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Ignore SIGPIPE if client closes connection abruptly 

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20678)
This commit is contained in:
Vishwa Pravin 2023-04-03 12:16:33 +05:30 committed by Pauli
parent f06ef1657a
commit f309b3f608
1 changed files with 6 additions and 0 deletions
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6
demos/sslecho/main.c
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@ -14,6 +14,7 @@
#include <arpa/inet.h> #include <arpa/inet.h>
#include <openssl/ssl.h> #include <openssl/ssl.h>
#include <openssl/err.h> #include <openssl/err.h>
#include <signal.h>
static const int server_port = 4433; static const int server_port = 4433;
@ -151,6 +152,9 @@ int main(int argc, char **argv)
struct sockaddr_in addr; struct sockaddr_in addr;
unsigned int addr_len = sizeof(addr); unsigned int addr_len = sizeof(addr);
/* ignore SIGPIPE so that server can continue running when client pipe closes abruptly */
signal(SIGPIPE, SIG_IGN);
/* Splash */ /* Splash */
printf("\nsslecho : Simple Echo Client/Server (OpenSSL 3.0.1-dev) : %s : %s\n\n", __DATE__, printf("\nsslecho : Simple Echo Client/Server (OpenSSL 3.0.1-dev) : %s : %s\n\n", __DATE__,
__TIME__); __TIME__);
@ -218,6 +222,8 @@ int main(int argc, char **argv)
if ((rxlen = SSL_read(ssl, rxbuf, rxcap)) <= 0) { if ((rxlen = SSL_read(ssl, rxbuf, rxcap)) <= 0) {
if (rxlen == 0) { if (rxlen == 0) {
printf("Client closed connection\n"); printf("Client closed connection\n");
} else {
printf("SSL_read returned %d\n", rxlen);
} }
ERR_print_errors_fp(stderr); ERR_print_errors_fp(stderr);
break; break;