Fix misc. warnings from GCC when compiling with -fsanitize=undefined (#3787)

1 files changed, 8 insertions, 0 deletions

diff --git a/tools/src/misc/h5repart.c b/tools/src/misc/h5repart.c
index feb447f..12b2932 100644
--- a/tools/src/misc/h5repart.c
+++ b/tools/src/misc/h5repart.c
@@ -227,6 +227,10 @@ main(int argc, char *argv[])
     if (argno >= argc)
         usage(prog_name);
     src_gen_name = argv[argno++];
+    if (!src_gen_name) {
+        fprintf(stderr, "invalid source file name pointer");
+        exit(EXIT_FAILURE);
+    }
     snprintf(src_name, NAMELEN, src_gen_name, src_membno);
     src_is_family = strcmp(src_name, src_gen_name);
 
@@ -249,6 +253,10 @@ main(int argc, char *argv[])
     if (argno >= argc)
         usage(prog_name);
     dst_gen_name = argv[argno++];
+    if (!dst_gen_name) {
+        fprintf(stderr, "invalid destination file name pointer");
+        exit(EXIT_FAILURE);
+    }
     snprintf(dst_name, NAMELEN, dst_gen_name, dst_membno);
     dst_is_family = strcmp(dst_name, dst_gen_name);