avoid strlwr

2021-12-18 11:12:43 +01:00
parent dd0b92ae6a
commit a070dd65d5
1 changed files with 3 additions and 2 deletions
@@ -1282,9 +1282,10 @@ int main(int argc, char* argv[]) {
    if (len<=1 || len>sizeof(envname)-3) { // no single char long args
      continue;
    }
-    strncpy(envopt, start, len);
+    for (size_t i=0; i<len; i++) {
+      envopt[i] = (char)tolower(start[i]);
+    }
    envopt[len] = 0;
-    strlwr(envopt);
    if (strcmp(envopt, "version")==0 || strcmp(envopt, "image")==0 || strcmp(envopt, "arch")==0
       || strcmp(envopt, "opts")==0 || strcmp(envopt, "inject")==0
       || strcmp(envopt, "checkconfig")==0 || strcmp(envopt, "dumpconfig")==0