| /* linenoise.c -- guerrilla line editing library against the idea that a |
| * line editing lib needs to be 20,000 lines of C code. |
| * |
| * You can find the latest source code at: |
| * |
| * http://github.com/antirez/linenoise |
| * |
| * Does a number of crazy assumptions that happen to be true in 99.9999% of |
| * the 2010 UNIX computers around. |
| * |
| * ------------------------------------------------------------------------ |
| * |
| * Copyright (c) 2010-2013, Salvatore Sanfilippo <antirez at gmail dot com> |
| * Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com> |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * ------------------------------------------------------------------------ |
| * |
| * References: |
| * - http://invisible-island.net/xterm/ctlseqs/ctlseqs.html |
| * - http://www.3waylabs.com/nw/WWW/products/wizcon/vt220.html |
| * |
| * Todo list: |
| * - Filter bogus Ctrl+<char> combinations. |
| * - Win32 support |
| * |
| * Bloat: |
| * - History search like Ctrl+r in readline? |
| * |
| * List of escape sequences used by this program, we do everything just |
| * with three sequences. In order to be so cheap we may have some |
| * flickering effect with some slow terminal, but the lesser sequences |
| * the more compatible. |
| * |
| * CHA (Cursor Horizontal Absolute) |
| * Sequence: ESC [ n G |
| * Effect: moves cursor to column n |
| * |
| * EL (Erase Line) |
| * Sequence: ESC [ n K |
| * Effect: if n is 0 or missing, clear from cursor to end of line |
| * Effect: if n is 1, clear from beginning of line to cursor |
| * Effect: if n is 2, clear entire line |
| * |
| * CUF (CUrsor Forward) |
| * Sequence: ESC [ n C |
| * Effect: moves cursor forward of n chars |
| * |
| * When multi line mode is enabled, we also use an additional escape |
| * sequence. However multi line editing is disabled by default. |
| * |
| * CUU (Cursor Up) |
| * Sequence: ESC [ n A |
| * Effect: moves cursor up of n chars. |
| * |
| * CUD (Cursor Down) |
| * Sequence: ESC [ n B |
| * Effect: moves cursor down of n chars. |
| * |
| * The following are used to clear the screen: ESC [ H ESC [ 2 J |
| * This is actually composed of two sequences: |
| * |
| * cursorhome |
| * Sequence: ESC [ H |
| * Effect: moves the cursor to upper left corner |
| * |
| * ED2 (Clear entire screen) |
| * Sequence: ESC [ 2 J |
| * Effect: clear the whole screen |
| * |
| */ |
| #include <bcmos_system.h> |
| #ifndef LINENOISE_DISABLE_TERMIOS |
| #include <termios.h> |
| #endif |
| #ifndef LINENOISE_DISABLE_IOCTL |
| #include <sys/ioctl.h> |
| #endif |
| #include "linenoise.h" |
| |
| #ifndef STDIN_FILENO |
| #define STDIN_FILENO 0 |
| #endif |
| |
| #ifndef STDOUT_FILENO |
| #define STDOUT_FILENO 1 |
| #endif |
| |
| #define LINENOISE_DEFAULT_HISTORY_MAX_LEN 100 |
| #define LINENOISE_MAX_LINE 4096 |
| |
| /* The linenoiseState structure represents the state during line editing. |
| * We pass this state to functions implementing specific editing |
| * functionalities. */ |
| struct linenoiseState { |
| long ifd; /* Terminal stdin file descriptor. */ |
| char *buf; /* Edited line buffer. */ |
| int buflen; /* Edited line buffer size. */ |
| const char *prompt; /* Prompt to display. */ |
| int plen; /* Prompt length. */ |
| int pos; /* Current cursor position. */ |
| int oldpos; /* Previous refresh cursor position. */ |
| int len; /* Current edited line length. */ |
| int cols; /* Number of columns in terminal. */ |
| int maxrows; /* Maximum num of rows used so far (multiline mode) */ |
| int history_index; /* The history index we are currently editing. */ |
| }; |
| |
| /* Session */ |
| struct linenoiseSession { |
| struct linenoiseSession *next; |
| struct linenoiseState state; |
| linenoiseSessionIO io; |
| linenoiseCompletionCallback *completionCallback; |
| char *read_ahead_buf; |
| int read_ahead_pos; |
| int history_max_len; |
| int history_len; |
| char **history; |
| int mlmode; /* Multi line mode. Default is single line. */ |
| int rawmode; /* For atexit() function to check if restore is needed*/ |
| #ifndef LINENOISE_DISABLE_TERMIOS |
| struct termios orig_termios; /* In order to restore at exit.*/ |
| #endif |
| int dumb_terminal; |
| int forced_dumb; |
| int ncolreqs; /* Outstandige get columns requests */ |
| void *session_data; |
| }; |
| |
| enum KEY_ACTION{ |
| KEY_NULL = 0, /* NULL */ |
| CTRL_A = 1, /* Ctrl+a */ |
| CTRL_B = 2, /* Ctrl-b */ |
| CTRL_C = 3, /* Ctrl-c */ |
| CTRL_D = 4, /* Ctrl-d */ |
| CTRL_E = 5, /* Ctrl-e */ |
| CTRL_F = 6, /* Ctrl-f */ |
| CTRL_H = 8, /* Ctrl-h */ |
| KEY_TAB = 9, /* Tab */ |
| CTRL_K = 11, /* Ctrl+k */ |
| CTRL_L = 12, /* Ctrl+l */ |
| KEY_LF = 10, /* Enter: \n */ |
| KEY_CR = 13, /* Enter: \r */ |
| CTRL_N = 14, /* Ctrl-n */ |
| CTRL_P = 16, /* Ctrl-p */ |
| CTRL_T = 20, /* Ctrl-t */ |
| CTRL_U = 21, /* Ctrl+u */ |
| CTRL_W = 23, /* Ctrl+w */ |
| ESC = 27, /* Escape */ |
| BACKSPACE = 127 /* Backspace */ |
| }; |
| |
| static void refreshLine(linenoiseSession *session); |
| static void freeHistory(linenoiseSession *session); |
