echo "foo bar" and echo -n "foo\t\\\\\tbar" work as expected.
Merge prompt printing work from Vladimir.
-Erik
//
// Enable command line editing in the shell.
// Only relevant if BB_SH is enabled.
-#define BB_FEATURE_SH_COMMAND_EDITING
+#define BB_FEATURE_COMMAND_EDITING
+//
+// Enable tab completion in the shell. This is now working quite nicely.
+// This feature adds a bit over 4k. Only relevant if BB_SH is enabled.
+#define BB_FEATURE_COMMAND_TAB_COMPLETION
+//
+// Attempts to match usernames in a ~-prefixed path
+//#define BB_FEATURE_COMMAND_USERNAME_COMPLETION
//
//Allow the shell to invoke all the compiled in BusyBox applets as if they
//were shell builtins. Nice for staticly linking an emergency rescue shell,
// Only relevant if BB_SH is enabled.
#define BB_FEATURE_SH_APPLETS_ALWAYS_WIN
//
-// Enable tab completion in the shell. This is now working quite nicely.
-// This feature adds a bit over 4k. Only relevant if BB_SH is enabled.
-//#define BB_FEATURE_SH_TAB_COMPLETION
-//
-// Enable a simpler shell prompt of the form "path #"
-// instead of the default "[username@hostname path]#"
-//
// Some deeply embedded systems don't have usernames or even hostnames,
// and the default prompt can look rather hideous on them. Uncomment
// this option for a simpler, path-only prompt (which was the default until
// around BusyBox-0.48):
-#define BB_FEATURE_SH_SIMPLE_PROMPT
-//
-// Attempts to match usernames in a ~-prefixed path
-//#define BB_FEATURE_SH_USERNAME_COMPLETION
+#define BB_FEATURE_SIMPLE_PROMPT
//
//Turn on extra fbset options
//#define BB_FEATURE_FBSET_FANCY
#undef BB_MTAB
#endif
//
-#if defined BB_FEATURE_SH_COMMAND_EDITING && defined BB_SH
+#if defined BB_FEATURE_COMMAND_EDITING && defined BB_SH
#define BB_CMDEDIT
#endif
//
#define BB_NFSMOUNT
#endif
//
-#if defined BB_FEATURE_SH_COMMAND_EDITING
+#if defined BB_FEATURE_COMMAND_EDITING
#ifndef BB_FEATURE_USE_TERMIOS
#define BB_FEATURE_USE_TERMIOS
#endif
- $(SHELL) $^ >$@
nfsmount.o cmdedit.o: %.o: %.h
+sh.o: cmdedit.h
$(OBJECTS): %.o: %.c Config.h busybox.h applets.h Makefile
$(CC) -I- $(CFLAGS) -I. $(patsubst %,-I%,$(subst :, ,$(BB_SRC_DIR))) -c $< -o $*.o
Small bugs (simple effect):
- not true viewing if terminal size (x*y symbols) less
size (prompt + editor`s line + 2 symbols)
+ - not true viewing if length prompt less terminal width
*/
#else
-#define BB_FEATURE_SH_COMMAND_EDITING
-#define BB_FEATURE_SH_TAB_COMPLETION
-#define BB_FEATURE_SH_USERNAME_COMPLETION
+#define BB_FEATURE_COMMAND_EDITING
+#define BB_FEATURE_COMMAND_TAB_COMPLETION
+#define BB_FEATURE_COMMAND_USERNAME_COMPLETION
#define BB_FEATURE_NONPRINTABLE_INVERSE_PUT
-#define BB_FEATURE_BASH_STYLE_PROMT
+#undef BB_FEATURE_SIMPLE_PROMPT
#define BB_FEATURE_CLEAN_UP
#define D(x) x
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
#endif /* TEST */
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
#include <dirent.h>
#include <sys/stat.h>
#endif
-#ifdef BB_FEATURE_SH_COMMAND_EDITING
+#ifdef BB_FEATURE_COMMAND_EDITING
-#ifndef BB_FEATURE_SH_TAB_COMPLETION
-#undef BB_FEATURE_SH_USERNAME_COMPLETION
+#ifndef BB_FEATURE_COMMAND_TAB_COMPLETION
+#undef BB_FEATURE_COMMAND_USERNAME_COMPLETION
#endif
-#if defined(BB_FEATURE_SH_USERNAME_COMPLETION) || defined(BB_FEATURE_BASH_STYLE_PROMT)
+#if defined(BB_FEATURE_COMMAND_USERNAME_COMPLETION) || !defined(BB_FEATURE_SIMPLE_PROMPT)
#define BB_FEATURE_GETUSERNAME_AND_HOMEDIR
#endif
volatile int handlers_sets = 0; /* Set next bites: */
enum {
- SET_ATEXIT = 1, /* when atexit() has been called and
- get euid,uid,gid to fast compare */
- SET_TERM_HANDLERS = 2, /* set many terminates signal handlers */
- SET_WCHG_HANDLERS = 4, /* winchg signal handler */
- SET_RESET_TERM = 8, /* if the terminal needs to be reset upon exit */
+ SET_ATEXIT = 1, /* when atexit() has been called
+ and get euid,uid,gid to fast compare */
+ SET_TERM_HANDLERS = 2, /* set many terminates signal handlers */
+ SET_WCHG_HANDLERS = 4, /* winchg signal handler */
+ SET_RESET_TERM = 8, /* if the terminal needs to be reset upon exit */
};
-static int cmdedit_x; /* real x terminal position */
-static int cmdedit_y; /* pseudoreal y terminal position */
+static int cmdedit_x; /* real x terminal position */
+static int cmdedit_y; /* pseudoreal y terminal position */
static int cmdedit_prmt_len; /* lenght prompt without colores string */
-static int cursor; /* required global for signal handler */
-static int len; /* --- "" - - "" - -"- --""-- --""--- */
-static char *command_ps; /* --- "" - - "" - -"- --""-- --""--- */
+static int cursor; /* required global for signal handler */
+static int len; /* --- "" - - "" - -"- --""-- --""--- */
+static char *command_ps; /* --- "" - - "" - -"- --""-- --""--- */
static
-#ifndef BB_FEATURE_BASH_STYLE_PROMT
+#ifdef BB_FEATURE_SIMPLE_PROMPT
const
#endif
-char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
+char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
/* Link into lash to reset context to 0 on ^C and such */
extern unsigned int shell_context;
static int my_euid;
#endif
-#ifdef BB_FEATURE_BASH_STYLE_PROMT
+#ifndef BB_FEATURE_SIMPLE_PROMPT
static char *hostname_buf = "";
static int num_ok_lines = 1;
#endif
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
static int my_euid;
static int my_uid;
static int my_gid;
-#endif /* BB_FEATURE_SH_TAB_COMPLETION */
+#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
static void cmdedit_setwidth(int w, int redraw_flg);
if (his_front) {
struct history *n;
- //while(his_front!=his_end) {
while (his_front != his_end) {
n = his_front->n;
free(his_front->s);
cursor = 0;
}
-#ifdef BB_FEATURE_BASH_STYLE_PROMT
-static void
-add_to_prompt(char **prmt_mem_ptr, int *alm, int *prmt_len,
- const char *addb)
+#ifdef BB_FEATURE_SIMPLE_PROMPT
+static void parse_prompt(const char *prmt_ptr)
{
- int l = strlen(addb);
