}
cleanup_exit(1);
}
+void nonfatal(char *p, ...)
+{
+ struct termios cf;
+ va_list ap;
+ premsg(&cf);
+ fprintf(stderr, "ERROR: ");
+ va_start(ap, p);
+ vfprintf(stderr, p, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+ postmsg(&cf);
+ if (logctx) {
+ log_free(logctx);
+ logctx = NULL;
+ }
+}
void connection_fatal(void *frontend, char *p, ...)
{
struct termios cf;
static Backend *back;
static void *backhandle;
-static Config cfg;
+static Conf *conf;
/*
* Default settings that are specific to pterm.
int platform_default_i(const char *name, int def)
{
- if (!strcmp(name, "TermWidth") ||
- !strcmp(name, "TermHeight")) {
- struct winsize size;
- if (ioctl(STDIN_FILENO, TIOCGWINSZ, (void *)&size) >= 0)
- return (!strcmp(name, "TermWidth") ? size.ws_col : size.ws_row);
- }
return def;
}
-FontSpec platform_default_fontspec(const char *name)
+FontSpec *platform_default_fontspec(const char *name)
{
- FontSpec ret;
- *ret.name = '\0';
- return ret;
+ return fontspec_new("");
}
-Filename platform_default_filename(const char *name)
+Filename *platform_default_filename(const char *name)
{
- Filename ret;
if (!strcmp(name, "LogFileName"))
- strcpy(ret.path, "putty.log");
+ return filename_from_str("putty.log");
else
- *ret.path = '\0';
- return ret;
+ return filename_from_str("");
}
char *x_get_default(const char *key)
}
bufchain stdout_data, stderr_data;
+enum { EOF_NO, EOF_PENDING, EOF_SENT } outgoingeof;
int try_output(int is_stderr)
{
bufchain *chain = (is_stderr ? &stderr_data : &stdout_data);
int fd = (is_stderr ? STDERR_FILENO : STDOUT_FILENO);
void *senddata;
- int sendlen, ret, fl;
-
- if (bufchain_size(chain) == 0)
- return bufchain_size(&stdout_data) + bufchain_size(&stderr_data);
-
- fl = fcntl(fd, F_GETFL);
- if (fl != -1 && !(fl & O_NONBLOCK))
- fcntl(fd, F_SETFL, fl | O_NONBLOCK);
- do {
- bufchain_prefix(chain, &senddata, &sendlen);
- ret = write(fd, senddata, sendlen);
- if (ret > 0)
- bufchain_consume(chain, ret);
- } while (ret == sendlen && bufchain_size(chain) != 0);
- if (fl != -1 && !(fl & O_NONBLOCK))
- fcntl(fd, F_SETFL, fl);
- if (ret < 0 && errno != EAGAIN) {
- perror(is_stderr ? "stderr: write" : "stdout: write");
- exit(1);
+ int sendlen, ret;
+
+ if (bufchain_size(chain) > 0) {
+ int prev_nonblock = nonblock(fd);
+ do {
+ bufchain_prefix(chain, &senddata, &sendlen);
+ ret = write(fd, senddata, sendlen);
+ if (ret > 0)
+ bufchain_consume(chain, ret);
+ } while (ret == sendlen && bufchain_size(chain) != 0);
+ if (!prev_nonblock)
+ no_nonblock(fd);
+ if (ret < 0 && errno != EAGAIN) {
+ perror(is_stderr ? "stderr: write" : "stdout: write");
+ exit(1);
+ }
+ }
+ if (outgoingeof == EOF_PENDING && bufchain_size(&stdout_data) == 0) {
+ close(STDOUT_FILENO);
+ outgoingeof = EOF_SENT;
}
return bufchain_size(&stdout_data) + bufchain_size(&stderr_data);
}
bufchain_add(&stderr_data, data, len);
return try_output(TRUE);
} else {
+ assert(outgoingeof == EOF_NO);
bufchain_add(&stdout_data, data, len);
return try_output(FALSE);
}
return 0; /* not reached */
}
+int from_backend_eof(void *frontend_handle)
+{
+ assert(outgoingeof == EOF_NO);
+ outgoingeof = EOF_PENDING;
+ try_output(FALSE);
+ return FALSE; /* do not respond to incoming EOF with outgoing */
+}
+
int get_userpass_input(prompts_t *p, unsigned char *in, int inlen)
{
int ret;
exit(1);
}
+void frontend_net_error_pending(void) {}
+
int main(int argc, char **argv)
{
int sending;
int errors;
int use_subsystem = 0;
int got_host = FALSE;
- void *ldisc;
- long now;
+ unsigned long now;
+ struct winsize size;
fdlist = NULL;
fdcount = fdsize = 0;
default_protocol = PROT_SSH;
default_port = 22;
+ bufchain_init(&stdout_data);
+ bufchain_init(&stderr_data);
+ outgoingeof = EOF_NO;
+
flags = FLAG_STDERR | FLAG_STDERR_TTY;
stderr_tty_init();
/*
* Process the command line.
