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Revamp interface to verify_ssh_host_key() and askalg(). Each of them

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now returns an integer: 0 means cancel the SSH connection and 1
means continue with it. Additionally, they can return -1, which
means `front end has set an asynchronous alert box in motion, please
wait to be called back with the result', and each one is passed a
callback function pointer and context for this purpose.

I have not yet done the same to askappend() yet, because it will
take a certain amount of reorganisation of logging.c.

Importantly, this checkin means the host key dialog box now works on
OS X.

[originally from svn r5330]
This commit is contained in:
Simon Tatham
2005-02-17 18:34:24 +00:00
parent 92ccb964a2
commit 8574822b9b
11 changed files with 456 additions and 140 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
unix/gtkdlg.c
View File

@ -2294,8 +2294,9 @@ int reallyclose(void *frontend)
return ret;
}
void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
char *keystr, char *fingerprint)
int verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
char *keystr, char *fingerprint,
void (*callback)(void *ctx, int result), void *ctx)
{
static const char absenttxt[] =
"The server's host key is not cached. You have no guarantee "
@ -2332,7 +2333,7 @@ void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
ret = verify_host_key(host, port, keytype, keystr);
if (ret == 0) /* success - key matched OK */
return;
return 1;
text = dupprintf((ret == 2 ? wrongtxt : absenttxt), keytype, fingerprint);
@ -2347,16 +2348,20 @@ void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
sfree(text);
if (ret == 0)
cleanup_exit(0);
else if (ret == 2)
store_host_key(host, port, keytype, keystr);
return 0; /* do not continue with connection */
else {
if (ret == 2)
store_host_key(host, port, keytype, keystr);
return 1; /* continue with connection */
}
}
/*
* Ask whether the selected algorithm is acceptable (since it was
* below the configured 'warn' threshold).
*/
void askalg(void *frontend, const char *algtype, const char *algname)
int askalg(void *frontend, const char *algtype, const char *algname,
void (*callback)(void *ctx, int result), void *ctx)
{
static const char msg[] =
"The first %s supported by the server is "
@ -2375,9 +2380,9 @@ void askalg(void *frontend, const char *algtype, const char *algname)
sfree(text);
if (ret) {
return;
return 1;
} else {
cleanup_exit(0);
return 0;
}
}

23
unix/uxcons.c
View File

@ -47,8 +47,9 @@ void timer_change_notify(long next)
{
}
void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
char *keystr, char *fingerprint)
int verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
char *keystr, char *fingerprint,
void (*callback)(void *ctx, int result), void *ctx)
{
int ret;
@ -107,12 +108,12 @@ void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
ret = verify_host_key(host, port, keytype, keystr);
if (ret == 0) /* success - key matched OK */
return;
return 1;
if (ret == 2) { /* key was different */
if (console_batch_mode) {
fprintf(stderr, wrongmsg_batch, keytype, fingerprint);
cleanup_exit(1);
return 0;
}
fprintf(stderr, wrongmsg, keytype, fingerprint);
fflush(stderr);
@ -120,7 +121,7 @@ void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
if (ret == 1) { /* key was absent */
if (console_batch_mode) {
fprintf(stderr, absentmsg_batch, keytype, fingerprint);
cleanup_exit(1);
return 0;
}
fprintf(stderr, absentmsg, keytype, fingerprint);
fflush(stderr);
@ -140,9 +141,10 @@ void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
if (line[0] != '\0' && line[0] != '\r' && line[0] != '\n') {
if (line[0] == 'y' || line[0] == 'Y')
store_host_key(host, port, keytype, keystr);
return 1;
} else {
fprintf(stderr, abandoned);
cleanup_exit(0);
return 0;
}
}
@ -150,7 +152,8 @@ void verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
* Ask whether the selected algorithm is acceptable (since it was
* below the configured 'warn' threshold).
*/
void askalg(void *frontend, const char *algtype, const char *algname)
int askalg(void *frontend, const char *algtype, const char *algname,
void (*callback)(void *ctx, int result), void *ctx)
{
static const char msg[] =
"The first %s supported by the server is\n"
@ -166,7 +169,7 @@ void askalg(void *frontend, const char *algtype, const char *algname)
if (console_batch_mode) {
fprintf(stderr, msg_batch, algtype, algname);
cleanup_exit(1);
return 0;
}
fprintf(stderr, msg, algtype, algname);
@ -184,10 +187,10 @@ void askalg(void *frontend, const char *algtype, const char *algname)
}
if (line[0] == 'y' || line[0] == 'Y') {
return;
return 1;
} else {
fprintf(stderr, abandoned);
cleanup_exit(0);
return 0;
}
}