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daemon: Resolve Coverity RESOURCE_LEAK

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With eblake's help - adjust the checks for stdinfd/stdoutfd to ensure the
values are within the range we expect; otherwise the dup2()'s and subsequent
VIR_CLOSE() calls cause Coverity to believe there's a resource leak.

Signed-off-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
John Ferlan 2014-09-11 16:58:40 -04:00
parent be365d8dff
commit c77ac79d6b
1 changed files with 4 additions and 4 deletions
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8
daemon/libvirtd.c
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@ -163,9 +163,9 @@ static int daemonForkIntoBackground(const char *argv0)
VIR_FORCE_CLOSE(statuspipe[0]);
if ((stdinfd = open("/dev/null", O_RDONLY)) < 0)
if ((stdinfd = open("/dev/null", O_RDONLY)) <= STDERR_FILENO)
goto cleanup;
if ((stdoutfd = open("/dev/null", O_WRONLY)) < 0)
if ((stdoutfd = open("/dev/null", O_WRONLY)) <= STDERR_FILENO)
goto cleanup;
if (dup2(stdinfd, STDIN_FILENO) != STDIN_FILENO)
goto cleanup;
@ -173,9 +173,9 @@ static int daemonForkIntoBackground(const char *argv0)
goto cleanup;
if (dup2(stdoutfd, STDERR_FILENO) != STDERR_FILENO)
goto cleanup;
if (stdinfd > STDERR_FILENO && VIR_CLOSE(stdinfd) < 0)
if (VIR_CLOSE(stdinfd) < 0)
goto cleanup;
if (stdoutfd > STDERR_FILENO && VIR_CLOSE(stdoutfd) < 0)
if (VIR_CLOSE(stdoutfd) < 0)
goto cleanup;
if (setsid() < 0)