| static int linenoiseRaw(linenoiseSession *session, char *buf, size_t buflen, const char *prompt); |
| |
| /* Debugging macro. */ |
| /* #define LINENOISE_DEBUG_MODE */ |
| |
| #ifdef LINENOISE_DEBUG_MODE |
| #define lndebug(fmt, args...) \ |
| do {\ |
| bcmos_printf("%s:%d " fmt, __FUNCTION__, __LINE__, ##args);\ |
| } while(0) |
| #else |
| #define lndebug(fmt, ...) |
| #endif |
| |
| |
| /* Session list. ToDo: protect update */ |
| static linenoiseSession *sessions; |
| |
| /* ======================= Low level terminal handling ====================== */ |
| |
| /* Set if to use or not the multi line mode. */ |
| void linenoiseSetMultiLine(linenoiseSession *session, int ml) { |
| session->mlmode = ml; |
| } |
| |
| int linenoiseGetMultiLine(linenoiseSession *session) { |
| return session->mlmode; |
| } |
| |
| int linenoiseGetDumbTerminal(linenoiseSession *session) { |
| return session->dumb_terminal; |
| } |
| |
| /* Raw mode: 1960 magic shit. */ |
| static int enableRawMode(linenoiseSession *session) { |
| #ifndef LINENOISE_DISABLE_TERMIOS |
| struct termios raw; |
| |
| if (tcgetattr(session->state.ifd, &session->orig_termios) == -1) goto fatal; |
| |
| raw = session->orig_termios; /* modify the original mode */ |
| /* input modes: no break, no CR to NL, no parity check, no strip char, |
| * no start/stop output control. */ |
| raw.c_iflag &= ~(BRKINT | IGNBRK | ICRNL | INPCK | ISTRIP | IXON | IXOFF); |
| |
| /* output modes - disable post processing */ |
| /* raw.c_oflag &= ~(OPOST); */ |
| |
| /* control modes - set 8 bit chars */ |
| raw.c_cflag |= (CS8 /* | ISIG */); |
| |
| /* local modes - echoing off, canonical off, no extended functions, |
| * no signal chars (^Z,^C) */ |
| raw.c_lflag &= ~(ECHO | ICANON | IEXTEN); |
| /* control chars - set return condition: min number of bytes and timer. |
| * We want read to return every single byte, without timeout. */ |
| raw.c_cc[VMIN] = 1; raw.c_cc[VTIME] = 0; /* 1 byte, no timer */ |
| |
| /* put terminal in raw mode after flushing */ |
| if (tcsetattr(session->state.ifd, TCSAFLUSH, &raw) < 0) goto fatal; |
| session->rawmode = 1; |
| return 0; |
| |
| fatal: |
| errno = ENOTTY; |
| return -1; |
| #else |
| session->rawmode = 1; |
| return 0; /* assume raw mode */ |
| #endif |
| } |
| |
| static void disableRawMode(linenoiseSession *session) { |
| /* Don't even check the return value as it's too late. */ |
| #ifndef LINENOISE_DISABLE_TERMIOS |
| if (session->rawmode && tcsetattr(session->state.ifd,TCSAFLUSH,&session->orig_termios) != -1) |
| session->rawmode = 0; |
| #endif |
| } |
| |
| |
| /* write ESC sequence */ |
| static int writeEscSequence(linenoiseSession *session, const char *seq, int seq_len) |
| { |
| int n; |
| if (!seq_len) |
| seq_len = strlen(seq); |
| n = session->io.write(session->io.fd_out, seq, seq_len); |
| return n; |
| } |
| |
| |
| /* Try to get the number of columns in the current terminal, or assume 80 |
| * if it fails. */ |
| static int getColumnsRequest(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| #ifndef LINENOISE_DISABLE_IOCTL |
| struct winsize ws; |
| if (ioctl(1, TIOCGWINSZ, &ws) == 0 && ws.ws_col != 0) |
| { |
| l->cols = ws.ws_col; |
| } |
| #endif |
| { |
| /* 4 sequences: store position, go to right margin, request position, restore position. */ |
| if (writeEscSequence(session, "\x1b" "7" "\x1b" "[999C" "\x1b" "[6n" "\x1b" "8", 14) != 14) |
| goto failed; |
| ++session->ncolreqs; |
| } |
| return l->cols; |
| |
| failed: |
| lndebug("getColumnsRequest failed: cols=80\n"); |
| return 80; |
| } |
| |
| /* Clear the screen. Used to handle ctrl+l */ |
| void linenoiseClearScreen(linenoiseSession *session) { |
| #ifndef LINENOISE_DEBUG_MODE |
| if (writeEscSequence(session, "\x1b[H\x1b[2J", 7) <= 0) { |
| /* nothing to do, just to avoid warning. */ |
| } |
| #endif |
| } |
| |
| /* Beep, used for completion when there is nothing to complete or when all |
| * the choices were already shown. */ |
| static void linenoiseBeep(void) { |
| fprintf(stderr, "\x7"); |
| fflush(stderr); |
| } |
| |
| static int linenoiseDefaultReadChar(long fd_in, char *c) |
| { |
| int n; |
| do { |
| n = read(fd_in, c, 1); |
| } while(!n || (n==1 && ! *c)); |
| return n; |
| } |
| |
| static int linenoiseDefaultWrite(long fd_out, const char *buf, size_t len) |
| { |
| return write(fd_out, buf, len); |
| } |
| |
| int linenoiseSessionOpen(const linenoiseSessionIO *io, void *session_data, linenoiseSession **session) |
| { |
| linenoiseSession *s; |
| if (!io || !session) |
| return -1; |
| s = bcmos_calloc(sizeof(*s)); |
| if (!s) |
| return -1; |
| s->history_max_len = LINENOISE_DEFAULT_HISTORY_MAX_LEN; |
| s->io = *io; |
| s->dumb_terminal = io->dumb_terminal; |
| s->session_data = session_data; |
| *session = s; |
| s->next = sessions; |
| sessions = s; |
| |
| if (!s->io.read_char) |
| { |
| s->io.read_char = linenoiseDefaultReadChar; |
| if (!s->io.fd_in) |
| s->io.fd_in = STDIN_FILENO; |
| } |
| if (!s->io.write) |
| { |
| s->io.write = linenoiseDefaultWrite; |
| if (!s->io.fd_out) |
| s->io.fd_out = STDOUT_FILENO; |
| } |
