53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
|
#include "internal.h"
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include <sys/param.h>
|
||
|
|
#include <errno.h>
|
||
|
|
|
||
|
|
const char ln_usage[] = "ln [-s] [-f] original-name additional-name\n"
|
||
|
|
"\n"
|
||
|
|
"\tAdd a new name that refers to the same file as \"original-name\"\n"
|
||
|
|
"\n"
|
||
|
|
"\t-s:\tUse a \"symbolic\" link, instead of a \"hard\" link.\n"
|
||
|
|
"\t-f:\tRemove existing destination files.\n";
|
||
|
|
|
||
|
|
int
|
||
|
|
ln_fn(const struct FileInfo * i)
|
||
|
|
{
|
||
|
|
int status = 0;
|
||
|
|
char d[PATH_MAX];
|
||
|
|
const char * destination = i->destination;
|
||
|
|
|
||
|
|
if ( !i->makeSymbolicLink && (i->stat.st_mode & S_IFMT) == S_IFDIR ) {
|
||
|
|
fprintf(stderr, "Please use \"ln -s\" to link directories.\n");
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* If the destination is a directory, create a file within it.
|
||
|
|
*/
|
||
|
|
if ( is_a_directory(i->destination) ) {
|
||
|
|
destination = join_paths(
|
||
|
|
d
|
||
|
|
,i->destination
|
||
|
|
,&i->source[i->directoryLength]);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( i->force )
|
||
|
|
status = ( unlink(destination) && errno != ENOENT );
|
||
|
|
|
||
|
|
if ( status == 0 ) {
|
||
|
|
if ( i->makeSymbolicLink )
|
||
|
|
status = symlink(i->source, destination);
|
||
|
|
else
|
||
|
|
status = link(i->source, destination);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( status != 0 ) {
|
||
|
|
name_and_error(destination);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return 0;
|
||
|
|
}
|