kc3-lang/libevent/sample/signal-test.c
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Hash : a0276292
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Date : 2019-08-21T01:00:07
sample/signal-test: fix use of uninitialized variable signal_int is uninitialized in the !base error path. Signed-off-by: David Disseldorp <ddiss@samba.org>
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sample/signal-test.c
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/* * Compile with: * cc -I/usr/local/include -o signal-test \ * signal-test.c -L/usr/local/lib -levent */ #include <sys/types.h> #include <event2/event-config.h> #include <sys/stat.h> #ifndef _WIN32 #include <sys/queue.h> #include <unistd.h> #include <sys/time.h> #else #include <winsock2.h> #include <windows.h> #endif #include <signal.h> #include <fcntl.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include <errno.h> #include <event2/event.h> int called = 0; static void signal_cb(evutil_socket_t fd, short event, void *arg) { struct event *signal = arg; printf("signal_cb: got signal %d\n", event_get_signal(signal)); if (called >= 2) event_del(signal); called++; } int main(int argc, char **argv) { struct event *signal_int = NULL; struct event_base* base; int ret = 0; #ifdef _WIN32 WORD wVersionRequested; WSADATA wsaData; wVersionRequested = MAKEWORD(2, 2); (void) WSAStartup(wVersionRequested, &wsaData); #endif /* Initialize the event library */ base = event_base_new(); if (!base) { ret = 1; goto out; } /* Initialize one event */ signal_int = evsignal_new(base, SIGINT, signal_cb, event_self_cbarg()); if (!signal_int) { ret = 2; goto out; } event_add(signal_int, NULL); event_base_dispatch(base); out: if (signal_int) event_free(signal_int); if (base) event_base_free(base); return ret; }