| |
| /* IT: temp */ |
| s->mlmode = 1; |
| s->state.ifd = STDIN_FILENO; |
| |
| return 0; |
| } |
| |
| |
| void linenoiseSessionClose(linenoiseSession *session) |
| { |
| linenoiseSession *s = sessions, *prev=NULL; |
| while (s && s != session) |
| { |
| prev = s; |
| s = s->next; |
| } |
| if (s) |
| { |
| if (prev) |
| prev->next = s->next; |
| else |
| sessions = s->next; |
| disableRawMode(s); |
| freeHistory(s); |
| if (s->read_ahead_buf) |
| bcmos_free(s->read_ahead_buf); |
| bcmos_free(s); |
| } |
| } |
| |
| void *linenoiseSessionData(linenoiseSession *session) { |
| return session->session_data; |
| } |
| |
| |
| void linenoiseSetDumbTerminal(linenoiseSession *session, int dumb) { |
| if (!session->io.dumb_terminal) |
| { |
| session->dumb_terminal = dumb; |
| session->forced_dumb = dumb; |
| } |
| } |
| |
| /* ============================== Completion ================================ */ |
| |
| /* This is an helper function for linenoiseEdit() and is called when the |
| * user types the <tab> key in order to complete the string currently in the |
| * input. It can call linenoiseSetBuffer in order to replace the current edit buffer |
| */ |
| static void completeLine(linenoiseSession *session) { |
| struct linenoiseState *ls = &session->state; |
| |
| if (!session->completionCallback(session, ls->buf, ls->pos)) |
| { |
| linenoiseBeep(); |
| } |
| refreshLine(session); |
| } |
| |
| /* Register a callback function to be called for tab-completion. */ |
| void linenoiseSetCompletionCallback(linenoiseSession *session, linenoiseCompletionCallback *fn) { |
| session->completionCallback = fn; |
| } |
| |
| /* This function is used by the callback function registered by the user |
| * in order to add completion options given the input string when the |
| * user typed <tab>. See the example.c source code for a very easy to |
| * understand example. */ |
| void linenoiseSetBuffer(linenoiseSession *session, const char *buf, int pos) |
| { |
| if (!session->state.buf) |
| return; |
| strncpy(session->state.buf, buf, session->state.buflen - 1); |
| session->state.buf[session->state.buflen - 1] = 0; |
| session->state.len = strlen(session->state.buf); |
| session->state.pos = (pos >= 0 && pos < session->state.len) ? pos : session->state.len; |
| refreshLine(session); |
| } |
| |
| /* =========================== Line editing ================================= */ |
| |
| /* We define a very simple "append buffer" structure, that is an heap |
| * allocated string where we can append to. This is useful in order to |
| * write all the escape sequences in a buffer and flush them to the standard |
| * output in a single call, to avoid flickering effects. */ |
| struct abuf { |
| char *b; |
| int len; |
| }; |
| |
| static void abInit(struct abuf *ab) { |
| ab->b = NULL; |
| ab->len = 0; |
| } |
| |
| static void abAppend(struct abuf *ab, const char *s, int len) { |
| char *new = bcmos_alloc(ab->len+len); |
| if (new == NULL) return; |
| memcpy(new,ab->b,ab->len); |
| memcpy(new+ab->len,s,len); |
| bcmos_free(ab->b); |
| ab->b = new; |
| ab->len += len; |
| } |
| |
| static void abFree(struct abuf *ab) { |
| bcmos_free(ab->b); |
| } |
| |
| /* Single line low level cursor refresh. |
| */ |
| static void refreshCursorSingleLine(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| char seq[64]; |
| size_t plen = strlen(l->prompt); |
| char *buf = l->buf; |
| size_t len = l->len; |
| size_t pos = l->pos; |
| struct abuf ab; |
| |
| while((plen+pos) >= l->cols) { |
| buf++; |
| len--; |
| pos--; |
| } |
| while (plen+len > l->cols) { |
| len--; |
| } |
| |
| abInit(&ab); |
| /* Cursor to left edge */ |
| snprintf(seq,64,"\x1b[999D"); |
| abAppend(&ab,seq,strlen(seq)); |
| if (pos+plen) |
| { |
| snprintf(seq,64,"\x1b[%dC", (int)(pos+plen)); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| if (writeEscSequence(session, ab.b, ab.len) == -1) {} /* Can't recover from write error. */ |
| abFree(&ab); |
| } |
| |
| /* Single line low level line refresh. |
| * |
| * Rewrite the currently edited line accordingly to the buffer content, |
| * cursor position, and number of columns of the terminal. */ |
| static void refreshSingleLine(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| char seq[64]; |
| size_t plen = strlen(l->prompt); |
| char *buf = l->buf; |
| size_t len = l->len; |
| size_t pos = l->pos; |
| struct abuf ab; |
| |
| while((plen+pos) >= l->cols) { |
| buf++; |
| len--; |
| pos--; |
| } |
| while (plen+len > l->cols) { |
| len--; |
| } |
| |
| abInit(&ab); |
| /* Cursor to left edge */ |
| snprintf(seq,64,"\x1b[999D"); |
| abAppend(&ab,seq,strlen(seq)); |
| /* Write the prompt and the current buffer content */ |
| abAppend(&ab,l->prompt,strlen(l->prompt)); |
| abAppend(&ab,buf,len); |
| /* Erase to right */ |
| snprintf(seq,64,"\x1b[0K"); |
| abAppend(&ab,seq,strlen(seq)); |
| /* Move cursor to original position. */ |
| snprintf(seq,64,"\x1b[999D"); |
| abAppend(&ab,seq,strlen(seq)); |
| if (pos+plen) |
| { |