-
- *prmt_len += l;
+ cmdedit_prompt = prmt_ptr;
+ cmdedit_prmt_len = strlen(prmt_ptr);
+ put_prompt();
+}
+#else
+static void add_to_prompt(char **prmt_mem_ptr, int *alm,
+ int *prmt_len, const char *addb)
+{
+ *prmt_len += strlen(addb);
if (*alm < (*prmt_len) + 1) {
*alm = (*prmt_len) + 1;
*prmt_mem_ptr = xrealloc(*prmt_mem_ptr, *alm);
}
strcat(*prmt_mem_ptr, addb);
}
-#endif
static void parse_prompt(const char *prmt_ptr)
{
-#ifdef BB_FEATURE_BASH_STYLE_PROMT
int alm = strlen(prmt_ptr) + 1; /* supposedly require memory */
int prmt_len = 0;
int sub_len = 0;
break;
prmt_ptr++;
switch (c) {
+#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
case 'u':
add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, user_buf);
continue;
+#endif
case 'h':
if (hostname_buf[0] == 0) {
hostname_buf = xcalloc(256, 1);
case '$':
c = my_euid == 0 ? '#' : '$';
break;
+#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
case 'w':
if (pwd_buf[0] == 0) {
int l;
}
add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, pwd_buf);
continue;
+#endif
case '!':
snprintf(buf, sizeof(buf), "%d", num_ok_lines);
add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, buf);
if (flg_not_length == ']')
sub_len++;
}
+#if 0
cmdedit_prmt_len = prmt_len - sub_len;
- cmdedit_prompt = prmt_mem_ptr;
-#else
cmdedit_prompt = prmt_ptr;
- cmdedit_prmt_len = strlen(prmt_ptr);
-#endif
+#endif
+ cmdedit_prompt = prmt_mem_ptr;
+ cmdedit_prmt_len = strlen(cmdedit_prompt);
put_prompt();
}
+#endif
/* draw promt, editor line, and clear tail */
static void redraw(int y, int back_cursor)
{
- if (y > 0) /* up to start y */
+ if (y > 0) /* up to start y */
printf("\033[%dA", y);
cmdedit_y = 0; /* new quasireal y */
putchar('\r');
strcpy(command_ps + j, command_ps + j + 1);
len--;
- input_end(); /* rewtite new line */
+ input_end(); /* rewtite new line */
cmdedit_set_out_char(0); /* destroy end char */
input_backward(cursor - j); /* back to old pos cursor */
}
{
goto_new_line();
if (sig != SIGINT)
- exit(EXIT_SUCCESS); /* cmdedit_reset_term() called in atexit */
+ exit(EXIT_SUCCESS); /* cmdedit_reset_term() called in atexit */
cmdedit_reset_term();
}
cmdedit_termw = cmdedit_termw % w;
}
if (w > cmdedit_termw) {
-
cmdedit_termw = w;
if (redraw_flg) {
}
#endif
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
my_euid = geteuid();
#endif
my_uid = getuid();
my_gid = getgid();
-#endif /* BB_FEATURE_SH_TAB_COMPLETION */
+#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
handlers_sets |= SET_ATEXIT;
atexit(cmdedit_reset_term); /* be sure to do this only once */
}
}
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
static int is_execute(const struct stat *st)
{
return FALSE;
}
-#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
+#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
static char **username_tab_completion(char *ud, int *num_matches)
{
char *temp;
- ud++; /* ~user/... to user/... */
+ ud++; /* ~user/... to user/... */
userlen = strlen(ud);
if (num_matches == 0) { /* "~/..." or "~user/..." */
char *sav_ud = ud - 1;
char *home = 0;
- if (*ud == '/') { /* "~/..." */
+ if (*ud == '/') { /* "~/..." */
home = home_pwd_buf;
} else {
/* "~user/..." */
temp = strchr(ud, '/');
- *temp = 0; /* ~user\0 */
+ *temp = 0; /* ~user\0 */
entry = getpwnam(ud);
*temp = '/'; /* restore ~user/... */
ud = temp;
strcpy(sav_ud, temp2);
}
}
- return 0; /* void, result save to argument :-) */
+ return 0; /* void, result save to argument :-) */
} else {
/* "~[^/]*" */
char **matches = (char **) NULL;
return (matches);
}
}
-#endif /* BB_FEATURE_SH_USERNAME_COMPLETION */
+#endif /* BB_FEATURE_COMMAND_USERNAME_COMPLETION */
enum {
FIND_EXE_ONLY = 0,
npth = 0;
for (;;) {
- npth++; /* count words is + 1 count ':' */
+ npth++; /* count words is + 1 count ':' */
tmp = strchr(tmp, ':');
if (tmp) {
if (*++tmp == 0)
- break; /* :<empty> */
+ break; /* :<empty> */
} else
break;
}
tmp = pth;
(*p)[0] = xstrdup(tmp);
- npth = 1; /* count words is + 1 count ':' */
+ npth = 1; /* count words is + 1 count ':' */
for (;;) {
tmp = strchr(tmp, ':');
}
static char **exe_n_cwd_tab_completion(char *command, int *num_matches,
- int type)
+ int type)
{
char **matches = 0;
strcpy(dirbuf, command);
/* set dir only */
dirbuf[(pfind - command) + 1] = 0;
-#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
+#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
if (dirbuf[0] == '~') /* ~/... or ~user/... */
username_tab_completion(dirbuf, 0);
#endif
for (i = 0; i < npaths; i++) {
dir = opendir(paths[i]);
- if (!dir) /* Don't print an error */
+ if (!dir) /* Don't print an error */
continue;
while ((next = readdir(dir)) != NULL) {
for (i = 0; int_buf[i]; i++)
if (int_buf[i] == ' ' || int_buf[i] == '<' || int_buf[i] == '>') {
if (int_buf[i] == ' ' && command_mode == FIND_EXE_ONLY
- && strncmp(&matchBuf[pos_buf[0]], "cd", 2) == 0)
+ && matchBuf[pos_buf[0]]=='c'
+ && matchBuf[pos_buf[1]]=='d' )
command_mode = FIND_DIR_ONLY;
else {
command_mode = FIND_FILE_ONLY;
/* Free up any memory already allocated */
input_tab(0);
-#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
+#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
/* If the word starts with `~' and there is no slash in the word,
* then try completing this word as a username. */
beep();
if (!matches)
- return; /* not found */
+ return; /* not found */
/* sort */
qsort(matches, num_matches, sizeof(char *), match_compare);
free(tmp);
return;
}
- } else { /* one match */
+ } else { /* one match */
tmp = matches[0];
/* for next completion current found */
*lastWasTab = FALSE;
}
}
}
-#endif /* BB_FEATURE_SH_TAB_COMPLETION */
+#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
static void get_previous_history(struct history **hp, struct history *p)
{
* Furthermore, the "vi" command editing keys are not implemented.
