--- /dev/null
+/*
+ * Command line editing and history
+ * Copyright (c) 2010-2011, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+#include <termios.h>
+
+#include "common.h"
+#include "eloop.h"
+#include "list.h"
+#include "edit.h"
+
+#define CMD_BUF_LEN 4096
+static char cmdbuf[CMD_BUF_LEN];
+static int cmdbuf_pos = 0;
+static int cmdbuf_len = 0;
+static char currbuf[CMD_BUF_LEN];
+static int currbuf_valid = 0;
+static const char *ps2 = NULL;
+
+#define HISTORY_MAX 100
+
+struct edit_history {
+ struct dl_list list;
+ char str[1];
+};
+
+static struct dl_list history_list;
+static struct edit_history *history_curr;
+
+static void *edit_cb_ctx;
+static void (*edit_cmd_cb)(void *ctx, char *cmd);
+static void (*edit_eof_cb)(void *ctx);
+static char ** (*edit_completion_cb)(void *ctx, const char *cmd, int pos) =
+ NULL;
+
+static struct termios prevt, newt;
+
+
+#define CLEAR_END_LINE "\e[K"
+
+
+void edit_clear_line(void)
+{
+ int i;
+ putchar('\r');
+ for (i = 0; i < cmdbuf_len + 2 + (ps2 ? (int) os_strlen(ps2) : 0); i++)
+ putchar(' ');
+}
+
+
+static void move_start(void)
+{
+ cmdbuf_pos = 0;
+ edit_redraw();
+}
+
+
+static void move_end(void)
+{
+ cmdbuf_pos = cmdbuf_len;
+ edit_redraw();
+}
+
+
+static void move_left(void)
+{
+ if (cmdbuf_pos > 0) {
+ cmdbuf_pos--;
+ edit_redraw();
+ }
+}
+
+
+static void move_right(void)
+{
+ if (cmdbuf_pos < cmdbuf_len) {
+ cmdbuf_pos++;
+ edit_redraw();
+ }
+}
+
+
+static void move_word_left(void)
+{
+ while (cmdbuf_pos > 0 && cmdbuf[cmdbuf_pos - 1] == ' ')
+ cmdbuf_pos--;
+ while (cmdbuf_pos > 0 && cmdbuf[cmdbuf_pos - 1] != ' ')
+ cmdbuf_pos--;
+ edit_redraw();
+}
+
+
+static void move_word_right(void)
+{
+ while (cmdbuf_pos < cmdbuf_len && cmdbuf[cmdbuf_pos] == ' ')
+ cmdbuf_pos++;
+ while (cmdbuf_pos < cmdbuf_len && cmdbuf[cmdbuf_pos] != ' ')
+ cmdbuf_pos++;
+ edit_redraw();
+}
+
+
+static void delete_left(void)
+{
+ if (cmdbuf_pos == 0)
+ return;
+
+ edit_clear_line();
+ os_memmove(cmdbuf + cmdbuf_pos - 1, cmdbuf + cmdbuf_pos,
+ cmdbuf_len - cmdbuf_pos);
+ cmdbuf_pos--;
+ cmdbuf_len--;
+ edit_redraw();
+}
+
+
+static void delete_current(void)
+{
+ if (cmdbuf_pos == cmdbuf_len)
+ return;
+
+ edit_clear_line();
+ os_memmove(cmdbuf + cmdbuf_pos, cmdbuf + cmdbuf_pos + 1,
+ cmdbuf_len - cmdbuf_pos);
+ cmdbuf_len--;
+ edit_redraw();
+}
+
+
+static void delete_word(void)
+{
+ int pos;
+
+ edit_clear_line();
+ pos = cmdbuf_pos;
+ while (pos > 0 && cmdbuf[pos - 1] == ' ')
+ pos--;
+ while (pos > 0 && cmdbuf[pos - 1] != ' ')
+ pos--;
+ os_memmove(cmdbuf + pos, cmdbuf + cmdbuf_pos, cmdbuf_len - cmdbuf_pos);
+ cmdbuf_len -= cmdbuf_pos - pos;
+ cmdbuf_pos = pos;
+ edit_redraw();
+}
