Add MTDM support to ftp_fopen_wrapper::url_stat()

diff --git a/ext/standard/ftp_fopen_wrapper.c b/ext/standard/ftp_fopen_wrapper.c
index 15e6c64385574db9f78237b4026734c89f31d5d4..3ef9c117fd5058a01533a5f6fe9601a2d6bf84f7 100644 (file)
--- a/ext/standard/ftp_fopen_wrapper.c
+++ b/ext/standard/ftp_fopen_wrapper.c
@@ -769,12 +769,58 @@ static int php_stream_ftp_url_stat(php_stream_wrapper *wrapper, char *url, int f
                ssb->sb.st_size = atoi(tmp_line + 4);
        }
 
+       php_stream_write_string(stream, "MDTM ");
+       if (resource->path != NULL) {
+               php_stream_write_string(stream, resource->path);
+       } else {
+               php_stream_write_string(stream, "/");
+       }
+       php_stream_write_string(stream, "\r\n");
+       result = GET_FTP_RESULT(stream);
+       if (result == 213) {
+               char *p = tmp_line + 4;
+               int n;
+               struct tm tm, tmbuf, *gmt;
+               time_t stamp;
+
+               while (p - tmp_line < sizeof(tmp_line) && !isdigit(*p)) {
+                       p++;
+               }
+
+               if (p - tmp_line > sizeof(tmp_line)) {
+                       goto mdtm_error;
+               }
+
+               n = sscanf(p, "%4u%2u%2u%2u%2u%2u", &tm.tm_year, &tm.tm_mon, &tm.tm_mday, &tm.tm_hour, &tm.tm_min, &tm.tm_sec);
+               if (n != 6) {
+                       goto mdtm_error;
+               }
+
+               tm.tm_year -= 1900;
+               tm.tm_mon--;
+               tm.tm_isdst = -1;
+
+               /* figure out the GMT offset */
+               stamp = time(NULL);
+               gmt = php_gmtime_r(&stamp, &tmbuf);
+               gmt->tm_isdst = -1;
+
+               /* apply the GMT offset */
+               tm.tm_sec += stamp - mktime(gmt);
+               tm.tm_isdst = gmt->tm_isdst;
+
+               ssb->sb.st_mtime = mktime(&tm);
+       } else {
+               /* error or unsupported command */
+ mdtm_error:
+               ssb->sb.st_mtime = -1;
+       }
+
        ssb->sb.st_ino = 0;                                             /* Unknown values */
        ssb->sb.st_dev = 0;
        ssb->sb.st_uid = 0;
        ssb->sb.st_gid = 0;
        ssb->sb.st_atime = -1;
-       ssb->sb.st_mtime = -1;
        ssb->sb.st_ctime = -1;
        ssb->sb.st_nlink = 1;
        ssb->sb.st_rdev = -1;