*/
- do_defaults(NULL, &cfg);
+ conf = conf_new();
+ do_defaults(NULL, conf);
loaded_session = FALSE;
- default_protocol = cfg.protocol;
- default_port = cfg.port;
+ default_protocol = conf_get_int(conf, CONF_protocol);
+ default_port = conf_get_int(conf, CONF_port);
errors = 0;
{
/*
if (p) {
const Backend *b = backend_from_name(p);
if (b) {
- default_protocol = cfg.protocol = b->protocol;
- default_port = cfg.port = b->default_port;
+ default_protocol = b->protocol;
+ default_port = b->default_port;
+ conf_set_int(conf, CONF_protocol, default_protocol);
+ conf_set_int(conf, CONF_port, default_port);
}
}
}
char *p = *++argv;
if (*p == '-') {
int ret = cmdline_process_param(p, (argc > 1 ? argv[1] : NULL),
- 1, &cfg);
+ 1, conf);
if (ret == -2) {
fprintf(stderr,
"plink: option \"%s\" requires an argument\n", p);
} else if (!strcmp(p, "-batch")) {
console_batch_mode = 1;
} else if (!strcmp(p, "-s")) {
- /* Save status to write to cfg later. */
+ /* Save status to write to conf later. */
use_subsystem = 1;
- } else if (!strcmp(p, "-V")) {
+ } else if (!strcmp(p, "-V") || !strcmp(p, "--version")) {
version();
+ } else if (!strcmp(p, "--help")) {
+ usage();
+ exit(0);
} else if (!strcmp(p, "-pgpfp")) {
pgp_fingerprints();
exit(1);
errors = 1;
}
} else if (*p) {
- if (!cfg_launchable(&cfg) || !(got_host || loaded_session)) {
+ if (!conf_launchable(conf) || !(got_host || loaded_session)) {
char *q = p;
/*
q += 7;
if (q[0] == '/' && q[1] == '/')
q += 2;
- cfg.protocol = PROT_TELNET;
+ conf_set_int(conf, CONF_protocol, PROT_TELNET);
p = q;
while (*p && *p != ':' && *p != '/')
p++;
if (*p)
*p++ = '\0';
if (c == ':')
- cfg.port = atoi(p);
+ conf_set_int(conf, CONF_port, atoi(p));
else
- cfg.port = -1;
- strncpy(cfg.host, q, sizeof(cfg.host) - 1);
- cfg.host[sizeof(cfg.host) - 1] = '\0';
+ conf_set_int(conf, CONF_port, -1);
+ conf_set_str(conf, CONF_host, q);
got_host = TRUE;
} else {
char *r, *user, *host;
*r = '\0';
b = backend_from_name(p);
if (b) {
- default_protocol = cfg.protocol = b->protocol;
+ default_protocol = b->protocol;
+ conf_set_int(conf, CONF_protocol,
+ default_protocol);
portnumber = b->default_port;
}
p = r + 1;
* same name as the hostname.
*/
{
- Config cfg2;
- do_defaults(host, &cfg2);
- if (loaded_session || !cfg_launchable(&cfg2)) {
+ Conf *conf2 = conf_new();
+ do_defaults(host, conf2);
+ if (loaded_session || !conf_launchable(conf2)) {
/* No settings for this host; use defaults */
/* (or session was already loaded with -load) */
- strncpy(cfg.host, host, sizeof(cfg.host) - 1);
- cfg.host[sizeof(cfg.host) - 1] = '\0';
- cfg.port = default_port;
+ conf_set_str(conf, CONF_host, host);
+ conf_set_int(conf, CONF_port, default_port);
got_host = TRUE;
} else {
- cfg = cfg2;
+ conf_copy_into(conf, conf2);
loaded_session = TRUE;
}
+ conf_free(conf2);
}
if (user) {
/* Patch in specified username. */
- strncpy(cfg.username, user,
- sizeof(cfg.username) - 1);
- cfg.username[sizeof(cfg.username) - 1] = '\0';
+ conf_set_str(conf, CONF_username, user);
}
}
}
if (cmdlen) command[--cmdlen]='\0';
/* change trailing blank to NUL */
- cfg.remote_cmd_ptr = command;
- cfg.remote_cmd_ptr2 = NULL;
- cfg.nopty = TRUE; /* command => no terminal */
+ conf_set_str(conf, CONF_remote_cmd, command);
+ conf_set_str(conf, CONF_remote_cmd2, "");
+ conf_set_int(conf, CONF_nopty, TRUE); /* command => no tty */
break; /* done with cmdline */
}
if (errors)
return 1;
- if (!cfg_launchable(&cfg) || !(got_host || loaded_session)) {
+ if (!conf_launchable(conf) || !(got_host || loaded_session)) {
usage();
}
/*
- * Trim leading whitespace off the hostname if it's there.
