Ejemplos de server_set_stdin_callback en C++ (Cpp)

Ejemplo n.º 1

Archivo: cmd-load-buffer.c Proyecto: Stichting-MINIX-Research-Foundation/minix

enum cmd_retval
cmd_load_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
{
	struct args	*args = self->args;
	struct client	*c = cmdq->client;
	struct session  *s;
	FILE		*f;
	const char	*path;
	char		*pdata, *new_pdata, *cause;
	size_t		 psize;
	u_int		 limit;
	int		 ch, error, buffer, *buffer_ptr, cwd, fd;

	if (!args_has(args, 'b'))
		buffer = -1;
	else {
		buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
		if (cause != NULL) {
			cmdq_error(cmdq, "buffer %s", cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}
	}

	path = args->argv[0];
	if (strcmp(path, "-") == 0) {
		buffer_ptr = xmalloc(sizeof *buffer_ptr);
		*buffer_ptr = buffer;

		error = server_set_stdin_callback(c, cmd_load_buffer_callback,
		    buffer_ptr, &cause);
		if (error != 0) {
			cmdq_error(cmdq, "%s: %s", path, cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}
		return (CMD_RETURN_WAIT);
	}

	if (c != NULL && c->session == NULL)
		cwd = c->cwd;
	else if ((s = cmd_current_session(cmdq, 0)) != NULL)
		cwd = s->cwd;
	else
		cwd = AT_FDCWD;

	if ((fd = openat(cwd, path, O_RDONLY)) == -1 ||
	    (f = fdopen(fd, "rb")) == NULL) {
		if (fd != -1)
			close(fd);
		cmdq_error(cmdq, "%s: %s", path, strerror(errno));
		return (CMD_RETURN_ERROR);
	}

	pdata = NULL;
	psize = 0;
	while ((ch = getc(f)) != EOF) {
		/* Do not let the server die due to memory exhaustion. */
		if ((new_pdata = realloc(pdata, psize + 2)) == NULL) {
			cmdq_error(cmdq, "realloc error: %s", strerror(errno));
			goto error;
		}
		pdata = new_pdata;
		pdata[psize++] = ch;
	}
	if (ferror(f)) {
		cmdq_error(cmdq, "%s: read error", path);
		goto error;
	}
	if (pdata != NULL)
		pdata[psize] = '\0';

	fclose(f);

	limit = options_get_number(&global_options, "buffer-limit");
	if (buffer == -1) {
		paste_add(&global_buffers, pdata, psize, limit);
		return (CMD_RETURN_NORMAL);
	}
	if (paste_replace(&global_buffers, buffer, pdata, psize) != 0) {
		cmdq_error(cmdq, "no buffer %d", buffer);
		free(pdata);
		return (CMD_RETURN_ERROR);
	}

	return (CMD_RETURN_NORMAL);

error:
	free(pdata);
	if (f != NULL)
		fclose(f);
	return (CMD_RETURN_ERROR);
}

Ejemplo n.º 2

Archivo: cmd-load-buffer.c Proyecto: kylape/tmux

enum cmd_retval
cmd_load_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
{
	struct args	*args = self->args;
	struct client	*c = cmdq->client;
	struct session  *s;
	FILE		*f;
	const char	*path, *bufname, *cwd;
	char		*pdata, *new_pdata, *cause, *file, resolved[PATH_MAX];
	size_t		 psize;
	int		 ch, error;

	bufname = NULL;
	if (args_has(args, 'b'))
		bufname = args_get(args, 'b');

	path = args->argv[0];
	if (strcmp(path, "-") == 0) {
		error = server_set_stdin_callback(c, cmd_load_buffer_callback,
		    (void *)bufname, &cause);
		if (error != 0) {
			cmdq_error(cmdq, "%s: %s", path, cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}
		return (CMD_RETURN_WAIT);
	}