*
*/
+
extern void cmdedit_read_input(char *prompt, char command[BUFSIZ])
{
struct history *hp = his_end;
/* prepare before init handlers */
- cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
+ cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
len = 0;
command_ps = command;
new_settings.c_cc[VMIN] = 1;
new_settings.c_cc[VTIME] = 0;
- new_settings.c_cc[VINTR] = _POSIX_VDISABLE; /* Turn off CTRL-C, so we can trap it */
+ /* Turn off CTRL-C, so we can trap it */
+ new_settings.c_cc[VINTR] = _POSIX_VDISABLE;
new_settings.c_lflag &= ~ICANON; /* unbuffered input */
- new_settings.c_lflag &= ~(ECHO | ECHOCTL | ECHONL); /* Turn off echoing */
+ /* Turn off echoing */
+ new_settings.c_lflag &= ~(ECHO | ECHOCTL | ECHONL);
}
command[0] = 0;
input_backspace();
break;
case '\t':
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
input_tab(&lastWasTab);
#endif
break;
return;
}
switch (c) {
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
case '\t': /* Alt-Tab */
input_tab(&lastWasTab);
break;
}
- default: /* If it's regular input, do the normal thing */
+ default: /* If it's regular input, do the normal thing */
#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
/* Control-V -- Add non-printable symbol */
if (c == 22) {
history_counter++;
}
}
-#if defined(BB_FEATURE_BASH_STYLE_PROMT)
+#if !defined(BB_FEATURE_SIMPLE_PROMPT)
num_ok_lines++;
#endif
}
command[len++] = '\n'; /* set '\n' */
command[len] = 0;
-#if defined(BB_FEATURE_CLEAN_UP) && defined(BB_FEATURE_SH_TAB_COMPLETION)
+#if defined(BB_FEATURE_CLEAN_UP) && defined(BB_FEATURE_COMMAND_TAB_COMPLETION)
input_tab(0); /* strong free */
#endif
-#if defined(BB_FEATURE_BASH_STYLE_PROMT)
+#if !defined(BB_FEATURE_SIMPLE_PROMPT)
free(cmdedit_prompt);
#endif
return;
}
}
-#endif /* BB_FEATURE_SH_COMMAND_EDITING */
+#endif /* BB_FEATURE_COMMAND_EDITING */
#ifdef TEST
{
char buff[BUFSIZ];
char *prompt =
-#if defined(BB_FEATURE_BASH_STYLE_PROMT)
- "\\[\\033[32;1m\\]\\u@\\[\\033[33;1m\\]\\h:\
+#if !defined(BB_FEATURE_SIMPLE_PROMPT)
+ "\\[\\033[32;1m\\]\\u@\\[\\x1b[33;1m\\]\\h:\
\\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] \
-\\!\\[\\033[36;1m\\]\\$ \\[\\033[0m\\]";
+\\!\\[\\e[36;1m\\]\\$ \\[\\E[0m\\]";
#else
"% ";
#endif
shell_context = 1;
do {
+ int l;
cmdedit_read_input(prompt, buff);
+ l = strlen(buff);
+ if(l > 0 && buff[l-1] == '\n')
+ buff[l-1] = 0;
printf("*** cmdedit_read_input() returned line =%s=\n", buff);
} while (shell_context);
printf("*** cmdedit_read_input() detect ^C\n");
return 0;
}
-#endif /* TEST */
+#endif /* TEST */
#ifndef CMDEDIT_H
#define CMDEDIT_H
-#ifdef BB_FEATURE_SH_COMMAND_EDITING
+#ifdef BB_FEATURE_COMMAND_EDITING
#include <stddef.h>
+#include "busybox.h"
void cmdedit_init(void);
void cmdedit_terminate(void);
void cmdedit_read_input(char* promptStr, char* command); /* read a line of input */
-#endif /* BB_FEATURE_SH_COMMAND_EDITING */
+#endif /* BB_FEATURE_COMMAND_EDITING */
#endif /* CMDEDIT_H */
//#define BB_FEATURE_SH_BACKTICKS
//
//If, then, else, etc. support.. This should now behave basically
-//like any other Bourne shell...
+//like any other Bourne shell -- sortof...
#define BB_FEATURE_SH_IF_EXPRESSIONS
//
-/* This is currently a little broken... */
-//#define HANDLE_CONTINUATION_CHARS
+/* This is currently sortof broken, only for the brave... */
+#undef HANDLE_CONTINUATION_CHARS
+//
+/* This would be great -- if wordexp wouldn't strip all quoting
+ * out from the target strings... As is, a parser needs */
+#undef BB_FEATURE_SH_WORDEXP
//
//For debugging/development on the shell only...
//#define DEBUG_SHELL
#include <unistd.h>
#include <getopt.h>
-//#undef __GLIBC__
-//#undef __UCLIBC__
+#undef BB_FEATURE_SH_WORDEXP
-#if ( (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) ) || defined (__UCLIBC__)
+#if BB_FEATURE_SH_WORDEXP
#include <wordexp.h>
#define expand_t wordexp_t
#undef BB_FEATURE_SH_BACKTICKS
static char syntax_err[]="syntax error near unexpected token";
#endif
+static char *PS1;
+static char *PS2;
+
+
#ifdef DEBUG_SHELL
static inline void debug_printf(const char *format, ...)
{
else
newdir = child->argv[1];
if (chdir(newdir)) {
- printf("cd: %s: %s\n", newdir, strerror(errno));
+ printf("cd: %s: %m\n", newdir);
return EXIT_FAILURE;
}
getcwd(cwd, sizeof(char)*MAX_LINE);
static int builtin_export(struct child_prog *child)
{
int res;
+ char *v = child->argv[1];
- if (child->argv[1] == NULL) {
+ if (v == NULL) {
return (builtin_env(child));
}
- res = putenv(child->argv[1]);
+ res = putenv(v);
if (res)
- fprintf(stderr, "export: %s\n", strerror(errno));
+ fprintf(stderr, "export: %m\n");
+#ifndef BB_FEATURE_SIMPLE_PROMPT
+ if (strncmp(v, "PS1=", 4)==0)
+ PS1 = getenv("PS1");
+ else if (strncmp(v, "PS2=", 4)==0)
+ PS2 = getenv("PS2");
+#endif
return (res);
}
if((s = strdup(string)))
res = putenv(s);
if (res)
- fprintf(stderr, "read: %s\n", strerror(errno));
+ fprintf(stderr, "read: %m\n");
}
else
fgets(string, sizeof(string), stdin);
if (openfd < 0) {
/* this could get lost if stderr has been redirected, but
bash and ash both lose it as well (though zsh doesn't!) */
- error_msg("error opening %s: %s", redir->filename,
- strerror(errno));
+ perror_msg("error opening %s", redir->filename);
return 1;
}
}
}
-#if defined(BB_FEATURE_SH_SIMPLE_PROMPT)
-static char* setup_prompt_string(int state)
+static inline void cmdedit_set_initial_prompt(void)
{
- char prompt_str[BUFSIZ];
-
- /* Set up the prompt */
- if (state == 0) {
- /* simple prompt */
- sprintf(prompt_str, "%s %s", cwd, ( geteuid() != 0 ) ? "$ ":"# ");
- } else {
- strcpy(prompt_str,"> ");
- }
-
- return(strdup(prompt_str)); /* Must free this memory */
-}
-
+#ifdef BB_FEATURE_SIMPLE_PROMPT
+ PS1 = NULL;
+ PS2 = "> ";
#else
+ PS1 = getenv("PS1");
+ if(PS1==0) {