+
+
+static void clear_left(void)
+{
+ if (cmdbuf_pos == 0)
+ return;
+
+ edit_clear_line();
+ os_memmove(cmdbuf, cmdbuf + cmdbuf_pos, cmdbuf_len - cmdbuf_pos);
+ cmdbuf_len -= cmdbuf_pos;
+ cmdbuf_pos = 0;
+ edit_redraw();
+}
+
+
+static void clear_right(void)
+{
+ if (cmdbuf_pos == cmdbuf_len)
+ return;
+
+ edit_clear_line();
+ cmdbuf_len = cmdbuf_pos;
+ edit_redraw();
+}
+
+
+static void history_add(const char *str)
+{
+ struct edit_history *h, *match = NULL, *last = NULL;
+ size_t len, count = 0;
+
+ if (str[0] == '\0')
+ return;
+
+ dl_list_for_each(h, &history_list, struct edit_history, list) {
+ if (os_strcmp(str, h->str) == 0) {
+ match = h;
+ break;
+ }
+ last = h;
+ count++;
+ }
+
+ if (match) {
+ dl_list_del(&h->list);
+ dl_list_add(&history_list, &h->list);
+ history_curr = h;
+ return;
+ }
+
+ if (count >= HISTORY_MAX && last) {
+ dl_list_del(&last->list);
+ os_free(last);
+ }
+
+ len = os_strlen(str);
+ h = os_zalloc(sizeof(*h) + len);
+ if (h == NULL)
+ return;
+ dl_list_add(&history_list, &h->list);
+ os_strlcpy(h->str, str, len + 1);
+ history_curr = h;
+}
+
+
+static void history_use(void)
+{
+ edit_clear_line();
+ cmdbuf_len = cmdbuf_pos = os_strlen(history_curr->str);
+ os_memcpy(cmdbuf, history_curr->str, cmdbuf_len);
+ edit_redraw();
+}
+
+
+static void history_prev(void)
+{
+ if (history_curr == NULL)
+ return;
+
+ if (history_curr ==
+ dl_list_first(&history_list, struct edit_history, list)) {
+ if (!currbuf_valid) {
+ cmdbuf[cmdbuf_len] = '\0';
+ os_memcpy(currbuf, cmdbuf, cmdbuf_len + 1);
+ currbuf_valid = 1;
+ history_use();
+ return;
+ }
+ }
+
+ if (history_curr ==
+ dl_list_last(&history_list, struct edit_history, list))
+ return;
+
+ history_curr = dl_list_entry(history_curr->list.next,
+ struct edit_history, list);
+ history_use();
+}
+
+
+static void history_next(void)
+{
+ if (history_curr == NULL ||
+ history_curr ==
+ dl_list_first(&history_list, struct edit_history, list)) {
+ if (currbuf_valid) {
+ currbuf_valid = 0;
+ edit_clear_line();
+ cmdbuf_len = cmdbuf_pos = os_strlen(currbuf);
+ os_memcpy(cmdbuf, currbuf, cmdbuf_len);
+ edit_redraw();
+ }
+ return;
+ }
+
+ history_curr = dl_list_entry(history_curr->list.prev,
+ struct edit_history, list);
+ history_use();
+}
+
+
+static void history_read(const char *fname)
+{
+ FILE *f;
+ char buf[CMD_BUF_LEN], *pos;
+
+ f = fopen(fname, "r");
+ if (f == NULL)
+ return;
+
+ while (fgets(buf, CMD_BUF_LEN, f)) {
+ for (pos = buf; *pos; pos++) {
+ if (*pos == '\r' || *pos == '\n') {
+ *pos = '\0';
+ break;
+ }
+ }
+ history_add(buf);
+ }
+
+ fclose(f);
+}
+
+
+static void history_write(const char *fname,
+ int (*filter_cb)(void *ctx, const char *cmd))
