Check return values of various join-related functions, and ensure we always

compare push_* returns with (size_t)-1, not < 0.

Andrew Bartlett
(This used to be commit 63f5e92536c6bcac54b796d6e91b755e7d328f66)

1 files changed, 16 insertions, 9 deletions

diff --git a/source3/libads/ldap.c b/source3/libads/ldap.c
index c92e481078..b7cfc8d84c 100644
--- a/source3/libads/ldap.c
+++ b/source3/libads/ldap.c
@@ -426,10 +426,10 @@ ADS_STATUS ads_do_paged_search(ADS_STRUCT *ads, const char *bind_path,
 		return ADS_ERROR(LDAP_NO_MEMORY);
 
 	/* 0 means the conversion worked but the result was empty 
-	   so we only fail if it's negative.  In any case, it always 
+	   so we only fail if it's -1.  In any case, it always 
 	   at least nulls out the dest */
-	if ((push_utf8_talloc(ctx, &utf8_exp, exp) < 0) ||
-	    (push_utf8_talloc(ctx, &utf8_path, bind_path) < 0)) {
+	if ((push_utf8_talloc(ctx, &utf8_exp, exp) == (size_t)-1) ||
+	    (push_utf8_talloc(ctx, &utf8_path, bind_path) == (size_t)-1)) {
 		rc = LDAP_NO_MEMORY;
 		goto done;
 	}
@@ -652,8 +652,8 @@ ADS_STATUS ads_do_search(ADS_STRUCT *ads, const char *bind_path, int scope,
 	/* 0 means the conversion worked but the result was empty 
 	   so we only fail if it's negative.  In any case, it always 
 	   at least nulls out the dest */
-	if ((push_utf8_talloc(ctx, &utf8_exp, exp) < 0) ||
-	    (push_utf8_talloc(ctx, &utf8_path, bind_path) < 0)) {
+	if ((push_utf8_talloc(ctx, &utf8_exp, exp) == (size_t)-1) ||
+	    (push_utf8_talloc(ctx, &utf8_path, bind_path) == (size_t)-1)) {
 		DEBUG(1,("ads_do_search: push_utf8_talloc() failed!"));
 		rc = LDAP_NO_MEMORY;
 		goto done;
@@ -1432,8 +1432,8 @@ ADS_STATUS ads_set_machine_sd(ADS_STRUCT *ads, const char *hostname, char *dn)
 	NTSTATUS    status;
 	ADS_STATUS  ret;
 	DOM_SID     sid;
-	SEC_DESC   *psd = 0;
-	TALLOC_CTX *ctx = 0;	
+	SEC_DESC   *psd = NULL;
+	TALLOC_CTX *ctx = NULL;	
 
 	/* Avoid segmentation fault in prs_mem_free if
 	 * we have to bail out before prs_init */
@@ -1464,7 +1464,11 @@ ADS_STATUS ads_set_machine_sd(ADS_STRUCT *ads, const char *hostname, char *dn)
 		goto ads_set_sd_error;
 	}
 
-	ads_pull_sid(ads, msg, attrs[1], &sid);	
+	if (!ads_pull_sid(ads, msg, attrs[1], &sid)) {
+		ret = ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
+		goto ads_set_sd_error;
+	}
+
 	if (!(ctx = talloc_init("sec_io_desc"))) {
 		ret =  ADS_ERROR(LDAP_NO_MEMORY);
 		goto ads_set_sd_error;
@@ -1482,7 +1486,10 @@ ADS_STATUS ads_set_machine_sd(ADS_STRUCT *ads, const char *hostname, char *dn)
 		goto ads_set_sd_error;
 	}
 
-	prs_init(&ps_wire, sd_size, ctx, MARSHALL);
+	if (!prs_init(&ps_wire, sd_size, ctx, MARSHALL)) {
+		ret = ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
+	}
+
 	if (!sec_io_desc("sd_wire", &psd, &ps_wire, 1)) {
 		ret = ADS_ERROR(LDAP_NO_MEMORY);
 		goto ads_set_sd_error;