TLS1.2 and command execution

utils.c

@@ -0,0 +1,59 @@
+/*-
+ * Copyright (c) 2024, Lorenzo Torres
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the <organization> nor the
+ *    names of its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <ctype.h>
+#include <string.h>
+#include <utils.h>
+
+void strstrip(char *str)
+{
+    int i, x;
+    for (i=x=0; str[i]; ++i) {
+        if (!isspace(str[i]) || (i > 0 && !isspace(str[i-1]))) {
+            str[x++] = str[i];
+        }
+        if (str[i] == '\t') {
+            str[i] = ' ';
+        }
+        if (str[i+1] == '\0' && isspace(str[i])) {
+            str[i] = '\0';
+        }
+    }
+    str[x] = '\0';
+}
+
+void strlower(char* str)
+{
+    strnlower(str, strlen(str));
+}
+
+void strnlower(char *str, size_t len)
+{
+    for (int i=0; i < len; i++) {
+        str[i] = tolower(str[i]);
+    }
+}