+{
+ FILE *f;
+ struct edit_history *h;
+
+ f = fopen(fname, "w");
+ if (f == NULL)
+ return;
+
+ dl_list_for_each_reverse(h, &history_list, struct edit_history, list) {
+ if (filter_cb && filter_cb(edit_cb_ctx, h->str))
+ continue;
+ fprintf(f, "%s\n", h->str);
+ }
+
+ fclose(f);
+}
+
+
+static void history_debug_dump(void)
+{
+ struct edit_history *h;
+ edit_clear_line();
+ printf("\r");
+ dl_list_for_each_reverse(h, &history_list, struct edit_history, list)
+ printf("%s%s\n", h == history_curr ? "[C]" : "", h->str);
+ if (currbuf_valid)
+ printf("{%s}\n", currbuf);
+ edit_redraw();
+}
+
+
+static void insert_char(int c)
+{
+ if (cmdbuf_len >= (int) sizeof(cmdbuf) - 1)
+ return;
+ if (cmdbuf_len == cmdbuf_pos) {
+ cmdbuf[cmdbuf_pos++] = c;
+ cmdbuf_len++;
+ putchar(c);
+ fflush(stdout);
+ } else {
+ os_memmove(cmdbuf + cmdbuf_pos + 1, cmdbuf + cmdbuf_pos,
+ cmdbuf_len - cmdbuf_pos);
+ cmdbuf[cmdbuf_pos++] = c;
+ cmdbuf_len++;
+ edit_redraw();
+ }
+}
+
+
+static void process_cmd(void)
+{
+ currbuf_valid = 0;
+ if (cmdbuf_len == 0) {
+ printf("\n%s> ", ps2 ? ps2 : "");
+ fflush(stdout);
+ return;
+ }
+ printf("\n");
+ cmdbuf[cmdbuf_len] = '\0';
+ history_add(cmdbuf);
+ cmdbuf_pos = 0;
+ cmdbuf_len = 0;
+ edit_cmd_cb(edit_cb_ctx, cmdbuf);
+ printf("%s> ", ps2 ? ps2 : "");
+ fflush(stdout);
+}
+
+
+static void free_completions(char **c)
+{
+ int i;
+ if (c == NULL)
+ return;
+ for (i = 0; c[i]; i++)
+ os_free(c[i]);
+ os_free(c);
+}
+
+
+static int filter_strings(char **c, char *str, size_t len)
+{
+ int i, j;
+
+ for (i = 0, j = 0; c[j]; j++) {
+ if (os_strncasecmp(c[j], str, len) == 0) {
+ if (i != j) {
+ c[i] = c[j];
+ c[j] = NULL;
+ }
+ i++;
+ } else {
+ os_free(c[j]);
+ c[j] = NULL;
+ }
+ }
+ c[i] = NULL;
+ return i;
+}
+
+
+static int common_len(const char *a, const char *b)
+{
+ int len = 0;
+ while (a[len] && a[len] == b[len])
+ len++;
+ return len;
+}
+
+
+static int max_common_length(char **c)
+{
+ int len, i;
+
+ len = os_strlen(c[0]);
+ for (i = 1; c[i]; i++) {
+ int same = common_len(c[0], c[i]);
+ if (same < len)
+ len = same;
+ }
+
+ return len;
+}
+
+
+static int cmp_str(const void *a, const void *b)
+{
+ return os_strcmp(* (const char **) a, * (const char **) b);
+}
+
+static void complete(int list)
+{
+ char **c;
+ int i, len, count;
+ int start, end;
+ int room, plen, add_space;
+
+ if (edit_completion_cb == NULL)
+ return;
+
+ cmdbuf[cmdbuf_len] = '\0';
+ c = edit_completion_cb(edit_cb_ctx, cmdbuf, cmdbuf_pos);
+ if (c == NULL)
+ return;
+
+ end = cmdbuf_pos;
+ start = end;
+ while (start > 0 && cmdbuf[start - 1] != ' ')
+ start--;
+ plen = end - start;
+
+ count = filter_strings(c, &cmdbuf[start], plen);
