diff options
| -rw-r--r-- | shell/cmdedit.c | 236 |
1 files changed, 104 insertions, 132 deletions
diff --git a/shell/cmdedit.c b/shell/cmdedit.c index ceaa2e8..187aa54 100644 --- a/shell/cmdedit.c +++ b/shell/cmdedit.c @@ -12,12 +12,10 @@ * Erik Andersen <andersen@codepoet.org> (Majorly adjusted for busybox) * * This code is 'as is' with no warranty. - * - * */ /* - Usage and Known bugs: + Usage and known bugs: Terminal key codes are not extensive, and more will probably need to be added. This version was created on Debian GNU/Linux 2.x. Delete, Backspace, Home, End, and the arrow keys were tested @@ -30,57 +28,42 @@ - not true viewing if length prompt less terminal width */ - #include "busybox.h" -#include <stdio.h> -#include <errno.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> #include <sys/ioctl.h> -#include <ctype.h> -#include <signal.h> -#include <limits.h> #include "cmdedit.h" -#ifdef CONFIG_LOCALE_SUPPORT -#define Isprint(c) isprint((c)) +#if ENABLE_LOCALE_SUPPORT +#define Isprint(c) isprint(c) #else -#define Isprint(c) ( (c) >= ' ' && (c) != ((unsigned char)'\233') ) +#define Isprint(c) ((c) >= ' ' && (c) != ((unsigned char)'\233')) #endif -#ifdef TEST -/* pretect redefined for test */ -#undef CONFIG_FEATURE_COMMAND_EDITING -#undef CONFIG_FEATURE_COMMAND_TAB_COMPLETION -#undef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION -#undef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT -#undef CONFIG_FEATURE_CLEAN_UP +/* FIXME: obsolete CONFIG item? */ +#define ENABLE_FEATURE_NONPRINTABLE_INVERSE_PUT 0 + -#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 +#ifdef TEST + +#define ENABLE_FEATURE_COMMAND_EDITING 0 +#define ENABLE_FEATURE_COMMAND_TAB_COMPLETION 0 +#define ENABLE_FEATURE_COMMAND_USERNAME_COMPLETION 0 +#define ENABLE_FEATURE_NONPRINTABLE_INVERSE_PUT 0 +#define ENABLE_FEATURE_CLEAN_UP 0 #endif /* TEST */ -#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION -#include <dirent.h> -#include <sys/stat.h> -#endif -#ifdef CONFIG_FEATURE_COMMAND_EDITING +#if ENABLE_FEATURE_COMMAND_EDITING -#if defined(CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION) || defined(CONFIG_FEATURE_SH_FANCY_PROMPT) -#define CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR +#if ENABLE_FEATURE_COMMAND_USERNAME_COMPLETION || ENABLE_FEATURE_SH_FANCY_PROMPT +#define ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR 1 #endif /* Maximum length of the linked list for the command line history */ -#ifndef CONFIG_FEATURE_COMMAND_HISTORY +#if !ENABLE_FEATURE_COMMAND_HISTORY #define MAX_HISTORY 15 #else #define MAX_HISTORY (CONFIG_FEATURE_COMMAND_HISTORY + 0) @@ -94,7 +77,7 @@ static int n_history; static int cur_history; #endif -#include <termios.h> +//#include <termios.h> #define setTermSettings(fd,argp) tcsetattr(fd,TCSANOW,argp) #define getTermSettings(fd,argp) tcgetattr(fd, argp); @@ -119,37 +102,33 @@ 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 -#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT - const -#endif -char *cmdedit_prompt; /* --- "" - - "" - -"- --""-- --""--- */ +static int cursor; /* required globals for signal handler */ +static int len; /* --- "" - - "" -- -"- --""-- --""--- */ +static char *command_ps; /* --- "" - - "" -- -"- --""-- --""--- */ +static SKIP_FEATURE_SH_FANCY_PROMPT(const) char *cmdedit_prompt; /* -- */ -#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR +#if ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR static char *user_buf = ""; static char *home_pwd_buf = ""; static int my_euid; #endif -#ifdef CONFIG_FEATURE_SH_FANCY_PROMPT +#if ENABLE_FEATURE_SH_FANCY_PROMPT static char *hostname_buf; static int num_ok_lines = 1; #endif -#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION +#if ENABLE_FEATURE_COMMAND_TAB_COMPLETION -#ifndef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR +#if !ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR static int my_euid; #endif static int my_uid; static int my_gid; -#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */ +#endif /* FEATURE_COMMAND_TAB_COMPLETION */ static void cmdedit_setwidth(int w, int redraw_flg); @@ -163,7 +142,7 @@ static void win_changed(int nsig) get_terminal_width_height(0, &width, NULL); cmdedit_setwidth(width, nsig == SIGWINCH); } - /* Unix not all standart in recall signal */ + /* Unix not all standard in recall signal */ if (nsig == -SIGWINCH) /* save previous handler */ previous_SIGWINCH_handler = signal(SIGWINCH, win_changed); @@ -198,7 +177,7 @@ static void cmdedit_set_out_char(int next_char) if (c == 0) c = ' '; /* destroy end char? */ -#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT +#if ENABLE_FEATURE_NONPRINTABLE_INVERSE_PUT if (!Isprint(c)) { /* Inverse put non-printable characters */ if (c >= 128) c -= 128; @@ -290,7 +269,7 @@ static void put_prompt(void) cmdedit_y = 0; /* new quasireal y */ } -#ifndef CONFIG_FEATURE_SH_FANCY_PROMPT +#if !ENABLE_FEATURE_SH_FANCY_PROMPT static void parse_prompt(const char *prmt_ptr) { cmdedit_prompt = prmt_ptr; @@ -323,12 +302,12 @@ static void parse_prompt(const char *prmt_ptr) int l; c = bb_process_escape_sequence(&prmt_ptr); - if(prmt_ptr==cp) { + if (prmt_ptr==cp) { if (*cp == 0) break; c = *prmt_ptr++; switch (c) { -#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR +#if ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR case 'u': pbuf = user_buf; break; @@ -351,7 +330,7 @@ static void parse_prompt(const char *prmt_ptr) case '$': c = my_euid == 0 ? '#' : '$'; break; -#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR +#if ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR case 'w': pbuf = pwd_buf; l = strlen(home_pwd_buf); @@ -391,7 +370,7 @@ static void parse_prompt(const char *prmt_ptr) } buf2[l] = 0; c = (char)strtol(buf2, 0, 16); - if(c==0) + if (c==0) c = '?'; pbuf = buf; break; @@ -404,7 +383,7 @@ static void parse_prompt(const char *prmt_ptr) } } } - if(pbuf == buf) + if (pbuf == buf) *pbuf = c; cur_prmt_len = strlen(pbuf); prmt_len += cur_prmt_len; @@ -412,7 +391,7 @@ static void parse_prompt(const char *prmt_ptr) cmdedit_prmt_len += cur_prmt_len; prmt_mem_ptr = strcat(xrealloc(prmt_mem_ptr, prmt_len+1), pbuf); } - if(pwd_buf!=(char *)bb_msg_unknown) + if (pwd_buf!=(char *)bb_msg_unknown) free(pwd_buf); cmdedit_prompt = prmt_mem_ptr; put_prompt(); @@ -432,7 +411,7 @@ static void redraw(int y, int back_cursor) input_backward(back_cursor); } -#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI +#if ENABLE_FEATURE_COMMAND_EDITING_VI #define DELBUFSIZ 128 static char *delbuf; /* a (malloced) place to store deleted characters */ static char *delp; @@ -448,7 +427,7 @@ static void input_delete(int save) if (j == len) return; -#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI +#if ENABLE_FEATURE_COMMAND_EDITING_VI if (save) { if (newdelflag) { if (!delbuf) @@ -469,7 +448,7 @@ static void input_delete(int save) input_backward(cursor - j); /* back to old pos cursor */ } -#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI +#if ENABLE_FEATURE_COMMAND_EDITING_VI static void put(void) { int ocursor, j = delp - delbuf; @@ -532,7 +511,7 @@ static void cmdedit_init(void) } if ((handlers_sets & SET_ATEXIT) == 0) { -#ifdef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR +#if ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR struct passwd *entry; my_euid = geteuid(); @@ -543,20 +522,20 @@ static void cmdedit_init(void) } #endif -#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION +#if ENABLE_FEATURE_COMMAND_TAB_COMPLETION -#ifndef CONFIG_FEATURE_GETUSERNAME_AND_HOMEDIR +#if !ENABLE_FEATURE_GETUSERNAME_AND_HOMEDIR my_euid = geteuid(); #endif my_uid = getuid(); my_gid = getgid(); -#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */ +#endif /* FEATURE_COMMAND_TAB_COMPLETION */ handlers_sets |= SET_ATEXIT; atexit(cmdedit_reset_term); /* be sure to do this only once */ } } -#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION +#if ENABLE_FEATURE_COMMAND_TAB_COMPLETION static char **matches; static int num_matches; @@ -583,7 +562,7 @@ static int is_execute(const struct stat *st) return FALSE; } -#ifdef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION +#if ENABLE_FEATURE_COMMAND_USERNAME_COMPLETION static void username_tab_completion(char *ud, char *with_shash_flg) { @@ -633,7 +612,7 @@ static void username_tab_completion(char *ud, char *with_shash_flg) endpwent(); } } -#endif /* CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION */ +#endif /* FEATURE_COMMAND_USERNAME_COMPLETION */ enum { FIND_EXE_ONLY = 0, @@ -641,7 +620,7 @@ enum { FIND_FILE_ONLY = 2, }; -#ifdef CONFIG_ASH +#if ENABLE_ASH const char *cmdedit_path_lookup; #else #define cmdedit_path_lookup getenv("PATH") @@ -703,7 +682,7 @@ static char *add_quote_for_spec_chars(char *found, int add) s[l++] = '\\'; s[l++] = *found++; } - if(add) + if (add) s[l++] = (char)add; s[l] = 0; return s; @@ -734,7 +713,7 @@ static void exe_n_cwd_tab_completion(char *command, int type) strcpy(dirbuf, command); /* set dir only */ dirbuf[(pfind - command) + 1] = 0; -#ifdef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION +#if ENABLE_FEATURE_COMMAND_USERNAME_COMPLETION if (dirbuf[0] == '~') /* ~/... or ~user/... */ username_tab_completion(dirbuf, dirbuf); #endif @@ -777,7 +756,7 @@ static void exe_n_cwd_tab_completion(char *command, int type) char *e = found + strlen(found) - 1; add_chr = '/'; - if(*e == '/') + if (*e == '/') *e = '\0'; } else { /* not put found file if search only dirs for cd */ @@ -832,12 +811,12 @@ static int find_match(char *matchBuf, int *len_with_quotes) collapse_pos(j, j + 1); int_buf[j] |= QUOT; i++; -#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT +#if ENABLE_FEATURE_NONPRINTABLE_INVERSE_PUT if (matchBuf[i] == '\t') /* algorithm equivalent */ int_buf[j] = ' ' | QUOT; #endif } -#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT +#if ENABLE_FEATURE_NONPRINTABLE_INVERSE_PUT else if (matchBuf[i] == '\t') int_buf[j] = ' '; #endif @@ -986,7 +965,7 @@ static void showfiles(void) /* find the longest file name- use that as the column width */ for (row = 0; row < nrows; row++) { l = strlen(matches[row]); - if(add_char_to_match[row]) + if (add_char_to_match[row]) l++; if (column_width < l) column_width = l; @@ -996,7 +975,7 @@ static void showfiles(void) if (ncols > 1) { nrows /= ncols; - if(nfiles % ncols) + if (nfiles % ncols) nrows++; /* round up fractionals */ } else { ncols = 1; @@ -1012,7 +991,7 @@ static