+ PS1 = "\\w \\$ ";
+ }
+ PS2 = getenv("PS2");
+ if(PS2==0)
+ PS2 = "> ";
+#endif
+}
-static char* setup_prompt_string(int state)
+static inline void setup_prompt_string(char **prompt_str)
{
- char user[9],buf[255],*s;
- char prompt[3];
- char prompt_str[BUFSIZ];
-
+#ifdef BB_FEATURE_SIMPLE_PROMPT
/* Set up the prompt */
- if (state == 0) {
- /* get User Name and setup prompt */
- strcpy(prompt,( geteuid() != 0 ) ? "$ ":"# ");
- my_getpwuid(user, geteuid());
-
- /* get HostName */
- gethostname(buf, 255);
- s = strchr(buf, '.');
- if (s) {
- *s = 0;
- }
+ if (shell_context == 0) {
+ if (PS1)
+ free(PS1);
+ PS1=xmalloc(strlen(cwd)+4);
+ sprintf(PS1, "%s %s", cwd, ( geteuid() != 0 ) ? "$ ":"# ");
+ *prompt_str = PS1;
} else {
- strcpy(prompt,"> ");
+ *prompt_str = PS2;
}
-
- if (state == 0) {
- snprintf(prompt_str, BUFSIZ-1, "[%s@%s %s]%s", user, buf,
- get_last_path_component(cwd), prompt);
- } else {
- sprintf(prompt_str, "%s", prompt);
- }
- return(strdup(prompt_str)); /* Must free this memory */
+#else
+ *prompt_str = (shell_context==0)? PS1 : PS2;
+#endif
}
-#endif
-
static int get_command(FILE * source, char *command)
{
char *prompt_str;
}
if (source == stdin) {
- prompt_str = setup_prompt_string(shell_context);
+ setup_prompt_string(&prompt_str);
-#ifdef BB_FEATURE_SH_COMMAND_EDITING
+#ifdef BB_FEATURE_COMMAND_EDITING
/*
** enable command line editing only while a command line
** is actually being read; otherwise, we'll end up bequeathing
*/
cmdedit_read_input(prompt_str, command);
cmdedit_terminate();
- free(prompt_str);
return 0;
#else
fputs(prompt_str, stdout);
- free(prompt_str);
#endif
}
}
#endif
+#if defined BB_FEATURE_SH_ENVIRONMENT && ! defined BB_FEATURE_SH_WORDEXP
+char * strsep_space( char *string, int * index)
+{
+ char *token, *begin;
+
+ begin = string;
+
+ /* Short circuit the trivial case */
+ if ( !string || ! string[*index])
+ return NULL;
+
+ /* Find the end of the token. */
+ while( string && string[*index] && !isspace(string[*index]) ) {
+ (*index)++;
+ }
+
+ /* Find the end of any whitespace trailing behind
+ * the token and let that be part of the token */
+ while( string && string[*index] && isspace(string[*index]) ) {
+ (*index)++;
+ }
+
+ if (! string && *index==0) {
+ /* Nothing useful was found */
+ return NULL;
+ }
+
+ token = xmalloc(*index);
+ token[*index] = '\0';
+ strncpy(token, string, *index);
+
+ return token;
+}
+#endif
+
+
static int expand_arguments(char *command)
{
#ifdef BB_FEATURE_SH_ENVIRONMENT
expand_t expand_result;
char *src, *dst, *var;
+ int index = 0;
int i=0, length, total_length=0, retval;
const char *out_of_space = "out of space during expansion";
#endif
/* get rid of the terminating \n */
chomp(command);
+
+ /* Fix up escape sequences to be the Real Thing(tm) */
+ while( command && command[index]) {
+ if (command[index] == '\\') {
+ char *tmp = command+index+1;
+ command[index+1] = process_escape_sequence( &tmp );
+ memmove(command+index, command+index+1, strlen(command+index));
+ }
+ index++;
+ }
#ifdef BB_FEATURE_SH_ENVIRONMENT
-#if ( (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) ) || defined (__UCLIBC__)
+#if BB_FEATURE_SH_WORDEXP
/* This first part uses wordexp() which is a wonderful C lib
* function which expands nearly everything. */
- retval = wordexp (command, &expand_result, 0);
+ retval = wordexp (command, &expand_result, WRDE_SHOWERR);
if (retval == WRDE_NOSPACE) {
/* Mem may have been allocated... */
wordfree (&expand_result);
{
int flags = GLOB_NOCHECK|GLOB_BRACE|GLOB_TILDE;
- char * tmpcmd, *cmd, *cmd_copy;
+ char *tmpcmd, *cmd, *cmd_copy;
/* We need a clean copy, so strsep can mess up the copy while
* we write stuff into the original (in a minute) */
cmd = cmd_copy = strdup(command);
*command = '\0';
- for (tmpcmd = cmd; (tmpcmd = strsep(&cmd, " \t")) != NULL;) {
+ for (index = 0, tmpcmd = cmd;
+ (tmpcmd = strsep_space(cmd, &index)) != NULL; cmd += index, index=0) {
if (*tmpcmd == '\0')
break;
retval = glob(tmpcmd, flags, NULL, &expand_result);
+ free(tmpcmd); /* Free mem allocated by strsep_space */
if (retval == GLOB_NOSPACE) {
/* Mem may have been allocated... */
globfree (&expand_result);
if (!parse_command(&next_command, &newjob, &inbg) &&
newjob.num_progs) {
int pipefds[2] = {-1,-1};
- debug_printf( "job=%p being fed to run_command by busy_loop()'\n", &newjob);
+ debug_printf( "job=%p fed to run_command by busy_loop()'\n",
+ &newjob);
run_command(&newjob, inbg, pipefds);
}
else {
atexit(free_memory);
#endif
+#ifdef BB_FEATURE_COMMAND_EDITING
+ cmdedit_set_initial_prompt();
+#else
+ PS1 = NULL;
+ PS2 = "> ";
+#endif
+
return (busy_loop(input));
}
+
//#define BB_FEATURE_SH_BACKTICKS
//
//If, then, else, etc. support.. This should now behave basically
-//like any other Bourne shell...
+//like any other Bourne shell -- sortof...
#define BB_FEATURE_SH_IF_EXPRESSIONS
//
-/* This is currently a little broken... */
-//#define HANDLE_CONTINUATION_CHARS
+/* This is currently sortof broken, only for the brave... */
+#undef HANDLE_CONTINUATION_CHARS
+//
+/* This would be great -- if wordexp wouldn't strip all quoting
+ * out from the target strings... As is, a parser needs */
+#undef BB_FEATURE_SH_WORDEXP
//
//For debugging/development on the shell only...
//#define DEBUG_SHELL
#include <unistd.h>
#include <getopt.h>
-//#undef __GLIBC__
-//#undef __UCLIBC__
+#undef BB_FEATURE_SH_WORDEXP
-#if ( (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) ) || defined (__UCLIBC__)
+#if BB_FEATURE_SH_WORDEXP
#include <wordexp.h>
#define expand_t wordexp_t
#undef BB_FEATURE_SH_BACKTICKS
static char syntax_err[]="syntax error near unexpected token";
#endif
+static char *PS1;
+static char *PS2;
+
+
#ifdef DEBUG_SHELL
static inline void debug_printf(const char *format, ...)
