Replace memccpy(3) by snprintf(3)

Author: flx42

config.c

@@ -1,7 +1,8 @@
 /*
- * Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2020-2025, NVIDIA CORPORATION. All rights reserved.
  */
 
+#include <stdio.h>
 #include <string.h>
 
 #include <slurm/spank.h>
@@ -39,7 +40,8 @@ int pyxis_config_parse(struct plugin_config *config, int ac, char **av)
 	for (int i = 0; i < ac; ++i) {
 		if (strncmp("runtime_path=", av[i], 13) == 0) {
 			optarg = av[i] + 13;
-			if (memccpy(config->runtime_path, optarg, '\0', sizeof(config->runtime_path)) == NULL) {
+			ret = snprintf(config->runtime_path, sizeof(config->runtime_path), "%s", optarg);
+			if (ret < 0 || ret >= sizeof(config->runtime_path)) {
 				slurm_error("pyxis: runtime_path: path too long: %s", optarg);
 				return (-1);
 			}

pyxis_slurmstepd.c

@@ -820,7 +820,8 @@ static int enroot_create_start_config(char (*path)[PATH_MAX])
 		}
 	}
 
-	if (memccpy(*path, template, '\0', sizeof(*path)) == NULL)
+	ret = snprintf(*path, sizeof(*path), "%s", template);
+	if (ret < 0 || ret >= sizeof(*path))
 		goto fail;
 
 	rv = 0;
@@ -1346,7 +1347,8 @@ static int enroot_container_export(void)
 	char path[PATH_MAX];
 
 	if (context.container.save_path[0] == '/') {
-		if (memccpy(path, context.container.save_path, '\0', sizeof(path)) == NULL)
+		ret = snprintf(path, sizeof(path), "%s", context.container.save_path);
+		if (ret < 0 || ret >= sizeof(path))
 			return (-1);
 	} else {
 		if (context.job.cwd[0] == '\0') {