+ if (count == 0) {
+ free_completions(c);
+ return;
+ }
+
+ len = max_common_length(c);
+ if (len <= plen && count > 1) {
+ if (list) {
+ qsort(c, count, sizeof(char *), cmp_str);
+ edit_clear_line();
+ printf("\r");
+ for (i = 0; c[i]; i++)
+ printf("%s%s", i > 0 ? " " : "", c[i]);
+ printf("\n");
+ edit_redraw();
+ }
+ free_completions(c);
+ return;
+ }
+ len -= plen;
+
+ room = sizeof(cmdbuf) - 1 - cmdbuf_len;
+ if (room < len)
+ len = room;
+ add_space = count == 1 && len < room;
+
+ os_memmove(cmdbuf + cmdbuf_pos + len + add_space, cmdbuf + cmdbuf_pos,
+ cmdbuf_len - cmdbuf_pos);
+ os_memcpy(&cmdbuf[cmdbuf_pos - plen], c[0], plen + len);
+ if (add_space)
+ cmdbuf[cmdbuf_pos + len] = ' ';
+
+ cmdbuf_pos += len + add_space;
+ cmdbuf_len += len + add_space;
+
+ edit_redraw();
+
+ free_completions(c);
+}
+
+
+enum edit_key_code {
+ EDIT_KEY_NONE = 256,
+ EDIT_KEY_TAB,
+ EDIT_KEY_UP,
+ EDIT_KEY_DOWN,
+ EDIT_KEY_RIGHT,
+ EDIT_KEY_LEFT,
+ EDIT_KEY_ENTER,
+ EDIT_KEY_BACKSPACE,
+ EDIT_KEY_INSERT,
+ EDIT_KEY_DELETE,
+ EDIT_KEY_HOME,
+ EDIT_KEY_END,
+ EDIT_KEY_PAGE_UP,
+ EDIT_KEY_PAGE_DOWN,
+ EDIT_KEY_F1,
+ EDIT_KEY_F2,
+ EDIT_KEY_F3,
+ EDIT_KEY_F4,
+ EDIT_KEY_F5,
+ EDIT_KEY_F6,
+ EDIT_KEY_F7,
+ EDIT_KEY_F8,
+ EDIT_KEY_F9,
+ EDIT_KEY_F10,
+ EDIT_KEY_F11,
+ EDIT_KEY_F12,
+ EDIT_KEY_CTRL_UP,
+ EDIT_KEY_CTRL_DOWN,
+ EDIT_KEY_CTRL_RIGHT,
+ EDIT_KEY_CTRL_LEFT,
+ EDIT_KEY_CTRL_A,
+ EDIT_KEY_CTRL_B,
+ EDIT_KEY_CTRL_D,
+ EDIT_KEY_CTRL_E,
+ EDIT_KEY_CTRL_F,
+ EDIT_KEY_CTRL_G,
+ EDIT_KEY_CTRL_H,
+ EDIT_KEY_CTRL_J,
+ EDIT_KEY_CTRL_K,
+ EDIT_KEY_CTRL_L,
+ EDIT_KEY_CTRL_N,
+ EDIT_KEY_CTRL_O,
+ EDIT_KEY_CTRL_P,
+ EDIT_KEY_CTRL_R,
+ EDIT_KEY_CTRL_T,
+ EDIT_KEY_CTRL_U,
+ EDIT_KEY_CTRL_V,
+ EDIT_KEY_CTRL_W,
+ EDIT_KEY_ALT_UP,
+ EDIT_KEY_ALT_DOWN,
+ EDIT_KEY_ALT_RIGHT,
+ EDIT_KEY_ALT_LEFT,
+ EDIT_KEY_SHIFT_UP,
+ EDIT_KEY_SHIFT_DOWN,
+ EDIT_KEY_SHIFT_RIGHT,
+ EDIT_KEY_SHIFT_LEFT,
+ EDIT_KEY_ALT_SHIFT_UP,
+ EDIT_KEY_ALT_SHIFT_DOWN,
+ EDIT_KEY_ALT_SHIFT_RIGHT,
+ EDIT_KEY_ALT_SHIFT_LEFT,
+ EDIT_KEY_EOF
+};
+
+static void show_esc_buf(const char *esc_buf, char c, int i)
+{
+ edit_clear_line();
+ printf("\rESC buffer '%s' c='%c' [%d]\n", esc_buf, c, i);
+ edit_redraw();
+}
+
+
+static enum edit_key_code esc_seq_to_key1_no(char last)
+{
+ switch (last) {
+ case 'A':
+ return EDIT_KEY_UP;
+ case 'B':
+ return EDIT_KEY_DOWN;
+ case 'C':
+ return EDIT_KEY_RIGHT;
+ case 'D':
+ return EDIT_KEY_LEFT;
+ default:
+ return EDIT_KEY_NONE;
+ }
+}
+
+
+static enum edit_key_code esc_seq_to_key1_shift(char last)
+{
+ switch (last) {
+ case 'A':
+ return EDIT_KEY_SHIFT_UP;
+ case 'B':
+ return EDIT_KEY_SHIFT_DOWN;
+ case 'C':
+ return EDIT_KEY_SHIFT_RIGHT;
