '\0'; } while (dp && dp > xdp); XFREE(xdp); }