[multiple] use *(unsigned char *) with ctypes

src/configparser.y

@@ -331,7 +331,7 @@ value(A) ::= INTEGER(B). {
   errno = 0;
   ((data_integer *)(A))->value = strtol(B->ptr, &endptr, 10);
   /* skip trailing whitespace */
-  if (endptr != B->ptr) while (isspace(*endptr)) endptr++;
+  if (endptr != B->ptr) while (isspace(*(unsigned char *)endptr)) endptr++;
   if (0 != errno || *endptr != '\0') {
     fprintf(stderr, "error parsing number: '%s'\n", B->ptr);
     ctx->ok = 0;

src/mod_ssi.c

@@ -939,7 +939,7 @@ static int process_ssi_stmt(request_st * const r, handler_ctx * const p, const c
 
 }
 
-static int mod_ssi_parse_ssi_stmt_value(const char * const s, const int len) {
+static int mod_ssi_parse_ssi_stmt_value(const unsigned char * const s, const int len) {
 	int n;
 	const int c = (s[0] == '"' ? '"' : s[0] == '\'' ? '\'' : 0);
 	if (0 != c) {
@@ -963,7 +963,7 @@ static int mod_ssi_parse_ssi_stmt_value(const char * const s, const int len) {
 	}
 }
 
-static int mod_ssi_parse_ssi_stmt_offlen(int o[10], const char * const s, const int len) {
+static int mod_ssi_parse_ssi_stmt_offlen(int o[10], const unsigned char * const s, const int len) {
 
 	/**
 	 * <!--#element attribute=value attribute=value ... -->
@@ -1021,7 +1021,7 @@ static void mod_ssi_parse_ssi_stmt(request_st * const r, handler_ctx * const p,
 
 	int o[10];
 	int m;
-	const int n = mod_ssi_parse_ssi_stmt_offlen(o, s, len);
+	const int n = mod_ssi_parse_ssi_stmt_offlen(o, (unsigned char *)s, len);
 	char *l[6] = { s, NULL, NULL, NULL, NULL, NULL };
 	if (-1 == n) {
 		/* ignore <!--#comment ... --> */

src/mod_ssi_expr.c

@@ -201,9 +201,9 @@ static int ssi_expr_tokenizer(handler_ctx *p,
 
 				buffer_copy_string_len(token, t->input + t->offset + 2, i-3);
 			} else {
-				for (i = 1; isalpha(t->input[t->offset + i]) ||
+				for (i = 1; isalpha(((unsigned char *)t->input)[t->offset + i]) ||
 					    t->input[t->offset + i] == '_' ||
-					    ((i > 1) && isdigit(t->input[t->offset + i]));  i++);
+					    ((i > 1) && isdigit(((unsigned char *)t->input)[t->offset + i]));  i++);
 
 				buffer_copy_string_len(token, t->input + t->offset + 1, i-1);
 			}
@@ -223,7 +223,7 @@ static int ssi_expr_tokenizer(handler_ctx *p,
 
 			break;
 		default:
-			for (i = 0; isgraph(t->input[t->offset + i]);  i++) {
+			for (i = 0; isgraph(((unsigned char *)t->input)[t->offset + i]);  i++) {
 				char d = t->input[t->offset + i];
 				switch(d) {
 				case ' ':

src/mod_webdav.c

@@ -270,11 +270,13 @@ int mod_webdav_plugin_init(plugin *p) {
         strncmp((const char *)(s), (fixed), sizeof(fixed))
 
 #include <ctype.h>      /* isupper() tolower() */
+__attribute_noinline__
 static void
-webdav_str_len_to_lower (char * const restrict s, const uint32_t len)
+webdav_str_len_to_lower (char * const ss, const uint32_t len)
 {
     /*(caller must ensure that len not truncated to (int);
      * for current intended use, NAME_MAX typically <= 255)*/
+    unsigned char * const restrict s = (unsigned char *)ss;
     for (int i = 0; i < (int)len; ++i) {
         if (isupper(s[i]))
             s[i] = tolower(s[i]);