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Diffstat (limited to 'openbsd-compat/realpath.c')
-rw-r--r--openbsd-compat/realpath.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/openbsd-compat/realpath.c b/openbsd-compat/realpath.c
index d2f34dde0..e4729a808 100644
--- a/openbsd-compat/realpath.c
+++ b/openbsd-compat/realpath.c
@@ -1,4 +1,4 @@
1/* $OpenBSD: realpath.c,v 1.17 2014/10/18 20:43:52 doug Exp $ */ 1/* $OpenBSD: realpath.c,v 1.18 2014/10/19 03:56:28 doug Exp $ */
2/* 2/*
3 * Copyright (c) 2003 Constantin S. Svintsoff <kostik@iclub.nsu.ru> 3 * Copyright (c) 2003 Constantin S. Svintsoff <kostik@iclub.nsu.ru>
4 * 4 *
@@ -62,10 +62,6 @@ realpath(const char *path, char *resolved)
62 int serrno, slen, mem_allocated; 62 int serrno, slen, mem_allocated;
63 char left[PATH_MAX], next_token[PATH_MAX], symlink[PATH_MAX]; 63 char left[PATH_MAX], next_token[PATH_MAX], symlink[PATH_MAX];
64 64
65 if (path == NULL) {
66 errno = EINVAL;
67 return (NULL);
68 }
69 if (path[0] == '\0') { 65 if (path[0] == '\0') {
70 errno = ENOENT; 66 errno = ENOENT;
71 return (NULL); 67 return (NULL);
@@ -151,15 +147,22 @@ realpath(const char *path, char *resolved)
151 } 147 }
152 148
153 /* 149 /*
154 * Append the next path component and lstat() it. 150 * Append the next path component and lstat() it. If
151 * lstat() fails we still can return successfully if
152 * there are no more path components left.
155 */ 153 */
156 resolved_len = strlcat(resolved, next_token, PATH_MAX); 154 resolved_len = strlcat(resolved, next_token, PATH_MAX);
157 if (resolved_len >= PATH_MAX) { 155 if (resolved_len >= PATH_MAX) {
158 errno = ENAMETOOLONG; 156 errno = ENAMETOOLONG;
159 goto err; 157 goto err;
160 } 158 }
161 if (lstat(resolved, &sb) != 0) 159 if (lstat(resolved, &sb) != 0) {
160 if (errno == ENOENT && p == NULL) {
161 errno = serrno;
162 return (resolved);
163 }
162 goto err; 164 goto err;
165 }
163 if (S_ISLNK(sb.st_mode)) { 166 if (S_ISLNK(sb.st_mode)) {
164 if (symlinks++ > MAXSYMLINKS) { 167 if (symlinks++ > MAXSYMLINKS) {
165 errno = ELOOP; 168 errno = ELOOP;
@@ -202,9 +205,6 @@ realpath(const char *path, char *resolved)
202 } 205 }
203 } 206 }
204 left_len = strlcpy(left, symlink, sizeof(left)); 207 left_len = strlcpy(left, symlink, sizeof(left));
205 } else if (!S_ISDIR(sb.st_mode) && p != NULL) {
206 errno = ENOTDIR;
207 goto err;
208 } 208 }
209 } 209 }
210 210