1423 lines
35 KiB
C
1423 lines
35 KiB
C
#include "private.h"
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#include <Elementary.h>
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#include "termpty.h"
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#include "termptyesc.h"
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#include "termptyops.h"
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#include "termptysave.h"
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#include "termio.h"
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#include <sys/types.h>
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#include <signal.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <termios.h>
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#if defined (__sun) || defined (__sun__)
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# include <stropts.h>
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#endif
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#include <assert.h>
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/* specific log domain to help debug only terminal code parser */
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int _termpty_log_dom = -1;
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#undef CRITICAL
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#undef ERR
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#undef WRN
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#undef INF
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#undef DBG
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#define CRITICAL(...) EINA_LOG_DOM_CRIT(_termpty_log_dom, __VA_ARGS__)
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#define ERR(...) EINA_LOG_DOM_ERR(_termpty_log_dom, __VA_ARGS__)
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#define WRN(...) EINA_LOG_DOM_WARN(_termpty_log_dom, __VA_ARGS__)
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#define INF(...) EINA_LOG_DOM_INFO(_termpty_log_dom, __VA_ARGS__)
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#define DBG(...) EINA_LOG_DOM_DBG(_termpty_log_dom, __VA_ARGS__)
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void
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termpty_init(void)
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{
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if (_termpty_log_dom >= 0) return;
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_termpty_log_dom = eina_log_domain_register("termpty", NULL);
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if (_termpty_log_dom < 0)
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EINA_LOG_CRIT("Could not create logging domain '%s'.", "termpty");
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}
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void
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termpty_shutdown(void)
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{
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if (_termpty_log_dom < 0) return;
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eina_log_domain_unregister(_termpty_log_dom);
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_termpty_log_dom = -1;
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}
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void
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termpty_handle_buf(Termpty *ty, const Eina_Unicode *codepoints, int len)
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{
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Eina_Unicode *c, *ce, *b;
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int n, bytes;
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c = (Eina_Unicode *)codepoints;
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ce = &(c[len]);
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if (ty->buf)
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{
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bytes = (ty->buflen + len + 1) * sizeof(int);
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b = realloc(ty->buf, bytes);
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if (!b)
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{
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ERR(_("memerr: %s"), strerror(errno));
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return;
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}
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DBG("realloc add %i + %i", (int)(ty->buflen * sizeof(int)), (int)(len * sizeof(int)));
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bytes = len * sizeof(Eina_Unicode);
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memcpy(&(b[ty->buflen]), codepoints, bytes);
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ty->buf = b;
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ty->buflen += len;
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ty->buf[ty->buflen] = 0;
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c = ty->buf;
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ce = c + ty->buflen;
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while (c < ce)
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{
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n = termpty_handle_seq(ty, c, ce);
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if (n == 0)
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{
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Eina_Unicode *tmp = ty->buf;
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ty->buf = NULL;
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ty->buflen = 0;
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bytes = ((char *)ce - (char *)c) + sizeof(Eina_Unicode);
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DBG("malloc till %i", (int)(bytes - sizeof(Eina_Unicode)));
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ty->buf = malloc(bytes);
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if (!ty->buf)
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{
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ERR(_("memerr: %s"), strerror(errno));
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return;
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}
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bytes = (char *)ce - (char *)c;
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memcpy(ty->buf, c, bytes);
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ty->buflen = bytes / sizeof(Eina_Unicode);
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ty->buf[ty->buflen] = 0;
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free(tmp);
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break;
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}
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c += n;
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}
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if (c == ce)
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{
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if (ty->buf)
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{
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free(ty->buf);
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ty->buf = NULL;
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}
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ty->buflen = 0;
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}
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}
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else
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{
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while (c < ce)
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{
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n = termpty_handle_seq(ty, c, ce);
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if (n == 0)
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{
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bytes = ((char *)ce - (char *)c) + sizeof(Eina_Unicode);
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ty->buf = malloc(bytes);
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DBG("malloc %i", (int)(bytes - sizeof(Eina_Unicode)));
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if (!ty->buf)
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{
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ERR(_("memerr: %s"), strerror(errno));
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}
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else
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{
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bytes = (char *)ce - (char *)c;
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memcpy(ty->buf, c, bytes);
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ty->buflen = bytes / sizeof(Eina_Unicode);
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ty->buf[ty->buflen] = 0;
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}
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break;
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}
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c += n;
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}
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}
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}
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static void
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_pty_size(Termpty *ty)
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{
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struct winsize sz;
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sz.ws_col = ty->w;
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sz.ws_row = ty->h;
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sz.ws_xpixel = 0;
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sz.ws_ypixel = 0;
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if (ioctl(ty->fd, TIOCSWINSZ, &sz) < 0)
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ERR(_("Size set ioctl failed: %s"), strerror(errno));
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}
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static Eina_Bool
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_cb_exe_exit(void *data, int type EINA_UNUSED, void *event)
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{
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Ecore_Exe_Event_Del *ev = event;
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Termpty *ty = data;
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if (ev->pid != ty->pid) return ECORE_CALLBACK_PASS_ON;
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ty->exit_code = ev->exit_code;
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ty->pid = -1;
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if (ty->hand_exe_exit) ecore_event_handler_del(ty->hand_exe_exit);
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ty->hand_exe_exit = NULL;
