* Termios command line History and Editting.
*
* Copyright (c) 1986-2001 may safely be consumed by a BSD or GPL license.
- * Written by: Vladimir Oleynik <vodz@usa.net>
+ * Written by: Vladimir Oleynik <dzo@simtreas.ru>
*
* Used ideas:
* Adam Rogoyski <rogoyski@cs.utexas.edu>
*/
-//#define TEST
-
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
#include <limits.h>
-#ifndef TEST
-
#include "busybox.h"
+#ifdef CONFIG_LOCALE_SUPPORT
+#define Isprint(c) isprint((c))
+#else
+#define Isprint(c) ( (c) >= ' ' && (c) != ((unsigned char)'\233') )
+#endif
+
+#ifndef TEST
+
#define D(x)
#else
-#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_CLEAN_UP
+#define CONFIG_FEATURE_COMMAND_EDITING
+#define CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+#define CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
+#define CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+#define CONFIG_FEATURE_CLEAN_UP
#define D(x) x
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
#endif /* TEST */
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
#include <dirent.h>
#include <sys/stat.h>
#endif
-#ifdef BB_FEATURE_COMMAND_EDITING
+#ifdef CONFIG_FEATURE_COMMAND_EDITING
-#ifndef BB_FEATURE_COMMAND_TAB_COMPLETION
-#undef BB_FEATURE_COMMAND_USERNAME_COMPLETION
+#ifndef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
+#undef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
#endif
-#if defined(BB_FEATURE_COMMAND_USERNAME_COMPLETION) || !defined(BB_FEATURE_SH_SIMPLE_PROMPT)
-#define BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#if defined(CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION) || defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
+#define CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
#endif
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
-#ifndef TEST
-#include "pwd_grp/pwd.h"
-#else
-#include <pwd.h>
-#endif /* TEST */
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+# ifndef TEST
+# include "pwd_.h"
+# else
+# endif /* TEST */
#endif /* advanced FEATURES */
-#ifdef TEST
-void *xrealloc(void *old, size_t size)
-{
- return realloc(old, size);
-}
-
-void *xmalloc(size_t size)
-{
- return malloc(size);
-}
-char *xstrdup(const char *s)
-{
- return strdup(s);
-}
-
-void *xcalloc(size_t size, size_t se)
-{
- return calloc(size, se);
-}
-
-#define error_msg(s, d) fprintf(stderr, s, d)
-#endif
-
-
-struct history {
- char *s;
- struct history *p;
- struct history *n;
-};
-
/* Maximum length of the linked list for the command line history */
-static const int MAX_HISTORY = 15;
-
-/* First element in command line list */
-static struct history *his_front = NULL;
-
-/* Last element in command line list */
-static struct history *his_end = NULL;
-
-
-/* ED: sparc termios is broken: revert back to old termio handling. */
-
-#if #cpu(sparc)
-# include <termio.h>
-# define termios termio
-# define setTermSettings(fd,argp) ioctl(fd,TCSETAF,argp)
-# define getTermSettings(fd,argp) ioctl(fd,TCGETA,argp)
+#define MAX_HISTORY 15
+#if MAX_HISTORY < 1
+#warning cmdedit: You set MAX_HISTORY < 1. The history algorithm switched off.
