/* {{{ expand_filepath_use_realpath
*/
PHPAPI char *expand_filepath_with_mode(const char *filepath, char *real_path, const char *relative_to, size_t relative_to_len, int realpath_mode)
{
cwd_state new_state;
char cwd[MAXPATHLEN];
int copy_len;
int path_len;
if (!filepath[0]) {
return NULL;
}
path_len = (int)strlen(filepath);
if (IS_ABSOLUTE_PATH(filepath, path_len)) {
cwd[0] = '\0';
} else {
const char *iam = SG(request_info).path_translated;
const char *result;
if (relative_to) {
if (relative_to_len > MAXPATHLEN-1U) {
return NULL;
}
result = relative_to;
memcpy(cwd, relative_to, relative_to_len+1U);
} else {
result = VCWD_GETCWD(cwd, MAXPATHLEN);
}
if (!result && (iam != filepath)) {
int fdtest = -1;
fdtest = VCWD_OPEN(filepath, O_RDONLY);
if (fdtest != -1) {
/* return a relative file path if for any reason
* we cannot cannot getcwd() and the requested,
* relatively referenced file is accessible */
copy_len = path_len > MAXPATHLEN - 1 ? MAXPATHLEN - 1 : path_len;
if (real_path) {
memcpy(real_path, filepath, copy_len);
real_path[copy_len] = '\0';
} else {
real_path = estrndup(filepath, copy_len);
}
close(fdtest);
return real_path;
} else {
cwd[0] = '\0';
}
} else if (!result) {
cwd[0] = '\0';
}
}
new_state.cwd = estrdup(cwd);
new_state.cwd_length = (int)strlen(cwd);
if (virtual_file_ex(&new_state, filepath, NULL, realpath_mode)) {
efree(new_state.cwd);
return NULL;
}
if (real_path) {
copy_len = new_state.cwd_length > MAXPATHLEN - 1 ? MAXPATHLEN - 1 : new_state.cwd_length;
memcpy(real_path, new_state.cwd, copy_len);
real_path[copy_len] = '\0';
} else {
real_path = estrndup(new_state.cwd, new_state.cwd_length);
}
efree(new_state.cwd);
return real_path;
}
static int php_do_open_temporary_file(const char *path, const char *pfx, zend_string **opened_path_p)
{
char *trailing_slash;
#ifdef PHP_WIN32
char *opened_path = NULL;
size_t opened_path_len;
wchar_t *cwdw, *pfxw, pathw[MAXPATHLEN];
#else
char opened_path[MAXPATHLEN];
#endif
char cwd[MAXPATHLEN];
cwd_state new_state;
int fd = -1;
#ifndef HAVE_MKSTEMP
int open_flags = O_CREAT | O_TRUNC | O_RDWR
#ifdef PHP_WIN32
| _O_BINARY
#endif
;
#endif
if (!path || !path[0]) {
return -1;
}
#ifdef PHP_WIN32
if (!php_win32_check_trailing_space(pfx, (const int)strlen(pfx))) {
SetLastError(ERROR_INVALID_NAME);
return -1;
}
#endif
if (!VCWD_GETCWD(cwd, MAXPATHLEN)) {
cwd[0] = '\0';
}
new_state.cwd = estrdup(cwd);
new_state.cwd_length = (int)strlen(cwd);
if (virtual_file_ex(&new_state, path, NULL, CWD_REALPATH)) {
efree(new_state.cwd);
return -1;
}
if (IS_SLASH(new_state.cwd[new_state.cwd_length - 1])) {
trailing_slash = "";
} else {
trailing_slash = "/";
}
#ifndef PHP_WIN32
if (snprintf(opened_path, MAXPATHLEN, "%s%s%sXXXXXX", new_state.cwd, trailing_slash, pfx) >= MAXPATHLEN) {
efree(new_state.cwd);
return -1;
}
#endif
#ifdef PHP_WIN32
cwdw = php_win32_ioutil_any_to_w(new_state.cwd);
pfxw = php_win32_ioutil_any_to_w(pfx);
if (!cwdw || !pfxw) {
free(cwdw);
free(pfxw);
efree(new_state.cwd);
return -1;
}
if (GetTempFileNameW(cwdw, pfxw, 0, pathw)) {
opened_path = php_win32_ioutil_conv_w_to_any(pathw, PHP_WIN32_CP_IGNORE_LEN, &opened_path_len);
if (!opened_path || opened_path_len >= MAXPATHLEN) {
free(cwdw);
free(pfxw);
efree(new_state.cwd);
return -1;
}
assert(strlen(opened_path) == opened_path_len);
/* Some versions of windows set the temp file to be read-only,
* which means that opening it will fail... */
if (VCWD_CHMOD(opened_path, 0600)) {
free(cwdw);
free(pfxw);
efree(new_state.cwd);
free(opened_path);
return -1;
}
fd = VCWD_OPEN_MODE(opened_path, open_flags, 0600);
}
free(cwdw);
free(pfxw);
#elif defined(HAVE_MKSTEMP)
fd = mkstemp(opened_path);
#else
if (mktemp(opened_path)) {
fd = VCWD_OPEN(opened_path, open_flags);
}
#endif
#ifdef PHP_WIN32
if (fd != -1 && opened_path_p) {
*opened_path_p = zend_string_init(opened_path, opened_path_len, 0);
}
free(opened_path);
#else
if (fd != -1 && opened_path_p) {
*opened_path_p = zend_string_init(opened_path, strlen(opened_path), 0);
}
#endif
efree(new_state.cwd);
return fd;
}