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if (ty->hand_fd) ecore_main_fd_handler_del(ty->hand_fd);
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ty->hand_fd = NULL;
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if (ty->fd >= 0) close(ty->fd);
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ty->fd = -1;
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if (ty->slavefd >= 0) close(ty->slavefd);
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ty->slavefd = -1;
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if (ty->cb.exited.func) ty->cb.exited.func(ty->cb.exited.data);
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return ECORE_CALLBACK_PASS_ON;
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}
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static Eina_Bool
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_cb_fd_read(void *data, Ecore_Fd_Handler *fd_handler)
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{
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Termpty *ty = data;
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char buf[4097];
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Eina_Unicode codepoint[4097];
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int len, i, j, k, reads;
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if (ecore_main_fd_handler_active_get(fd_handler, ECORE_FD_ERROR))
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{
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ERR("error while reading from tty slave fd");
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return ECORE_CALLBACK_CANCEL;
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}
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// read up to 64 * 4096 bytes
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for (reads = 0; reads < 64; reads++)
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{
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char *rbuf = buf;
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len = sizeof(buf) - 1;
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for (i = 0; i < (int)sizeof(ty->oldbuf) && ty->oldbuf[i] & 0x80; i++)
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{
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*rbuf = ty->oldbuf[i];
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rbuf++;
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len--;
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}
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len = read(ty->fd, rbuf, len);
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if (len < 0 && errno != EAGAIN)
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{
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ERR("error while reading from tty slave fd");
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break;
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}
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if (len <= 0) break;
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for (i = 0; i < (int)sizeof(ty->oldbuf); i++)
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ty->oldbuf[i] = 0;
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len += rbuf - buf;
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/*
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printf(" I: ");
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int jj;
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for (jj = 0; jj < len; jj++)
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{
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if ((buf[jj] < ' ') || (buf[jj] >= 0x7f))
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printf("\033[33m%02x\033[0m", (unsigned char)buf[jj]);
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else
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printf("%c", buf[jj]);
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}
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printf("\n");
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*/
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buf[len] = 0;
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// convert UTF8 to codepoint integers
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j = 0;
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for (i = 0; i < len;)
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{
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int g = 0, prev_i = i;
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if (buf[i])
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{
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#if (EINA_VERSION_MAJOR > 1) || (EINA_VERSION_MINOR >= 8)
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g = eina_unicode_utf8_next_get(buf, &i);
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if ((0xdc80 <= g) && (g <= 0xdcff) &&
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(len - prev_i) <= (int)sizeof(ty->oldbuf))
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#else
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i = evas_string_char_next_get(buf, i, &g);
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if (i < 0 &&
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(len - prev_i) <= (int)sizeof(ty->oldbuf))
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#endif
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{
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for (k = 0;
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(k < (int)sizeof(ty->oldbuf)) &&
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(k < (len - prev_i));
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k++)
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{
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ty->oldbuf[k] = buf[prev_i+k];
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}
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DBG("failure at %d/%d/%d", prev_i, i, len);
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break;
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}
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}
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else
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{
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g = 0;
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i++;
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}
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codepoint[j] = g;
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j++;
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}
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codepoint[j] = 0;
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// DBG("---------------- handle buf %i", j);
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termpty_handle_buf(ty, codepoint, j);
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}
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if (ty->cb.change.func) ty->cb.change.func(ty->cb.change.data);
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#ifdef ENABLE_FUZZING
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if (len <= 0)
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{
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ty->exit_code = 0;
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ty->pid = -1;
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if (ty->hand_exe_exit) ecore_event_handler_del(ty->hand_exe_exit);
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ty->hand_exe_exit = NULL;
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if (ty->hand_fd) ecore_main_fd_handler_del(ty->hand_fd);
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ty->hand_fd = NULL;
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ty->fd = -1;
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ty->slavefd = -1;
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if (ty->cb.exited.func)
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ty->cb.exited.func(ty->cb.exited.data);
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return ECORE_CALLBACK_CANCEL;
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}
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#endif
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return EINA_TRUE;
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}
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static void
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_limit_coord(Termpty *ty)
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{
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TERMPTY_RESTRICT_FIELD(ty->termstate.had_cr_x, 0, ty->w);
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TERMPTY_RESTRICT_FIELD(ty->termstate.had_cr_y, 0, ty->h);
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TERMPTY_RESTRICT_FIELD(ty->cursor_state.cx, 0, ty->w);
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TERMPTY_RESTRICT_FIELD(ty->cursor_state.cy, 0, ty->h);
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TERMPTY_RESTRICT_FIELD(ty->cursor_save.cx, 0, ty->w);
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TERMPTY_RESTRICT_FIELD(ty->cursor_save.cy, 0, ty->h);
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}
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Termpty *
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termpty_new(const char *cmd, Eina_Bool login_shell, const char *cd,
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int w, int h, int backscroll, Eina_Bool xterm_256color,
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Eina_Bool erase_is_del, const char *emotion_mod)
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{
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Termpty *ty;
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const char *pty;
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int mode;
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struct termios t;
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Eina_Bool needs_shell;
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const char *shell = NULL;
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const char *args[4] = {NULL, NULL, NULL, NULL};
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const char *arg0;
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ty = calloc(1, sizeof(Termpty));
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if (!ty) return NULL;
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ty->w = w;
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ty->h = h;
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ty->backsize = backscroll;
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termpty_reset_state(ty);
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ty->screen = calloc(1, sizeof(Termcell) * ty->w * ty->h);
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if (!ty->screen)
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{
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ERR("Allocation of term %s %ix%i failed: %s",
