import: make check-pointer-deref clean

Add the needed assert changes to make the code clean
for the new check-pointer-deref script.

meson.build

@@ -2979,7 +2979,6 @@ if spatch.found()
         coccinelle_exclude = [
                 'src/basic/',
                 'src/core/',
-                'src/import/',
                 'src/journal/',
                 'src/libsystemd/',
                 'src/network/',

src/import/curl-util.c

@@ -359,6 +359,8 @@ int curl_header_strdup(const void *contents, size_t sz, const char *field, char
         const char *p;
         char *s;
 
+        assert(value);
+
         p = memory_startswith_no_case(contents, sz, field);
         if (!p)
                 return 0;

src/import/import-compress.c

@@ -318,6 +318,10 @@ static int enlarge_buffer(void **buffer, size_t *buffer_size, size_t *buffer_all
         size_t l;
         void *p;
 
+        assert(buffer);
+        assert(buffer_size);
+        assert(buffer_allocated);
+
         if (*buffer_allocated > *buffer_size)
                 return 0;
 

src/import/pull-common.c

@@ -622,6 +622,7 @@ int pull_job_restart_with_sha256sum(PullJob *j, char **ret) {
         int r;
 
         assert(j);
+        assert(ret);
 
         /* Generic implementation of a PullJobNotFound handler, that restarts the job requesting SHA256SUMS */
 

src/import/qcow2-util.c

@@ -150,6 +150,10 @@ static int normalize_offset(
                 bool *compressed,
                 uint64_t *compressed_size) {
 
+        assert(ret);
+        POINTER_MAY_BE_NULL(compressed);
+        POINTER_MAY_BE_NULL(compressed_size);
+
         uint64_t q;
 
         q = be64toh(p);