diff options
Diffstat (limited to 'crypto/openssh/openbsd-compat/realpath.c')
| -rw-r--r-- | crypto/openssh/openbsd-compat/realpath.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/crypto/openssh/openbsd-compat/realpath.c b/crypto/openssh/openbsd-compat/realpath.c deleted file mode 100644 index b4a05db95314..000000000000 --- a/crypto/openssh/openbsd-compat/realpath.c +++ /dev/null @@ -1,166 +0,0 @@ -/* - * Copyright (c) 1994 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Jan-Simon Pendry. - * - * 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. - * - * 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. - */ - -#include "includes.h" - -#if !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH) - -#if defined(LIBC_SCCS) && !defined(lint) -static char *rcsid = "$OpenBSD: realpath.c,v 1.6 2002/01/12 16:24:35 millert Exp $"; -#endif /* LIBC_SCCS and not lint */ - -#include <sys/param.h> -#include <sys/stat.h> - -#include <errno.h> -#include <fcntl.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -/* - * MAXSYMLINKS - */ -#ifndef MAXSYMLINKS -#define MAXSYMLINKS 5 -#endif - -/* - * char *realpath(const char *path, char resolved_path[MAXPATHLEN]); - * - * Find the real name of path, by removing all ".", ".." and symlink - * components. Returns (resolved) on success, or (NULL) on failure, - * in which case the path which caused trouble is left in (resolved). - */ -char * -realpath(const char *path, char *resolved) -{ - struct stat sb; - int fd, n, rootd, serrno = 0; - char *p, *q, wbuf[MAXPATHLEN], start[MAXPATHLEN]; - int symlinks = 0; - - /* Save the starting point. */ - getcwd(start,MAXPATHLEN); - if ((fd = open(".", O_RDONLY)) < 0) { - (void)strcpy(resolved, "."); - return (NULL); - } - close(fd); - - /* Convert "." -> "" to optimize away a needless lstat() and chdir() */ - if (path[0] == '.' && path[1] == '\0') - path = ""; - - /* - * Find the dirname and basename from the path to be resolved. - * Change directory to the dirname component. - * lstat the basename part. - * if it is a symlink, read in the value and loop. - * if it is a directory, then change to that directory. - * get the current directory name and append the basename. - */ - strlcpy(resolved, path, MAXPATHLEN); -loop: - q = strrchr(resolved, '/'); - if (q != NULL) { - p = q + 1; - if (q == resolved) - q = "/"; - else { - do { - --q; - } while (q > resolved && *q == '/'); - q[1] = '\0'; - q = resolved; - } - if (chdir(q) < 0) - goto err1; - } else - p = resolved; - - /* Deal with the last component. */ - if (*p != '\0' && lstat(p, &sb) == 0) { - if (S_ISLNK(sb.st_mode)) { - if (++symlinks > MAXSYMLINKS) { - serrno = ELOOP; - goto err1; - } - n = readlink(p, resolved, MAXPATHLEN-1); - if (n < 0) - goto err1; - resolved[n] = '\0'; - goto loop; - } - if (S_ISDIR(sb.st_mode)) { - if (chdir(p) < 0) - goto err1; - p = ""; - } - } - - /* - * Save the last component name and get the full pathname of - * the current directory. - */ - (void)strcpy(wbuf, p); - if (getcwd(resolved, MAXPATHLEN) == 0) - goto err1; - - /* - * Join the two strings together, ensuring that the right thing - * happens if the last component is empty, or the dirname is root. - */ - if (resolved[0] == '/' && resolved[1] == '\0') - rootd = 1; - else - rootd = 0; - - if (*wbuf) { - if (strlen(resolved) + strlen(wbuf) + rootd + 1 > MAXPATHLEN) { - serrno = ENAMETOOLONG; - goto err1; - } - if (rootd == 0) - (void)strcat(resolved, "/"); - (void)strcat(resolved, wbuf); - } - - /* Go back to where we came from. */ - if (chdir(start) < 0) { - serrno = errno; - goto err2; - } - return (resolved); - -err1: chdir(start); -err2: errno = serrno; - return (NULL); -} -#endif /* !defined(HAVE_REALPATH) || defined(BROKEN_REALPATH) */ |