| snprintf(seq,64,"\x1b[%dC", (int)(pos+plen)); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| if (writeEscSequence(session, ab.b, ab.len) == -1) {} /* Can't recover from write error. */ |
| abFree(&ab); |
| } |
| |
| /* Multi line low level cursor position refresh. |
| * |
| * Rewrite the currently edited line accordingly to the buffer content, |
| * cursor position, and number of columns of the terminal. */ |
| static void refreshCursorMultiLine(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| char seq[64]; |
| int plen = strlen(l->prompt); |
| int old_rpos = (plen+l->oldpos+l->cols)/l->cols; /* cursor relative row. */ |
| int new_rpos = (plen+l->pos+l->cols)/l->cols; /* cursor relative row. */ |
| int old_cpos = (plen+l->oldpos)%l->cols; /* cursor relative row. */ |
| int new_cpos = (plen+l->pos)%l->cols; /* cursor relative row. */ |
| struct abuf ab; |
| |
| /* Update maxrows if needed. */ |
| if (new_rpos > (int)l->maxrows) new_rpos = l->maxrows; |
| |
| lndebug("oldp=%d newp=%d or=%d nr=%d oc=%d nc=%d\n\n", l->oldpos, l->pos, old_rpos, new_rpos, old_cpos, new_cpos); |
| |
| abInit(&ab); |
| |
| /* Handle row */ |
| if (new_rpos > old_rpos) |
| { |
| snprintf(seq,64,"\x1b[%dB", new_rpos - old_rpos); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| else if (new_rpos < old_rpos) |
| { |
| snprintf(seq,64,"\x1b[%dA", old_rpos - new_rpos); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| |
| /* Handle column */ |
| if (new_cpos > old_cpos) |
| { |
| snprintf(seq,64,"\x1b[%dC", new_cpos - old_cpos); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| else if (new_cpos < old_cpos) |
| { |
| snprintf(seq,64,"\x1b[%dD", old_cpos - new_cpos); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| |
| l->oldpos = l->pos; |
| |
| if (writeEscSequence(session, ab.b, ab.len) == -1) {} /* Can't recover from write error. */ |
| abFree(&ab); |
| } |
| |
| /* Multi line low level line refresh. |
| * |
| * Rewrite the currently edited line accordingly to the buffer content, |
| * cursor position, and number of columns of the terminal. */ |
| static void refreshMultiLine(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| char seq[64]; |
| int plen = strlen(l->prompt); |
| int rows = (plen+l->len+l->cols-1)/l->cols; /* rows used by current buf. */ |
| int rpos = (plen+l->oldpos+l->cols)/l->cols; /* cursor relative row. */ |
| int rpos2; /* rpos after refresh. */ |
| int old_rows = l->maxrows; |
| int pos; |
| int j; |
| struct abuf ab; |
| |
| /* Update maxrows if needed. */ |
| if (rows > (int)l->maxrows) l->maxrows = rows; |
| |
| /* First step: clear all the lines used before. To do so start by |
| * going to the last row. */ |
| abInit(&ab); |
| if (old_rows-rpos > 0) { |
| lndebug("go down %d", old_rows-rpos); |
| snprintf(seq,64,"\x1b[%dB", old_rows-rpos); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| |
| /* Now for every row clear it, go up. */ |
| for (j = 0; j < old_rows-1; j++) { |
| lndebug("clear+up"); |
| snprintf(seq,64,"\x1b[999D\x1b[0K\x1b[1A"); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| |
| /* Clean the top line. */ |
| lndebug("clear"); |
| snprintf(seq,64,"\x1b[999D\x1b[0K"); |
| abAppend(&ab,seq,strlen(seq)); |
| |
| /* Write the prompt and the current buffer content */ |
| abAppend(&ab,l->prompt,strlen(l->prompt)); |
| abAppend(&ab,l->buf,l->len); |
| |
| /* If we are at the very end of the screen with our prompt, we need to |
| * emit a newline and move the prompt to the first column. */ |
| if (l->pos && |
| l->pos == l->len && |
| (l->pos+plen) % l->cols == 0) |
| { |
| lndebug("<newline>"); |
| abAppend(&ab,"\n",1); |
| snprintf(seq,64,"\x1b[999D"); |
| abAppend(&ab,seq,strlen(seq)); |
| rows++; |
| if (rows > (int)l->maxrows) l->maxrows = rows; |
| } |
| |
| /* Move cursor to right position. */ |
| rpos2 = (plen+l->pos+l->cols)/l->cols; /* current cursor relative row. */ |
| lndebug("rpos2 %d", rpos2); |
| |
| /* Go up till we reach the expected positon. */ |
| if (rows-rpos2 > 0) { |
| lndebug("go-up %d", rows-rpos2); |
| snprintf(seq,64,"\x1b[%dA", rows-rpos2); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| |
| /* Set column. */ |
| lndebug("set col %d", 1+((plen+(int)l->pos) % (int)l->cols)); |
| snprintf(seq,64,"\x1b[999D"); |
| abAppend(&ab,seq,strlen(seq)); |
| pos = ((plen+(int)l->pos) % (int)l->cols); |
| if (pos) |
| { |
| snprintf(seq,64,"\x1b[%dC", pos); |
| abAppend(&ab,seq,strlen(seq)); |
| } |
| lndebug("\n"); |
| l->oldpos = l->pos; |
| |
| if (writeEscSequence(session, ab.b, ab.len) == -1) {} /* Can't recover from write error. */ |
| abFree(&ab); |
| |
| lndebug(" - out\n"); |
| } |
| |
| /* Calls the two low level functions refreshCursorSingleLine() or |
| * refreshCursorMultiLine() according to the selected mode. */ |
| static void refreshCursor(linenoiseSession *session) { |
| if (session->mlmode) |
| refreshCursorMultiLine(session); |
| else |
| refreshCursorSingleLine(session); |
| } |
| |
| /* Calls the two low level functions refreshSingleLine() or |
| * refreshMultiLine() according to the selected mode. */ |
| static void refreshLine(linenoiseSession *session) { |
