#include <stdio.h>
#include <unistd.h>
#include <ctype.h>
#include <locale.h>
#include <sys/types.h>
#include <sys/stat.h>


main(int argc, char *argv[]) {
    FILE *f;
    struct stat st;
    unsigned char *text;
    char locale[32];
    int i;


    if (argc!=3) {
	printf("Usage: %s <file name> <encoding>\n",argv[0]);
	exit(0);
    }

    if (strlen(argv[2])>12) {
	printf("Invalid encoding(%s) specified!\n",argv[2]);
	exit(1);
    }
    
    if ((!strcasecmp(argv[2],"koi"))||(!strcasecmp(argv[2],"koi8"))||(!strcasecmp(argv[2],"koi-8"))||(!strcasecmp(argv[2],"koi8-r")))
    	sprintf(locale,"ru_RU.%s","KOI8-R");
    else if ((!strcasecmp(argv[2],"win"))||(!strcasecmp(argv[2],"cp1251"))||(!strcasecmp(argv[2],"cp-1251"))||(!strcasecmp(argv[2],"win1251"))||(!strcasecmp(argv[2],"win-1251")))
	sprintf(locale,"ru_RU.%s","CP1251");
    else
	sprintf(locale,"ru_RU.%s",argv[2]);
    if (!setlocale(LC_CTYPE,locale)) {
	printf("Can't set locale %s!\n",argv[2]);
	exit(1);
    }
    
    if (stat(argv[1],&st)) {
	printf("Specified file can't be stated!\n");
	exit(1);
    }
    
    if (!S_ISREG(st.st_mode)) {
	printf("Specified file isn't regular file!\n");
	exit(1);
    }
    
    text=(unsigned char*)malloc(st.st_size);
    if (!text) {
	printf("Can't allocate %lu bytes of memory!\n",st.st_size);
	exit(1);
    }
    
    f=fopen(argv[1],"r");
    if (!f) {
	printf("Failed to open specified file. Check permissions!\n");
	free(text);
	exit(1);
    }
    if (fread(text,1,st.st_size,f)!=st.st_size) {
	printf("Problem reading specified file!\n");
	free(text);
	fclose(f);
	exit(1);
    }
    fclose(f);
    
    for (i=0;i<st.st_size;i++) 
	text[i]=toupper(text[i]);
    
    f=fopen("UPPED.OUT","w");
    fwrite(text,1,st.st_size,f);
    fclose(f);
    free(text);
}