{
else
newdir = child->argv[1];
if (chdir(newdir)) {
- printf("cd: %s: %s\n", newdir, strerror(errno));
+ printf("cd: %s: %m\n", newdir);
return EXIT_FAILURE;
}
getcwd(cwd, sizeof(char)*MAX_LINE);
static int builtin_export(struct child_prog *child)
{
int res;
+ char *v = child->argv[1];
- if (child->argv[1] == NULL) {
+ if (v == NULL) {
return (builtin_env(child));
}
- res = putenv(child->argv[1]);
+ res = putenv(v);
if (res)
- fprintf(stderr, "export: %s\n", strerror(errno));
+ fprintf(stderr, "export: %m\n");
+#ifndef BB_FEATURE_SIMPLE_PROMPT
+ if (strncmp(v, "PS1=", 4)==0)
+ PS1 = getenv("PS1");
+ else if (strncmp(v, "PS2=", 4)==0)
+ PS2 = getenv("PS2");
+#endif
return (res);
}
if((s = strdup(string)))
res = putenv(s);
if (res)
- fprintf(stderr, "read: %s\n", strerror(errno));
+ fprintf(stderr, "read: %m\n");
}
else
fgets(string, sizeof(string), stdin);
if (openfd < 0) {
/* this could get lost if stderr has been redirected, but
bash and ash both lose it as well (though zsh doesn't!) */
- error_msg("error opening %s: %s", redir->filename,
- strerror(errno));
+ perror_msg("error opening %s", redir->filename);
return 1;
}
}
}
-#if defined(BB_FEATURE_SH_SIMPLE_PROMPT)
-static char* setup_prompt_string(int state)
+static inline void cmdedit_set_initial_prompt(void)
{
- char prompt_str[BUFSIZ];
-
- /* Set up the prompt */
- if (state == 0) {
- /* simple prompt */
- sprintf(prompt_str, "%s %s", cwd, ( geteuid() != 0 ) ? "$ ":"# ");
- } else {
- strcpy(prompt_str,"> ");
- }
-
- return(strdup(prompt_str)); /* Must free this memory */
-}
-
+#ifdef BB_FEATURE_SIMPLE_PROMPT
+ PS1 = NULL;
+ PS2 = "> ";
#else
+ PS1 = getenv("PS1");
+ if(PS1==0) {
+ PS1 = "\\w \\$ ";
+ }
+ PS2 = getenv("PS2");
+ if(PS2==0)
+ PS2 = "> ";
+#endif
+}
-static char* setup_prompt_string(int state)
+static inline void setup_prompt_string(char **prompt_str)
{
- char user[9],buf[255],*s;
- char prompt[3];
- char prompt_str[BUFSIZ];
-
+#ifdef BB_FEATURE_SIMPLE_PROMPT
/* Set up the prompt */
- if (state == 0) {
- /* get User Name and setup prompt */
- strcpy(prompt,( geteuid() != 0 ) ? "$ ":"# ");
- my_getpwuid(user, geteuid());
-
- /* get HostName */
- gethostname(buf, 255);
- s = strchr(buf, '.');
- if (s) {
- *s = 0;
- }
+ if (shell_context == 0) {
+ if (PS1)
+ free(PS1);
+ PS1=xmalloc(strlen(cwd)+4);
+ sprintf(PS1, "%s %s", cwd, ( geteuid() != 0 ) ? "$ ":"# ");
+ *prompt_str = PS1;
} else {
- strcpy(prompt,"> ");
+ *prompt_str = PS2;
}
-
- if (state == 0) {
- snprintf(prompt_str, BUFSIZ-1, "[%s@%s %s]%s", user, buf,
- get_last_path_component(cwd), prompt);
- } else {
- sprintf(prompt_str, "%s", prompt);
- }
- return(strdup(prompt_str)); /* Must free this memory */
+#else
+ *prompt_str = (shell_context==0)? PS1 : PS2;
+#endif
}
-#endif
-
static int get_command(FILE * source, char *command)
{
char *prompt_str;
}
if (source == stdin) {
- prompt_str = setup_prompt_string(shell_context);
+ setup_prompt_string(&prompt_str);
-#ifdef BB_FEATURE_SH_COMMAND_EDITING
+#ifdef BB_FEATURE_COMMAND_EDITING
/*
** enable command line editing only while a command line
** is actually being read; otherwise, we'll end up bequeathing
*/
cmdedit_read_input(prompt_str, command);
cmdedit_terminate();
- free(prompt_str);
return 0;
#else
fputs(prompt_str, stdout);
- free(prompt_str);
#endif
}
}
#endif
+#if defined BB_FEATURE_SH_ENVIRONMENT && ! defined BB_FEATURE_SH_WORDEXP
+char * strsep_space( char *string, int * index)
+{
+ char *token, *begin;
+
+ begin = string;
+
+ /* Short circuit the trivial case */
+ if ( !string || ! string[*index])
+ return NULL;
+
+ /* Find the end of the token. */
+ while( string && string[*index] && !isspace(string[*index]) ) {
+ (*index)++;
+ }
+
+ /* Find the end of any whitespace trailing behind
+ * the token and let that be part of the token */
+ while( string && string[*index] && isspace(string[*index]) ) {
+ (*index)++;
+ }
+
+ if (! string && *index==0) {
+ /* Nothing useful was found */
+ return NULL;
+ }
+
+ token = xmalloc(*index);
+ token[*index] = '\0';
+ strncpy(token, string, *index);
+
+ return token;
+}
+#endif
+
+
static int expand_arguments(char *command)
{
#ifdef BB_FEATURE_SH_ENVIRONMENT
expand_t expand_result;
char *src, *dst, *var;
+ int index = 0;
int i=0, length, total_length=0, retval;
const char *out_of_space = "out of space during expansion";
#endif
/* get rid of the terminating \n */
chomp(command);
+
+ /* Fix up escape sequences to be the Real Thing(tm) */
+ while( command && command[index]) {
+ if (command[index] == '\\') {
+ char *tmp = command+index+1;
+ command[index+1] = process_escape_sequence( &tmp );
+ memmove(command+index, command+index+1, strlen(command+index));
+ }
+ index++;
+ }
#ifdef BB_FEATURE_SH_ENVIRONMENT
-#if ( (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) ) || defined (__UCLIBC__)
+#if BB_FEATURE_SH_WORDEXP
/* This first part uses wordexp() which is a wonderful C lib
* function which expands nearly everything. */
- retval = wordexp (command, &expand_result, 0);
+ retval = wordexp (command, &expand_result, WRDE_SHOWERR);
if (retval == WRDE_NOSPACE) {
/* Mem may have been allocated... */
wordfree (&expand_result);
{
int flags = GLOB_NOCHECK|GLOB_BRACE|GLOB_TILDE;
- char * tmpcmd, *cmd, *cmd_copy;
+ char *tmpcmd, *cmd, *cmd_copy;
/* We need a clean copy, so strsep can mess up the copy while
* we write stuff into the original (in a minute) */
cmd = cmd_copy = strdup(command);
*command = '\0';
- for (tmpcmd = cmd; (tmpcmd = strsep(&cmd, " \t")) != NULL;) {
+ for (index = 0, tmpcmd = cmd;
+ (tmpcmd = strsep_space(cmd, &index)) != NULL; cmd += index, index=0) {
if (*tmpcmd == '\0')
break;
retval = glob(tmpcmd, flags, NULL, &expand_result);
+ free(tmpcmd); /* Free mem allocated by strsep_space */
if (retval == GLOB_NOSPACE) {
/* Mem may have been allocated... */
globfree (&expand_result);
if (!parse_command(&next_command, &newjob, &inbg) &&
newjob.num_progs) {
int pipefds[2] = {-1,-1};
- debug_printf( "job=%p being fed to run_command by busy_loop()'\n", &newjob);
+ debug_printf( "job=%p fed to run_command by busy_loop()'\n",
+ &newjob);
run_command(&newjob, inbg, pipefds);
}
else {
atexit(free_memory);
#endif
+#ifdef BB_FEATURE_COMMAND_EDITING
+ cmdedit_set_initial_prompt();
+#else
+ PS1 = NULL;
+ PS2 = "> ";
+#endif
+
return (busy_loop(input));
}
+
Small bugs (simple effect):
- not true viewing if terminal size (x*y symbols) less
size (prompt + editor`s line + 2 symbols)
+ - not true viewing if length prompt less terminal width
*/
#else
-#define BB_FEATURE_SH_COMMAND_EDITING
-#define BB_FEATURE_SH_TAB_COMPLETION
-#define BB_FEATURE_SH_USERNAME_COMPLETION
+#define BB_FEATURE_COMMAND_EDITING
+#define BB_FEATURE_COMMAND_TAB_COMPLETION
+#define BB_FEATURE_COMMAND_USERNAME_COMPLETION
#define BB_FEATURE_NONPRINTABLE_INVERSE_PUT
-#define BB_FEATURE_BASH_STYLE_PROMT
+#undef BB_FEATURE_SIMPLE_PROMPT
#define BB_FEATURE_CLEAN_UP
#define D(x) x
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
#endif /* TEST */
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
#include <dirent.h>
#include <sys/stat.h>
#endif
-#ifdef BB_FEATURE_SH_COMMAND_EDITING
+#ifdef BB_FEATURE_COMMAND_EDITING
-#ifndef BB_FEATURE_SH_TAB_COMPLETION
-#undef BB_FEATURE_SH_USERNAME_COMPLETION
+#ifndef BB_FEATURE_COMMAND_TAB_COMPLETION
+#undef BB_FEATURE_COMMAND_USERNAME_COMPLETION
#endif
-#if defined(BB_FEATURE_SH_USERNAME_COMPLETION) || defined(BB_FEATURE_BASH_STYLE_PROMT)
+#if defined(BB_FEATURE_COMMAND_USERNAME_COMPLETION) || !defined(BB_FEATURE_SIMPLE_PROMPT)
#define BB_FEATURE_GETUSERNAME_AND_HOMEDIR
#endif
volatile int handlers_sets = 0; /* Set next bites: */
enum {
- SET_ATEXIT = 1, /* when atexit() has been called and
- get euid,uid,gid to fast compare */
- SET_TERM_HANDLERS = 2, /* set many terminates signal handlers */
- SET_WCHG_HANDLERS = 4, /* winchg signal handler */
- SET_RESET_TERM = 8, /* if the terminal needs to be reset upon exit */