#else
-# include <termios.h>
-# define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
-# define getTermSettings(fd,argp) tcgetattr(fd, argp);
+static char *history[MAX_HISTORY+1]; /* history + current */
+/* saved history lines */
+static int n_history;
+/* current pointer to history line */
+static int cur_history;
#endif
+#include <termios.h>
+#define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp)
+#define getTermSettings(fd,argp) tcgetattr(fd, argp);
+
/* Current termio and the previous termio before starting sh */
static struct termios initial_settings, new_settings;
-#ifndef _POSIX_VDISABLE
-#define _POSIX_VDISABLE '\0'
-#endif
-
-
static
volatile int cmdedit_termw = 80; /* actual terminal width */
-static int history_counter = 0; /* Number of commands in history list */
static
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_WCHG_HANDLERS = 2, /* winchg signal handler */
+ SET_RESET_TERM = 4, /* if the terminal needs to be reset upon exit */
};
static int len; /* --- "" - - "" - -"- --""-- --""--- */
static char *command_ps; /* --- "" - - "" - -"- --""-- --""--- */
static
-#ifdef BB_FEATURE_SH_SIMPLE_PROMPT
+#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT
const
#endif
char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */
-/* Link into lash to reset context to 0 on ^C and such */
-extern unsigned int shell_context;
-
-
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
static char *user_buf = "";
static char *home_pwd_buf = "";
static int my_euid;
#endif
-#ifndef BB_FEATURE_SH_SIMPLE_PROMPT
-static char *hostname_buf = "";
+#ifdef CONFIG_FEATURE_SH_FANCY_PROMPT
+static char *hostname_buf;
static int num_ok_lines = 1;
#endif
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
-#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifndef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
static int my_euid;
#endif
static int my_uid;
static int my_gid;
-#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
+/* It seems that libc5 doesn't know what a sighandler_t is... */
+#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
+typedef void (*sighandler_t) (int);
+#endif
static void cmdedit_setwidth(int w, int redraw_flg);
static void win_changed(int nsig)
{
struct winsize win = { 0, 0, 0, 0 };
- static __sighandler_t previous_SIGWINCH_handler; /* for reset */
+ static sighandler_t previous_SIGWINCH_handler; /* for reset */
/* emulate || signal call */
if (nsig == -SIGWINCH || nsig == SIGWINCH) {
static void cmdedit_reset_term(void)
{
if ((handlers_sets & SET_RESET_TERM) != 0) {
- /* sparc and other have broken termios support: use old termio handling. */
+/* sparc and other have broken termios support: use old termio handling. */
setTermSettings(fileno(stdin), (void *) &initial_settings);
handlers_sets &= ~SET_RESET_TERM;
}
handlers_sets &= ~SET_WCHG_HANDLERS;
}
fflush(stdout);
-#ifdef BB_FEATURE_CLEAN_UP
- if (his_front) {
- struct history *n;
-
- while (his_front != his_end) {
- n = his_front->n;
- free(his_front->s);
- free(his_front);
- his_front = n;
- }
- }
-#endif
}
int c = (int)((unsigned char) command_ps[cursor]);
if (c == 0)
- c = ' '; /* destroy end char? */
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
- if (!isprint(c)) { /* Inverse put non-printable characters */
+ c = ' '; /* destroy end char? */
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
