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75a4a592e5
Mon Apr 25 13:37:00 UTC 2011 Slackware 13.37 x86_64 stable is released! Thanks to everyone who pitched in on this release: the Slackware team, the folks producing upstream code, and linuxquestions.org for providing a great forum for collaboration and testing. The ISOs are off to be replicated, a 6 CD-ROM 32-bit set and a dual-sided 32-bit/64-bit x86/x86_64 DVD. Please consider supporting the Slackware project by picking up a copy from store.slackware.com. We're taking pre-orders now, and offer a discount if you sign up for a subscription. As always, thanks to the Slackware community for testing, suggestions, and feedback. :-) Have fun!
98 lines
3.8 KiB
Diff
98 lines
3.8 KiB
Diff
diff -up Linux-PAM-1.0.91/modules/pam_mkhomedir/pam_mkhomedir.c.std-noclose Linux-PAM-1.0.91/modules/pam_mkhomedir/pam_mkhomedir.c
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--- Linux-PAM-1.0.91/modules/pam_mkhomedir/pam_mkhomedir.c.std-noclose 2009-03-03 14:56:01.000000000 +0100
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+++ Linux-PAM-1.0.91/modules/pam_mkhomedir/pam_mkhomedir.c 2009-03-26 10:02:15.000000000 +0100
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@@ -131,13 +131,21 @@ create_homedir (pam_handle_t *pamh, int
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if (child == 0) {
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int i;
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struct rlimit rlim;
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+ int dummyfds[2];
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static char *envp[] = { NULL };
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char *args[] = { NULL, NULL, NULL, NULL, NULL };
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+ /* replace std file descriptors with a dummy pipe */
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+ if (pipe(dummyfds) == 0) {
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+ dup2(dummyfds[0], STDIN_FILENO);
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+ dup2(dummyfds[1], STDOUT_FILENO);
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+ dup2(dummyfds[1], STDERR_FILENO);
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+ }
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+
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if (getrlimit(RLIMIT_NOFILE, &rlim)==0) {
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if (rlim.rlim_max >= MAX_FD_NO)
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rlim.rlim_max = MAX_FD_NO;
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- for (i=0; i < (int)rlim.rlim_max; i++) {
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+ for (i = STDERR_FILENO + 1; i < (int)rlim.rlim_max; i++) {
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close(i);
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}
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}
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diff -up Linux-PAM-1.0.91/modules/pam_unix/support.c.std-noclose Linux-PAM-1.0.91/modules/pam_unix/support.c
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--- Linux-PAM-1.0.91/modules/pam_unix/support.c.std-noclose 2009-03-03 14:56:01.000000000 +0100
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+++ Linux-PAM-1.0.91/modules/pam_unix/support.c 2009-03-26 10:08:59.000000000 +0100
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@@ -443,13 +443,16 @@ static int _unix_run_helper_binary(pam_h
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/* reopen stdin as pipe */
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dup2(fds[0], STDIN_FILENO);
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+ /* and replace also the stdout/err as the helper will
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+ not write anything there */
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+ dup2(fds[1], STDOUT_FILENO);
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+ dup2(fds[1], STDERR_FILENO);
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if (getrlimit(RLIMIT_NOFILE,&rlim)==0) {
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if (rlim.rlim_max >= MAX_FD_NO)
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rlim.rlim_max = MAX_FD_NO;
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- for (i=0; i < (int)rlim.rlim_max; i++) {
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- if (i != STDIN_FILENO)
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- close(i);
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+ for (i = STDERR_FILENO + 1; i < (int)rlim.rlim_max; i++) {
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+ close(i);
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}
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}
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diff -up Linux-PAM-1.0.91/modules/pam_unix/pam_unix_passwd.c.std-noclose Linux-PAM-1.0.91/modules/pam_unix/pam_unix_passwd.c
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--- Linux-PAM-1.0.91/modules/pam_unix/pam_unix_passwd.c.std-noclose 2009-03-03 14:56:01.000000000 +0100
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+++ Linux-PAM-1.0.91/modules/pam_unix/pam_unix_passwd.c 2009-03-26 10:07:06.000000000 +0100
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@@ -175,13 +175,16 @@ static int _unix_run_update_binary(pam_h
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/* reopen stdin as pipe */
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dup2(fds[0], STDIN_FILENO);
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+ /* and replace also the stdout/err as the helper will
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+ not write anything there */
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+ dup2(fds[1], STDOUT_FILENO);
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+ dup2(fds[1], STDERR_FILENO);
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if (getrlimit(RLIMIT_NOFILE,&rlim)==0) {
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if (rlim.rlim_max >= MAX_FD_NO)
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rlim.rlim_max = MAX_FD_NO;
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- for (i=0; i < (int)rlim.rlim_max; i++) {
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- if (i != STDIN_FILENO)
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- close(i);
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+ for (i = STDERR_FILENO + 1; i < (int)rlim.rlim_max; i++) {
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+ close(i);
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}
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}
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diff -up Linux-PAM-1.0.91/modules/pam_unix/pam_unix_acct.c.std-noclose Linux-PAM-1.0.91/modules/pam_unix/pam_unix_acct.c
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--- Linux-PAM-1.0.91/modules/pam_unix/pam_unix_acct.c.std-noclose 2009-03-03 14:56:01.000000000 +0100
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+++ Linux-PAM-1.0.91/modules/pam_unix/pam_unix_acct.c 2009-03-26 10:05:41.000000000 +0100
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@@ -100,16 +100,18 @@ int _unix_run_verify_binary(pam_handle_t
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/* reopen stdout as pipe */
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dup2(fds[1], STDOUT_FILENO);
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+ /* and replace also the stdin, stderr so we do not exec the helper with
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+ tty as stdin, it will not read anything from there anyway */
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+ dup2(fds[0], STDIN_FILENO);
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+ dup2(fds[1], STDERR_FILENO);
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/* XXX - should really tidy up PAM here too */
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if (getrlimit(RLIMIT_NOFILE,&rlim)==0) {
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if (rlim.rlim_max >= MAX_FD_NO)
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rlim.rlim_max = MAX_FD_NO;
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- for (i=0; i < (int)rlim.rlim_max; i++) {
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- if (i != STDOUT_FILENO) {
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- close(i);
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- }
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+ for (i = STDERR_FILENO + 1; i < (int)rlim.rlim_max; i++) {
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+ close(i);
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}
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}
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