diff options
Diffstat (limited to 'src/ln.c')
| -rw-r--r-- | src/ln.c | 19 |
1 files changed, 17 insertions, 2 deletions
@@ -25,6 +25,7 @@ #include <getopt.h> #include "system.h" #include "backupfile.h" +#include "version.h" int link (); /* Some systems don't declare this anywhere. */ @@ -41,6 +42,9 @@ void error (); static void usage (); static int do_link (); +/* The name by which the program was run, for error messages. */ +char *program_name; + /* A pointer to the function used to make links. This will point to either `link' or `symlink'. */ static int (*linkfunc) (); @@ -60,8 +64,11 @@ static int verbose; /* If nonzero, allow the superuser to make hard links to directories. */ static int hard_dir_link; -/* The name by which the program was run, for error messages. */ -char *program_name; +/* If non-zero, display usage information and exit. */ +static int flag_help; + +/* If non-zero, print the version on standard error. */ +static int flag_version; static struct option const long_options[] = { @@ -73,6 +80,8 @@ static struct option const long_options[] = {"symbolic", no_argument, &symbolic_link, 1}, {"verbose", no_argument, &verbose, 1}, {"version-control", required_argument, NULL, 'V'}, + {"help", no_argument, &flag_help, 1}, + {"version", no_argument, &flag_version, 1}, {NULL, 0, NULL, 0} }; @@ -142,6 +151,12 @@ main (argc, argv) if (optind == argc) usage (); + if (flag_version) + fprintf (stderr, "%s\n", version_string); + + if (flag_help) + usage (); + if (make_backups) backup_type = get_version (version); |