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"screen", ty->w, ty->h, strerror(errno));
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goto err;
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}
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ty->screen2 = calloc(1, sizeof(Termcell) * ty->w * ty->h);
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if (!ty->screen2)
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{
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ERR("Allocation of term %s %ix%i failed: %s",
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"screen2", ty->w, ty->h, strerror(errno));
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goto err;
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}
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ty->circular_offset = 0;
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#ifdef ENABLE_FUZZING
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ty->fd = STDIN_FILENO;
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ty->hand_fd = ecore_main_fd_handler_add(ty->fd,
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ECORE_FD_READ | ECORE_FD_ERROR,
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_cb_fd_read, ty,
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NULL, NULL);
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_pty_size(ty);
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termpty_save_register(ty);
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return ty;
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#endif
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needs_shell = ((!cmd) ||
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(strpbrk(cmd, " |&;<>()$`\\\"'*?#") != NULL));
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DBG("cmd='%s' needs_shell=%u", cmd ? cmd : "", needs_shell);
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if (needs_shell)
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{
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shell = getenv("SHELL");
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if (!shell)
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{
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uid_t uid = getuid();
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struct passwd *pw = getpwuid(uid);
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if (pw) shell = pw->pw_shell;
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}
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if (!shell)
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{
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WRN(_("Could not find shell, falling back to %s"), "/bin/sh");
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shell = "/bin/sh";
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}
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}
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if (!needs_shell)
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args[0] = cmd;
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else
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{
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args[0] = shell;
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if (cmd)
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{
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args[1] = "-c";
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args[2] = cmd;
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}
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}
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arg0 = strrchr(args[0], '/');
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if (!arg0) arg0 = args[0];
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else arg0++;
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ty->prop.title = eina_stringshare_add(arg0);
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ty->fd = posix_openpt(O_RDWR | O_NOCTTY);
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if (ty->fd < 0)
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{
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ERR(_("Function %s failed: %s"), "posix_openpt()", strerror(errno));
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goto err;
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}
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if (grantpt(ty->fd) != 0)
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{
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WRN(_("Function %s failed: %s"), "grantpt()", strerror(errno));
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}
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if (unlockpt(ty->fd) != 0)
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{
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ERR(_("Function %s failed: %s"), "unlockpt()", strerror(errno));
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goto err;
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}
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pty = ptsname(ty->fd);
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ty->slavefd = open(pty, O_RDWR | O_NOCTTY);
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if (ty->slavefd < 0)
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{
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ERR(_("open() of pty '%s' failed: %s"), pty, strerror(errno));
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goto err;
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}
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mode = fcntl(ty->fd, F_GETFL, 0);
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if (mode < 0)
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{
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ERR(_("fcntl() on pty '%s' failed: %s"), pty, strerror(errno));
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goto err;
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}
|
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if (!(mode & O_NDELAY))
|
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if (fcntl(ty->fd, F_SETFL, mode | O_NDELAY))
|
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{
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ERR(_("fcntl() on pty '%s' failed: %s"), pty, strerror(errno));
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goto err;
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}
|
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|
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#if defined (__sun) || defined (__sun__)
|
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if (ioctl(ty->slavefd, I_PUSH, "ptem") < 0
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|| ioctl(ty->slavefd, I_PUSH, "ldterm") < 0
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|| ioctl(ty->slavefd, I_PUSH, "ttcompat") < 0)
|
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{
|
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ERR(_("ioctl() on pty '%s' failed: %s"), pty, strerror(errno));
|
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goto err;
|
|
}
|
|
# endif
|
|
|
|
if (tcgetattr(ty->slavefd, &t) < 0)
|
|
{
|
|
ERR("unable to tcgetattr: %s", strerror(errno));
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goto err;
|
|
}
|
|
t.c_cc[VERASE] = (erase_is_del) ? 0x7f : 0x8;
|
|
#ifdef IUTF8
|
|
t.c_iflag |= IUTF8;
|
|
#endif
|
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if (tcsetattr(ty->slavefd, TCSANOW, &t) < 0)
|
|
{
|
|
ERR("unable to tcsetattr: %s", strerror(errno));
|
|
goto err;
|
|
}
|
|
|
|
ty->hand_exe_exit = ecore_event_handler_add(ECORE_EXE_EVENT_DEL,
|
|
_cb_exe_exit, ty);
|
|
if (!ty->hand_exe_exit)
|
|
{
|
|
ERR("event handler add failed");
|
|
goto err;
|
|
}
|
|
ty->pid = fork();
|
|
if (ty->pid < 0)
|
|
{
|
|
ERR("unable to fork: %s", strerror(errno));
|
|
goto err;
|
|
}
|
|
if (!ty->pid)
|
|
{
|
|
int i;
|
|
char buf[256];
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|
|
|
if (cd)
|
|
{
|
|
if (chdir(cd) != 0)
|
|
{
|
|
ERR(_("Could not change current directory to '%s': %s"),
|
|
cd, strerror(errno));
|
|
exit(127);
|
|
}
|
|
}
|
|
|
|
|
|
#define NC(x) (args[x] != NULL ? args[x] : "")
|
|
DBG("exec %s %s %s %s", NC(0), NC(1), NC(2), NC(3));
|
|
#undef NC
|
|
|
|
for (i = 0; i < 100; i++)
|
|
{
|
|
if (i != ty->slavefd) close(i);
|
|
}
|
|
setsid();
|
|
|
|
dup2(ty->slavefd, 0);
|
|
dup2(ty->slavefd, 1);
|
|
dup2(ty->slavefd, 2);
|
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|
|
if (ioctl(ty->slavefd, TIOCSCTTY, NULL) < 0) exit(1);
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|
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close(ty->fd);
|
|
close(ty->slavefd);
|
|
|
|
/* TODO: should we reset signals here? */
|
|
|
|
/* pretend to be xterm */
|
|
if (xterm_256color)
|
|
{
|
|
putenv("TERM=xterm-256color");
|
|
}
|
|
else
|
|
{
|
|
putenv("TERM=xterm");
|
|
}
|
|
putenv("XTERM_256_COLORS=1");
|
|
if (emotion_mod)
|
|
{
|
|
snprintf(buf, sizeof(buf), "EMOTION_ENGINE=%s", emotion_mod);
|
|
putenv(buf);
|
|
}
|
|
if (!login_shell)
|
|
execvp(args[0], (char *const *)args);
|
|
else
|
|
{
|
|
char *cmdfile, *cmd0;
|
|
|
|
cmdfile = (char *)args[0];
|
|
cmd0 = alloca(strlen(cmdfile) + 2);
|
|
cmd0[0] = '-';
|
|
strcpy(cmd0 + 1, cmdfile);
|
|
args[0] = cmd0;
|
|
execvp(cmdfile, (char *const *)args);
|
|
}
|
|
exit(127); /* same as system() for failed commands */
|
|
}
|
|
ty->hand_fd = ecore_main_fd_handler_add(ty->fd, ECORE_FD_READ,
|
|
_cb_fd_read, ty,
|
|
NULL, NULL);
|
|
close(ty->slavefd);
|
|
ty->slavefd = -1;
|
|
_pty_size(ty);
|
|
termpty_save_register(ty);
|
|
return ty;
|
|
err:
|
|
free(ty->screen);
|
|
free(ty->screen2);
|
|
if (ty->fd >= 0) close(ty->fd);
|
|
if (ty->slavefd >= 0) close(ty->slavefd);
|
|
free(ty);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
termpty_free(Termpty *ty)
|
|
{
|
|
Termexp *ex;
|
|
|
|
termpty_save_unregister(ty);
|
|
EINA_LIST_FREE(ty->block.expecting, ex) free(ex);
|
|
if (ty->block.blocks) eina_hash_free(ty->block.blocks);
|
|
if (ty->block.chid_map) eina_hash_free(ty->block.chid_map);
|
|
if (ty->block.active) eina_list_free(ty->block.active);
|
|
if (ty->fd >= 0) close(ty->fd);
|
|
if (ty->slavefd >= 0) close(ty->slavefd);
|
|
if (ty->pid >= 0)
|
|
{
|
|
int i;
|
|
|
|
// in case someone stopped the child - cont it
|
|
kill(ty->pid, SIGCONT);
|
|
// sighup the shell
|
|
kill(ty->pid, SIGHUP);
|
|
// try 400 time (sleeping for 1ms) to check for death of child
|
|
for (i = 0; i < 400; i++)
|
|
{
|
|
int status = 0;
|
|
|
|
// poll exit of child pid
|
|
if (waitpid(ty->pid, &status, WNOHANG) == ty->pid)
|
|
{
|
|
// if child exited - break loop and mark pid as done
|
|
ty->pid = -1;
|
|
break;
|
|
}
|
|
// after 100ms set sigint
|
|
if (i == 100) kill(ty->pid, SIGINT);
|
|
// after 200ms send term signal
|
|
else if (i == 200) kill(ty->pid, SIGTERM);
|
|
// after 300ms send quit signal
|
|
else if (i == 300) kill(ty->pid, SIGQUIT);
|
|
usleep(1000); // sleep 1ms
|
|
}
|
|
// so 400ms and child not gone - KILL!
