mytime.c

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// Function written by B. Lachele Foley, 2007
#include <mylib.h>
//#include "../inc/mylib.h"

// Usage:
//      const char * mylocaltimestring,mytime(format)
//              -for example:
//      strcpy(mylocaltimestring,mytime("format"));
// where:
//      format is one of:
//              [keyword]       [example]
//              YYYYMMDD        20070321
//              YYYYMMDDhhmmss  20070321152110
//              pretty          Wed, 21 March, 2007
//              longpretty      15:12:10, Wed, 21 March, 2007

const char * mytime(const char* timehow){
char timestring[1001],month[101],day[101];
 char* tm;
int DATE;
struct tm TM;
time_t LT;

// Get date
LT = time(NULL);
TM = *localtime(&LT);
switch(TM.tm_mon){
        case 0:         strcpy(month,"January");
                        break; 
        case 1:         strcpy(month,"February");
                        break; 
        case 2:         strcpy(month,"March");
                        break; 
        case 3:         strcpy(month,"April");
                        break; 
        case 4:         strcpy(month,"May");
                        break; 
        case 5:         strcpy(month,"June");
                        break; 
        case 6:         strcpy(month,"July");
                        break; 
        case 7:         strcpy(month,"August");
                        break; 
        case 8:         strcpy(month,"September");
                        break; 
        case 9:         strcpy(month,"October");
                        break; 
        case 10:        strcpy(month,"November");
                        break; 
        case 11:        strcpy(month,"December");
                        break; 
        default:        mywhine("Error assigning month in mytime.c");
        }
switch(TM.tm_wday){
        case 0:         strcpy(day,"Monday");
                        break;
        case 1:         strcpy(day,"Tuesday");
                        break;
        case 2:         strcpy(day,"Wednesday");
                        break;
        case 3:         strcpy(day,"Thursday");
                        break;
        case 4:         strcpy(day,"Friday");
                        break;
        case 5:         strcpy(day,"Saturday");
                        break;
        case 6:         strcpy(day,"Sunday");
                        break;
        default:        mywhine("Error assigning week day in mytime.c");
        }
if(strcmp(timehow,"YYYYMMDD")==0){
//      YYYYMMDD        20070321
        DATE=19000000 + TM.tm_year*10000 + (TM.tm_mon+1)*100 + TM.tm_mday;
        sprintf(timestring,"%d",DATE);
        }
if(strcmp(timehow,"YYYYMMDDhhmmss")==0){
//      YYYYMMDDhhmmss  20070321152110
        DATE=190000 + TM.tm_year*100 + (TM.tm_mon+1);
        sprintf(timestring,"%d",DATE);
        DATE=TM.tm_mday*1000000 + 10000*TM.tm_hour + 100*TM.tm_min + TM.tm_sec;
        sprintf(timestring,"%s%d",timestring,DATE);
        }
if(strcmp(timehow,"pretty")==0){
//      pretty          Wednesday, 21 March, 2007
        DATE=1900+TM.tm_year;
        sprintf(timestring,"%s, %d %s, %d",day,TM.tm_mday,month,DATE);
        }
if(strcmp(timehow,"longpretty")==0){
//      longpretty      15:12:10, Wednesday, 21 March, 2007
        DATE=1900+TM.tm_year;
        sprintf(timestring,"%02d:%02d:%02d, %s, %d %s, %d",TM.tm_hour,TM.tm_min,\
TM.tm_sec,day,TM.tm_mday,month,DATE);
        } 
 tm = timestring;
return tm;
}