+ case 'D':
+ return EDIT_KEY_SHIFT_LEFT;
+ default:
+ return EDIT_KEY_NONE;
+ }
+}
+
+
+static enum edit_key_code esc_seq_to_key1_alt(char last)
+{
+ switch (last) {
+ case 'A':
+ return EDIT_KEY_ALT_UP;
+ case 'B':
+ return EDIT_KEY_ALT_DOWN;
+ case 'C':
+ return EDIT_KEY_ALT_RIGHT;
+ case 'D':
+ return EDIT_KEY_ALT_LEFT;
+ default:
+ return EDIT_KEY_NONE;
+ }
+}
+
+
+static enum edit_key_code esc_seq_to_key1_alt_shift(char last)
+{
+ switch (last) {
+ case 'A':
+ return EDIT_KEY_ALT_SHIFT_UP;
+ case 'B':
+ return EDIT_KEY_ALT_SHIFT_DOWN;
+ case 'C':
+ return EDIT_KEY_ALT_SHIFT_RIGHT;
+ case 'D':
+ return EDIT_KEY_ALT_SHIFT_LEFT;
+ default:
+ return EDIT_KEY_NONE;
+ }
+}
+
+
+static enum edit_key_code esc_seq_to_key1_ctrl(char last)
+{
+ switch (last) {
+ case 'A':
+ return EDIT_KEY_CTRL_UP;
+ case 'B':
+ return EDIT_KEY_CTRL_DOWN;
+ case 'C':
+ return EDIT_KEY_CTRL_RIGHT;
+ case 'D':
+ return EDIT_KEY_CTRL_LEFT;
+ default:
+ return EDIT_KEY_NONE;
+ }
+}
+
+
+static enum edit_key_code esc_seq_to_key1(int param1, int param2, char last)
+{
+ /* ESC-[<param1>;<param2><last> */
+
+ if (param1 < 0 && param2 < 0)
+ return esc_seq_to_key1_no(last);
+
+ if (param1 == 1 && param2 == 2)
+ return esc_seq_to_key1_shift(last);
+
+ if (param1 == 1 && param2 == 3)
+ return esc_seq_to_key1_alt(last);
+
+ if (param1 == 1 && param2 == 4)
+ return esc_seq_to_key1_alt_shift(last);
+
+ if (param1 == 1 && param2 == 5)
+ return esc_seq_to_key1_ctrl(last);
+
+ if (param2 < 0) {
+ if (last != '~')
+ return EDIT_KEY_NONE;
+ switch (param1) {
+ case 2:
+ return EDIT_KEY_INSERT;
+ case 3:
+ return EDIT_KEY_DELETE;
+ case 5:
+ return EDIT_KEY_PAGE_UP;
+ case 6:
+ return EDIT_KEY_PAGE_DOWN;
+ case 15:
+ return EDIT_KEY_F5;
+ case 17:
+ return EDIT_KEY_F6;
+ case 18:
+ return EDIT_KEY_F7;
+ case 19:
+ return EDIT_KEY_F8;
+ case 20:
+ return EDIT_KEY_F9;
+ case 21:
+ return EDIT_KEY_F10;
+ case 23:
+ return EDIT_KEY_F11;
+ case 24:
+ return EDIT_KEY_F12;
+ }
+ }
+
+ return EDIT_KEY_NONE;
+}
+
+
+static enum edit_key_code esc_seq_to_key2(int param1, int param2, char last)
+{
+ /* ESC-O<param1>;<param2><last> */
+
+ if (param1 >= 0 || param2 >= 0)
+ return EDIT_KEY_NONE;
+
+ switch (last) {
+ case 'F':
+ return EDIT_KEY_END;
+ case 'H':
+ return EDIT_KEY_HOME;
+ case 'P':
+ return EDIT_KEY_F1;
+ case 'Q':
+ return EDIT_KEY_F2;
+ case 'R':
+ return EDIT_KEY_F3;
+ case 'S':
+ return EDIT_KEY_F4;
+ default:
+ return EDIT_KEY_NONE;
+ }
+}
+
+
+static enum edit_key_code esc_seq_to_key(char *seq)
+{
+ char last, *pos;
+ int param1 = -1, param2 = -1;
+ enum edit_key_code ret = EDIT_KEY_NONE;
+
+ last = '\0';
+ for (pos = seq; *pos; pos++)
+ last = *pos;