|
|
if (ty->pid >= 0)
|
|
{
|
|
kill(ty->pid, SIGKILL);
|
|
ty->pid = -1;
|
|
}
|
|
}
|
|
if (ty->hand_exe_exit) ecore_event_handler_del(ty->hand_exe_exit);
|
|
if (ty->hand_fd) ecore_main_fd_handler_del(ty->hand_fd);
|
|
if (ty->prop.title) eina_stringshare_del(ty->prop.title);
|
|
if (ty->prop.user_title) eina_stringshare_del(ty->prop.user_title);
|
|
if (ty->prop.icon) eina_stringshare_del(ty->prop.icon);
|
|
if (ty->back)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < ty->backsize; i++)
|
|
termpty_save_free(&ty->back[i]);
|
|
free(ty->back);
|
|
}
|
|
free(ty->screen);
|
|
free(ty->screen2);
|
|
free(ty->buf);
|
|
free(ty);
|
|
}
|
|
|
|
static Eina_Bool
|
|
_termpty_cell_is_empty(const Termcell *cell)
|
|
{
|
|
if ((cell->codepoint != 0) &&
|
|
(!cell->att.invisible) &&
|
|
(cell->att.fg != COL_INVIS))
|
|
{
|
|
return EINA_FALSE;
|
|
}
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
static Eina_Bool
|
|
_termpty_line_is_empty(const Termcell *cells, ssize_t nb_cells)
|
|
{
|
|
ssize_t len;
|
|
|
|
for (len = nb_cells - 1; len >= 0; len--)
|
|
{
|
|
const Termcell *cell = cells + len;
|
|
|
|
if (!_termpty_cell_is_empty(cell))
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
return EINA_TRUE;
|
|
}
|
|
|
|
|
|
ssize_t
|
|
termpty_line_length(const Termcell *cells, ssize_t nb_cells)
|
|
{
|
|
ssize_t len = nb_cells;
|
|
|
|
if (!cells)
|
|
return 0;
|
|
|
|
for (len = nb_cells - 1; len >= 0; len--)
|
|
{
|
|
const Termcell *cell = cells + len;
|
|
|
|
if (!_termpty_cell_is_empty(cell))
|
|
return len + 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define BACKLOG_ROW_GET(Ty, Y) \
|
|
(&Ty->back[(Ty->backsize + ty->backpos - ((Y) - 1 )) % Ty->backsize])
|
|
|
|
|
|
#if 0
|
|
static void
|
|
verify_beacon(Termpty *ty)
|
|
{
|
|
Termsave *ts;
|
|
int nb_lines;
|
|
int backlog_y = ty->backlog_beacon.backlog_y;
|
|
int screen_y = ty->backlog_beacon.screen_y;
|
|
|
|
assert(ty->backlog_beacon.screen_y >= 0);
|
|
assert(ty->backlog_beacon.backlog_y >= 0);
|
|
assert(ty->backlog_beacon.screen_y >= ty->backlog_beacon.backlog_y);
|
|
|
|
//ERR("FROM screen_y:%d backlog_y:%d",
|
|
// screen_y, backlog_y);
|
|
while (backlog_y > 0)
|
|
{
|
|
ts = BACKLOG_ROW_GET(ty, backlog_y);
|
|
if (!ts->cells)
|
|
{
|
|
ERR("went too far: screen_y:%d backlog_y:%d",
|
|
screen_y, backlog_y);
|
|
return;
|
|
}
|
|
|
|
nb_lines = (ts->w == 0) ? 1 : (ts->w + ty->w - 1) / ty->w;
|
|
screen_y -= nb_lines;
|
|
backlog_y--;
|
|
//ERR("nb_lines:%d screen_y:%d backlog_y:%d ts->w:%d ty->w:%d",
|
|
// nb_lines, screen_y, backlog_y, ts->w, ty->w);
|
|
assert(screen_y >= backlog_y);
|
|
|
|
}
|
|
//ERR("TO screen_y:%d backlog_y:%d",
|
|
// screen_y, backlog_y);
|
|
assert (backlog_y == 0);
|
|
assert (screen_y == 0);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
_backlog_remove_latest_nolock(Termpty *ty)
|
|
{
|
|
Termsave *ts;
|
|
if (ty->backsize <= 0)
|
|
return;
|
|
ts = BACKLOG_ROW_GET(ty, 1);
|
|
|
|
if (ty->backpos == 0)
|
|
ty->backpos = ty->backsize - 1;
|
|
else
|
|
ty->backpos--;
|
|
|
|
/* reset beacon */
|
|
ty->backlog_beacon.screen_y = 0;
|
|
ty->backlog_beacon.backlog_y = 0;
|
|
|
|
termpty_save_free(ts);
|
|
}
|
|
|
|
|
|
void
|
|
termpty_text_save_top(Termpty *ty, Termcell *cells, ssize_t w_max)
|
|
{
|
|
Termsave *ts;
|
|
ssize_t w;
|
|
|
|
if (ty->backsize <= 0)
|
|
return;
|
|
assert(ty->back);
|
|
|
|
termpty_backlog_lock();
|
|
|
|
w = termpty_line_length(cells, w_max);
|
|
if (ty->backsize >= 1)
|
|
{
|
|
ts = BACKLOG_ROW_GET(ty, 1);
|
|
if (!ts->cells)
|
|
goto add_new_ts;
|
|
/* TODO: RESIZE uncompress ? */
|
|
if (ts->w && ts->cells[ts->w - 1].att.autowrapped)
|
|
{
|
|
int old_len = ts->w;
|
|
termpty_save_expand(ts, cells, w);
|
|
ty->backlog_beacon.screen_y += (ts->w + ty->w - 1) / ty->w
|
|
- (old_len + ty->w - 1) / ty->w;