| if (session->mlmode) |
| refreshMultiLine(session); |
| else |
| refreshSingleLine(session); |
| } |
| |
| /* Insert the character 'c' at cursor current position. |
| * |
| * On error writing to the terminal -1 is returned, otherwise 0. */ |
| static int linenoiseEditInsert(linenoiseSession *session, char c) { |
| struct linenoiseState *l = &session->state; |
| if (l->len < l->buflen) { |
| if (l->len == l->pos) { |
| int plen = strlen(l->prompt); |
| int rows = (plen+l->len+l->cols)/l->cols; |
| |
| l->buf[l->pos] = c; |
| l->pos++; |
| l->len++; |
| l->buf[l->len] = '\0'; |
| lndebug(" plen=%d len=%d pos=%d cols=%d buf=<%s>\n", |
| (int)l->plen, (int)l->len, (int)l->pos, (int)l->cols, l->buf); |
| if (session->io.write(session->io.fd_out, &c, 1) == -1) return -1; |
| l->oldpos = l->pos; |
| l->maxrows = rows; |
| } else { |
| memmove(l->buf+l->pos+1,l->buf+l->pos,l->len-l->pos); |
| l->buf[l->pos] = c; |
| l->len++; |
| l->pos++; |
| l->buf[l->len] = '\0'; |
| lndebug(" plen=%d len=%d pos=%d cols=%d buf=<%s>\n", |
| l->plen, l->len, l->pos, l->cols, l->buf); |
| refreshLine(session); |
| } |
| } |
| return 0; |
| } |
| |
| /* Move cursor on the left. */ |
| static void linenoiseEditMoveLeft(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| if (l->pos > 0) { |
| l->pos--; |
| refreshCursor(session); |
| } |
| } |
| |
| /* Move cursor on the right. */ |
| static void linenoiseEditMoveRight(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| if (l->pos != l->len) { |
| l->pos++; |
| refreshCursor(session); |
| } |
| } |
| |
| /* Move cursor to the start of the line. */ |
| static void linenoiseEditMoveHome(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| if (l->pos != 0) { |
| l->pos = 0; |
| refreshCursor(session); |
| } |
| } |
| |
| /* Move cursor to the end of the line. */ |
| static void linenoiseEditMoveEnd(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| if (l->pos != l->len) { |
| l->pos = l->len; |
| refreshCursor(session); |
| } |
| } |
| |
| /* strdup implementation */ |
| static inline char *linenoise_strdup(const char *s) |
| { |
| size_t size = strlen(s) + 1; |
| char *new = bcmos_alloc(size); |
| if (new) |
| memcpy(new, s, size); |
| return new; |
| } |
| |
| /* Substitute the currently edited line with the next or previous history |
| * entry as specified by 'dir'. */ |
| #define LINENOISE_HISTORY_NEXT 0 |
| #define LINENOISE_HISTORY_PREV 1 |
| static void linenoiseEditHistoryNext(linenoiseSession *session, int dir) { |
| struct linenoiseState *l = &session->state; |
| if (session->history_len > 1) { |
| /* Update the current history entry before to |
| * overwrite it with the next one. */ |
| bcmos_free(session->history[session->history_len - 1 - l->history_index]); |
| session->history[session->history_len - 1 - l->history_index] = linenoise_strdup(l->buf); |
| /* Show the new entry */ |
| l->history_index += (dir == LINENOISE_HISTORY_PREV) ? 1 : -1; |
| if (l->history_index < 0) { |
| l->history_index = 0; |
| return; |
| } else if (l->history_index >= session->history_len) { |
| l->history_index = session->history_len-1; |
| return; |
| } |
| strncpy(l->buf,session->history[session->history_len - 1 - l->history_index],l->buflen); |
| l->buf[l->buflen-1] = '\0'; |
| l->len = l->pos = strlen(l->buf); |
| refreshLine(session); |
| } |
| } |
| |
| /* Delete the character at the right of the cursor without altering the cursor |
| * position. Basically this is what happens with the "Delete" keyboard key. */ |
| static void linenoiseEditDelete(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| if (l->len > 0 && l->pos < l->len) { |
| memmove(l->buf+l->pos,l->buf+l->pos+1,l->len-l->pos-1); |
| l->len--; |
| l->buf[l->len] = '\0'; |
| refreshLine(session); |
| } |
| } |
| |
| /* Backspace implementation. */ |
| static void linenoiseEditBackspace(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| if (l->pos > 0 && l->len > 0) { |
| memmove(l->buf+l->pos-1,l->buf+l->pos,l->len-l->pos); |
| l->pos--; |
| l->len--; |
| l->buf[l->len] = '\0'; |
| refreshLine(session); |
| } |
| } |
| |
| /* Delete the previosu word, maintaining the cursor at the start of the |
| * current word. */ |
| static void linenoiseEditDeletePrevWord(linenoiseSession *session) { |
| struct linenoiseState *l = &session->state; |
| size_t old_pos = l->pos; |
| size_t diff; |
| |
| while (l->pos > 0 && l->buf[l->pos-1] == ' ') |
| l->pos--; |
| while (l->pos > 0 && l->buf[l->pos-1] != ' ') |
| l->pos--; |
| diff = old_pos - l->pos; |
| memmove(l->buf+l->pos,l->buf+old_pos,l->len-old_pos+1); |
| l->len -= diff; |
| refreshLine(session); |
| } |
| |
| static int linenoiseReadChar(linenoiseSession *session, char *c) |
| { |
| int n; |
| |
| do { |
| if (session->read_ahead_buf) |
| { |
| *c = session->read_ahead_buf[session->read_ahead_pos++]; |
| lndebug("read char from buf %d(%c)\n", *c, *c); |
| if (*c) |
| return 1; |
| bcmos_free(session->read_ahead_buf); |
| session->read_ahead_buf = NULL; |
| /* Fall through */ |
| } |
| n = session->io.read_char(session->io.fd_in, c); |
