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Yet another possible segfault path in the backends fixed. I don't

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_believe_ I'm still finding these. I have no idea what I was
thinking when I wrote this stuff.

[originally from svn r1162]
This commit is contained in:
Simon Tatham 2001-07-31 14:23:21 +00:00
parent 86e1a95166
commit a4c1aad9b2
4 changed files with 16 additions and 8 deletions
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6
raw.c
View File

@ -23,8 +23,10 @@ static void c_write(char *buf, int len)
static int raw_closing(Plug plug, char *error_msg, int error_code, static int raw_closing(Plug plug, char *error_msg, int error_code,
int calling_back) int calling_back)
{ {
sk_close(s); if (s) {
s = NULL; sk_close(s);
s = NULL;
}
if (error_msg) { if (error_msg) {
/* A socket error has occurred. */ /* A socket error has occurred. */
connection_fatal(error_msg); connection_fatal(error_msg);

6
rlogin.c
View File

@ -24,8 +24,10 @@ static void c_write(char *buf, int len)
static int rlogin_closing(Plug plug, char *error_msg, int error_code, static int rlogin_closing(Plug plug, char *error_msg, int error_code,
int calling_back) int calling_back)
{ {
sk_close(s); if (s) {
s = NULL; sk_close(s);
s = NULL;
}
if (error_msg) { if (error_msg) {
/* A socket error has occurred. */ /* A socket error has occurred. */
connection_fatal(error_msg); connection_fatal(error_msg);

6
ssh.c
View File

@ -1478,8 +1478,10 @@ static int ssh_closing(Plug plug, char *error_msg, int error_code,
int calling_back) int calling_back)
{ {
ssh_state = SSH_STATE_CLOSED; ssh_state = SSH_STATE_CLOSED;
sk_close(s); if (s) {
s = NULL; sk_close(s);
s = NULL;
}
if (error_msg) { if (error_msg) {
/* A socket error has occurred. */ /* A socket error has occurred. */
connection_fatal(error_msg); connection_fatal(error_msg);

6
telnet.c
View File

@ -565,8 +565,10 @@ static void do_telnet_read(char *buf, int len)
static int telnet_closing(Plug plug, char *error_msg, int error_code, static int telnet_closing(Plug plug, char *error_msg, int error_code,
int calling_back) int calling_back)
{ {
sk_close(s); if (s) {
s = NULL; sk_close(s);
s = NULL;
}
if (error_msg) { if (error_msg) {
/* A socket error has occurred. */ /* A socket error has occurred. */
connection_fatal(error_msg); connection_fatal(error_msg);