+ * Muck about with the hostname in various ways.
*/
{
- int space = strspn(cfg.host, " \t");
- memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space);
- }
+ char *hostbuf = dupstr(conf_get_str(conf, CONF_host));
+ char *host = hostbuf;
+ char *p, *q;
+
+ /*
+ * Trim leading whitespace.
+ */
+ host += strspn(host, " \t");
- /* See if host is of the form user@host */
- if (cfg.host[0] != '\0') {
- char *atsign = strrchr(cfg.host, '@');
- /* Make sure we're not overflowing the user field */
- if (atsign) {
- if (atsign - cfg.host < sizeof cfg.username) {
- strncpy(cfg.username, cfg.host, atsign - cfg.host);
- cfg.username[atsign - cfg.host] = '\0';
+ /*
+ * See if host is of the form user@host, and separate out
+ * the username if so.
+ */
+ if (host[0] != '\0') {
+ char *atsign = strrchr(host, '@');
+ if (atsign) {
+ *atsign = '\0';
+ conf_set_str(conf, CONF_username, host);
+ host = atsign + 1;
}
- memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1));
}
+
+ /*
+ * Trim off a colon suffix if it's there.
+ */
+ host[strcspn(host, ":")] = '\0';
+
+ /*
+ * Remove any remaining whitespace.
+ */
+ p = hostbuf;
+ q = host;
+ while (*q) {
+ if (*q != ' ' && *q != '\t')
+ *p++ = *q;
+ q++;
+ }
+ *p = '\0';
+
+ conf_set_str(conf, CONF_host, hostbuf);
+ sfree(hostbuf);
}
/*
* Perform command-line overrides on session configuration.
*/
- cmdline_run_saved(&cfg);
+ cmdline_run_saved(conf);
/*
* Apply subsystem status.
*/
if (use_subsystem)
- cfg.ssh_subsys = TRUE;
-
- /*
- * Trim a colon suffix off the hostname if it's there.
- */
- cfg.host[strcspn(cfg.host, ":")] = '\0';
-
- /*
- * Remove any remaining whitespace from the hostname.
- */
- {
- int p1 = 0, p2 = 0;
- while (cfg.host[p2] != '\0') {
- if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
- cfg.host[p1] = cfg.host[p2];
- p1++;
- }
- p2++;
- }
- cfg.host[p1] = '\0';
- }
+ conf_set_int(conf, CONF_ssh_subsys, TRUE);
- if (!cfg.remote_cmd_ptr && !*cfg.remote_cmd && !*cfg.ssh_nc_host)
+ if (!*conf_get_str(conf, CONF_remote_cmd) &&
+ !*conf_get_str(conf, CONF_remote_cmd2) &&
+ !*conf_get_str(conf, CONF_ssh_nc_host))
flags |= FLAG_INTERACTIVE;
/*
* Select protocol. This is farmed out into a table in a
* separate file to enable an ssh-free variant.
*/
- back = backend_from_proto(cfg.protocol);
+ back = backend_from_proto(conf_get_int(conf, CONF_protocol));
if (back == NULL) {
fprintf(stderr,
"Internal fault: Unsupported protocol found\n");
* Select port.
*/
if (portnumber != -1)
- cfg.port = portnumber;
+ conf_set_int(conf, CONF_port, portnumber);
+
+ /*
+ * Block SIGPIPE, so that we'll get EPIPE individually on
+ * particular network connections that go wrong.
+ */
+ putty_signal(SIGPIPE, SIG_IGN);
/*
* Set up the pipe we'll use to tell us about SIGWINCH.