+ if (!Isprint(c)) { /* Inverse put non-printable characters */
if (c >= 128)
c -= 128;
if (c < ' ')
static inline void out1str(const char *s)
{
- fputs(s, stdout);
+ if ( s )
+ fputs(s, stdout);
}
static inline void beep(void)
{
{
if (num > cursor)
num = cursor;
- cursor -= num; /* new cursor (in command, not terminal) */
+ cursor -= num; /* new cursor (in command, not terminal) */
if (cmdedit_x >= num) { /* no to up line */
cmdedit_x -= num;
out1str(cmdedit_prompt);
cmdedit_x = cmdedit_prmt_len; /* count real x terminal position */
cursor = 0;
+ cmdedit_y = 0; /* new quasireal y */
}
-#ifdef BB_FEATURE_SH_SIMPLE_PROMPT
+#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT
static void parse_prompt(const char *prmt_ptr)
{
cmdedit_prompt = 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);
-}
-
static void parse_prompt(const char *prmt_ptr)
{
- int alm = strlen(prmt_ptr) + 1; /* supposedly require memory */
int prmt_len = 0;
int sub_len = 0;
- int flg_not_length = '[';
- char *prmt_mem_ptr = xstrdup(prmt_ptr);
- char pwd_buf[PATH_MAX + 1];
- char buf[16];
- int c;
-
- pwd_buf[0] = 0;
- *prmt_mem_ptr = 0;
+ char flg_not_length = '[';
+ char *prmt_mem_ptr = xcalloc(1, 1);
+ char *pwd_buf = xgetcwd(0);
+ char buf2[PATH_MAX + 1];
+ char buf[2];
+ char c;
+ char *pbuf;
+
+ if (!pwd_buf) {
+ pwd_buf=(char *)unknown;
+ }
while (*prmt_ptr) {
+ pbuf = buf;
+ pbuf[1] = 0;
c = *prmt_ptr++;
if (c == '\\') {
- c = *prmt_ptr;
- if (c == 0)
+ const char *cp = prmt_ptr;
+ int l;
+
+ c = process_escape_sequence(&prmt_ptr);
+ if(prmt_ptr==cp) {
+ if (*cp == 0)
+ break;
+ c = *prmt_ptr++;
+ switch (c) {
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+ case 'u':
+ pbuf = user_buf;
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);
- if (gethostname(hostname_buf, 255) < 0) {
- strcpy(hostname_buf, "?");
+ case 'h':
+ pbuf = hostname_buf;
+ if (pbuf == 0) {
+ pbuf = xcalloc(256, 1);
+ if (gethostname(pbuf, 255) < 0) {
+ strcpy(pbuf, "?");
} else {
- char *s = strchr(hostname_buf, '.');
+ char *s = strchr(pbuf, '.');
if (s)
*s = 0;
}
+ hostname_buf = pbuf;
}
- add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len,
- hostname_buf);
- continue;
- case '$':
+ break;
+ case '$':
c = my_euid == 0 ? '#' : '$';
break;
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
- case 'w':
- if (pwd_buf[0] == 0) {
- int l;
-
- getcwd(pwd_buf, PATH_MAX);
- l = strlen(home_pwd_buf);
- if (home_pwd_buf[0] != 0 &&
- strncmp(home_pwd_buf, pwd_buf, l) == 0) {
- strcpy(pwd_buf + 1, pwd_buf + l);
- pwd_buf[0] = '~';
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
+ case 'w':
+ pbuf = pwd_buf;
+ l = strlen(home_pwd_buf);
+ if (home_pwd_buf[0] != 0 &&
+ strncmp(home_pwd_buf, pbuf, l) == 0 &&
+ (pbuf[l]=='/' || pbuf[l]=='\0') &&
+ strlen(pwd_buf+l)<PATH_MAX) {
+ pbuf = buf2;
+ *pbuf = '~';
+ strcpy(pbuf+1, pwd_buf+l);
}
- }
- add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, pwd_buf);
- continue;
+ break;
#endif
- case '!':
- snprintf(buf, sizeof(buf), "%d", num_ok_lines);
- add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, buf);
- continue;
- case 'e':
- case 'E': /* \e \E = \033 */
+ case 'W':
+ pbuf = pwd_buf;
+ cp = strrchr(pbuf,'/');
+ if ( (cp != NULL) && (cp != pbuf) )
+ pbuf += (cp-pbuf)+1;
+ break;
+ case '!':
+ snprintf(pbuf = buf2, sizeof(buf2), "%d", num_ok_lines);
+ break;
+ case 'e': case 'E': /* \e \E = \033 */
c = '\033';
break;
- case 'x':