| } while (!n || (n == 1 && ! *c)); |
| lndebug("read char from io %d(%c) n=%d\n", *c, *c, n); |
| return n; |
| } |
| |
| static int linenoiseHandleEscSequence(linenoiseSession *session) |
| { |
| struct linenoiseState *l = &session->state; |
| char seq[32]; |
| |
| /* Read the next two bytes representing the escape sequence. |
| * Use two calls to handle slow terminals returning the two |
| * chars at different times. */ |
| if (linenoiseReadChar(session, seq) == -1) return -1; |
| if (linenoiseReadChar(session, seq+1) == -1) return -1; |
| lndebug("seq=%02x(%c) seq1=%02x(%c)\n", seq[0], seq[0], seq[1], seq[1]); |
| |
| /* ESC [ sequences. */ |
| if (seq[0] == '[') { |
| if (seq[1] >= '0' && seq[1] <= '9') { |
| int n = 2; |
| char terminator = 0; |
| |
| /* Extended escape, read additional byte(s) */ |
| while (linenoiseReadChar(session, seq+n) != -1 && n < sizeof(seq) - 1) |
| { |
| terminator = seq[n++]; |
| if ( !(terminator >= '0' && terminator <= '9') && terminator != ';') |
| break; |
| } |
| seq[n] = 0; |
| switch (terminator ) { |
| case '~': |
| linenoiseEditDelete(session); |
| break; |
| case 'R': |
| { |
| int row, col; |
| /* Position report */ |
| seq[n-1] = 0; /* Cut R */ |
| sscanf(seq+1, "%d;%d", &row, &col); |
| l->cols = col; |
| session->ncolreqs = 0; |
| lndebug("position report row=%d col=%d\n", row, col); |
| } |
| default: |
| break; |
| } |
| } else { |
| switch(seq[1]) { |
| case 'A': /* Up */ |
| linenoiseEditHistoryNext(session, LINENOISE_HISTORY_PREV); |
| break; |
| case 'B': /* Down */ |
| linenoiseEditHistoryNext(session, LINENOISE_HISTORY_NEXT); |
| break; |
| case 'C': /* Right */ |
| linenoiseEditMoveRight(session); |
| break; |
| case 'D': /* Left */ |
| linenoiseEditMoveLeft(session); |
| break; |
| case 'H': /* Home */ |
| linenoiseEditMoveHome(session); |
| break; |
| case 'F': /* End*/ |
| linenoiseEditMoveEnd(session); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| /* ESC O sequences. */ |
| else if (seq[0] == 'O') { |
| switch(seq[1]) { |
| case 'H': /* Home */ |
| linenoiseEditMoveHome(session); |
| break; |
| case 'F': /* End*/ |
| linenoiseEditMoveEnd(session); |
| break; |
| default: |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| /* This function is the core of the line editing capability of linenoise. |
| * It expects 'fd' to be already in "raw mode" so that every key pressed |
| * will be returned ASAP to read(). |
| * |
| * The resulting string is put into 'buf' when the user type enter, or |
| * when ctrl+d is typed. |
| * |
| * The function returns the length of the current buffer. */ |
| static int linenoiseEdit(linenoiseSession *session, char *buf, size_t buflen, const char *prompt) |
| { |
| struct linenoiseState *l = &session->state; |
| int nread = 0; |
| |
| /* Populate the linenoise state that we pass to functions implementing |
| * specific editing functionalities. */ |
| l->buf = buf; |
| l->buflen = buflen; |
| l->prompt = prompt; |
| l->plen = strlen(prompt); |
| l->oldpos = l->pos = 0; |
| l->len = 0; |
| if (!l->cols) |
| l->cols = 80; |
| getColumnsRequest(session); |
| l->maxrows = 0; |
| l->history_index = 0; |
| |
| /* Buffer starts empty. */ |
| l->buf[0] = '\0'; |
| l->buflen--; /* Make sure there is always space for the nulterm */ |
| |
| /* The latest history entry is always our current buffer, that |
| * initially is just an empty string. */ |
| linenoiseHistoryAdd(session, ""); |
| if (l->plen && session->io.write(session->io.fd_out, prompt, l->plen) == -1) return -1; |
| while(1) { |
| char c; |
| |
| nread = linenoiseReadChar(session, &c); |
| if (nread <= 0) goto edit_out; |
| |
| lndebug("c=%02x(%c)\n", c, c); |
| /* Only autocomplete when the callback is set. It returns < 0 when |
| * there was an error reading from fd. Otherwise it will return the |
| * character that should be handled next. */ |
| if (c == KEY_TAB && session->completionCallback != NULL) { |
| completeLine(session); |
| continue; |
| } |
| |
| switch(c) { |
| case KEY_CR: /* enter */ |
| case KEY_LF: /* enter */ |
| session->history_len--; |
| bcmos_free(session->history[session->history_len]); |
| goto edit_out; |
| case CTRL_C: /* ctrl-c */ |
| return -1; |
| case BACKSPACE: /* backspace */ |
| case 8: /* ctrl-h */ |
| linenoiseEditBackspace(session); |
| break; |
| case CTRL_D: /* ctrl-d, remove char at right of cursor, or of the |
| line is empty, act as end-of-file. */ |
| if (l->len > 0) { |
| linenoiseEditDelete(session); |
| } else { |
| session->history_len--; |
| bcmos_free(session->history[session->history_len]); |
| return -1; |
| } |
| break; |
| case CTRL_T: /* ctrl-t, swaps current character with previous. */ |
| if (l->pos > 0 && l->pos < l->len) { |
| int aux = buf[l->pos-1]; |
| buf[l->pos-1] = buf[l->pos]; |
| buf[l->pos] = aux; |
| if (l->pos != l->len-1) l->pos++; |
| refreshLine(session); |
| } |
| break; |
| case CTRL_B: /* ctrl-b */ |
| linenoiseEditMoveLeft(session); |
| break; |
| case CTRL_F: /* ctrl-f */ |
| linenoiseEditMoveRight(session); |
| break; |
| case CTRL_P: /* ctrl-p */ |
