fixed problem with cached word lists (dictstat2): nanoseconds must be considered/ignored too

docs/changes.txt

@@ -35,6 +35,7 @@
 - Fixed a parser error in multiple modes not checking for return code, resulting in negative memory index writes
 - Fixed a problem with changed current working directory, for instance by using --restore together with --remove
 - Fixed a problem with the conversion to the $HEX[] format: convert/hexify also all passwords of the format $HEX[]
+- Fixed the dictstat lookup if nanoseconds are used in timestamps for the cached files
 - Fixed the calculation of device_name_chksum; should be done for each iteration
 - Fixed the estimated time value whenever the value is very large and overflows
 - Fixed the parsing of command line options. It doesn't show two times the same error about an invalid option anymore

include/common.h

@@ -75,6 +75,20 @@ but this is nededed for VS compiler which doesn't have inline keyword but has __
 
 #define MAYBE_UNUSED __attribute__((unused))
 
+/* Check if we also need to use/set the nanoseconds for the file stats:
+The linux manual says that the only valid way to check for nanosecond resolution is to follow this rule:
+"The nanosecond components of each timestamp are available via names of the form st_atim.tv_nsec
+if the _BSD_SOURCE or _SVID_SOURCE feature test macro is defined"
+*/
+
+#if defined (_BSD_SOURCE)
+#define WITH_NANOSECONDS_IN_STAT 1
+#endif
+
+#if defined (_SVID_SOURCE)
+#define WITH_NANOSECONDS_IN_STAT 1
+#endif
+
 // config section
 // do not try to simply change this, it will not work
 

src/dictstat.c

@@ -19,6 +19,10 @@ int sort_by_dictstat (const void *s1, const void *s2)
 
   d2->stat.st_atime = d1->stat.st_atime;
 
+  #if defined (WITH_NANOSECONDS_IN_STAT)
+  d2->stat.st_atim.tv_nsec = d1->stat.st_atim.tv_nsec;
+  #endif
+
   const int rc_from = strcmp (d1->encoding_from, d2->encoding_from);
 
   if (rc_from != 0) return rc_from;

src/wordlist.c

@@ -293,6 +293,10 @@ int count_words (hashcat_ctx_t *hashcat_ctx, FILE *fd, const char *dictfile, u64
   d.stat.st_rdev    = 0;
   d.stat.st_atime   = 0;
 
+  #if defined (WITH_NANOSECONDS_IN_STAT)
+  d.stat.st_atim.tv_nsec = 0;
+  #endif
+
   #if defined (_POSIX)
   d.stat.st_blksize = 0;
   d.stat.st_blocks  = 0;