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- /*
- * rl - command-line interface to read a line from the standard input
- * (or another fd) using readline.
- *
- * usage: rl [-p prompt] [-u unit] [-d default]
- */
-
- /*
- * Remove the next line if you're compiling this against an installed
- * libreadline.a
- */
- #define READLINE_LIBRARY
-
- #if defined (HAVE_CONFIG_H)
- # include <config.h>
- #endif
-
- #include <stdio.h>
- #include <sys/types.h>
- #include "posixstat.h"
- #include "readline.h"
- #include "history.h"
-
- extern int optind;
- extern char *optarg;
-
- #if !defined (strchr) && !defined (__STDC__)
- extern char *strrchr();
- #endif
-
- static char *progname;
- static char *deftext;
-
- static int
- set_deftext ()
- {
- if (deftext)
- {
- rl_insert_text (deftext);
- deftext = (char *)NULL;
- rl_startup_hook = (Function *)NULL;
- }
- }
-
- static void
- usage()
- {
- fprintf (stderr, "%s: usage: %s [-p prompt] [-u unit] [-d default]\n",
- progname, progname);
- }
-
- main (argc, argv)
- int argc;
- char **argv;
- {
- char *temp, *prompt;
- struct stat sb;
- int opt, fd;
- FILE *ifp;
-
- progname = strrchr(argv[0], '/');
- if (progname == 0)
- progname = argv[0];
- else
- progname++;
-
- /* defaults */
- prompt = "readline$ ";
- fd = 0;
- deftext = (char *)0;
-
- while ((opt = getopt(argc, argv, "p:u:d:")) != EOF)
- {
- switch (opt)
- {
- case 'p':
- prompt = optarg;
- break;
- case 'u':
- fd = atoi(optarg);
- if (fd < 0)
- {
- fprintf (stderr, "%s: bad file descriptor `%s'\n", progname, optarg);
- exit (2);
- }
- break;
- case 'd':
- deftext = optarg;
- break;
- default:
- usage ();
- exit (2);
- }
- }
-
- if (fd != 0)
- {
- if (fstat (fd, &sb) < 0)
- {
- fprintf (stderr, "%s: %d: bad file descriptor\n", progname, fd);
- exit (1);
- }
- ifp = fdopen (fd, "r");
- rl_instream = ifp;
- }
-
- if (deftext && *deftext)
- rl_startup_hook = set_deftext;
-
- temp = readline (prompt);
-
- /* Test for EOF. */
- if (temp == 0)
- exit (1);
-
- puts (temp);
- exit (0);
- }
-