+ SET_ATEXIT = 1, /* when atexit() has been called
+ and get euid,uid,gid to fast compare */
+ SET_TERM_HANDLERS = 2, /* set many terminates signal handlers */
+ SET_WCHG_HANDLERS = 4, /* winchg signal handler */
+ SET_RESET_TERM = 8, /* if the terminal needs to be reset upon exit */
};
-static int cmdedit_x; /* real x terminal position */
-static int cmdedit_y; /* pseudoreal y terminal position */
+static int cmdedit_x; /* real x terminal position */
+static int cmdedit_y; /* pseudoreal y terminal position */
static int cmdedit_prmt_len; /* lenght prompt without colores string */
-static int cursor; /* required global for signal handler */
-static int len; /* --- "" - - "" - -"- --""-- --""--- */
-static char *command_ps; /* --- "" - - "" - -"- --""-- --""--- */
+static int cursor; /* required global for signal handler */
+static int len; /* --- "" - - "" - -"- --""-- --""--- */
+static char *command_ps; /* --- "" - - "" - -"- --""-- --""--- */
static
-#ifndef BB_FEATURE_BASH_STYLE_PROMT
+#ifdef BB_FEATURE_SIMPLE_PROMPT
const
#endif
-char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
+char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
/* Link into lash to reset context to 0 on ^C and such */
extern unsigned int shell_context;
static int my_euid;
#endif
-#ifdef BB_FEATURE_BASH_STYLE_PROMT
+#ifndef BB_FEATURE_SIMPLE_PROMPT
static char *hostname_buf = "";
static int num_ok_lines = 1;
#endif
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
static int my_euid;
static int my_uid;
static int my_gid;
-#endif /* BB_FEATURE_SH_TAB_COMPLETION */
+#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
static void cmdedit_setwidth(int w, int redraw_flg);
if (his_front) {
struct history *n;
- //while(his_front!=his_end) {
while (his_front != his_end) {
n = his_front->n;
free(his_front->s);
cursor = 0;
}
-#ifdef BB_FEATURE_BASH_STYLE_PROMT
-static void
-add_to_prompt(char **prmt_mem_ptr, int *alm, int *prmt_len,
- const char *addb)
+#ifdef BB_FEATURE_SIMPLE_PROMPT
+static void parse_prompt(const char *prmt_ptr)
{
- int l = strlen(addb);
-
- *prmt_len += l;
+ cmdedit_prompt = prmt_ptr;
+ cmdedit_prmt_len = strlen(prmt_ptr);
+ put_prompt();
+}
+#else
+static void add_to_prompt(char **prmt_mem_ptr, int *alm,
+ int *prmt_len, const char *addb)
+{
+ *prmt_len += strlen(addb);
if (*alm < (*prmt_len) + 1) {
*alm = (*prmt_len) + 1;
*prmt_mem_ptr = xrealloc(*prmt_mem_ptr, *alm);
}
strcat(*prmt_mem_ptr, addb);
}
-#endif
static void parse_prompt(const char *prmt_ptr)
{
-#ifdef BB_FEATURE_BASH_STYLE_PROMT
int alm = strlen(prmt_ptr) + 1; /* supposedly require memory */
int prmt_len = 0;
int sub_len = 0;
break;
prmt_ptr++;
switch (c) {
+#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
case 'u':
add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, user_buf);
continue;
+#endif
case 'h':
if (hostname_buf[0] == 0) {
hostname_buf = xcalloc(256, 1);
case '$':
c = my_euid == 0 ? '#' : '$';
break;
+#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
case 'w':
if (pwd_buf[0] == 0) {
int l;
}
add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, pwd_buf);
continue;
+#endif
case '!':
snprintf(buf, sizeof(buf), "%d", num_ok_lines);
add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, buf);
if (flg_not_length == ']')
sub_len++;
}
+#if 0
cmdedit_prmt_len = prmt_len - sub_len;
- cmdedit_prompt = prmt_mem_ptr;
-#else
cmdedit_prompt = prmt_ptr;
- cmdedit_prmt_len = strlen(prmt_ptr);
-#endif
+#endif
+ cmdedit_prompt = prmt_mem_ptr;
+ cmdedit_prmt_len = strlen(cmdedit_prompt);
put_prompt();
}
+#endif
/* draw promt, editor line, and clear tail */
static void redraw(int y, int back_cursor)
{
- if (y > 0) /* up to start y */
+ if (y > 0) /* up to start y */
printf("\033[%dA", y);
cmdedit_y = 0; /* new quasireal y */
putchar('\r');
strcpy(command_ps + j, command_ps + j + 1);
len--;
- input_end(); /* rewtite new line */
+ input_end(); /* rewtite new line */
cmdedit_set_out_char(0); /* destroy end char */
input_backward(cursor - j); /* back to old pos cursor */
}
{
goto_new_line();
if (sig != SIGINT)
- exit(EXIT_SUCCESS); /* cmdedit_reset_term() called in atexit */
+ exit(EXIT_SUCCESS); /* cmdedit_reset_term() called in atexit */
cmdedit_reset_term();
}
cmdedit_termw = cmdedit_termw % w;
}
if (w > cmdedit_termw) {
-
cmdedit_termw = w;
if (redraw_flg) {
}
#endif
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
my_euid = geteuid();
#endif
my_uid = getuid();
my_gid = getgid();
-#endif /* BB_FEATURE_SH_TAB_COMPLETION */
+#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
handlers_sets |= SET_ATEXIT;
atexit(cmdedit_reset_term); /* be sure to do this only once */
}
}
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
static int is_execute(const struct stat *st)
{
return FALSE;
}
-#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
+#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
static char **username_tab_completion(char *ud, int *num_matches)
{
char *temp;
- ud++; /* ~user/... to user/... */
+ ud++; /* ~user/... to user/... */
userlen = strlen(ud);
if (num_matches == 0) { /* "~/..." or "~user/..." */
char *sav_ud = ud - 1;
char *home = 0;
- if (*ud == '/') { /* "~/..." */
+ if (*ud == '/') { /* "~/..." */
home = home_pwd_buf;
} else {
/* "~user/..." */
temp = strchr(ud, '/');
- *temp = 0; /* ~user\0 */
+ *temp = 0; /* ~user\0 */
entry = getpwnam(ud);
*temp = '/'; /* restore ~user/... */
ud = temp;
strcpy(sav_ud, temp2);
}
}
- return 0; /* void, result save to argument :-) */
+ return 0; /* void, result save to argument :-) */
} else {
/* "~[^/]*" */
char **matches = (char **) NULL;
return (matches);
}
}
-#endif /* BB_FEATURE_SH_USERNAME_COMPLETION */
+#endif /* BB_FEATURE_COMMAND_USERNAME_COMPLETION */
enum {
FIND_EXE_ONLY = 0,
npth = 0;
for (;;) {
- npth++; /* count words is + 1 count ':' */
+ npth++; /* count words is + 1 count ':' */
tmp = strchr(tmp, ':');
if (tmp) {
if (*++tmp == 0)
- break; /* :<empty> */
+ break; /* :<empty> */
} else
break;
}
tmp = pth;
(*p)[0] = xstrdup(tmp);
- npth = 1; /* count words is + 1 count ':' */
+ npth = 1; /* count words is + 1 count ':' */
for (;;) {
tmp = strchr(tmp, ':');
}
static char **exe_n_cwd_tab_completion(char *command, int *num_matches,
- int type)
+ int type)
{
char **matches = 0;
strcpy(dirbuf, command);
/* set dir only */
dirbuf[(pfind - command) + 1] = 0;
-#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
+#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
if (dirbuf[0] == '~') /* ~/... or ~user/... */
username_tab_completion(dirbuf, 0);
#endif
for (i = 0; i < npaths; i++) {
dir = opendir(paths[i]);
- if (!dir) /* Don't print an error */
+ if (!dir) /* Don't print an error */
continue;
while ((next = readdir(dir)) != NULL) {
for (i = 0; int_buf[i]; i++)
if (int_buf[i] == ' ' || int_buf[i] == '<' || int_buf[i] == '>') {
if (int_buf[i] == ' ' && command_mode == FIND_EXE_ONLY
- && strncmp(&matchBuf[pos_buf[0]], "cd", 2) == 0)
+ && matchBuf[pos_buf[0]]=='c'
+ && matchBuf[pos_buf[1]]=='d' )
command_mode = FIND_DIR_ONLY;
else {
command_mode = FIND_FILE_ONLY;
/* Free up any memory already allocated */
input_tab(0);
-#ifdef BB_FEATURE_SH_USERNAME_COMPLETION
+#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
/* If the word starts with `~' and there is no slash in the word,
* then try completing this word as a username. */
beep();
if (!matches)
- return; /* not found */
+ return; /* not found */
/* sort */
qsort(matches, num_matches, sizeof(char *), match_compare);
free(tmp);
return;
}
- } else { /* one match */
+ } else { /* one match */
tmp = matches[0];
/* for next completion current found */
*lastWasTab = FALSE;
}
}
}
-#endif /* BB_FEATURE_SH_TAB_COMPLETION */
+#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
static void get_previous_history(struct history **hp, struct history *p)
{
* Furthermore, the "vi" command editing keys are not implemented.