+
+ if (seq[1] >= '0' && seq[1] <= '9') {
+ param1 = atoi(&seq[1]);
+ pos = os_strchr(seq, ';');
+ if (pos)
+ param2 = atoi(pos + 1);
+ }
+
+ if (seq[0] == '[')
+ ret = esc_seq_to_key1(param1, param2, last);
+ else if (seq[0] == 'O')
+ ret = esc_seq_to_key2(param1, param2, last);
+
+ if (ret != EDIT_KEY_NONE)
+ return ret;
+
+ edit_clear_line();
+ printf("\rUnknown escape sequence '%s'\n", seq);
+ edit_redraw();
+ return EDIT_KEY_NONE;
+}
+
+
+static enum edit_key_code edit_read_key(int sock)
+{
+ int c;
+ unsigned char buf[1];
+ int res;
+ static int esc = -1;
+ static char esc_buf[7];
+
+ res = read(sock, buf, 1);
+ if (res < 0)
+ perror("read");
+ if (res <= 0)
+ return EDIT_KEY_EOF;
+
+ c = buf[0];
+
+ if (esc >= 0) {
+ if (c == 27 /* ESC */) {
+ esc = 0;
+ return EDIT_KEY_NONE;
+ }
+
+ if (esc == 6) {
+ show_esc_buf(esc_buf, c, 0);
+ esc = -1;
+ } else {
+ esc_buf[esc++] = c;
+ esc_buf[esc] = '\0';
+ }
+ }
+
+ if (esc == 1) {
+ if (esc_buf[0] != '[' && esc_buf[0] != 'O') {
+ show_esc_buf(esc_buf, c, 1);
+ esc = -1;
+ return EDIT_KEY_NONE;
+ } else
+ return EDIT_KEY_NONE; /* Escape sequence continues */
+ }
+
+ if (esc > 1) {
+ if ((c >= '0' && c <= '9') || c == ';')
+ return EDIT_KEY_NONE; /* Escape sequence continues */
+
+ if (c == '~' || (c >= 'A' && c <= 'Z')) {
+ esc = -1;
+ return esc_seq_to_key(esc_buf);
+ }
+
+ show_esc_buf(esc_buf, c, 2);
+ esc = -1;
+ return EDIT_KEY_NONE;
+ }
+
+ switch (c) {
+ case 1:
+ return EDIT_KEY_CTRL_A;
+ case 2:
+ return EDIT_KEY_CTRL_B;
+ case 4:
+ return EDIT_KEY_CTRL_D;
+ case 5:
+ return EDIT_KEY_CTRL_E;
+ case 6:
+ return EDIT_KEY_CTRL_F;
+ case 7:
+ return EDIT_KEY_CTRL_G;
+ case 8:
+ return EDIT_KEY_CTRL_H;
+ case 9:
+ return EDIT_KEY_TAB;
+ case 10:
+ return EDIT_KEY_CTRL_J;
+ case 13: /* CR */
+ return EDIT_KEY_ENTER;
+ case 11:
+ return EDIT_KEY_CTRL_K;
+ case 12:
+ return EDIT_KEY_CTRL_L;
+ case 14:
+ return EDIT_KEY_CTRL_N;
+ case 15:
+ return EDIT_KEY_CTRL_O;
+ case 16:
+ return EDIT_KEY_CTRL_P;
+ case 18:
+ return EDIT_KEY_CTRL_R;
+ case 20:
+ return EDIT_KEY_CTRL_T;
+ case 21:
+ return EDIT_KEY_CTRL_U;
+ case 22:
+ return EDIT_KEY_CTRL_V;
+ case 23:
+ return EDIT_KEY_CTRL_W;
+ case 27: /* ESC */
+ esc = 0;
+ return EDIT_KEY_NONE;
+ case 127:
+ return EDIT_KEY_BACKSPACE;
+ default:
+ return c;
+ }
+}
+
+
+static char search_buf[21];
+static int search_skip;
+
+static char * search_find(void)
+{
+ struct edit_history *h;
+ size_t len = os_strlen(search_buf);
+ int skip = search_skip;
+
+ if (len == 0)
+ return NULL;
+
+ dl_list_for_each(h, &history_list, struct edit_history, list) {
+ if (os_strstr(h->str, search_buf)) {
+ if (skip == 0)
+ return h->str;