void showfiles(void) acol = str_add_chr[0] ? column_width - 1 : column_width; printf("%s%s", matches[n], str_add_chr); l = strlen(matches[n]); - while(l < acol) { + while (l < acol) { putchar(' '); l++; } @@ -1022,7 +1001,6 @@ static void showfiles(void) } } - static void input_tab(int *lastWasTab) { /* Do TAB completion */ @@ -1057,7 +1035,7 @@ static void input_tab(int *lastWasTab) /* Free up any memory already allocated */ input_tab(0); -#ifdef CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION +#if ENABLE_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. */ @@ -1069,34 +1047,30 @@ static void input_tab(int *lastWasTab) * in the current working directory that matches. */ exe_n_cwd_tab_completion(matchBuf, find_type); /* Remove duplicate found and sort */ - if(matches) { - int i, j, n, srt; - /* bubble */ - n = num_matches; - for(i=0; i<(n-1); i++) { - for(j=i+1; j<n; j++) { - if(matches[i]!=NULL && matches[j]!=NULL) { - srt = strcmp(matches[i], matches[j]); - if(srt == 0) { - free(matches[j]); - matches[j]=0; - } else if(srt > 0) { - tmp1 = matches[i]; - matches[i] = matches[j]; - matches[j] = tmp1; - srt = add_char_to_match[i]; - add_char_to_match[i] = add_char_to_match[j]; - add_char_to_match[j] = srt; - } + if (matches) { + int i, n; + /* strcmp is int(*f)(const char*, const char*) */ + /* qsort wants int(*f)(const void*, const void*) */ + /* We cheat here :) */ + qsort(matches, num_matches, sizeof(char*), (void*)strcmp); + i = 0; + while (i < num_matches - 1) { + n = i + 1; + if (matches[i] && matches[n]) { + while (n < num_matches + && !strcmp(matches[i], matches[n])) { + free(matches[n]); + matches[n] = 0; + n++; } } + i = n; } - j = n; n = 0; - for(i=0; i<j; i++) - if(matches[i]) { - matches[n]=matches[i]; - add_char_to_match[n]=add_char_to_match[i]; + for(i = 0; i < num_matches; i++) + if (matches[i]) { + matches[n] = matches[i]; + add_char_to_match[n] = add_char_to_match[i]; n++; } num_matches = n; @@ -1162,12 +1136,12 @@ static void input_tab(int *lastWasTab) } } } -#endif /* CONFIG_FEATURE_COMMAND_TAB_COMPLETION */ +#endif /* FEATURE_COMMAND_TAB_COMPLETION */ #if MAX_HISTORY > 0 static void get_previous_history(void) { - if(command_ps[0] != 0 || history[cur_history] == 0) { + if (command_ps[0] != 0 || history[cur_history] == 0) { free(history[cur_history]); history[cur_history] = xstrdup(command_ps); } @@ -1188,7 +1162,7 @@ static int get_next_history(void) } } -#ifdef CONFIG_FEATURE_COMMAND_SAVEHISTORY +#if ENABLE_FEATURE_COMMAND_SAVEHISTORY void load_history ( const char *fromfile ) { FILE *fp; @@ -1207,12 +1181,12 @@ void load_history ( const char *fromfile ) char * hl = xmalloc_getline(fp); int l; - if(!hl) + if (!hl) break; l = strlen(hl); - if(l >= BUFSIZ) + if (l >= BUFSIZ) hl[BUFSIZ-1] = 0; - if(l == 0 || hl[0] == ' ') { + if (l == 0 || hl[0] == ' ') { free(hl); continue; } @@ -1264,7 +1238,7 @@ enum { * */ -#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI +#if ENABLE_FEATURE_COMMAND_EDITING_VI static int vi_mode; void setvimode ( int viflag ) @@ -1392,7 +1366,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) int lastWasTab = FALSE; unsigned char c; unsigned int ic; -#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI +#if ENABLE_FEATURE_COMMAND_EDITING_VI unsigned int prevc; int vi_cmdmode = 0; #endif @@ -1434,7 +1408,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) ic = c; -#ifdef CONFIG_FEATURE_COMMAND_EDITING_VI +#if ENABLE_FEATURE_COMMAND_EDITING_VI newdelflag = 1; if (vi_cmdmode) ic |= vbit; @@ -1465,7 +1439,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) vi_case( case CNTRL('C')|vbit: ) /* Control-c -- stop gathering input */ goto_new_line(); -#ifndef CONFIG_ASH +#if !ENABLE_ASH command[0] = 0; len = 0; lastWasTab = FALSE; @@ -1481,7 +1455,7 @@ int cmdedit_read_input(char *prompt, char command[BUFSIZ]) if (len == 0) { errno = 0; prepare_to_die: -#if !defined(CONFIG_ASH) +#if !ENABLE_ASH printf("exit"); goto_new_line(); /* cmdedit_reset_term() called in atexit */ @@ -1512,7 +1486,7 @@ prepare_to_die: input_backspace(); break; case '\t': -#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION +#if ENABLE_FEATURE_COMMAND_TAB_COMPLETION input_tab(&lastWasTab); #endif break; @@ -1629,7 +1603,7 @@ prepare_to_die: goto clear_to_eol; break; } - switch(c) { + switch (c) { case 'w': case 'W': case 'e': @@ -1692,7 +1666,7 @@ prepare_to_die: putchar('\b'); } break; -#endif /* CONFIG_FEATURE_COMMAND_EDITING_VI */ +#endif /* FEATURE_COMMAND_EDITING_VI */ case ESC: @@ -1719,11 +1693,11 @@ prepare_to_die: if (safe_read(0, &dummy, 1) < 1) goto prepare_to_die; - if(dummy != '~') + if (dummy != '~') c = 0; } switch (c) { -#ifdef CONFIG_FEATURE_COMMAND_TAB_COMPLETION +#if ENABLE_FEATURE_COMMAND_TAB_COMPLETION case '\t': /* Alt-Tab */ input_tab(&lastWasTab); @@ -1784,7 +1758,7 @@ rewrite_line: break; default: /* If it's regular input, do the normal thing */ -#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT +#if ENABLE_FEATURE_NONPRINTABLE_INVERSE_PUT /* Control-V -- Add non-printable symbol */ if (c == CNTRL('V')) { if (safe_read(0, &c, 1) < 1) @@ -1854,12 +1828,12 @@ rewrite_line: history[i++] = xstrdup(command); cur_history = i; n_history = i; -#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT) +#if ENABLE_FEATURE_SH_FANCY_PROMPT num_ok_lines++; #endif } #else /* MAX_HISTORY == 0 */ -#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT) +#if ENABLE_FEATURE_SH_FANCY_PROMPT if (len > 0) { /* no put empty line */ num_ok_lines++; } @@ -1869,26 +1843,24 @@ rewrite_line: command[len++] = '\n'; /* set '\n' */ command[len] = 0; } -#if defined(CONFIG_FEATURE_CLEAN_UP) && defined(CONFIG_FEATURE_COMMAND_TAB_COMPLETION) +#if ENABLE_FEATURE_CLEAN_UP && ENABLE_FEATURE_COMMAND_TAB_COMPLETION input_tab(0); /* strong free */ #endif -#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT) +#if ENABLE_FEATURE_SH_FANCY_PROMPT free(cmdedit_prompt); #endif cmdedit_reset_term(); return len; } - - -#endif /* CONFIG_FEATURE_COMMAND_EDITING */ +#endif /* FEATURE_COMMAND_EDITING */ #ifdef TEST const char *applet_name = "debug stuff usage"; -#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT +#if ENABLE_FEATURE_NONPRINTABLE_INVERSE_PUT #include <locale.h> #endif @@ -1896,7 +1868,7 @@ int main(int argc, char **argv) { char buff[BUFSIZ]; char *prompt = -#if defined(CONFIG_FEATURE_SH_FANCY_PROMPT) +#if ENABLE_FEATURE_SH_FANCY_PROMPT "\\[\\033[32;1m\\]\\u@\\[\\x1b[33;1m\\]\\h:\ \\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] \ \\!\\[\\e[36;1m\\]\\$ \\[\\E[0m\\]"; @@ -1904,13 +1876,13 @@ int main(int argc, char **argv) "% "; #endif -#ifdef CONFIG_FEATURE_NONPRINTABLE_INVERSE_PUT +#if ENABLE_FEATURE_NONPRINTABLE_INVERSE_PUT setlocale(LC_ALL, ""); #endif - while(1) { + while (1) { int l; l = cmdedit_read_input(prompt, buff); - if(l > 0 && buff[l-1] == '\n') { + if (l > 0 && buff[l-1] == '\n') { buff[l-1] = 0; printf("*** cmdedit_read_input() returned line =%s=\n", buff); } else { |