| linenoiseEditHistoryNext(session, LINENOISE_HISTORY_PREV); |
| break; |
| case CTRL_N: /* ctrl-n */ |
| linenoiseEditHistoryNext(session, LINENOISE_HISTORY_NEXT); |
| break; |
| case ESC: /* escape sequence */ |
| linenoiseHandleEscSequence(session); |
| break; |
| default: |
| if (linenoiseEditInsert(session,c)) |
| { |
| lndebug("editInsert failed\n"); |
| return -1; |
| }; |
| break; |
| case CTRL_U: /* Ctrl+u, delete the whole line. */ |
| buf[0] = '\0'; |
| l->pos = l->len = 0; |
| refreshLine(session); |
| break; |
| case CTRL_K: /* Ctrl+k, delete from current to end of line. */ |
| buf[l->pos] = '\0'; |
| l->len = l->pos; |
| refreshLine(session); |
| break; |
| case CTRL_A: /* Ctrl+a, go to the start of the line */ |
| linenoiseEditMoveHome(session); |
| break; |
| case CTRL_E: /* ctrl+e, go to the end of the line */ |
| linenoiseEditMoveEnd(session); |
| break; |
| case CTRL_L: /* ctrl+l, clear screen */ |
| linenoiseClearScreen(session); |
| refreshLine(session); |
| break; |
| case CTRL_W: /* ctrl+w, delete previous word */ |
| linenoiseEditDeletePrevWord(session); |
| break; |
| } |
| } |
| edit_out: |
| lndebug(" - out. len=%d buf=<%s>\n", l->len, buf); |
| return (nread >= 0) ? l->len : -1; |
| } |
| |
| /* Get without editing */ |
| static int linenoiseNoedit(linenoiseSession *session, char *buf, size_t buflen) { |
| char c; |
| int len = 0; |
| int switch_to_smart_mode = 0; |
| int nread = 0; |
| #ifndef LINENOISE_DISABLE_TERMIOS |
| int atty_term = isatty(STDIN_FILENO); |
| #else |
| int atty_term = 1; |
| #endif |
| |
| while ((nread = linenoiseReadChar(session, &c)) != -1 && len < buflen - 1) |
| { |
| if (c == '\n' || c == '\r') |
| break; |
| buf[len++] = c; |
| /* If buffer contains ESC sequence - perhaps the terminal is not dumb after all */ |
| if (c == ESC && !session->io.dumb_terminal && !session->forced_dumb && atty_term) |
| { |
| switch_to_smart_mode = 1; |
| break; |
| } |
| /* Echo here is terminal is in raw mode */ |
| if (session->rawmode) |
| { |
| session->io.write(session->io.fd_out, &c, 1); |
| } |
| } |
| buf[len] = 0; |
| if (switch_to_smart_mode) |
| { |
| /* Copy buffer into read-ahead buffer and re-parse */ |
| lndebug("switching to smart mode\n"); |
| /* If there already is read_ahead buf - realloc it */ |
| if (session->read_ahead_buf) |
| { |
| char *new_buf; |
| new_buf = bcmos_alloc(strlen(session->read_ahead_buf) - session->read_ahead_pos + len + 1); |
| if (!new_buf) |
| return -1; |
| memcpy(new_buf, buf, len); |
| strcpy(&new_buf[len], &session->read_ahead_buf[session->read_ahead_pos]); |
| bcmos_free(session->read_ahead_buf); |
| session->read_ahead_buf = new_buf; |
| } |
| else |
| { |
| session->read_ahead_buf = bcmos_alloc(len + 1); |
| if (!session->read_ahead_buf) |
| return -1; |
| strcpy(session->read_ahead_buf, buf); |
| } |
| session->read_ahead_pos = 0; |
| session->dumb_terminal = 0; |
| session->ncolreqs = 0; |
| *buf = 0; |
| nread = linenoiseEdit(session, buf, buflen, ""); |
| } |
| lndebug(" - out. len=%d buf=<%s> nread=%d\n", (int)strlen(buf), buf, nread); |
| return (nread >=0) ? strlen(buf) : -1; |
| } |
| |
| |
| /* This function calls the line editing function linenoiseEdit() using |
| * the STDIN file descriptor set in raw mode. */ |
| static int linenoiseRaw(linenoiseSession *session, char *buf, size_t buflen, const char *prompt) { |
| int rc = 0; |
| |
| lndebug("\n"); |
| #ifndef LINENOISE_DISABLE_TERMIOS |
| if (!isatty(STDIN_FILENO)) { |
| /* Not a tty: read from file / pipe. */ |
| rc = linenoiseNoedit(session, buf, buflen); |
| if (rc >= 0) |
| session->io.write(session->io.fd_out, "\n", 1); |
| } |
| else |
| #endif |
| { |
| /* Interactive editing. */ |
| if (enableRawMode(session) == -1) return -1; |
| |
| if (!session->dumb_terminal && session->ncolreqs > 1) |
| { |
| session->dumb_terminal = 1; |
| lndebug("dumb_terminal=%d\n", session->dumb_terminal); |
| } |
| if (session->dumb_terminal) { |
| session->io.write(session->io.fd_out, prompt, strlen(prompt)); |
| rc = linenoiseNoedit(session, buf, buflen); |
| } else { |
| rc = linenoiseEdit(session, buf, buflen, prompt); |
| } |
| |
| disableRawMode(session); |
| if (rc >= 0) |
| session->io.write(session->io.fd_out, "\n", 1); |
| } |
| lndebug(" - out. len=%d buf=<%s> rc=%d\n", (int)strlen(buf), buf, rc); |
| return rc; |
| } |
| |
| /* The high level function that is the main API of the linenoise library. |
| * This function checks if the terminal has basic capabilities, just checking |
| * for a blacklist of stupid terminals, and later either calls the line |
| * editing function or uses dummy fgets() so that you will be able to type |
| * something even in the most desperate of the conditions. */ |
| char *linenoise(linenoiseSession *session, const char *prompt, char *buf, size_t size) { |
| |
| if (size == 0) { |
| errno = EINVAL; |
| return NULL; |
| } |
| |
| /* Configure terminal as dumb if it doesn't support basic ESC sequences */ |
| if (session->io.dumb_terminal || session->forced_dumb) { |
| int rc; |
| |
| session->io.write(session->io.fd_out, prompt, strlen(prompt)); |