+ skip--;
+ }
+ }
+
+ search_skip = 0;
+ return NULL;
+}
+
+
+static void search_redraw(void)
+{
+ char *match = search_find();
+ printf("\rsearch '%s': %s" CLEAR_END_LINE,
+ search_buf, match ? match : "");
+ printf("\rsearch '%s", search_buf);
+ fflush(stdout);
+}
+
+
+static void search_start(void)
+{
+ edit_clear_line();
+ search_buf[0] = '\0';
+ search_skip = 0;
+ search_redraw();
+}
+
+
+static void search_clear(void)
+{
+ search_redraw();
+ printf("\r" CLEAR_END_LINE);
+}
+
+
+static void search_stop(void)
+{
+ char *match = search_find();
+ search_buf[0] = '\0';
+ search_clear();
+ if (match) {
+ os_strlcpy(cmdbuf, match, CMD_BUF_LEN);
+ cmdbuf_len = os_strlen(cmdbuf);
+ cmdbuf_pos = cmdbuf_len;
+ }
+ edit_redraw();
+}
+
+
+static void search_cancel(void)
+{
+ search_buf[0] = '\0';
+ search_clear();
+ edit_redraw();
+}
+
+
+static void search_backspace(void)
+{
+ size_t len;
+ len = os_strlen(search_buf);
+ if (len == 0)
+ return;
+ search_buf[len - 1] = '\0';
+ search_skip = 0;
+ search_redraw();
+}
+
+
+static void search_next(void)
+{
+ search_skip++;
+ search_find();
+ search_redraw();
+}
+
+
+static void search_char(char c)
+{
+ size_t len;
+ len = os_strlen(search_buf);
+ if (len == sizeof(search_buf) - 1)
+ return;
+ search_buf[len] = c;
+ search_buf[len + 1] = '\0';
+ search_skip = 0;
+ search_redraw();
+}
+
+
+static enum edit_key_code search_key(enum edit_key_code c)
+{
+ switch (c) {
+ case EDIT_KEY_ENTER:
+ case EDIT_KEY_CTRL_J:
+ case EDIT_KEY_LEFT:
+ case EDIT_KEY_RIGHT:
+ case EDIT_KEY_HOME:
+ case EDIT_KEY_END:
+ case EDIT_KEY_CTRL_A:
+ case EDIT_KEY_CTRL_E:
+ search_stop();
+ return c;
+ case EDIT_KEY_DOWN:
+ case EDIT_KEY_UP:
+ search_cancel();
+ return EDIT_KEY_EOF;
+ case EDIT_KEY_CTRL_H:
+ case EDIT_KEY_BACKSPACE:
+ search_backspace();
+ break;
+ case EDIT_KEY_CTRL_R:
+ search_next();
+ break;
+ default:
+ if (c >= 32 && c <= 255)
+ search_char(c);
+ break;
+ }
+
+ return EDIT_KEY_NONE;
+}
+
+
+static void edit_read_char(int sock, void *eloop_ctx, void *sock_ctx)
+{
+ static int last_tab = 0;
+ static int search = 0;
+ enum edit_key_code c;
+
+ c = edit_read_key(sock);
+
+ if (search) {
+ c = search_key(c);
+ if (c == EDIT_KEY_NONE)
+ return;
+ search = 0;
+ if (c == EDIT_KEY_EOF)
+ return;
+ }
+
+ if (c != EDIT_KEY_TAB && c != EDIT_KEY_NONE)
+ last_tab = 0;
+
+ switch (c) {
+ case EDIT_KEY_NONE:
+ break;
+ case EDIT_KEY_EOF:
+ edit_eof_cb(edit_cb_ctx);
+ break;
+ case EDIT_KEY_TAB:
+ complete(last_tab);
+ last_tab = 1;
+ break;
+ case EDIT_KEY_UP:
+ case EDIT_KEY_CTRL_P:
+ history_prev();
+ break;
+ case EDIT_KEY_DOWN:
+ case EDIT_KEY_CTRL_N:
+ history_next();
+ break;
+ case EDIT_KEY_RIGHT:
+ case EDIT_KEY_CTRL_F:
+ move_right();
+ break;
+ case EDIT_KEY_LEFT:
+ case EDIT_KEY_CTRL_B:
+ move_left();
+ break;
+ case EDIT_KEY_CTRL_RIGHT:
+ move_word_right();
+ break;
+ case EDIT_KEY_CTRL_LEFT:
+ move_word_left();
+ break;
+ case EDIT_KEY_DELETE:
+ delete_current();
+ break;
+ case EDIT_KEY_END:
+ move_end();
+ break;
+ case EDIT_KEY_HOME:
+ case EDIT_KEY_CTRL_A:
+ move_start();
+ break;
+ case EDIT_KEY_F2:
+ history_debug_dump();
+ break;
+ case EDIT_KEY_CTRL_D:
+ if (cmdbuf_len > 0) {
+ delete_current();
+ return;
+ }
+ printf("\n");
+ edit_eof_cb(edit_cb_ctx);
+ break;
+ case EDIT_KEY_CTRL_E:
+ move_end();
+ break;
+ case EDIT_KEY_CTRL_H:
+ case EDIT_KEY_BACKSPACE:
+ delete_left();
+ break;
+ case EDIT_KEY_ENTER:
+ case EDIT_KEY_CTRL_J:
+ process_cmd();
+ break;
+ case EDIT_KEY_CTRL_K:
+ clear_right();
+ break;
+ case EDIT_KEY_CTRL_L:
+ edit_clear_line();
+ edit_redraw();
+ break;
+ case EDIT_KEY_CTRL_R:
+ search = 1;
+ search_start();
+ break;
+ case EDIT_KEY_CTRL_U:
+ clear_left();
+ break;
+ case EDIT_KEY_CTRL_W:
+ delete_word();
+ break;
+ default:
+ if (c >= 32 && c <= 255)
+ insert_char(c);
+ break;
+ }
+}
+
+
+int edit_init(void (*cmd_cb)(void *ctx, char *cmd),
+ void (*eof_cb)(void *ctx),
+ char ** (*completion_cb)(void *ctx, const char *cmd, int pos),
+ void *ctx, const char *history_file, const char *ps)
+{
+ currbuf[0] = '\0';
+ dl_list_init(&history_list);
+ history_curr = NULL;
+ if (history_file)
+ history_read(history_file);
+
+ edit_cb_ctx = ctx;
+ edit_cmd_cb = cmd_cb;
+ edit_eof_cb = eof_cb;
+ edit_completion_cb = completion_cb;
+
+ tcgetattr(STDIN_FILENO, &prevt);
+ newt = prevt;
+ newt.c_lflag &= ~(ICANON | ECHO);
+ tcsetattr(STDIN_FILENO, TCSANOW, &newt);
+
+ eloop_register_read_sock(STDIN_FILENO, edit_read_char, NULL, NULL);
+
+ ps2 = ps;
+ printf("%s> ", ps2 ? ps2 : "");
+ fflush(stdout);
+
+ return 0;
+}
+
+
+void edit_deinit(const char *history_file,
+ int (*filter_cb)(void *ctx, const char *cmd))
+{
+ struct edit_history *h;
+ if (history_file)
+ history_write(history_file, filter_cb);
+ while ((h = dl_list_first(&history_list, struct edit_history, list))) {
+ dl_list_del(&h->list);
+ os_free(h);
+ }
+ edit_clear_line();
+ putchar('\r');
+ fflush(stdout);
+ eloop_unregister_read_sock(STDIN_FILENO);
+ tcsetattr(STDIN_FILENO, TCSANOW, &prevt);
+}
+
+
+void edit_redraw(void)
+{
+ char tmp;
+ cmdbuf[cmdbuf_len] = '\0';
+ printf("\r%s> %s", ps2 ? ps2 : "", cmdbuf);
+ if (cmdbuf_pos != cmdbuf_len) {
+ tmp = cmdbuf[cmdbuf_pos];
+ cmdbuf[cmdbuf_pos] = '\0';
+ printf("\r%s> %s", ps2 ? ps2 : "", cmdbuf);
+ cmdbuf[cmdbuf_pos] = tmp;
+ }
+ fflush(stdout);
+}
projects / mech_eap.git / blobdiff