- case 'X':
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':{
- int l;
- int ho = 0;
- char *eho;
-
- if (c == 'X')
- c = 'x';
-
+ case 'x': case 'X':
for (l = 0; l < 3;) {
-
- buf[l++] = *prmt_ptr;
- buf[l] = 0;
- ho = strtol(buf, &eho, c == 'x' ? 16 : 8);
- if (ho > UCHAR_MAX || (eho - buf) < l) {
+ int h;
+ buf2[l++] = *prmt_ptr;
+ buf2[l] = 0;
+ h = strtol(buf2, &pbuf, 16);
+ if (h > UCHAR_MAX || (pbuf - buf2) < l) {
l--;
break;
}
prmt_ptr++;
}
- buf[l] = 0;
- ho = strtol(buf, 0, c == 'x' ? 16 : 8);
- c = ho == 0 ? '?' : (char) ho;
+ buf2[l] = 0;
+ c = (char)strtol(buf2, 0, 16);
+ if(c==0)
+ c = '?';
+ pbuf = buf;
break;
- }
- case '[':
- case ']':
+ case '[': case ']':
if (c == flg_not_length) {
flg_not_length = flg_not_length == '[' ? ']' : '[';
continue;
}
break;
- }
+ }
+ }
}
- buf[0] = c;
- buf[1] = 0;
- add_to_prompt(&prmt_mem_ptr, &alm, &prmt_len, buf);
+ if(pbuf == buf)
+ *pbuf = c;
+ prmt_len += strlen(pbuf);
+ prmt_mem_ptr = strcat(xrealloc(prmt_mem_ptr, prmt_len+1), pbuf);
if (flg_not_length == ']')
sub_len++;
}
+ if(pwd_buf!=(char *)unknown)
+ free(pwd_buf);
cmdedit_prompt = prmt_mem_ptr;
cmdedit_prmt_len = prmt_len - sub_len;
put_prompt();
{
if (y > 0) /* up to start y */
printf("\033[%dA", y);
- cmdedit_y = 0; /* new quasireal y */
putchar('\r');
put_prompt();
input_end(); /* rewrite */
}
-static void clean_up_and_die(int sig)
-{
- goto_new_line();
- if (sig != SIGINT)
- exit(EXIT_SUCCESS); /* cmdedit_reset_term() called in atexit */
- cmdedit_reset_term();
-}
-
static void cmdedit_setwidth(int w, int redraw_flg)
{
cmdedit_termw = cmdedit_prmt_len + 2;
}
}
-extern void cmdedit_init(void)
+static void cmdedit_init(void)
{
+ cmdedit_prmt_len = 0;
if ((handlers_sets & SET_WCHG_HANDLERS) == 0) {
/* emulate usage handler to set handler and call yours work */
win_changed(-SIGWINCH);
}
if ((handlers_sets & SET_ATEXIT) == 0) {
-#ifdef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
struct passwd *entry;
my_euid = geteuid();
}
#endif
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
-#ifndef BB_FEATURE_GETUSERNAME_AND_HOMEDIR
+#ifndef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR
my_euid = geteuid();
#endif
my_uid = getuid();
my_gid = getgid();
-#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
handlers_sets |= SET_ATEXIT;
atexit(cmdedit_reset_term); /* be sure to do this only once */
}
-
- if ((handlers_sets & SET_TERM_HANDLERS) == 0) {
- signal(SIGKILL, clean_up_and_die);
- signal(SIGINT, clean_up_and_die);
- signal(SIGQUIT, clean_up_and_die);
- signal(SIGTERM, clean_up_and_die);
- handlers_sets |= SET_TERM_HANDLERS;
- }
-
}
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
static int is_execute(const struct stat *st)
{
return FALSE;
}
-#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
static char **username_tab_completion(char *ud, int *num_matches)
{
/* Null usernames should result in all users as possible completions. */
if ( /*!userlen || */ !strncmp(ud, entry->pw_name, userlen)) {
- temp = xmalloc(3 + strlen(entry->pw_name));
- sprintf(temp, "~%s/", entry->pw_name);
+ bb_asprintf(&temp, "~%s/", entry->pw_name);
matches = xrealloc(matches, (nm + 1) * sizeof(char *));
matches[nm++] = temp;
return (matches);
}
}
-#endif /* BB_FEATURE_COMMAND_USERNAME_COMPLETION */
+#endif /* CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION */
enum {
FIND_EXE_ONLY = 0,
char **paths = path1;