}
putty_signal(SIGWINCH, sigwinch);
+ /*
+ * Now that we've got the SIGWINCH handler installed, try to find
+ * out the initial terminal size.
+ */
+ if (ioctl(STDIN_FILENO, TIOCGWINSZ, &size) >= 0) {
+ conf_set_int(conf, CONF_width, size.ws_col);
+ conf_set_int(conf, CONF_height, size.ws_row);
+ }
+
sk_init();
uxsel_init();
* connection is set up, so if there are none now, we can safely set
* the "simple" flag.
*/
- if (cfg.protocol == PROT_SSH && !cfg.x11_forward && !cfg.agentfwd &&
- cfg.portfwd[0] == '\0' && cfg.portfwd[1] == '\0')
- cfg.ssh_simple = TRUE;
+ if (conf_get_int(conf, CONF_protocol) == PROT_SSH &&
+ !conf_get_int(conf, CONF_x11_forward) &&
+ !conf_get_int(conf, CONF_agentfwd) &&
+ !conf_get_str_nthstrkey(conf, CONF_portfwd, 0))
+ conf_set_int(conf, CONF_ssh_simple, TRUE);
+
/*
* Start up the connection.
*/
- logctx = log_init(NULL, &cfg);
+ logctx = log_init(NULL, conf);
console_provide_logctx(logctx);
{
const char *error;
char *realhost;
/* nodelay is only useful if stdin is a terminal device */
- int nodelay = cfg.tcp_nodelay && isatty(0);
+ int nodelay = conf_get_int(conf, CONF_tcp_nodelay) && isatty(0);
- error = back->init(NULL, &backhandle, &cfg, cfg.host, cfg.port,
- &realhost, nodelay, cfg.tcp_keepalives);
+ error = back->init(NULL, &backhandle, conf,
+ conf_get_str(conf, CONF_host),
+ conf_get_int(conf, CONF_port),
+ &realhost, nodelay,
+ conf_get_int(conf, CONF_tcp_keepalives));
if (error) {
fprintf(stderr, "Unable to open connection:\n%s\n", error);
return 1;
}
back->provide_logctx(backhandle, logctx);
- ldisc = ldisc_create(&cfg, NULL, back, backhandle, NULL);
+ ldisc_create(conf, NULL, back, backhandle, NULL);
sfree(realhost);
}
connopen = 1;
}
do {
- long next, ticks;
+ unsigned long next, then;
+ long ticks;
struct timeval tv, *ptv;
if (run_timers(now, &next)) {
- ticks = next - GETTICKCOUNT();
- if (ticks < 0) ticks = 0; /* just in case */
+ then = now;
+ now = GETTICKCOUNT();
+ if (now - then > next - then)
+ ticks = 0;
+ else
+ ticks = next - now;
tv.tv_sec = ticks / 1000;
tv.tv_usec = ticks % 1000 * 1000;
ptv = &tv;
ret = select(maxfd, &rset, &wset, &xset, ptv);
if (ret == 0)
now = next;
- else {
- long newnow = GETTICKCOUNT();
- /*
- * Check to see whether the system clock has
- * changed massively during the select.
- */
- if (newnow - now < 0 || newnow - now > next - now) {
- /*
- * If so, look at the elapsed time in the
- * select and use it to compute a new
- * tickcount_offset.
- */
- long othernow = now + tv.tv_sec * 1000 + tv.tv_usec / 1000;
- /* So we'd like GETTICKCOUNT to have returned othernow,
- * but instead it return newnow. Hence ... */
- tickcount_offset += othernow - newnow;
- now = othernow;
- } else {
- now = newnow;
- }
- }
+ else
+ now = GETTICKCOUNT();
} while (ret < 0 && errno == EINTR);
if (ret < 0) {
if (read(signalpipe[0], c, 1) <= 0)
/* ignore error */;
/* ignore its value; it'll be `x' */
- if (ioctl(0, TIOCGWINSZ, (void *)&size) >= 0)
+ if (ioctl(STDIN_FILENO, TIOCGWINSZ, (void *)&size) >= 0)
back->size(backhandle, size.ws_col, size.ws_row);
}
back->unthrottle(backhandle, try_output(TRUE));
}
+ net_pending_errors();
+
if ((!connopen || !back->connected(backhandle)) &&
bufchain_size(&stdout_data) == 0 &&
bufchain_size(&stderr_data) == 0)
projects / u / mdw / putty / blobdiff