X-Git-Url: http://www.privoxy.org/gitweb/?a=blobdiff_plain;f=miscutil.c;h=6298e9de1205a3d9c328f47ee03cfa510be40535;hb=f09cf90bb03348ea74740a292aa48813c55f1875;hp=499579f7f4b2eda4162174383f3d2be7cb512e2b;hpb=afa231b8e31bbf0489303df30d103db2d737cd18;p=privoxy.git

diff --git a/miscutil.c b/miscutil.c
index 499579f7..6298e9de 100644
--- a/miscutil.c
+++ b/miscutil.c
@@ -7,7 +7,7 @@
  *                to deserve their own file but don't really fit in
  *                any other file.
  *
- * Copyright   :  Written by and Copyright (C) 2001-2020 the
+ * Copyright   :  Written by and Copyright (C) 2001-2022 the
  *                Privoxy team. https://www.privoxy.org/
  *
  *                Based on the Internet Junkbuster originally written
@@ -242,7 +242,7 @@ void write_pid_file(const char *pid_file)
  *
  * Function    :  hash_string
  *
- * Description :  Take a string and compute a (hopefuly) unique numeric
+ * Description :  Take a string and compute a (hopefully) unique numeric
  *                integer value. This is useful to "switch" a string.
  *
  * Parameters  :
@@ -560,6 +560,43 @@ char *string_toupper(const char *string)
 }
 
 
+/*********************************************************************
+ *
+ * Function    :  string_tolower
+ *
+ * Description :  Produce a copy of string with all convertible
+ *                characters converted to lowercase.
+ *
+ * Parameters  :
+ *          1  :  string = string to convert
+ *
+ * Returns     :  Lowercase copy of string if possible,
+ *                NULL on out-of-memory or if string was NULL.
+ *
+ *********************************************************************/
+char *string_tolower(const char *string)
+{
+   char *result, *p;
+   const char *q;
+
+   if (!string || ((result = (char *)zalloc(strlen(string) + 1)) == NULL))
+   {
+      return NULL;
+   }
+
+   q = string;
+   p = result;
+
+   while (*q != '\0')
+   {
+      *p++ = (char)privoxy_tolower(*q++);
+   }
+
+   return result;
+
+}
+
+
 /*********************************************************************
  *
  * Function    :  string_move
@@ -596,7 +633,7 @@ void string_move(char *dst, char *src)
  *          1  :  string = string to be duplicated
  *          2  :  len = number of bytes to duplicate
  *
- * Returns     :  pointer to copy, or NULL if failiure
+ * Returns     :  pointer to copy, or NULL if failure
  *
  *********************************************************************/
 char *bindup(const char *string, size_t len)
@@ -663,8 +700,7 @@ char * make_path(const char * dir, const char * file)
           * Relative path, so start with the base directory.
           */
          path_size += strlen(basedir) + 1; /* +1 for the slash */
-         path = malloc(path_size);
-         if (!path) log_error(LOG_LEVEL_FATAL, "malloc failed!");
+         path = malloc_or_die(path_size);
          strlcpy(path, basedir, path_size);
          strlcat(path, "/", path_size);
          strlcat(path, dir, path_size);
@@ -672,8 +708,7 @@ char * make_path(const char * dir, const char * file)
       else
 #endif /* defined unix */
       {
-         path = malloc(path_size);
-         if (!path) log_error(LOG_LEVEL_FATAL, "malloc failed!");
+         path = malloc_or_die(path_size);
          strlcpy(path, dir, path_size);
       }
 
@@ -965,6 +1000,49 @@ time_t timegm(struct tm *tm)
 #endif /* !defined(HAVE_TIMEGM) && defined(HAVE_TZSET) && defined(HAVE_PUTENV) */
 
 
+/*********************************************************************
+ *
+ * Function    :  host_is_ip_address
+ *
+ * Description :  Checks whether or not a host is specified by
+ *                IP address. Does not actually validate the
+ *                address.
+ *
+ * Parameters  :
+ *          1  :  host = The host name to check
+ *
+ * Returns     :   1 => Yes
+ *                 0 => No
+ *
+ *********************************************************************/
+extern int host_is_ip_address(const char *host)
+{
+   const char *p;
+
+   if (NULL != strstr(host, ":"))
+   {
+      /* Assume an IPv6 address. */
+      return 1;
+   }
+
+   for (p = host; *p; p++)
+   {
+      if ((*p != '.') && !privoxy_isdigit(*p))
+      {
+         /* Not a dot or digit so it can't be an IPv4 address. */
+         return 0;
+      }
+   }
+
+   /*
+    * Host only consists of dots and digits so
+    * assume that is an IPv4 address.
+    */
+   return 1;
+
+}
+
+
 /*
   Local Variables:
   tab-width: 3