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Don't leak file descriptors

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We're leaking file descriptors to child processes. Set FD_CLOEXEC on file
descriptors that don't need to be passed to children to stop this misbehaviour.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Kevin Wolf 2009-12-02 12:24:42 +01:00 • committed by Anthony Liguori
parent 12c09b8ce2
commit 40ff6d7e8d
20 changed files with 178 additions and 34 deletions
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8
qemu-char.c
View file

@ -620,7 +620,7 @@ static CharDriverState *qemu_chr_open_file_out(QemuOpts *opts)
{
int fd_out;
TFR(fd_out = open(qemu_opt_get(opts, "path"),
TFR(fd_out = qemu_open(qemu_opt_get(opts, "path"),
O_WRONLY | O_TRUNC | O_CREAT | O_BINARY, 0666));
if (fd_out < 0)
return NULL;
@ -640,8 +640,8 @@ static CharDriverState *qemu_chr_open_pipe(QemuOpts *opts)
snprintf(filename_in, 256, "%s.in", filename);
snprintf(filename_out, 256, "%s.out", filename);
TFR(fd_in = open(filename_in, O_RDWR | O_BINARY));
TFR(fd_out = open(filename_out, O_RDWR | O_BINARY));
TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY));
TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY));
if (fd_in < 0 || fd_out < 0) {
if (fd_in >= 0)
close(fd_in);
@ -2101,7 +2101,7 @@ static void tcp_chr_accept(void *opaque)
len = sizeof(saddr);
addr = (struct sockaddr *)&saddr;
}
fd = accept(s->listen_fd, addr, &len);
fd = qemu_accept(s->listen_fd, addr, &len);
if (fd < 0 && errno != EINTR) {
return;
} else if (fd >= 0) {