|
|
return;
|
|
}
|
|
}
|
|
|
|
add_new_ts:
|
|
ts = BACKLOG_ROW_GET(ty, 0);
|
|
ts = termpty_save_new(ts, w);
|
|
if (!ts)
|
|
return;
|
|
termpty_cell_copy(ty, cells, ts->cells, w);
|
|
ty->backpos++;
|
|
if (ty->backpos >= ty->backsize)
|
|
ty->backpos = 0;
|
|
termpty_backlog_unlock();
|
|
|
|
ty->backlog_beacon.screen_y++;
|
|
ty->backlog_beacon.backlog_y++;
|
|
if (ty->backlog_beacon.backlog_y >= (int)ty->backsize)
|
|
{
|
|
ty->backlog_beacon.screen_y = 0;
|
|
ty->backlog_beacon.backlog_y = 0;
|
|
}
|
|
}
|
|
|
|
|
|
ssize_t
|
|
termpty_row_length(Termpty *ty, int y)
|
|
{
|
|
ssize_t wret;
|
|
Termcell *cells = termpty_cellrow_get(ty, y, &wret);
|
|
|
|
if (!cells)
|
|
return 0;
|
|
if (y >= 0)
|
|
return termpty_line_length(cells, ty->w);
|
|
return wret;
|
|
}
|
|
|
|
ssize_t
|
|
termpty_backlog_length(Termpty *ty)
|
|
{
|
|
int backlog_y = ty->backlog_beacon.backlog_y;
|
|
int screen_y = ty->backlog_beacon.screen_y;
|
|
|
|
if (!ty->backsize)
|
|
return 0;
|
|
|
|
while (42)
|
|
{
|
|
int nb_lines;
|
|
Termsave *ts;
|
|
|
|
ts = BACKLOG_ROW_GET(ty, backlog_y);
|
|
if (!ts->cells || backlog_y >= (int)ty->backsize)
|
|
return ty->backlog_beacon.screen_y;
|
|
|
|
nb_lines = (ts->w == 0) ? 1 : (ts->w + ty->w - 1) / ty->w;
|
|
ty->backlog_beacon.screen_y = screen_y;
|
|
ty->backlog_beacon.backlog_y = backlog_y;
|
|
screen_y += nb_lines;
|
|
backlog_y++;
|
|
}
|
|
}
|
|
|
|
void
|
|
termpty_backscroll_adjust(Termpty *ty, int *scroll)
|
|
{
|
|
int backlog_y = ty->backlog_beacon.backlog_y;
|
|
int screen_y = ty->backlog_beacon.screen_y;
|
|
|
|
if (!ty->backsize || *scroll <= 0)
|
|
{
|
|
*scroll = 0;
|
|
return;
|
|
}
|
|
if (*scroll < screen_y)
|
|
return;
|
|
|
|
while (42)
|
|
{
|
|
int nb_lines;
|
|
Termsave *ts;
|
|
|
|
ts = BACKLOG_ROW_GET(ty, backlog_y);
|
|
if (*scroll <= screen_y)
|
|
{
|
|
return;
|
|
}
|
|
if (!ts->cells || backlog_y >= (int)ty->backsize)
|
|
{
|
|
*scroll = ty->backlog_beacon.screen_y;
|
|
return;
|
|
}
|
|
|
|
nb_lines = (ts->w == 0) ? 1 : (ts->w + ty->w - 1) / ty->w;
|
|
ty->backlog_beacon.screen_y = screen_y;
|
|
ty->backlog_beacon.backlog_y = backlog_y;
|
|
screen_y += nb_lines;
|
|
backlog_y++;
|
|
}
|
|
}
|
|
|
|
static Termcell*
|
|
_termpty_cellrow_from_beacon_get(Termpty *ty, int requested_y, ssize_t *wret)
|
|
{
|
|
int backlog_y = ty->backlog_beacon.backlog_y;
|
|
int screen_y = ty->backlog_beacon.screen_y;
|
|
Eina_Bool going_forward = EINA_TRUE;
|
|
|
|
requested_y = -requested_y;
|
|
|
|
/* check if going from 0,0 is faster than using the beacon */
|
|
if (screen_y - requested_y > requested_y)
|
|
{
|
|
backlog_y = 1;
|
|
screen_y = 1;
|
|
}
|
|
while (42) {
|
|
Termsave *ts;
|
|
int nb_lines;
|
|
|
|
ts = BACKLOG_ROW_GET(ty, backlog_y);
|
|
if (!ts->cells)
|
|
return NULL;
|
|
nb_lines = (ts->w == 0) ? 1 : (ts->w + ty->w - 1) / ty->w;
|
|
if (!going_forward) {
|
|
screen_y -= nb_lines;
|
|
}
|
|
|
|
if ((screen_y <= requested_y) && (requested_y < screen_y + nb_lines))
|
|
{
|
|
int delta = screen_y + nb_lines - 1 - requested_y;
|
|
*wret = ts->w - delta * ty->w;
|
|
if (*wret > ts->w)
|
|
*wret = ts->w;
|
|
ty->backlog_beacon.screen_y = screen_y;
|
|
ty->backlog_beacon.backlog_y = backlog_y;
|
|
return &ts->cells[delta * ty->w];
|
|
}
|
|
|
|
if (requested_y > screen_y)
|
|
{
|
|
screen_y += nb_lines;
|
|
backlog_y++;
|
|
}
|
|
else
|
|
{
|
|
backlog_y--;
|
|
going_forward = EINA_FALSE;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
Termcell *
|
|
termpty_cellrow_get(Termpty *ty, int y_requested, ssize_t *wret)
|
|
{
|
|
if (y_requested >= 0)
|
|
{
|
|
if (y_requested >= ty->h)
|
|
return NULL;
|
|
*wret = ty->w;
|
|
return &(TERMPTY_SCREEN(ty, 0, y_requested));
|
|
}
|
|
if (!ty->back)
|
|
return NULL;
|
|
|
|
return _termpty_cellrow_from_beacon_get(ty, y_requested, wret);
|
|
|
|
}