	if (c != NULL && c->session == NULL)
		cwd = c->cwd;
	else if ((s = cmd_find_current(cmdq)) != NULL)
		cwd = s->cwd;
	else
		cwd = ".";

	xasprintf(&file, "%s/%s", cwd, path);
	if (realpath(file, resolved) == NULL)
		f = NULL;
	else
		f = fopen(resolved, "rb");
	free(file);
	if (f == NULL) {
		cmdq_error(cmdq, "%s: %s", resolved, strerror(errno));
		return (CMD_RETURN_ERROR);
	}

	pdata = NULL;
	psize = 0;
	while ((ch = getc(f)) != EOF) {
		/* Do not let the server die due to memory exhaustion. */
		if ((new_pdata = realloc(pdata, psize + 2)) == NULL) {
			cmdq_error(cmdq, "realloc error: %s", strerror(errno));
			goto error;
		}
		pdata = new_pdata;
		pdata[psize++] = ch;
	}
	if (ferror(f)) {
		cmdq_error(cmdq, "%s: read error", resolved);
		goto error;
	}
	if (pdata != NULL)
		pdata[psize] = '\0';

	fclose(f);

	if (paste_set(pdata, psize, bufname, &cause) != 0) {
		cmdq_error(cmdq, "%s", cause);
		free(pdata);
		free(cause);
		return (CMD_RETURN_ERROR);
	}

	return (CMD_RETURN_NORMAL);

error:
	free(pdata);
	if (f != NULL)
		fclose(f);
	return (CMD_RETURN_ERROR);
}

Ejemplo n.º 3

Archivo: cmd-load-buffer.c Proyecto: ajinkya93/netbsd-src

enum cmd_retval
cmd_load_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
{
	struct args	*args = self->args;
	struct client	*c = cmdq->client;
	struct session  *s;
	FILE		*f;
	const char	*path, *bufname;
	char		*pdata, *new_pdata, *cause;
	size_t		 psize;
	int		 ch, error, cwd, fd;

	bufname = NULL;
	if (args_has(args, 'b'))
		bufname = args_get(args, 'b');

	path = args->argv[0];
	if (strcmp(path, "-") == 0) {
		error = server_set_stdin_callback(c, cmd_load_buffer_callback,
		    __UNCONST(bufname), &cause);
		if (error != 0) {
			cmdq_error(cmdq, "%s: %s", path, cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}
		return (CMD_RETURN_WAIT);
	}

	if (c != NULL && c->session == NULL)
		cwd = c->cwd;
	else if ((s = cmd_find_current(cmdq)) != NULL)
		cwd = s->cwd;
	else
		cwd = AT_FDCWD;

	if ((fd = openat(cwd, path, O_RDONLY)) == -1 ||
	    (f = fdopen(fd, "rb")) == NULL) {
		if (fd != -1)
			close(fd);
		cmdq_error(cmdq, "%s: %s", path, strerror(errno));
		return (CMD_RETURN_ERROR);
	}

	pdata = NULL;
	psize = 0;
	while ((ch = getc(f)) != EOF) {
		/* Do not let the server die due to memory exhaustion. */
		if ((new_pdata = realloc(pdata, psize + 2)) == NULL) {
			cmdq_error(cmdq, "realloc error: %s", strerror(errno));
			goto error;
		}
		pdata = new_pdata;
		pdata[psize++] = ch;
	}
	if (ferror(f)) {
		cmdq_error(cmdq, "%s: read error", path);
		goto error;
	}
	if (pdata != NULL)
		pdata[psize] = '\0';

	fclose(f);

	if (paste_set(pdata, psize, bufname, &cause) != 0) {
		cmdq_error(cmdq, "%s", cause);
		free(pdata);
		free(cause);
		return (CMD_RETURN_ERROR);
	}

	return (CMD_RETURN_NORMAL);

error:
	free(pdata);
	if (f != NULL)
		fclose(f);
	return (CMD_RETURN_ERROR);
}