[PATCH 3/3] syntax-check: Forbid use of qsort()

[Michal Privoznik]

Signed-off-by: Michal Privoznik <mpriv...@redhat.com>
---
 build-aux/syntax-check.mk | 7 +++++++
 tools/nss/libvirt_nss.c   | 3 ++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/build-aux/syntax-check.mk b/build-aux/syntax-check.mk
index 309ca0c29a..462bff72f8 100644
--- a/build-aux/syntax-check.mk
+++ b/build-aux/syntax-check.mk
@@ -248,6 +248,13 @@ sc_prohibit_canonicalize_file_name:
        halt='use virFileCanonicalizePath() instead of 
canonicalize_file_name()' \
          $(_sc_search_regexp)
 
+# qsort from glibc is unstable. Use g_qsort_with_data from glib instead
+sc_prohibit_qsort:
+       @prohibit='\<qsort\(' \
+       exclude='exempt from syntax-check' \
+       halt='use g_qsort_with_data instead of qsort' \
+         $(_sc_search_regexp)
+
 # Insist on correct types for [pug]id.
 sc_correct_id_types:
        @prohibit='\<(int|long) *[pug]id\>' \
diff --git a/tools/nss/libvirt_nss.c b/tools/nss/libvirt_nss.c
index ff6ea1d373..d79a00a1b0 100644
--- a/tools/nss/libvirt_nss.c
+++ b/tools/nss/libvirt_nss.c
@@ -71,7 +71,8 @@ sortAddr(leaseAddress *tmpAddress,
          size_t ntmpAddress)
 {
     if (tmpAddress)
-        qsort(tmpAddress, ntmpAddress, sizeof(*tmpAddress), 
leaseAddressSorter);
+        qsort(tmpAddress, ntmpAddress, /* exempt from syntax-check */
+              sizeof(*tmpAddress), leaseAddressSorter);
 }
 
 
-- 
2.41.0
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