|
|
|
|
void
|
|
termpty_write(Termpty *ty, const char *input, int len)
|
|
{
|
|
int fd = ty->fd;
|
|
|
|
#ifdef ENABLE_FUZZING
|
|
fd = ty->fd_dev_null;
|
|
#endif
|
|
if (fd < 0) return;
|
|
if (write(fd, input, len) < 0)
|
|
ERR(_("Could not write to file descriptor %d: %s"),
|
|
fd, strerror(errno));
|
|
}
|
|
|
|
struct screen_info
|
|
{
|
|
Termcell *screen;
|
|
int w;
|
|
int h;
|
|
int x;
|
|
int y;
|
|
int cy;
|
|
int cx;
|
|
int circular_offset;
|
|
};
|
|
|
|
#define SCREEN_INFO_GET_CELLS(Tsi, X, Y) \
|
|
Tsi->screen[X + (((Y + Tsi->circular_offset) % Tsi->h) * Tsi->w)]
|
|
|
|
static void
|
|
_check_screen_info(Termpty *ty, struct screen_info *si)
|
|
{
|
|
if (si->y >= si->h)
|
|
{
|
|
Termcell *cells = &SCREEN_INFO_GET_CELLS(si, 0, 0);
|
|
|
|
si->y--;
|
|
termpty_text_save_top(ty, cells, si->w);
|
|
termpty_cells_clear(ty, cells, si->w);
|
|
|
|
si->circular_offset++;
|
|
if (si->circular_offset >= si->h)
|
|
si->circular_offset = 0;
|
|
|
|
si->cy--;
|
|
}
|
|
}
|
|
|
|
static void
|
|
_termpty_line_rewrap(Termpty *ty, Termcell *src_cells, int len,
|
|
struct screen_info *si,
|
|
Eina_Bool set_cursor)
|
|
{
|
|
int autowrapped;
|
|
|
|
if (len == 0)
|
|
{
|
|
if (set_cursor)
|
|
{
|
|
si->cy = si->y;
|
|
si->cx = 0;
|
|
}
|
|
si->y++;
|
|
si->x = 0;
|
|
_check_screen_info(ty, si);
|
|
return;
|
|
}
|
|
|
|
autowrapped = src_cells[len-1].att.autowrapped;
|
|
src_cells[len-1].att.autowrapped = 0;
|
|
|
|
while (len > 0)
|
|
{
|
|
int copy_width = MIN(len, si->w - si->x);
|
|
Termcell *dst_cells = &SCREEN_INFO_GET_CELLS(si, si->x, si->y);
|
|
|
|
termpty_cell_copy(ty,
|
|
/*src*/ src_cells,
|
|
/*dst*/ dst_cells,
|
|
copy_width);
|
|
if (set_cursor)
|
|
{
|
|
if (ty->cursor_state.cx <= copy_width)
|
|
{
|
|
si->cx = ty->cursor_state.cx;
|
|
si->cy = si->y;
|
|
}
|
|
else
|
|
{
|
|
ty->cursor_state.cx -= copy_width;
|
|
}
|
|
}
|
|
len -= copy_width;
|
|
si->x += copy_width;
|
|
src_cells += copy_width;
|
|
if (si->x >= si->w)
|
|
{
|
|
if ((len > 0) || (len == 0 && autowrapped))
|
|
{
|
|
dst_cells = &SCREEN_INFO_GET_CELLS(si, 0, si->y);
|
|
dst_cells[si->w - 1].att.autowrapped = 1;
|
|
}
|
|
si->y++;
|
|
si->x = 0;
|
|
}
|
|
_check_screen_info(ty, si);
|
|
}
|
|
if (!autowrapped && si->x != 0)
|
|
{
|
|
si->y++;
|
|
si->x = 0;
|
|
_check_screen_info(ty, si);
|
|
}
|
|
}
|
|
|
|
void
|
|
termpty_resize(Termpty *ty, int new_w, int new_h)
|
|
{
|
|
Termcell *new_screen = NULL;
|
|
int old_y = 0,
|
|
old_w = ty->w,
|
|
old_h = ty->h,
|
|
effective_old_h;
|
|
int altbuf = 0;
|
|
struct screen_info new_si = {.screen = NULL};
|
|
|
|
if ((ty->w == new_w) && (ty->h == new_h)) return;
|
|
if ((new_w == new_h) && (new_w == 1)) return; // FIXME: something weird is
|
|
// going on at term init
|
|
|
|
termpty_backlog_lock();
|
|
|
|
if (ty->altbuf)
|
|
{
|
|
termpty_screen_swap(ty);
|
|
altbuf = 1;
|
|
}
|
|
|
|
new_screen = calloc(1, sizeof(Termcell) * new_w * new_h);
|
|
if (!new_screen)
|
|
goto bad;
|
|
free(ty->screen2);
|
|
ty->screen2 = calloc(1, sizeof(Termcell) * new_w * new_h);
|
|
if (!ty->screen2)
|
|
goto bad;
|
|
|
|
new_si.screen = new_screen;
|
|
new_si.w = new_w;
|
|
new_si.h = new_h;
|
|
|
|
/* compute the effective height on the old screen */
|
|
effective_old_h = 0;
|
|
for (old_y = old_h -1; old_y >= 0; old_y--)
|
|
{
|
|
Termcell *cells = &(TERMPTY_SCREEN(ty, 0, old_y));
|
|
if (!_termpty_line_is_empty(cells, old_w))
|
|
{
|
|
effective_old_h = old_y + 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (effective_old_h <= ty->cursor_state.cy)
|
|
effective_old_h = ty->cursor_state.cy + 1;
|
|
|
|
old_y = 0;
|
|
/* Rewrap the first line from the history if needed */
|
|
if (ty->backsize >= 1)
|
|
{
|
|
Termsave *ts;
|
|
ts = BACKLOG_ROW_GET(ty, 1);
|
|
ts = termpty_save_extract(ts);
|
|
