shell: remove lash and bbsh

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>

1 files changed, 0 insertions, 223 deletions

diff --git a/shell/bbsh.c b/shell/bbsh.c
deleted file mode 100644
index 8e25db4..0000000
--- a/shell/bbsh.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/* vi: set ts=4 :
- *
- * bbsh - busybox shell
- *
- * Copyright 2006 Rob Landley <rob@landley.net>
- *
- * Licensed under GPLv2 or later, see file LICENSE in this source tree.
- */
-
-// A section of code that gets repeatedly or conditionally executed is stored
-// as a string and parsed each time it's run.
-
-
-
-// Wheee, debugging.
-
-// Terminal control
-#define ENABLE_BBSH_TTY        0
-
-// &, fg, bg, jobs.  (ctrl-z with tty.)
-#define ENABLE_BBSH_JOBCTL     0
-
-// Flow control (if, while, for, functions { })
-#define ENABLE_BBSH_FLOWCTL    0
-
-#define ENABLE_BBSH_ENVVARS    0  // Environment variable support
-
-// Local and synthetic variables, fancy prompts, set, $?, etc.
-#define ENABLE_BBSH_LOCALVARS  0
-
-// Pipes and redirects: | > < >> << && || & () ;
-#define ENABLE_BBSH_PIPES      0
-
-/* Fun:
-
-  echo `echo hello#comment " woot` and more
-*/
-
-#include "libbb.h"
-
-// A single executable, its arguments, and other information we know about it.
-#define BBSH_FLAG_EXIT    1
-#define BBSH_FLAG_SUSPEND 2
-#define BBSH_FLAG_PIPE    4
-#define BBSH_FLAG_AND     8
-#define BBSH_FLAG_OR      16
-#define BBSH_FLAG_AMP     32
-#define BBSH_FLAG_SEMI    64
-#define BBSH_FLAG_PAREN   128
-
-// What we know about a single process.
-struct command {
-	struct command *next;
-	int flags;		// exit, suspend, && ||
-	int pid;		// pid (or exit code)
-	int argc;
-	char *argv[];
-};
-
-// A collection of processes piped into/waiting on each other.
-struct pipeline {
-	struct pipeline *next;
-	int job_id;
-	struct command *cmd;
-	char *cmdline;
-	int cmdlinelen;
-};
-
-static void free_list(void *list, void (*freeit)(void *data))
-{
-	while (list) {
-		void **next = (void **)list;
-		void *list_next = *next;
-		freeit(list);
-		free(list);
-		list = list_next;
-	}
-}
-
-// Parse one word from the command line, appending one or more argv[] entries
-// to struct command.  Handles environment variable substitution and
-// substrings.  Returns pointer to next used byte, or NULL if it
-// hit an ending token.
-static char *parse_word(char *start, struct command **cmd)
-{
-	char *end;
-
-	// Detect end of line (and truncate line at comment)
-	if (ENABLE_BBSH_PIPES && strchr("><&|(;", *start)) return 0;
-
-	// Grab next word.  (Add dequote and envvar logic here)
-	end = start;
-	end = skip_non_whitespace(end);
-	(*cmd)->argv[(*cmd)->argc++] = xstrndup(start, end-start);
-
-	// Allocate more space if there's no room for NULL terminator.
-
-	if (!((*cmd)->argc & 7))
-			*cmd = xrealloc(*cmd,
-					sizeof(struct command) + ((*cmd)->argc+8)*sizeof(char *));
-	(*cmd)->argv[(*cmd)->argc] = 0;
-	return end;
-}
-
-// Parse a line of text into a pipeline.
-// Returns a pointer to the next line.
-
-static char *parse_pipeline(char *cmdline, struct pipeline *line)
-{
-	struct command **cmd = &(line->cmd);
-	char *start = line->cmdline = cmdline;
-
-	if (!cmdline) return 0;
-
-	if (ENABLE_BBSH_JOBCTL) line->cmdline = cmdline;
-
-	// Parse command into argv[]
-	for (;;) {
-		char *end;
-
-		// Skip leading whitespace and detect end of line.
-		start = skip_whitespace(start);
-		if (!*start || *start=='#') {
-			if (ENABLE_BBSH_JOBCTL) line->cmdlinelen = start-cmdline;
-			return 0;
-		}
-
-		// Allocate next command structure if necessary
-		if (!*cmd) *cmd = xzalloc(sizeof(struct command)+8*sizeof(char *));
-
-		// Parse next argument and add the results to argv[]
-		end = parse_word(start, cmd);
-
-		// If we hit the end of this command, how did it end?
-		if (!end) {
-			if (ENABLE_BBSH_PIPES && *start) {
-				if (*start==';') {
-					start++;
-					break;
-				}
-				// handle | & < > >> << || &&
-			}
-			break;
-		}
-		start = end;
-	}
-
-	if (ENABLE_BBSH_JOBCTL) line->cmdlinelen = start-cmdline;
-
-	return start;
-}
-
-// Execute the commands in a pipeline
-static int run_pipeline(struct pipeline *line)
-{
-	struct command *cmd = line->cmd;
-	if (!cmd || !cmd->argc) return 0;
-
-	// Handle local commands.  This is totally fake and plastic.
-	if (cmd->argc==2 && !strcmp(cmd->argv[0],"cd"))
-		chdir(cmd->argv[1]);
-	else if (!strcmp(cmd->argv[0],"exit"))
-		exit(cmd->argc>1 ? atoi(cmd->argv[1]) : 0);
-	else {
-		int status;
-		pid_t pid=fork();
-		if (!pid) {
-			run_applet_and_exit(cmd->argv[0],cmd->argc,cmd->argv);
-			execvp(cmd->argv[0],cmd->argv);
-			printf("No %s", cmd->argv[0]);
-			exit(EXIT_FAILURE);
-		} else waitpid(pid, &status, 0);
-	}
-
-	return 0;
-}
-
-static void free_cmd(void *data)
-{
-	struct command *cmd=(struct command *)data;
-
-	while (cmd->argc) free(cmd->argv[--cmd->argc]);
-}
-
-
-static void handle(char *command)
-{
-	struct pipeline line;
-	char *start = command;
-
-	for (;;) {
-		memset(&line,0,sizeof(struct pipeline));
-		start = parse_pipeline(start, &line);
-		if (!line.cmd) break;
-
-		run_pipeline(&line);
-		free_list(line.cmd, free_cmd);
-	}
-}
-
-int bbsh_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int bbsh_main(int argc UNUSED_PARAM, char **argv)
-{
-	char *command=NULL;
-	FILE *f;
-
-	getopt32(argv, "c:", &command);
-
-	f = argv[optind] ? xfopen_for_read(argv[optind]) : NULL;
-	if (command) handle(command);
-	else {
-		unsigned cmdlen=0;
-		for (;;) {
-			if (!f) putchar('$');
-			if (1 > getline(&command, &cmdlen, f ? f : stdin)) break;
-
-			handle(command);
-		}
-		if (ENABLE_FEATURE_CLEAN_UP) free(command);
-	}
-
-	return 1;
-}