int npaths;
int i;
- char found[BUFSIZ + 4 + PATH_MAX];
+ char *found;
char *pfind = strrchr(command, '/');
path1[0] = ".";
strcpy(dirbuf, command);
/* set dir only */
dirbuf[(pfind - command) + 1] = 0;
-#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
if (dirbuf[0] == '~') /* ~/... or ~user/... */
username_tab_completion(dirbuf, 0);
#endif
continue;
while ((next = readdir(dir)) != NULL) {
- const char *str_merge = "%s/%s";
char *str_found = next->d_name;
/* matched ? */
else
continue;
}
- if (paths[i][strlen(paths[i]) - 1] == '/')
- str_merge = "%s%s";
- sprintf(found, str_merge, paths[i], str_found);
+ found = concat_path_file(paths[i], str_found);
/* hmm, remover in progress? */
- if (stat(found, &st) < 0)
- continue;
+ if (stat(found, &st) < 0)
+ goto cont;
/* find with dirs ? */
if (paths[i] != dirbuf)
strcpy(found, next->d_name); /* only name */
if (S_ISDIR(st.st_mode)) {
/* name is directory */
- /* algorithmic only "/" ? */
- if (*str_found)
- strcat(found, "/");
+ str_found = found;
+ found = concat_path_file(found, "");
+ free(str_found);
str_found = add_quote_for_spec_chars(found);
} else {
/* not put found file if search only dirs for cd */
- if (type == FIND_DIR_ONLY)
- continue;
+ if (type == FIND_DIR_ONLY)
+ goto cont;
str_found = add_quote_for_spec_chars(found);
if (type == FIND_FILE_ONLY ||
- (type == FIND_EXE_ONLY && is_execute(&st) == TRUE))
+ (type == FIND_EXE_ONLY && is_execute(&st)))
strcat(str_found, " ");
}
/* Add it to the list */
matches = xrealloc(matches, (nm + 1) * sizeof(char *));
matches[nm++] = str_found;
+cont:
+ free(found);
}
closedir(dir);
}
#define QUOT (UCHAR_MAX+1)
#define collapse_pos(is, in) { \
- memcpy(int_buf+is, int_buf+in, (BUFSIZ+1-is-in)*sizeof(int)); \
- memcpy(pos_buf+is, pos_buf+in, (BUFSIZ+1-is-in)*sizeof(int)); }
+ memcpy(int_buf+(is), int_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); \
+ memcpy(pos_buf+(is), pos_buf+(in), (BUFSIZ+1-(is)-(in))*sizeof(int)); }
static int find_match(char *matchBuf, int *len_with_quotes)
{
collapse_pos(j, j + 1);
int_buf[j] |= QUOT;
i++;
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
if (matchBuf[i] == '\t') /* algorithm equivalent */
int_buf[j] = ' ' | QUOT;
#endif
}
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
else if (matchBuf[i] == '\t')
int_buf[j] = ' ';
#endif
|| (int_buf[i + 1] & ~QUOT) == '~')) {
i++;
}
- if (i) {
- collapse_pos(0, i);
- }
/* set only match and destroy quotes */
j = 0;
- for (i = 0; pos_buf[i] >= 0; i++) {
- matchBuf[i] = matchBuf[pos_buf[i]];
+ for (c = 0; pos_buf[i] >= 0; i++) {
+ matchBuf[c++] = matchBuf[pos_buf[i]];
j = pos_buf[i] + 1;
}
- matchBuf[i] = 0;
+ matchBuf[c] = 0;
/* old lenght matchBuf with quotes symbols */
*len_with_quotes = j ? j - pos_buf[0] : 0;
}
return;
}
- if (*lastWasTab == FALSE) {
+ if (! *lastWasTab) {
char *tmp;
int len_found;
/* Free up any memory already allocated */
input_tab(0);
-#ifdef BB_FEATURE_COMMAND_USERNAME_COMPLETION
+#ifdef CONFIG_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. */
* in the current working directory that matches. */
if (!matches)
matches =
- exe_n_cwd_tab_completion(matchBuf, &num_matches,
- find_type);
-
+ exe_n_cwd_tab_completion(matchBuf,
+ &num_matches, find_type);
+ /* Remove duplicate found */
+ if(matches) {
+ int i, j;
+ /* bubble */
+ for(i=0; i<(num_matches-1); i++)
+ for(j=i+1; j<num_matches; j++)
+ if(matches[i]!=0 && matches[j]!=0 &&