if (ts->cells && ts->w && ts->cells[ts->w - 1].att.autowrapped)
|
|
{
|
|
Termcell *cells = &(TERMPTY_SCREEN(ty, 0, old_y)),
|
|
*new_cells;
|
|
int len;
|
|
|
|
ts->cells[ts->w - 1].att.autowrapped = 0;
|
|
|
|
len = termpty_line_length(cells, old_w);
|
|
|
|
new_cells = malloc((ts->w + len) * sizeof(Termcell));
|
|
if (!new_cells)
|
|
goto bad;
|
|
memcpy(new_cells, ts->cells, ts->w * sizeof(Termcell));
|
|
memcpy(new_cells + ts->w, cells, len * sizeof(Termcell));
|
|
|
|
len+= ts->w;
|
|
|
|
_backlog_remove_latest_nolock(ty);
|
|
|
|
_termpty_line_rewrap(ty, new_cells, len, &new_si,
|
|
old_y == ty->cursor_state.cy);
|
|
|
|
free(new_cells);
|
|
old_y = 1;
|
|
}
|
|
}
|
|
/* For all the other lines, do not care about the history */
|
|
for (; old_y < effective_old_h; old_y++)
|
|
{
|
|
/* for each line in the old screen, append it to the new screen */
|
|
Termcell *cells = &(TERMPTY_SCREEN(ty, 0, old_y));
|
|
int len;
|
|
|
|
len = termpty_line_length(cells, old_w);
|
|
_termpty_line_rewrap(ty, cells, len, &new_si,
|
|
old_y == ty->cursor_state.cy);
|
|
}
|
|
|
|
free(ty->screen);
|
|
ty->screen = new_screen;
|
|
|
|
ty->cursor_state.cy = (new_si.cy >= 0) ? new_si.cy : 0;
|
|
ty->cursor_state.cx = (new_si.cx >= 0) ? new_si.cx : 0;
|
|
ty->circular_offset = new_si.circular_offset;
|
|
|
|
ty->w = new_w;
|
|
ty->h = new_h;
|
|
ty->termstate.had_cr = 0;
|
|
ty->termstate.wrapnext = 0;
|
|
|
|
if (altbuf)
|
|
termpty_screen_swap(ty);
|
|
|
|
_limit_coord(ty);
|
|
|
|
_pty_size(ty);
|
|
|
|
termpty_backlog_unlock();
|
|
|
|
ty->backlog_beacon.backlog_y = 1;
|
|
ty->backlog_beacon.screen_y = 1;
|
|
|
|
return;
|
|
|
|
bad:
|
|
termpty_backlog_unlock();
|
|
free(new_screen);
|
|
}
|
|
|
|
void
|
|
termpty_backlog_size_set(Termpty *ty, size_t size)
|
|
{
|
|
if (ty->backsize == size)
|
|
return;
|
|
|
|
/* TODO: RESIZE: handle that case better: changing backscroll size */
|
|
termpty_backlog_lock();
|
|
|
|
if (ty->back)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < ty->backsize; i++)
|
|
termpty_save_free(&ty->back[i]);
|
|
free(ty->back);
|
|
}
|
|
if (size > 0)
|
|
ty->back = calloc(1, sizeof(Termsave) * size);
|
|
else
|
|
ty->back = NULL;
|
|
ty->backpos = 0;
|
|
ty->backsize = size;
|
|
termpty_backlog_unlock();
|
|
}
|
|
|
|
pid_t
|
|
termpty_pid_get(const Termpty *ty)
|
|
{
|
|
return ty->pid;
|
|
}
|
|
|
|
void
|
|
termpty_block_free(Termblock *tb)
|
|
{
|
|
char *s;
|
|
if (tb->path) eina_stringshare_del(tb->path);
|
|
if (tb->link) eina_stringshare_del(tb->link);
|
|
if (tb->chid) eina_stringshare_del(tb->chid);
|
|
if (tb->obj) evas_object_del(tb->obj);
|
|
EINA_LIST_FREE(tb->cmds, s) free(s);
|
|
free(tb);
|
|
}
|
|
|
|
Termblock *
|
|
termpty_block_new(Termpty *ty, int w, int h, const char *path, const char *link)
|
|
{
|
|
Termblock *tb;
|
|
int id;
|
|
|
|
id = ty->block.curid;
|
|
if (!ty->block.blocks)
|
|
ty->block.blocks = eina_hash_int32_new((Eina_Free_Cb)termpty_block_free);
|
|
if (!ty->block.blocks) return NULL;
|
|
tb = eina_hash_find(ty->block.blocks, &id);
|
|
if (tb)
|
|
{
|
|
if (tb->active)
|
|
ty->block.active = eina_list_remove(ty->block.active, tb);
|
|
eina_hash_del(ty->block.blocks, &id, tb);
|
|
}
|
|
tb = calloc(1, sizeof(Termblock));
|
|
if (!tb) return NULL;
|
|
tb->pty = ty;
|
|
tb->id = id;
|
|
tb->w = w;
|
|
tb->h = h;
|
|
tb->path = eina_stringshare_add(path);
|
|
if (link) tb->link = eina_stringshare_add(link);
|
|
eina_hash_add(ty->block.blocks, &id, tb);
|
|
ty->block.curid++;
|
|
if (ty->block.curid >= 8192) ty->block.curid = 0;
|
|
return tb;
|
|
}
|
|
|
|
void
|
|
termpty_block_insert(Termpty *ty, int ch, Termblock *blk)
|
|
{
|
|
// bit 0-8 = y (9b 0->511)
|
|
// bit 9-17 = x (9b 0->511)
|
|
// bit 18-30 = id (13b 0->8191)
|
|
// bit 31 = 1
|
|
//
|
|
// fg/bg = 8+8bit unused. (use for extra id bits? so 16 + 13 == 29bit?)