*
*/
+
extern void cmdedit_read_input(char *prompt, char command[BUFSIZ])
{
struct history *hp = his_end;
/* prepare before init handlers */
- cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
+ cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
len = 0;
command_ps = command;
new_settings.c_cc[VMIN] = 1;
new_settings.c_cc[VTIME] = 0;
- new_settings.c_cc[VINTR] = _POSIX_VDISABLE; /* Turn off CTRL-C, so we can trap it */
+ /* Turn off CTRL-C, so we can trap it */
+ new_settings.c_cc[VINTR] = _POSIX_VDISABLE;
new_settings.c_lflag &= ~ICANON; /* unbuffered input */
- new_settings.c_lflag &= ~(ECHO | ECHOCTL | ECHONL); /* Turn off echoing */
+ /* Turn off echoing */
+ new_settings.c_lflag &= ~(ECHO | ECHOCTL | ECHONL);
}
command[0] = 0;
input_backspace();
break;
case '\t':
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
input_tab(&lastWasTab);
#endif
break;
return;
}
switch (c) {
-#ifdef BB_FEATURE_SH_TAB_COMPLETION
+#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
case '\t': /* Alt-Tab */
input_tab(&lastWasTab);
break;
}
- default: /* If it's regular input, do the normal thing */
+ default: /* If it's regular input, do the normal thing */
#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
/* Control-V -- Add non-printable symbol */
if (c == 22) {
history_counter++;
}
}
-#if defined(BB_FEATURE_BASH_STYLE_PROMT)
+#if !defined(BB_FEATURE_SIMPLE_PROMPT)
num_ok_lines++;
#endif
}
command[len++] = '\n'; /* set '\n' */
command[len] = 0;
-#if defined(BB_FEATURE_CLEAN_UP) && defined(BB_FEATURE_SH_TAB_COMPLETION)
+#if defined(BB_FEATURE_CLEAN_UP) && defined(BB_FEATURE_COMMAND_TAB_COMPLETION)
input_tab(0); /* strong free */
#endif
-#if defined(BB_FEATURE_BASH_STYLE_PROMT)
+#if !defined(BB_FEATURE_SIMPLE_PROMPT)
free(cmdedit_prompt);
#endif
return;
}
}
-#endif /* BB_FEATURE_SH_COMMAND_EDITING */
+#endif /* BB_FEATURE_COMMAND_EDITING */
#ifdef TEST
{
char buff[BUFSIZ];
char *prompt =
-#if defined(BB_FEATURE_BASH_STYLE_PROMT)
- "\\[\\033[32;1m\\]\\u@\\[\\033[33;1m\\]\\h:\
+#if !defined(BB_FEATURE_SIMPLE_PROMPT)
+ "\\[\\033[32;1m\\]\\u@\\[\\x1b[33;1m\\]\\h:\
\\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] \
-\\!\\[\\033[36;1m\\]\\$ \\[\\033[0m\\]";
+\\!\\[\\e[36;1m\\]\\$ \\[\\E[0m\\]";
#else
"% ";
#endif
shell_context = 1;
do {
+ int l;
cmdedit_read_input(prompt, buff);
+ l = strlen(buff);
+ if(l > 0 && buff[l-1] == '\n')
+ buff[l-1] = 0;
printf("*** cmdedit_read_input() returned line =%s=\n", buff);
} while (shell_context);
printf("*** cmdedit_read_input() detect ^C\n");
return 0;
}
-#endif /* TEST */
+#endif /* TEST */
#ifndef CMDEDIT_H
#define CMDEDIT_H
-#ifdef BB_FEATURE_SH_COMMAND_EDITING
+#ifdef BB_FEATURE_COMMAND_EDITING
#include <stddef.h>
+#include "busybox.h"
void cmdedit_init(void);
void cmdedit_terminate(void);
void cmdedit_read_input(char* promptStr, char* command); /* read a line of input */
-#endif /* BB_FEATURE_SH_COMMAND_EDITING */
+#endif /* BB_FEATURE_COMMAND_EDITING */
#endif /* CMDEDIT_H */
//#define BB_FEATURE_SH_BACKTICKS
//
//If, then, else, etc. support.. This should now behave basically
-//like any other Bourne shell...
+//like any other Bourne shell -- sortof...
#define BB_FEATURE_SH_IF_EXPRESSIONS
//
-/* This is currently a little broken... */
-//#define HANDLE_CONTINUATION_CHARS
+/* This is currently sortof broken, only for the brave... */
+#undef HANDLE_CONTINUATION_CHARS
+//
+/* This would be great -- if wordexp wouldn't strip all quoting
+ * out from the target strings... As is, a parser needs */
+#undef BB_FEATURE_SH_WORDEXP
//
//For debugging/development on the shell only...
//#define DEBUG_SHELL
#include <unistd.h>
#include <getopt.h>
-//#undef __GLIBC__
-//#undef __UCLIBC__
+#undef BB_FEATURE_SH_WORDEXP
-#if ( (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) ) || defined (__UCLIBC__)
+#if BB_FEATURE_SH_WORDEXP
#include <wordexp.h>
#define expand_t wordexp_t
#undef BB_FEATURE_SH_BACKTICKS
static char syntax_err[]="syntax error near unexpected token";
#endif
+static char *PS1;
+static char *PS2;
+
+
#ifdef DEBUG_SHELL
static inline void debug_printf(const char *format, ...)
