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Update our FreeBSD realpath(3) to upstream head.

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Change-Id: I8c89728184ecd2c1a28a05cefa84a5037d28b552
This commit is contained in:
Elliott Hughes 2014-09-30 16:15:42 -07:00
parent 1f7d5ac538
commit 31e072fc9b
2 changed files with 18 additions and 20 deletions
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26
libc/upstream-freebsd/lib/libc/stdlib/realpath.c
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@ -132,26 +132,7 @@ realpath(const char * __restrict path, char * __restrict resolved)
resolved[resolved_len] = '\0';
}
if (next_token[0] == '\0') {
/*
* Handle consequential slashes. The path
* before slash shall point to a directory.
*
* Only the trailing slashes are not covered
* by other checks in the loop, but we verify
* the prefix for any (rare) "//" or "/\0"
* occurence to not implement lookahead.
*/
if (lstat(resolved, &sb) != 0) {
if (m)
free(resolved);
return (NULL);
}
if (!S_ISDIR(sb.st_mode)) {
if (m)
free(resolved);
errno = ENOTDIR;
return (NULL);
}
/* Handle consequential slashes. */
continue;
}
else if (strcmp(next_token, ".") == 0)
@ -236,6 +217,11 @@ realpath(const char * __restrict path, char * __restrict resolved)
}
}
left_len = strlcpy(left, symlink, sizeof(left));
} else if (!S_ISDIR(sb.st_mode) && p != NULL) {
if (m)
free(resolved);
errno = ENOTDIR;
return (NULL);
}
}

12
tests/stdlib_test.cpp
View File

@ -99,6 +99,18 @@ TEST(stdlib, realpath__ENOENT) {
ASSERT_EQ(ENOENT, errno);
}
TEST(stdlib, realpath__component_after_non_directory) {
errno = 0;
char* p = realpath("/dev/null/.", NULL);
ASSERT_TRUE(p == NULL);
ASSERT_EQ(ENOTDIR, errno);
errno = 0;
p = realpath("/dev/null/..", NULL);
ASSERT_TRUE(p == NULL);
ASSERT_EQ(ENOTDIR, errno);
}
TEST(stdlib, realpath) {
// Get the name of this executable.
char executable_path[PATH_MAX];