Turn local modifications of mocklibc into patches and apply them via …

…diff_files

The local copy of mocklibc was changed in
63ee649
5b8cd1a
0d78d1e

Turn those into patches and apply them via the diff_files mechanism.
This requires Meson 0.63.0, so bump the version accordingly.

https://mesonbuild.com/Wrap-dependency-system-manual.html#diff-files

meson.build

@@ -7,7 +7,7 @@ project(
     'prefix=/usr',
     'cpp_std=c++17',
   ],
-  meson_version: '>= 0.50.0',
+  meson_version: '>= 0.63.0',
 )
 
 pk_version = meson.project_version()

subprojects/mocklibc.wrap

@@ -8,3 +8,5 @@ source_hash = b2236a6af1028414783e9734a46ea051916ec226479d6a55a3bb823bff68f120
 patch_url = https://wrapdb.mesonbuild.com/v1/projects/mocklibc/1.0/2/get_zip
 patch_filename = mocklibc-1.0-2-wrap.zip
 patch_hash = 0280f96a2eeb3c023e5acf4e00cef03d362868218d4a85347ea45137c0ef6c56
+
+diff_files = 0001.patch, 0002.patch, 0003.patch

subprojects/packagefiles/0001.patch

@@ -0,0 +1,36 @@
+From: =?UTF-8?q?Miloslav=20Trma=C4=8D?= <[email protected]>
+Date: Sat, 13 Apr 2013 03:19:17 +0200
+Subject: [PATCH 1/3] Fix various memory leaks.
+
+The XML_ParserCreate_MM one was found by Florian Weimer in
+https://bugzilla.redhat.com/show_bug.cgi?id=888728 .
+
+This should cover everything found by valgrind on the JS authority
+test, augmented with a call to
+polkit_backend_authority_enumerate_actions() to verify the
+XML_ParserCreate_MM case.
+
+https://bugs.freedesktop.org/show_bug.cgi?id=63492
+---
+ src/netgroup.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/src/netgroup.c b/src/netgroup.c
+index f2ee857..bc99555 100644
+--- a/src/netgroup.c
++++ b/src/netgroup.c
+@@ -122,7 +122,10 @@ struct netgroup *netgroup_parse_all() {
+     char * line = NULL;
+     ssize_t line_size = getline(&line, &line_alloc, stream);
+     if (line_size == -1)
+-      break;
++      {
++	free(line);
++	break;
++      }
+
+     struct netgroup *nextgroup = netgroup_parse_line(line);
+     free(line);
+-- 
+2.43.0
+

subprojects/packagefiles/0002.patch

@@ -0,0 +1,27 @@
+From: Colin Walters <[email protected]>
+Date: Wed, 3 Jun 2015 16:31:12 -0400
+Subject: [PATCH 2/3] tests: Correct boundary test for overflow
+
+The offset has to be strictly less than the max.
+
+https://bugs.freedesktop.org/show_bug.cgi?id=87716
+---
+ src/netgroup.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/netgroup.c b/src/netgroup.c
+index bc99555..06a8a89 100644
+--- a/src/netgroup.c
++++ b/src/netgroup.c
+@@ -326,7 +326,7 @@ struct entry *netgroup_iter_next(struct netgroup_iter *iter) {
+
+       // Grow the stack
+       iter->depth++;
+-      if (iter->depth > NETGROUP_MAX_DEPTH) {
++      if (iter->depth >= NETGROUP_MAX_DEPTH) {
+         iter->depth = -1;
+         return NULL; // Too much recursion
+       }
+-- 
+2.43.0
+

subprojects/packagefiles/0003.patch

@@ -0,0 +1,69 @@
+From: Vincent Mihalkovic <[email protected]>
+Date: Fri, 8 Mar 2024 14:04:33 +0100
+Subject: [PATCH 3/3] mocklibc: move the print_indent function to the file
+ where it is used
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This fixes build error with GCC >= 14 and clang >= 17,
+failing on:
+```
+../subprojects/mocklibc-1.0/src/netgroup-debug.c:25:3: error: implicit declaration of function ‘print_indent’ [-Wimplicit-function-declaration]
+   25 |   print_indent(stream, indent);
+      |   ^~~~~~~~~~~~
+```
+
+Closes: #6
+---
+ src/netgroup-debug.c | 11 +++++++++++
+ src/netgroup.c       | 11 -----------
+ 2 files changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/src/netgroup-debug.c b/src/netgroup-debug.c
+index 81d6e72..46e5b25 100644
+--- a/src/netgroup-debug.c
++++ b/src/netgroup-debug.c
+@@ -21,6 +21,17 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+
++/**
++ * Print a varaible indentation to the stream.
++ * @param stream Stream to print to
++ * @param indent Number of indents to use
++ */
++static void print_indent(FILE *stream, unsigned int indent) {
++  int i;
++  for (i = 0; i < indent; i++)
++    fprintf(stream, "  ");
++}
++
+ void netgroup_debug_print_entry(struct entry *entry, FILE *stream, unsigned int indent) {
+   print_indent(stream, indent);
+
+diff --git a/src/netgroup.c b/src/netgroup.c
+index 06a8a89..e16e451 100644
+--- a/src/netgroup.c
++++ b/src/netgroup.c
+@@ -71,17 +71,6 @@ static char *parser_copy_word(char **cur) {
+   return result;
+ }
+
+-/**
+- * Print a varaible indentation to the stream.
+- * @param stream Stream to print to
+- * @param indent Number of indents to use
+- */
+-void print_indent(FILE *stream, unsigned int indent) {
+-  int i;
+-  for (i = 0; i < indent; i++)
+-    fprintf(stream, "  ");
+-}
+-
+ /**
+  * Connect entries with 'child' type to their child entries.
+  * @param headentry Head of list of entries that need to be connected
+-- 
+2.43.0
+