diff options
Diffstat (limited to 'debianutils/readlink.c')
| -rw-r--r-- | debianutils/readlink.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/debianutils/readlink.c b/debianutils/readlink.c index d8d7e8c..90927bb 100644 --- a/debianutils/readlink.c +++ b/debianutils/readlink.c @@ -23,18 +23,38 @@ #include <errno.h> #include <unistd.h> #include <stdlib.h> +#include <getopt.h> #include "busybox.h" +#ifdef CONFIG_FEATURE_READLINK_FOLLOW +# define READLINK_FOLLOW "f" +# define READLINK_FLAG_f (1 << 0) +#else +# define READLINK_FOLLOW "" +#endif + +static const char readlink_options[] = READLINK_FOLLOW; + int readlink_main(int argc, char **argv) { char *buf = NULL; + unsigned long opt = bb_getopt_ulflags(argc, argv, readlink_options); +#ifdef CONFIG_FEATURE_READLINK_FOLLOW + RESERVE_CONFIG_BUFFER(resolved_path, PATH_MAX); +#endif /* no options, no getopt */ - if (argc != 2) + if (optind + 1 != argc) bb_show_usage(); - buf = xreadlink(argv[1]); +#ifdef CONFIG_FEATURE_READLINK_FOLLOW + if (opt & READLINK_FLAG_f) { + buf = realpath(argv[optind], resolved_path); + } else +#endif + buf = xreadlink(argv[optind]); + if (!buf) return EXIT_FAILURE; puts(buf); |