+ strcmp(matches[i], matches[j])==0) {
+ free(matches[j]);
+ matches[j]=0;
+ }
+ j=num_matches;
+ num_matches = 0;
+ for(i=0; i<j; i++)
+ if(matches[i]) {
+ if(!strcmp(matches[i], "./"))
+ matches[i][1]=0;
+ else if(!strcmp(matches[i], "../"))
+ matches[i][2]=0;
+ matches[num_matches++]=matches[i];
+ }
+ }
/* Did we find exactly one match? */
if (!matches || num_matches > 1) {
char *tmp1;
/* new len */
len = strlen(command_ps);
/* write out the matched command */
- input_end();
- input_backward(cursor - recalc_pos);
+ redraw(cmdedit_y, len - recalc_pos);
}
if (tmp != matches[0])
free(tmp);
}
}
}
-#endif /* BB_FEATURE_COMMAND_TAB_COMPLETION */
+#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */
-static void get_previous_history(struct history **hp, struct history *p)
+#if MAX_HISTORY >= 1
+static void get_previous_history(void)
{
- if ((*hp)->s)
- free((*hp)->s);
- (*hp)->s = xstrdup(command_ps);
- *hp = p;
+ if(command_ps[0] != 0 || history[cur_history] == 0) {
+ free(history[cur_history]);
+ history[cur_history] = xstrdup(command_ps);
+ }
+ cur_history--;
}
-static inline void get_next_history(struct history **hp)
+static int get_next_history(void)
{
- get_previous_history(hp, (*hp)->n);
+ int ch = cur_history;
+
+ if (ch < n_history) {
+ get_previous_history(); /* save the current history line */
+ return (cur_history = ch+1);
+ } else {
+ beep();
+ return 0;
+ }
}
+#endif
enum {
ESC = 27,
*
*/
-extern void cmdedit_read_input(char *prompt, char command[BUFSIZ])
-{
- int inputFd = fileno(stdin);
+int cmdedit_read_input(char *prompt, char command[BUFSIZ])
+{
int break_out = 0;
int lastWasTab = FALSE;
unsigned char c = 0;
- struct history *hp = his_end;
/* prepare before init handlers */
cmdedit_y = 0; /* quasireal y, not true work if line > xt*yt */
len = 0;
command_ps = command;
- if (new_settings.c_cc[VMIN] == 0) { /* first call */
-
- getTermSettings(inputFd, (void *) &initial_settings);
- memcpy(&new_settings, &initial_settings, sizeof(struct termios));
-
- new_settings.c_cc[VMIN] = 1;
- new_settings.c_cc[VTIME] = 0;
- /* Turn off CTRL-C, so we can trap it */
- new_settings.c_cc[VINTR] = _POSIX_VDISABLE;
- new_settings.c_lflag &= ~ICANON; /* unbuffered input */
- /* Turn off echoing */
- new_settings.c_lflag &= ~(ECHO | ECHOCTL | ECHONL);
- }
-
+ getTermSettings(0, (void *) &initial_settings);
+ memcpy(&new_settings, &initial_settings, sizeof(struct termios));
+ new_settings.c_lflag &= ~ICANON; /* unbuffered input */
+ /* Turn off echoing and CTRL-C, so we can trap it */
+ new_settings.c_lflag &= ~(ECHO | ECHONL | ISIG);
+#ifndef linux
+ /* Hmm, in linux c_cc[] not parsed if set ~ICANON */
+ new_settings.c_cc[VMIN] = 1;
+ new_settings.c_cc[VTIME] = 0;
+ /* Turn off CTRL-C, so we can trap it */
+# ifndef _POSIX_VDISABLE
+# define _POSIX_VDISABLE '\0'
+# endif
+ new_settings.c_cc[VINTR] = _POSIX_VDISABLE;
+#endif
command[0] = 0;
- setTermSettings(inputFd, (void *) &new_settings);
+ setTermSettings(0, (void *) &new_settings);
handlers_sets |= SET_RESET_TERM;
/* Now initialize things */
fflush(stdout); /* buffered out to fast */
- if (read(inputFd, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ /* if we can't read input then exit */
+ goto prepare_to_die;
switch (c) {
case '\n':
break;
case 3:
/* Control-c -- stop gathering input */
-
- /* Link into lash to reset context to 0 on ^C and such */
- shell_context = 0;
