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#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
int
main(int argc, char *argv[])
{
if(argc == 1) {
printf("usage: ln [-s] destination link\n");
return 1;
}
int opts, fd, fflag;
while((opts = getopt(argc, argv, "sf")) != -1) {
if(opts == 'f')
fflag = 1;
switch(opts) {
case 's':
if(fflag == 1 && (access(argv[3], F_OK) != 1)) {
if(remove(argv[3]) == -1)
rmdir(argv[3]);
}
int symstat = symlink(argv[2], argv[3]);
if(symstat == -1) {
fprintf(stderr, "ln: %s: %s", argv[3], strerror(errno));
return 1;
}
break;
case '?':
printf("-%c: Argument not found", optopt);
break;
default:
fd = link(argv[1], argv[2]);
if(fd == -1) {
fprintf(stderr, "ln: %s: %s\n", argv[2], strerror(errno));
return 1;
}
return 0;
}
}
}
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