UnGNUify the codebase

1 files changed, 7 insertions, 5 deletions

diff --git a/sway/commands/set.c b/sway/commands/set.c
index 8b293825..1d6bce04 100644
--- a/sway/commands/set.c
+++ b/sway/commands/set.c
@@ -1,5 +1,7 @@
+#define _XOPEN_SOURCE 500
 #include <stdio.h>
 #include <string.h>
+#include <strings.h>
 #include "sway/commands.h"
 #include "sway/config.h"
 #include "list.h"
@@ -14,7 +16,6 @@ static int compare_set_qsort(const void *_l, const void *_r) {
 
 struct cmd_results *cmd_set(int argc, char **argv) {
         char *tmp;
-        int size;
         struct cmd_results *error = NULL;
         if (!config->reading) return cmd_results_new(CMD_FAILURE, "set", "Can only be used in config file.");
         if ((error = checkarg(argc, "set", EXPECTED_AT_LEAST, 2))) {
@@ -24,13 +25,14 @@ struct cmd_results *cmd_set(int argc, char **argv) {
         if (argv[0][0] != '$') {
                 sway_log(L_INFO, "Warning: variable '%s' doesn't start with $", argv[0]);
 
-                size = asprintf(&tmp, "%s%s", "$", argv[0]);
-                if (size == -1) {
+                size_t size = snprintf(NULL, 0, "$%s", argv[0]);
+                tmp = malloc(size + 1);
+                if (!tmp) {
                         return cmd_results_new(CMD_FAILURE, "set", "Not possible to create variable $'%s'", argv[0]);
                 }
+                snprintf(tmp, size, "$%s", argv[0]);
 
-                argv[0] = strdup(tmp);
-                free(tmp);
+                argv[0] = tmp;
         }
 
         struct sway_variable *var = NULL;