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Clear signal flags /before/ taking action and continue afterwards to reduce

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chance of dropping signals. Pointed out by deraadt@.
This commit is contained in:
Nicholas Marriott
2009-10-26 21:38:18 +00:00
parent 6b804f3a4a
commit a8b1379ccb
2 changed files with 10 additions and 5 deletions
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9
client.c
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@@ -185,17 +185,20 @@ client_main(void)
client_write_server(MSG_EXITING, NULL, 0); client_write_server(MSG_EXITING, NULL, 0);
} }
if (sigchld) { if (sigchld) {
waitpid(WAIT_ANY, NULL, WNOHANG);
sigchld = 0; sigchld = 0;
waitpid(WAIT_ANY, NULL, WNOHANG);
continue;
} }
if (sigwinch) { if (sigwinch) {
sigwinch = 0;
client_write_server(MSG_RESIZE, NULL, 0); client_write_server(MSG_RESIZE, NULL, 0);
sigwinch = 0; continue;
} }
if (sigcont) { if (sigcont) {
sigcont = 0;
siginit(); siginit();
client_write_server(MSG_WAKEUP, NULL, 0); client_write_server(MSG_WAKEUP, NULL, 0);
sigcont = 0; continue;
} }
pfd.fd = client_ibuf.fd; pfd.fd = client_ibuf.fd;

6
server.c
View File

@@ -328,15 +328,17 @@ server_main(int srv_fd)
/* Handle child exit. */ /* Handle child exit. */
if (sigchld) { if (sigchld) {
server_child_signal();
sigchld = 0; sigchld = 0;
server_child_signal();
continue;
} }
/* Recreate socket on SIGUSR1. */ /* Recreate socket on SIGUSR1. */
if (sigusr1) { if (sigusr1) {
sigusr1 = 0;
close(srv_fd); close(srv_fd);
srv_fd = server_create_socket(); srv_fd = server_create_socket();
sigusr1 = 0; continue;
} }
/* Initialise pollfd array and add server socket. */ /* Initialise pollfd array and add server socket. */