{
else
newdir = child->argv[1];
if (chdir(newdir)) {
- printf("cd: %s: %s\n", newdir, strerror(errno));
+ printf("cd: %s: %m\n", newdir);
return EXIT_FAILURE;
}
getcwd(cwd, sizeof(char)*MAX_LINE);
static int builtin_export(struct child_prog *child)
{
int res;
+ char *v = child->argv[1];
- if (child->argv[1] == NULL) {
+ if (v == NULL) {
return (builtin_env(child));
}
- res = putenv(child->argv[1]);
+ res = putenv(v);
if (res)
- fprintf(stderr, "export: %s\n", strerror(errno));
+ fprintf(stderr, "export: %m\n");
+#ifndef BB_FEATURE_SIMPLE_PROMPT
+ if (strncmp(v, "PS1=", 4)==0)
+ PS1 = getenv("PS1");
+ else if (strncmp(v, "PS2=", 4)==0)
+ PS2 = getenv("PS2");
+#endif
return (res);
}
if((s = strdup(string)))
res = putenv(s);
if (res)
- fprintf(stderr, "read: %s\n", strerror(errno));
+ fprintf(stderr, "read: %m\n");
}
else
fgets(string, sizeof(string), stdin);
if (openfd < 0) {
/* this could get lost if stderr has been redirected, but
bash and ash both lose it as well (though zsh doesn't!) */
- error_msg("error opening %s: %s", redir->filename,
- strerror(errno));
+ perror_msg("error opening %s", redir->filename);
return 1;
}
}
}
-#if defined(BB_FEATURE_SH_SIMPLE_PROMPT)
-static char* setup_prompt_string(int state)
+static inline void cmdedit_set_initial_prompt(void)
{
- char prompt_str[BUFSIZ];
-
- /* Set up the prompt */
- if (state == 0) {
- /* simple prompt */
- sprintf(prompt_str, "%s %s", cwd, ( geteuid() != 0 ) ? "$ ":"# ");
- } else {
- strcpy(prompt_str,"> ");
- }
-
- return(strdup(prompt_str)); /* Must free this memory */
-}
-
+#ifdef BB_FEATURE_SIMPLE_PROMPT
+ PS1 = NULL;
+ PS2 = "> ";
#else
+ PS1 = getenv("PS1");
+ if(PS1==0) {
+ PS1 = "\\w \\$ ";
+ }
+ PS2 = getenv("PS2");
+ if(PS2==0)
+ PS2 = "> ";
+#endif
+}
-static char* setup_prompt_string(int state)
+static inline void setup_prompt_string(char **prompt_str)
{
- char user[9],buf[255],*s;
- char prompt[3];
- char prompt_str[BUFSIZ];
-
+#ifdef BB_FEATURE_SIMPLE_PROMPT
/* Set up the prompt */
- if (state == 0) {
- /* get User Name and setup prompt */
- strcpy(prompt,( geteuid() != 0 ) ? "$ ":"# ");
- my_getpwuid(user, geteuid());
-
- /* get HostName */
- gethostname(buf, 255);
- s = strchr(buf, '.');
- if (s) {
- *s = 0;
- }
+ if (shell_context == 0) {
+ if (PS1)
+ free(PS1);
+ PS1=xmalloc(strlen(cwd)+4);
+ sprintf(PS1, "%s %s", cwd, ( geteuid() != 0 ) ? "$ ":"# ");
+ *prompt_str = PS1;
} else {
- strcpy(prompt,"> ");
+ *prompt_str = PS2;
}
-
- if (state == 0) {
- snprintf(prompt_str, BUFSIZ-1, "[%s@%s %s]%s", user, buf,
- get_last_path_component(cwd), prompt);
- } else {
- sprintf(prompt_str, "%s", prompt);
- }
- return(strdup(prompt_str)); /* Must free this memory */
+#else
+ *prompt_str = (shell_context==0)? PS1 : PS2;
+#endif
}
-#endif
-
static int get_command(FILE * source, char *command)
{
char *prompt_str;
}
if (source == stdin) {
- prompt_str = setup_prompt_string(shell_context);
+ setup_prompt_string(&prompt_str);
-#ifdef BB_FEATURE_SH_COMMAND_EDITING
+#ifdef BB_FEATURE_COMMAND_EDITING
/*
** enable command line editing only while a command line
** is actually being read; otherwise, we'll end up bequeathing
*/
cmdedit_read_input(prompt_str, command);
cmdedit_terminate();
- free(prompt_str);
return 0;
#else
fputs(prompt_str, stdout);
- free(prompt_str);
#endif
}
}
#endif
+#if defined BB_FEATURE_SH_ENVIRONMENT && ! defined BB_FEATURE_SH_WORDEXP
+char * strsep_space( char *string, int * index)
+{
+ char *token, *begin;
+
+ begin = string;
+
+ /* Short circuit the trivial case */
+ if ( !string || ! string[*index])
+ return NULL;
+
+ /* Find the end of the token. */
+ while( string && string[*index] && !isspace(string[*index]) ) {
+ (*index)++;
+ }
+
+ /* Find the end of any whitespace trailing behind
+ * the token and let that be part of the token */
+ while( string && string[*index] && isspace(string[*index]) ) {
+ (*index)++;
+ }
+
+ if (! string && *index==0) {
+ /* Nothing useful was found */
+ return NULL;
+ }
+
+ token = xmalloc(*index);
+ token[*index] = '\0';
+ strncpy(token, string, *index);
+
+ return token;
+}
+#endif
+
+
static int expand_arguments(char *command)
{
#ifdef BB_FEATURE_SH_ENVIRONMENT
expand_t expand_result;
char *src, *dst, *var;
+ int index = 0;
int i=0, length, total_length=0, retval;
const char *out_of_space = "out of space during expansion";
#endif
/* get rid of the terminating \n */
chomp(command);
+
+ /* Fix up escape sequences to be the Real Thing(tm) */
+ while( command && command[index]) {
+ if (command[index] == '\\') {
+ char *tmp = command+index+1;
+ command[index+1] = process_escape_sequence( &tmp );
+ memmove(command+index, command+index+1, strlen(command+index));
+ }
+ index++;
+ }
#ifdef BB_FEATURE_SH_ENVIRONMENT
-#if ( (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) ) || defined (__UCLIBC__)
+#if BB_FEATURE_SH_WORDEXP
/* This first part uses wordexp() which is a wonderful C lib
* function which expands nearly everything. */
- retval = wordexp (command, &expand_result, 0);
+ retval = wordexp (command, &expand_result, WRDE_SHOWERR);
if (retval == WRDE_NOSPACE) {
/* Mem may have been allocated... */
wordfree (&expand_result);
{
int flags = GLOB_NOCHECK|GLOB_BRACE|GLOB_TILDE;
- char * tmpcmd, *cmd, *cmd_copy;
+ char *tmpcmd, *cmd, *cmd_copy;
/* We need a clean copy, so strsep can mess up the copy while
* we write stuff into the original (in a minute) */
cmd = cmd_copy = strdup(command);
*command = '\0';
- for (tmpcmd = cmd; (tmpcmd = strsep(&cmd, " \t")) != NULL;) {
+ for (index = 0, tmpcmd = cmd;
+ (tmpcmd = strsep_space(cmd, &index)) != NULL; cmd += index, index=0) {
if (*tmpcmd == '\0')
break;
retval = glob(tmpcmd, flags, NULL, &expand_result);
+ free(tmpcmd); /* Free mem allocated by strsep_space */
if (retval == GLOB_NOSPACE) {
/* Mem may have been allocated... */
globfree (&expand_result);
if (!parse_command(&next_command, &newjob, &inbg) &&
newjob.num_progs) {
int pipefds[2] = {-1,-1};
- debug_printf( "job=%p being fed to run_command by busy_loop()'\n", &newjob);
+ debug_printf( "job=%p fed to run_command by busy_loop()'\n",
+ &newjob);
run_command(&newjob, inbg, pipefds);
}
else {
atexit(free_memory);
#endif
+#ifdef BB_FEATURE_COMMAND_EDITING
+ cmdedit_set_initial_prompt();
+#else
+ PS1 = NULL;
+ PS2 = "> ";
+#endif
+
return (busy_loop(input));
}
+
projects / platform / upstream / busybox.git / commitdiff