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Post-release destabilisation! Completely remove the struct type

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'Config' in putty.h, which stores all PuTTY's settings and includes an
arbitrary length limit on every single one of those settings which is
stored in string form. In place of it is 'Conf', an opaque data type
everywhere outside the new file conf.c, which stores a list of (key,
value) pairs in which every key contains an integer identifying a
configuration setting, and for some of those integers the key also
contains extra parts (so that, for instance, CONF_environmt is a
string-to-string mapping). Everywhere that a Config was previously
used, a Conf is now; everywhere there was a Config structure copy,
conf_copy() is called; every lookup, adjustment, load and save
operation on a Config has been rewritten; and there's a mechanism for
serialising a Conf into a binary blob and back for use with Duplicate
Session.

User-visible effects of this change _should_ be minimal, though I
don't doubt I've introduced one or two bugs here and there which will
eventually be found. The _intended_ visible effects of this change are
that all arbitrary limits on configuration strings and lists (e.g.
limit on number of port forwardings) should now disappear; that list
boxes in the configuration will now be displayed in a sorted order
rather than the arbitrary order in which they were added to the list
(since the underlying data structure is now a sorted tree234 rather
than an ad-hoc comma-separated string); and one more specific change,
which is that local and dynamic port forwardings on the same port
number are now mutually exclusive in the configuration (putting 'D' in
the key rather than the value was a mistake in the first place).

One other reorganisation as a result of this is that I've moved all
the dialog.c standard handlers (dlg_stdeditbox_handler and friends)
out into config.c, because I can't really justify calling them generic
any more. When they took a pointer to an arbitrary structure type and
the offset of a field within that structure, they were independent of
whether that structure was a Config or something completely different,
but now they really do expect to talk to a Conf, which can _only_ be
used for PuTTY configuration, so I've renamed them all things like
conf_editbox_handler and moved them out of the nominally independent
dialog-box management module into the PuTTY-specific config.c.

[originally from svn r9214]
This commit is contained in:
Simon Tatham
2011-07-14 18:52:21 +00:00
parent 7aba365ca9
commit a1f3b7a358
64 changed files with 4443 additions and 3303 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
unix/uxpty.c
View File

@ -76,7 +76,7 @@ typedef struct pty_tag *Pty;
static int pty_signal_pipe[2] = { -1, -1 }; /* obviously bogus initial val */
struct pty_tag {
Config cfg;
Conf *conf;
int master_fd, slave_fd;
void *frontend;
char name[FILENAME_MAX];
@ -588,6 +588,8 @@ int pty_real_select_result(Pty pty, int event, int status)
}
if (finished && !pty->finished) {
int close_on_exit;
uxsel_del(pty->master_fd);
pty_close(pty);
pty->master_fd = -1;
@ -600,8 +602,9 @@ int pty_real_select_result(Pty pty, int event, int status)
* Only On Clean and it wasn't a clean exit) do we output a
* `terminated' message.
*/
if (pty->cfg.close_on_exit == FORCE_OFF ||
(pty->cfg.close_on_exit == AUTO && pty->exit_code != 0)) {
close_on_exit = conf_get_int(pty->conf, CONF_close_on_exit);
if (close_on_exit == FORCE_OFF ||
(close_on_exit == AUTO && pty->exit_code != 0)) {
char message[512];
if (WIFEXITED(pty->exit_code))
sprintf(message, "\r\n[pterm: process terminated with exit"
@ -681,7 +684,7 @@ static void pty_uxsel_setup(Pty pty)
* Also places the canonical host name into `realhost'. It must be
* freed by the caller.
*/
static const char *pty_init(void *frontend, void **backend_handle, Config *cfg,
static const char *pty_init(void *frontend, void **backend_handle, Conf *conf,
char *host, int port, char **realhost, int nodelay,
int keepalive)
{
@ -705,9 +708,9 @@ static const char *pty_init(void *frontend, void **backend_handle, Config *cfg,
pty->frontend = frontend;
*backend_handle = NULL; /* we can't sensibly use this, sadly */
pty->cfg = *cfg; /* structure copy */
pty->term_width = cfg->width;
pty->term_height = cfg->height;
pty->conf = conf_copy(conf);
pty->term_width = conf_get_int(conf, CONF_width);
pty->term_height = conf_get_int(conf, CONF_height);
if (pty->master_fd < 0)
pty_open_master(pty);
@ -719,7 +722,8 @@ static const char *pty_init(void *frontend, void **backend_handle, Config *cfg,
{
struct termios attrs;
tcgetattr(pty->master_fd, &attrs);
attrs.c_cc[VERASE] = cfg->bksp_is_delete ? '\177' : '\010';
attrs.c_cc[VERASE] = conf_get_int(conf, CONF_bksp_is_delete)
? '\177' : '\010';
tcsetattr(pty->master_fd, TCSANOW, &attrs);
}
@ -728,7 +732,7 @@ static const char *pty_init(void *frontend, void **backend_handle, Config *cfg,
* Stamp utmp (that is, tell the utmp helper process to do so),
* or not.
*/
if (!cfg->stamp_utmp) {
if (!conf_get_int(conf, CONF_stamp_utmp)) {
close(pty_utmp_helper_pipe); /* just let the child process die */
pty_utmp_helper_pipe = -1;
} else {
@ -787,7 +791,8 @@ static const char *pty_init(void *frontend, void **backend_handle, Config *cfg,
close(open(pty->name, O_WRONLY, 0));
setpgid(pgrp, pgrp);
{
char *term_env_var = dupprintf("TERM=%s", cfg->termtype);
char *term_env_var = dupprintf("TERM=%s",
conf_get_str(conf, CONF_termtype));
putenv(term_env_var);
/* We mustn't free term_env_var, as putenv links it into the
* environment in place.
@ -803,18 +808,12 @@ static const char *pty_init(void *frontend, void **backend_handle, Config *cfg,
}
#endif
{
char *e = cfg->environmt;
char *var, *varend, *val, *varval;
while (*e) {
var = e;
while (*e && *e != '\t') e++;
varend = e;
if (*e == '\t') e++;
val = e;
while (*e) e++;
e++;
char *key, *val;
varval = dupprintf("%.*s=%s", varend-var, var, val);
for (val = conf_get_str_strs(conf, CONF_environmt, NULL, &key);
val != NULL;
val = conf_get_str_strs(conf, CONF_environmt, key, &key)) {
char *varval = dupcat(key, "=", val, NULL);
putenv(varval);
/*
* We must not free varval, since putenv links it
@ -841,7 +840,7 @@ static const char *pty_init(void *frontend, void **backend_handle, Config *cfg,
else {
char *shell = getenv("SHELL");
char *shellname;
if (cfg->login_shell) {
if (conf_get_int(conf, CONF_login_shell)) {
char *p = strrchr(shell, '/');
shellname = snewn(2+strlen(shell), char);
p = p ? p+1 : shell;
@ -884,7 +883,7 @@ static const char *pty_init(void *frontend, void **backend_handle, Config *cfg,
return NULL;
}
static void pty_reconfig(void *handle, Config *cfg)
static void pty_reconfig(void *handle, Conf *conf)
{
Pty pty = (Pty)handle;
/*
@ -892,7 +891,7 @@ static void pty_reconfig(void *handle, Config *cfg)
* unfortunately we do need to pick up the setting of Close On
* Exit so we know whether to give a `terminated' message.
*/
pty->cfg = *cfg; /* structure copy */
conf_copy_into(pty->conf, conf);
}
/*