|
|
//
|
|
// cp = (1 << 31) | ((id 0x1fff) << 18) | ((x & 0x1ff) << 9) | (y & 0x1ff);
|
|
Termexp *ex;
|
|
|
|
ex = calloc(1, sizeof(Termexp));
|
|
if (!ex) return;
|
|
ex->ch = ch;
|
|
ex->left = blk->w * blk->h;
|
|
ex->id = blk->id;
|
|
ex->w = blk->w;
|
|
ex->h = blk->h;
|
|
ty->block.expecting = eina_list_append(ty->block.expecting, ex);
|
|
}
|
|
|
|
int
|
|
termpty_block_id_get(Termcell *cell, int *x, int *y)
|
|
{
|
|
int id;
|
|
|
|
if (!(cell->codepoint & 0x80000000)) return -1;
|
|
id = (cell->codepoint >> 18) & 0x1fff;
|
|
*x = (cell->codepoint >> 9) & 0x1ff;
|
|
*y = cell->codepoint & 0x1ff;
|
|
return id;
|
|
}
|
|
|
|
Termblock *
|
|
termpty_block_get(Termpty *ty, int id)
|
|
{
|
|
if (!ty->block.blocks) return NULL;
|
|
return eina_hash_find(ty->block.blocks, &id);
|
|
}
|
|
|
|
void
|
|
termpty_block_chid_update(Termpty *ty, Termblock *blk)
|
|
{
|
|
if (!blk->chid) return;
|
|
if (!ty->block.chid_map)
|
|
ty->block.chid_map = eina_hash_string_superfast_new(NULL);
|
|
if (!ty->block.chid_map) return;
|
|
eina_hash_add(ty->block.chid_map, blk->chid, blk);
|
|
}
|
|
|
|
Termblock *
|
|
termpty_block_chid_get(Termpty *ty, const char *chid)
|
|
{
|
|
Termblock *tb;
|
|
|
|
tb = eina_hash_find(ty->block.chid_map, chid);
|
|
return tb;
|
|
}
|
|
|
|
static void
|
|
_handle_block_codepoint_overwrite_heavy(Termpty *ty, int oldc, int newc)
|
|
{
|
|
Termblock *tb;
|
|
int ido = 0, idn = 0;
|
|
|
|
if (oldc & 0x80000000) ido = (oldc >> 18) & 0x1fff;
|
|
if (newc & 0x80000000) idn = (newc >> 18) & 0x1fff;
|
|
if (((oldc & 0x80000000) && (newc & 0x80000000)) && (idn == ido)) return;
|
|
|
|
if (oldc & 0x80000000)
|
|
{
|
|
tb = termpty_block_get(ty, ido);
|
|
if (!tb) return;
|
|
tb->refs--;
|
|
if (tb->refs == 0)
|
|
{
|
|
if (tb->active)
|
|
ty->block.active = eina_list_remove(ty->block.active, tb);
|
|
eina_hash_del(ty->block.blocks, &ido, tb);
|
|
}
|
|
}
|
|
|
|
if (newc & 0x80000000)
|
|
{
|
|
tb = termpty_block_get(ty, idn);
|
|
if (!tb) return;
|
|
tb->refs++;
|
|
}
|
|
}
|
|
|
|
/* Try to trick the compiler into inlining the first test */
|
|
static inline void
|
|
_handle_block_codepoint_overwrite(Termpty *ty, Eina_Unicode oldc, Eina_Unicode newc)
|
|
{
|
|
if (!((oldc | newc) & 0x80000000)) return;
|
|
_handle_block_codepoint_overwrite_heavy(ty, oldc, newc);
|
|
}
|
|
|
|
void
|
|
termpty_cell_copy(Termpty *ty, Termcell *src, Termcell *dst, int n)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
_handle_block_codepoint_overwrite(ty, dst[i].codepoint, src[i].codepoint);
|
|
dst[i] = src[i];
|
|
}
|
|
}
|
|
|
|
void
|
|
termpty_screen_swap(Termpty *ty)
|
|
{
|
|
Termcell *tmp_screen;
|
|
int tmp_circular_offset;
|
|
|
|
tmp_screen = ty->screen;
|
|
ty->screen = ty->screen2;
|
|
ty->screen2 = tmp_screen;
|
|
|
|
tmp_circular_offset = ty->circular_offset;
|
|
ty->circular_offset = ty->circular_offset2;
|
|
ty->circular_offset2 = tmp_circular_offset;
|
|
|
|
ty->altbuf = !ty->altbuf;
|
|
|
|
if (ty->cb.cancel_sel.func)
|
|
ty->cb.cancel_sel.func(ty->cb.cancel_sel.data);
|
|
}
|
|
|
|
void
|
|
termpty_cell_fill(Termpty *ty, Termcell *src, Termcell *dst, int n)
|
|
{
|
|
int i;
|
|
|
|
if (src)
|
|
{
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
_handle_block_codepoint_overwrite(ty, dst[i].codepoint, src[0].codepoint);
|
|
dst[i] = src[0];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
_handle_block_codepoint_overwrite(ty, dst[i].codepoint, 0);
|
|
memset(&(dst[i]), 0, sizeof(*dst));
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
termpty_cell_codepoint_att_fill(Termpty *ty, Eina_Unicode codepoint,
|
|
Termatt att, Termcell *dst, int n)
|
|
{
|
|
Termcell local = { .codepoint = codepoint, .att = att };
|
|
int i;
|
|
|
|
for (i = 0; i < n; i++)
|
|
{
|
|
_handle_block_codepoint_overwrite(ty, dst[i].codepoint, codepoint);
|
|
dst[i] = local;
|
|
}
|
|
}
|
|
|
|
Config *
|
|
termpty_config_get(const Termpty *ty)
|
|
{
|
|
return termio_config_get(ty->obj);
|
|
}
|