-
- /* Go to the next line */
goto_new_line();
command[0] = 0;
-
- return;
+ len = 0;
+ lastWasTab = FALSE;
+ put_prompt();
+ break;
case 4:
/* Control-d -- Delete one character, or exit
* if the len=0 and no chars to delete */
if (len == 0) {
+prepare_to_die:
+#if !defined(CONFIG_ASH)
printf("exit");
- clean_up_and_die(0);
+ goto_new_line();
+ /* cmdedit_reset_term() called in atexit */
+ exit(EXIT_SUCCESS);
+#else
+ break_out = -1; /* for control stoped jobs */
+ break;
+#endif
} else {
input_delete();
}
input_backspace();
break;
case '\t':
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
input_tab(&lastWasTab);
#endif
break;
+ case 11:
+ /* Control-k -- clear to end of line */
+ *(command + cursor) = 0;
+ len = cursor;
+ printf("\033[J");
+ break;
+ case 12:
+ /* Control-l -- clear screen */
+ printf("\033[H");
+ redraw(0, len-cursor);
+ break;
+#if MAX_HISTORY >= 1
case 14:
/* Control-n -- Get next command in history */
- if (hp && hp->n && hp->n->s) {
- get_next_history(&hp);
+ if (get_next_history())
goto rewrite_line;
- } else {
- beep();
- }
break;
case 16:
/* Control-p -- Get previous command from history */
- if (hp && hp->p) {
- get_previous_history(&hp, hp->p);
+ if (cur_history > 0) {
+ get_previous_history();
goto rewrite_line;
} else {
beep();
}
break;
+#endif
case 21:
/* Control-U -- Clear line before cursor */
if (cursor) {
redraw(cmdedit_y, len -= cursor);
}
break;
-
case ESC:{
/* escape sequence follows */
- if (read(inputFd, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
/* different vt100 emulations */
if (c == '[' || c == 'O') {
- if (read(inputFd, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
}
switch (c) {
-#ifdef BB_FEATURE_COMMAND_TAB_COMPLETION
+#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION
case '\t': /* Alt-Tab */
input_tab(&lastWasTab);
break;
#endif
+#if MAX_HISTORY >= 1
case 'A':
/* Up Arrow -- Get previous command from history */
- if (hp && hp->p) {
- get_previous_history(&hp, hp->p);
+ if (cur_history > 0) {
+ get_previous_history();
goto rewrite_line;
} else {
beep();
break;
case 'B':
/* Down Arrow -- Get next command in history */
- if (hp && hp->n && hp->n->s) {
- get_next_history(&hp);
- goto rewrite_line;
- } else {
- beep();
- }
+ if (!get_next_history())
break;
-
/* Rewrite the line with the selected history item */
- rewrite_line:
+rewrite_line:
/* change command */
- len = strlen(strcpy(command, hp->s));
+ len = strlen(strcpy(command, history[cur_history]));
/* redraw and go to end line */
redraw(cmdedit_y, 0);
break;
+#endif
case 'C':
/* Right Arrow -- Move forward one character */
input_forward();
}
if (c >= '1' && c <= '9')
do
- if (read(inputFd, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
while (c != '~');
break;
}
default: /* If it's regular input, do the normal thing */
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
/* Control-V -- Add non-printable symbol */
if (c == 22) {
- if (read(inputFd, &c, 1) < 1)
- return;
+ if (safe_read(0, &c, 1) < 1)
+ goto prepare_to_die;
if (c == 0) {
beep();
break;
}
} else
#endif
- if (!isprint(c)) /* Skip non-printable characters */
+ if (!Isprint(c)) /* Skip non-printable characters */
break;
if (len >= (BUFSIZ - 2)) /* Need to leave space for enter */
lastWasTab = FALSE;
}
- setTermSettings(inputFd, (void *) &initial_settings);
+ setTermSettings(0, (void *) &initial_settings);
handlers_sets &= ~SET_RESET_TERM;
