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| author | Laurent Bercot <ska-skaware@skarnet.org> | 2015-01-06 19:41:49 +0000 |
|---|---|---|
| committer | Laurent Bercot <ska-skaware@skarnet.org> | 2015-01-06 19:41:49 +0000 |
| commit | 80f1ebe9aaa1f5fb0ee796f005b0abda1628226d (patch) | |
| tree | 23ddb10d18ba833a1028fba3e59ab0133520b733 /src/conn-tools/s6-tcpserver4.c | |
| parent | 752fa538fad7a65a3c88383a843c1649355f9298 (diff) | |
| download | s6-networking-80f1ebe9aaa1f5fb0ee796f005b0abda1628226d.tar.xz | |
Prevent failure of -1 option in ucspi servers when stdout is closed
Diffstat (limited to 'src/conn-tools/s6-tcpserver4.c')
| -rw-r--r-- | src/conn-tools/s6-tcpserver4.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/conn-tools/s6-tcpserver4.c b/src/conn-tools/s6-tcpserver4.c index 77ecebd..e030b6d 100644 --- a/src/conn-tools/s6-tcpserver4.c +++ b/src/conn-tools/s6-tcpserver4.c @@ -6,6 +6,7 @@ #include <sys/wait.h> #include <errno.h> #include <unistd.h> +#include <fcntl.h> #include <limits.h> #include <grp.h> #include <signal.h> @@ -327,8 +328,13 @@ int main (int argc, char const *const *argv, char const *const *envp) argc -= l.ind ; argv += l.ind ; if (argc < 3) dieusage() ; if (!ip4_scan(argv[0], ip) || !uint160_scan(argv[1], &port)) dieusage() ; - fd_close(0) ; - if (!flag1) fd_close(1) ; + close(0) ; + if (flag1) + { + if (fcntl(1, F_GETFD) < 0) + strerr_dief1sys(100, "called with option -1 but stdout said") ; + } + else close(1) ; if (!maxconn) maxconn = 1 ; if (maxconn > ABSOLUTE_MAXCONN) maxconn = ABSOLUTE_MAXCONN ; if (localmaxconn > maxconn) localmaxconn = maxconn ; |