Merge pull request #56 from ixfd64/params-macros

convert default log file name to macro

Author: N-Storm

src/mfaktc.c

@@ -1143,7 +1143,7 @@ int main(int argc, char **argv)
   {
       if (my_read_string(mystuff.inifile, "LogFile", mystuff.logfile, 50))
       {
-          sprintf(mystuff.logfile, "mfakto.log");
+          snprintf(mystuff.logfile, sizeof(mystuff.logfile), LOG_FILE);
       }
       mystuff.logfileptr = fopen(mystuff.logfile, "a");
   }

src/params.h

@@ -237,10 +237,11 @@ The following lines define the min, default and max value.
 #define MAX_FACTOR_BUFFER_LENGTH    MAX_FACTORS_PER_JOB * MAX_DEZ_96_STRING_LENGTH
 #define MAX_BUFFER_LENGTH           MAX_FACTOR_BUFFER_LENGTH + 100
 
-/* other files */
+/* other files - names should not exceed 50 characters */
 #define CFG_FILE                    "mfakto.ini"
 #define RESULTS_FILE                "results.txt"
-#define RESULTS_JSON_FILE            "results.json.txt"
+#define RESULTS_JSON_FILE           "results.json.txt"
+#define LOG_FILE                    "mfakto.log"
 
 /* for GHz-day calculations */
 #define GHZDAYS_MAGIC_TF_TOP        0.016968    // magic constant for TF to 65 bits and above

src/read_config.c

@@ -524,7 +524,7 @@ int read_config(mystuff_t *mystuff)
 
   if (my_read_string(mystuff->inifile, "LogFile", mystuff->logfile, 50))
   {
-    sprintf(mystuff->logfile, "mfakto.log");
+    snprintf(mystuff->logfile, sizeof(mystuff->logfile), LOG_FILE);
     logprintf(mystuff, "Warning: Cannot read LogFile from INI file, using default (%s)\n", mystuff->logfile);
   }
   if (mystuff->verbosity >= 1)logprintf(mystuff, "  LogFile                   %s\n", mystuff->logfile);