+#if MAX_HISTORY >= 1
/* Handle command history log */
+ /* cleanup may be saved current command line */
+ free(history[MAX_HISTORY]);
+ history[MAX_HISTORY] = 0;
if (len) { /* no put empty line */
-
- struct history *h = his_end;
- char *ss;
-
- ss = xstrdup(command); /* duplicate */
-
- if (h == 0) {
- /* No previous history -- this memory is never freed */
- h = his_front = xmalloc(sizeof(struct history));
- h->n = xmalloc(sizeof(struct history));
-
- h->p = NULL;
- h->s = ss;
- h->n->p = h;
- h->n->n = NULL;
- h->n->s = NULL;
- his_end = h->n;
- history_counter++;
- } else {
- /* Add a new history command -- this memory is never freed */
- h->n = xmalloc(sizeof(struct history));
-
- h->n->p = h;
- h->n->n = NULL;
- h->n->s = NULL;
- h->s = ss;
- his_end = h->n;
-
+ int i = n_history;
/* After max history, remove the oldest command */
- if (history_counter >= MAX_HISTORY) {
-
- struct history *p = his_front->n;
-
- p->p = NULL;
- free(his_front->s);
- free(his_front);
- his_front = p;
- } else {
- history_counter++;
- }
+ if (i >= MAX_HISTORY) {
+ free(history[0]);
+ for(i = 0; i < (MAX_HISTORY-1); i++)
+ history[i] = history[i+1];
}
-#if !defined(BB_FEATURE_SH_SIMPLE_PROMPT)
+ history[i++] = xstrdup(command);
+ cur_history = i;
+ n_history = i;
+#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
num_ok_lines++;
#endif
}
+#else /* MAX_HISTORY < 1 */
+#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
+ if (len) { /* no put empty line */
+ num_ok_lines++;
+ }
+#endif
+#endif /* MAX_HISTORY >= 1 */
+ if(break_out>0) {
command[len++] = '\n'; /* set '\n' */
command[len] = 0;
-#if defined(BB_FEATURE_CLEAN_UP) && defined(BB_FEATURE_COMMAND_TAB_COMPLETION)
+ }
+#if defined(CONFIG_FEATURE_CLEAN_UP) && defined(CONFIG_FEATURE_COMMAND_TAB_COMPLETION)
input_tab(0); /* strong free */
#endif
-#if !defined(BB_FEATURE_SH_SIMPLE_PROMPT)
+#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
free(cmdedit_prompt);
#endif
- return;
+ cmdedit_reset_term();
+ return len;
}
-/* Undo the effects of cmdedit_init(). */
-extern void cmdedit_terminate(void)
-{
- cmdedit_reset_term();
- if ((handlers_sets & SET_TERM_HANDLERS) != 0) {
- signal(SIGKILL, SIG_DFL);
- signal(SIGINT, SIG_DFL);
- signal(SIGQUIT, SIG_DFL);
- signal(SIGTERM, SIG_DFL);
- signal(SIGWINCH, SIG_DFL);
- handlers_sets &= ~SET_TERM_HANDLERS;
- }
-}
-#endif /* BB_FEATURE_COMMAND_EDITING */
+#endif /* CONFIG_FEATURE_COMMAND_EDITING */
#ifdef TEST
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+const char *applet_name = "debug stuff usage";
+const char *memory_exhausted = "Memory exhausted";
+
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
#include <locale.h>
#endif
-unsigned int shell_context;
-
int main(int argc, char **argv)
{
char buff[BUFSIZ];
char *prompt =
-#if !defined(BB_FEATURE_SH_SIMPLE_PROMPT)
+#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT)
"\\[\\033[32;1m\\]\\u@\\[\\x1b[33;1m\\]\\h:\
\\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] \
\\!\\[\\e[36;1m\\]\\$ \\[\\E[0m\\]";
"% ";
#endif
-#ifdef BB_FEATURE_NONPRINTABLE_INVERSE_PUT
+#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT
setlocale(LC_ALL, "");
#endif
- shell_context = 1;
- do {
+ while(1) {
int l;
cmdedit_read_input(prompt, buff);
l = strlen(buff);
+ if(l==0)
+ break;
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;
}
projects / oweals / busybox.git / blobdiff