file_stats.c

   1 /*
   2  * User FTP Server
   3  * Author : C2H5OH
   4  * License: GPL v2
   5  *
   6  * file_stats.c - File status query.
   7  *
   8  * Here we implement some commands (SIZE, MDTM) that share the need of calling
   9  * stat() over a given file, no matter the fields looked up. It's handy to merge
  10  * all of them here so safety checks are not replicated.
  11  */
  12
  13 #include "uftps.h"
  14
  15 void file_stats (int type)
  16 {
  17         int         err;
  18         struct stat st;
  19         struct tm   t;
  20
  21         if (!path_is_secure(S_arg)) {
  22                 send_reply(S_cmd_sk, "550 Path is insecure.\r\n");
  23                 return;
  24         }
  25
  26         err = stat(expanded_arg(), &st);
  27
  28         if (err == -1) {
  29                 send_reply(S_cmd_sk, "550 Could not stat file.\r\n");
  30                 return;
  31         }
  32
  33         switch (type) {
  34         case 0: /* MDTM */
  35                 gmtime_r(&(st.st_mtime), &t);
  36                 snprintf(AuxBuf, LINE_SIZE,
  37                          "213 %4d%02d%02d%02d%02d%02d\r\n", t.tm_year + 1900,
  38                          t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
  39                 break;
  40
  41         case 1: /* SIZE */
  42                 snprintf(AuxBuf, LINE_SIZE, "213 %lld\r\n",
  43                          (long long) st.st_size);
  44         }
  45
  46         send_reply(S_cmd_sk, AuxBuf);
  47 }
  48