Something

#include <stdio.h>

char userpath[100];
FILE *f;

int main (int argc, const char * argv[]) {
f = popen("echo ~","r");
while (!feof(f)) {
			if (fgets(userpath, sizeof(userpath), f)) { // get userpath
			}}
pclose(f);
printf("%s",userpath);
return 0;
}