libpam_1.1.3.bb: Fix compilation on uclibc when innetgr is absent

(From OE-Core rev: a0d441ec7c43fe1b4490c1c9b03a0cf5811109fd)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 94 insertions, 0 deletions

diff --git a/meta/recipes-extended/pam/libpam/pam-no-innetgr.patch b/meta/recipes-extended/pam/libpam/pam-no-innetgr.patch
new file mode 100644
index 0000000000..e622a0d246
--- /dev/null
+++ b/meta/recipes-extended/pam/libpam/pam-no-innetgr.patch
@@ -0,0 +1,92 @@
+innetgr may not be there so make sure that when innetgr is not present
+then we inform about it and not use it.
+
+-Khem
+Index: Linux-PAM-1.1.3/modules/pam_group/pam_group.c
+===================================================================
+--- Linux-PAM-1.1.3.orig/modules/pam_group/pam_group.c
++++ Linux-PAM-1.1.3/modules/pam_group/pam_group.c
+@@ -659,7 +659,11 @@ static int check_account(pam_handle_t *p
+        }
+        /* If buffer starts with @, we are using netgroups */
+        if (buffer[0] == '@')
+-         good &= innetgr (&buffer[1], NULL, user, NULL);
++#ifdef HAVE_INNETGR
++           good &= innetgr (&buffer[1], NULL, user, NULL);
++#else
++           pam_syslog (pamh, LOG_ERR, "pam_group does not have netgroup support");
++#endif
+        /* otherwise, if the buffer starts with %, it's a UNIX group */
+        else if (buffer[0] == '%')
+           good &= pam_modutil_user_in_group_nam_nam(pamh, user, &buffer[1]);
+Index: Linux-PAM-1.1.3/modules/pam_time/pam_time.c
+===================================================================
+--- Linux-PAM-1.1.3.orig/modules/pam_time/pam_time.c
++++ Linux-PAM-1.1.3/modules/pam_time/pam_time.c
+@@ -555,9 +555,13 @@ check_account(pam_handle_t *pamh, const
+          }
+          /* If buffer starts with @, we are using netgroups */
+          if (buffer[0] == '@')
+-           good &= innetgr (&buffer[1], NULL, user, NULL);
++#ifdef HAVE_INNETGR
++              good &= innetgr (&buffer[1], NULL, user, NULL);
++#else
++              pam_syslog (pamh, LOG_ERR, "pam_time does not have netgroup support");
++#endif
+          else
+-           good &= logic_field(pamh, user, buffer, count, is_same);
++              good &= logic_field(pamh, user, buffer, count, is_same);
+          D(("with user: %s", good ? "passes":"fails" ));
+ 
+          /* here we get the time field */
+Index: Linux-PAM-1.1.3/modules/pam_succeed_if/pam_succeed_if.c
+===================================================================
+--- Linux-PAM-1.1.3.orig/modules/pam_succeed_if/pam_succeed_if.c
++++ Linux-PAM-1.1.3/modules/pam_succeed_if/pam_succeed_if.c
+@@ -231,18 +231,27 @@ evaluate_notingroup(pam_handle_t *pamh,
+ }
+ /* Return PAM_SUCCESS if the (host,user) is in the netgroup. */
+ static int
+-evaluate_innetgr(const char *host, const char *user, const char *group)
++evaluate_innetgr(const pam_handle_t* pamh, const char *host, const char *user, const char *group)
+ {
++#ifdef HAVE_INNETGR
+        if (innetgr(group, host, user, NULL) == 1)
+                return PAM_SUCCESS;
++#else
++        pam_syslog (pamh, LOG_ERR, "pam_succeed_if does not have netgroup support");
++#endif
++
+        return PAM_AUTH_ERR;
+ }
+ /* Return PAM_SUCCESS if the (host,user) is NOT in the netgroup. */
+ static int
+-evaluate_notinnetgr(const char *host, const char *user, const char *group)
++evaluate_notinnetgr(const pam_handle_t* pamh, const char *host, const char *user, const char *group)
+ {
++#ifdef HAVE_INNETGR
+        if (innetgr(group, host, user, NULL) == 0)
+                return PAM_SUCCESS;
++#else
++       pam_syslog (pamh, LOG_ERR, "pam_succeed_if does not have netgroup support");
++#endif
+        return PAM_AUTH_ERR;
+ }
+ 
+@@ -361,14 +370,14 @@ evaluate(pam_handle_t *pamh, int debug,
+                const void *rhost;
+                if (pam_get_item(pamh, PAM_RHOST, &rhost) != PAM_SUCCESS)
+                        rhost = NULL;
+-               return evaluate_innetgr(rhost, user, right);
++               return evaluate_innetgr(pamh, rhost, user, right);
+        }
+        /* (Rhost, user) is not in this group. */
+        if (strcasecmp(qual, "notinnetgr") == 0) {
+                const void *rhost;
+                if (pam_get_item(pamh, PAM_RHOST, &rhost) != PAM_SUCCESS)
+                        rhost = NULL;
+-               return evaluate_notinnetgr(rhost, user, right);
++               return evaluate_notinnetgr(pamh, rhost, user, right);
+        }
+        /* Fail closed. */
+        return PAM_SERVICE_ERR;
diff --git a/meta/recipes-extended/pam/libpam_1.1.3.bb b/meta/recipes-extended/pam/libpam_1.1.3.bb
index 9d6c317426..b62e2f27a0 100644
--- a/meta/recipes-extended/pam/libpam_1.1.3.bb
+++ b/meta/recipes-extended/pam/libpam_1.1.3.bb
@@ -19,6 +19,8 @@ SRC_URI = "${KERNELORG_MIRROR}/linux/libs/pam/library/Linux-PAM-${PV}.tar.bz2 \
            file://99_pam \
            file://pam.d/*"
 
+SRC_URI_append_libc-uclibc = " file://pam-no-innetgr.patch"
+
 SRC_URI[md5sum] = "6db7fcb5db6253350e3a4648ceac40e7"
 SRC_URI[sha256sum] = "17b268789b935a76e736a1150210dd12f156972973e79347668f828d43632652"