77 lines
1.2 KiB
C
77 lines
1.2 KiB
C
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "make_path.h"
|
|
|
|
char s_flag;
|
|
char f_flag;
|
|
char v_flag;
|
|
|
|
int ln(const char *src, const char *dst) {
|
|
if (f_flag)
|
|
if (unlink(dst) && v_flag)
|
|
fprintf(stderr, "ln: removed %s\n", dst);
|
|
|
|
int ret = 0;
|
|
if (s_flag)
|
|
ret = symlink(src, dst);
|
|
|
|
else
|
|
ret = link(src, dst);
|
|
|
|
if (!ret && v_flag)
|
|
fprintf(stderr, "ln: linked %s to %s\n", src, dst);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
int opt;
|
|
while ((opt = getopt(argc, argv, "sfv")) != -1) {
|
|
switch (opt) {
|
|
case 's':
|
|
s_flag = 1;
|
|
break;
|
|
|
|
case 'f':
|
|
f_flag = 1;
|
|
break;
|
|
|
|
case 'v':
|
|
v_flag = 1;
|
|
break;
|
|
|
|
default:
|
|
printf("ln [sfv] [src] [dst]\n\t-f Force\n\t-s Symbolic\n\t-v Verbose\n");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
argv += optind;
|
|
argc -= optind;
|
|
|
|
if (argc == 2) {
|
|
if (ln(argv[0], argv[1])) {
|
|
char *new_path = mu_make_path("ln", argv[1], argv[0]);
|
|
if (new_path == NULL)
|
|
return 1;
|
|
|
|
if (ln(argv[0], new_path)) {
|
|
free(new_path);
|
|
fprintf(stderr, "ln: %s %s\n", argv[1], strerror(errno));
|
|
return 1;
|
|
}
|
|
|
|
free(new_path);
|
|
}
|
|
}
|
|
|
|
else {
|
|
fprintf(stderr, "ln: missing operand\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|