| rc = linenoiseNoedit(session, buf, size); |
| session->io.write(session->io.fd_out, "\n", 1); |
| lndebug(" - out. len=%d buf=<%s>\n", (int)strlen(buf), buf); |
| return (rc == -1) ? NULL : buf; |
| } else { |
| if (linenoiseRaw(session, buf, size, prompt) == -1) return NULL; |
| lndebug(" - out. len=%d buf=<%s>\n", (int)strlen(buf), buf); |
| return buf; |
| } |
| } |
| |
| /* ================================ History ================================= */ |
| |
| /* Free the history, but does not reset it. Only used when we have to |
| * exit() to avoid memory leaks are reported by valgrind & co. */ |
| static void freeHistory(linenoiseSession *session) { |
| if (session->history) { |
| int j; |
| |
| for (j = 0; j < session->history_len; j++) |
| bcmos_free(session->history[j]); |
| bcmos_free(session->history); |
| session->history = NULL; |
| } |
| } |
| |
| /* This is the API call to add a new entry in the linenoise history. |
| * It uses a fixed array of char pointers that are shifted (memmoved) |
| * when the history max length is reached in order to remove the older |
| * entry and make room for the new one, so it is not exactly suitable for huge |
| * histories, but will work well for a few hundred of entries. |
| * |
| * Using a circular buffer is smarter, but a bit more complex to handle. */ |
| int linenoiseHistoryAdd(linenoiseSession *session, const char *line) { |
| char *linecopy; |
| |
| if (session->history_max_len == 0) return 0; |
| |
| /* Initialization on first call. */ |
| if (session->history == NULL) { |
| session->history = bcmos_alloc(sizeof(char*)*session->history_max_len); |
| if (session->history == NULL) return 0; |
| memset(session->history,0,(sizeof(char*)*session->history_max_len)); |
| } |
| |
| /* Don't add duplicated lines. */ |
| if (session->history_len && !strcmp(session->history[session->history_len-1], line)) return 0; |
| |
| /* Add an heap allocated copy of the line in the history. |
| * If we reached the max length, remove the older line. */ |
| linecopy = linenoise_strdup(line); |
| if (!linecopy) return 0; |
| if (session->history_len == session->history_max_len) { |
| bcmos_free(session->history[0]); |
| memmove(session->history,session->history+1,sizeof(char*)*(session->history_max_len-1)); |
| session->history_len--; |
| } |
| session->history[session->history_len] = linecopy; |
| session->history_len++; |
| return 1; |
| } |
| |
| /* Set the maximum length for the history. This function can be called even |
| * if there is already some history, the function will make sure to retain |
| * just the latest 'len' elements if the new history length value is smaller |
| * than the amount of items already inside the history. */ |
| int linenoiseHistorySetMaxLen(linenoiseSession *session, int len) { |
| char **new; |
| |
| if (len < 1) return 0; |
| if (session->history) { |
| int tocopy = session->history_len; |
| |
| new = bcmos_alloc(sizeof(char*)*len); |
| if (new == NULL) return 0; |
| |
| /* If we can't copy everything, free the elements we'll not use. */ |
| if (len < tocopy) { |
| int j; |
| |
| for (j = 0; j < tocopy-len; j++) bcmos_free(session->history[j]); |
| tocopy = len; |
| } |
| memset(new,0,sizeof(char*)*len); |
| memcpy(new,session->history+(session->history_len-tocopy), sizeof(char*)*tocopy); |
| bcmos_free(session->history); |
| session->history = new; |
| } |
| session->history_max_len = len; |
| if (session->history_len > session->history_max_len) |
| session->history_len = session->history_max_len; |
| return 1; |
| } |
| |
| int linenoiseSetRaw(linenoiseSession *session, int raw) |
| { |
| int rc = 0; |
| if (raw) |
| rc = enableRawMode(session); |
| else |
| disableRawMode(session); |
| return rc; |
| } |
| |
| int linenoiseGetRaw(linenoiseSession *session) |
| { |
| return session->rawmode; |
| } |
| |
| #ifndef LINENOISE_DISABLE_HIST_SAVE |
| |
| /* Save the history in the specified file. On success 0 is returned |
| * otherwise -1 is returned. */ |
| int linenoiseHistorySave(linenoiseSession *session, const char *filename) { |
| FILE *fp = fopen(filename,"w"); |
| int j; |
| |
| if (fp == NULL) return -1; |
| for (j = 0; j < session->history_len; j++) |
| fprintf(fp,"%s\n",session->history[j]); |
| fclose(fp); |
| return 0; |
| } |
| |
| /* Load the history from the specified file. If the file does not exist |
| * zero is returned and no operation is performed. |
| * |
| * If the file exists and the operation succeeded 0 is returned, otherwise |
| * on error -1 is returned. */ |
| int linenoiseHistoryLoad(linenoiseSession *session, const char *filename) { |
| FILE *fp = fopen(filename,"r"); |
| char *buf; |
| |
| if (fp == NULL) return -1; |
| buf = bcmos_alloc(LINENOISE_MAX_LINE); |
| if (!buf) |
| { |
| fclose(fp); |
| return -1; |
| } |
| |
| while (fgets(buf,LINENOISE_MAX_LINE,fp) != NULL) { |
| char *p; |
| |
| p = strchr(buf,'\r'); |
| if (!p) p = strchr(buf,'\n'); |
| if (p) *p = '\0'; |
| linenoiseHistoryAdd(session, buf); |
| } |
| fclose(fp); |
| bcmos_free(buf); |
| return 0; |
| } |
| |
| #endif |