diff --git a/docs/examples/fopen.c b/docs/examples/fopen.c
new file mode 100644
index 0000000..1310993
--- /dev/null
+++ b/docs/examples/fopen.c
@@ -0,0 +1,573 @@
+/*****************************************************************************
+ *
+ * This example source code introduces a c library buffered I/O interface to
+ * URL reads it supports fopen(), fread(), fgets(), feof(), fclose(),
+ * rewind(). Supported functions have identical prototypes to their normal c
+ * lib namesakes and are preceaded by url_ .
+ *
+ * Using this code you can replace your program's fopen() with url_fopen()
+ * and fread() with url_fread() and it become possible to read remote streams
+ * instead of (only) local files. Local files (ie those that can be directly
+ * fopened) will drop back to using the underlying clib implementations
+ *
+ * See the main() function at the bottom that shows an app that retrives from a
+ * specified url using fgets() and fread() and saves as two output files.
+ *
+ * Copyright (c) 2003 Simtec Electronics
+ *
+ * Re-implemented by Vincent Sanders <vince@kyllikki.org> with extensive
+ * reference to original curl example code
+ *
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
+ *
+ * This example requires libcurl 7.9.7 or later.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#ifndef WIN32
+#  include <sys/time.h>
+#endif
+#include <stdlib.h>
+#include <errno.h>
+
+#include <curl/curl.h>
+
+enum fcurl_type_e { CFTYPE_NONE=0, CFTYPE_FILE=1, CFTYPE_CURL=2 };
+
+struct fcurl_data
+{
+    enum fcurl_type_e type;     /* type of handle */
+    union {
+        CURL *curl;
+        FILE *file;
+    } handle;                   /* handle */
+
+    char *buffer;               /* buffer to store cached data*/
+    int buffer_len;             /* currently allocated buffers length */
+    int buffer_pos;             /* end of data in buffer*/
+    int still_running;          /* Is background url fetch still in progress */
+};
+
+typedef struct fcurl_data URL_FILE;
+
+/* exported functions */
+URL_FILE *url_fopen(const char *url,const char *operation);
+int url_fclose(URL_FILE *file);
+int url_feof(URL_FILE *file);
+size_t url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file);
+char * url_fgets(char *ptr, int size, URL_FILE *file);
+void url_rewind(URL_FILE *file);
+
+/* we use a global one for convenience */
+CURLM *multi_handle;
+
+/* curl calls this routine to get more data */
+static size_t
+write_callback(char *buffer,
+               size_t size,
+               size_t nitems,
+               void *userp)
+{
+    char *newbuff;
+    int rembuff;
+
+    URL_FILE *url = (URL_FILE *)userp;
+    size *= nitems;
+
+    rembuff=url->buffer_len - url->buffer_pos; /* remaining space in buffer */
+
+    if(size > rembuff)
+    {
+        /* not enough space in buffer */
+        newbuff=realloc(url->buffer,url->buffer_len + (size - rembuff));
+        if(newbuff==NULL)
+        {
+            fprintf(stderr,"callback buffer grow failed\n");
+            size=rembuff;
+        }
+        else
+        {
+            /* realloc suceeded increase buffer size*/
+            url->buffer_len+=size - rembuff;
+            url->buffer=newbuff;
+
+            /*printf("Callback buffer grown to %d bytes\n",url->buffer_len);*/
+        }
+    }
+
+    memcpy(&url->buffer[url->buffer_pos], buffer, size);
+    url->buffer_pos += size;
+
+    /*fprintf(stderr, "callback %d size bytes\n", size);*/
+
+    return size;
+}
+
+/* use to attempt to fill the read buffer up to requested number of bytes */
+static int
+fill_buffer(URL_FILE *file,int want,int waittime)
+{
+    fd_set fdread;
+    fd_set fdwrite;
+    fd_set fdexcep;
+    struct timeval timeout;
+    int rc;
+
+    /* only attempt to fill buffer if transactions still running and buffer
+     * doesnt exceed required size already
+     */
+    if((!file->still_running) || (file->buffer_pos > want))
+        return 0;
+
+    /* attempt to fill buffer */
+    do
+    {
+        int maxfd = -1;
+        long curl_timeo = -1;
+
+        FD_ZERO(&fdread);
+        FD_ZERO(&fdwrite);
+        FD_ZERO(&fdexcep);
+
+        /* set a suitable timeout to fail on */
+        timeout.tv_sec = 60; /* 1 minute */
+        timeout.tv_usec = 0;
+
+        curl_multi_timeout(multi_handle, &curl_timeo);
+        if(curl_timeo >= 0) {
+          timeout.tv_sec = curl_timeo / 1000;
+          if(timeout.tv_sec > 1)
+            timeout.tv_sec = 1;
+          else
+            timeout.tv_usec = (curl_timeo % 1000) * 1000;
+        }
+
+        /* get file descriptors from the transfers */
+        curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
+
+        /* In a real-world program you OF COURSE check the return code of the
+           function calls.  On success, the value of maxfd is guaranteed to be
+           greater or equal than -1.  We call select(maxfd + 1, ...), specially
+           in case of (maxfd == -1), we call select(0, ...), which is basically
+           equal to sleep. */
+
+        rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
+
+        switch(rc) {
+        case -1:
+            /* select error */
+            break;
+
+        case 0:
+            break;
+
+        default:
+            /* timeout or readable/writable sockets */
+            curl_multi_perform(multi_handle, &file->still_running);
+            break;
+        }
+    } while(file->still_running && (file->buffer_pos < want));
+    return 1;
+}
+
+/* use to remove want bytes from the front of a files buffer */
+static int
+use_buffer(URL_FILE *file,int want)
+{
+    /* sort out buffer */
+    if((file->buffer_pos - want) <=0)
+    {
+        /* ditch buffer - write will recreate */
+        if(file->buffer)
+            free(file->buffer);
+
+        file->buffer=NULL;
+        file->buffer_pos=0;
+        file->buffer_len=0;
+    }
+    else
+    {
+        /* move rest down make it available for later */
+        memmove(file->buffer,
+                &file->buffer[want],
+                (file->buffer_pos - want));
+
+        file->buffer_pos -= want;
+    }
+    return 0;
+}
+
+
+
+URL_FILE *
+url_fopen(const char *url,const char *operation)
+{
+    /* this code could check for URLs or types in the 'url' and
+       basicly use the real fopen() for standard files */
+
+    URL_FILE *file;
+    (void)operation;
+
+    file = malloc(sizeof(URL_FILE));
+    if(!file)
+        return NULL;
+
+    memset(file, 0, sizeof(URL_FILE));
+
+    if((file->handle.file=fopen(url,operation)))
+    {
+        file->type = CFTYPE_FILE; /* marked as URL */
+    }
+    else
+    {
+        file->type = CFTYPE_CURL; /* marked as URL */
+        file->handle.curl = curl_easy_init();
+
+        curl_easy_setopt(file->handle.curl, CURLOPT_URL, url);
+        curl_easy_setopt(file->handle.curl, CURLOPT_WRITEDATA, file);
+        curl_easy_setopt(file->handle.curl, CURLOPT_VERBOSE, 0L);
+        curl_easy_setopt(file->handle.curl, CURLOPT_WRITEFUNCTION, write_callback);
+
+        if(!multi_handle)
+            multi_handle = curl_multi_init();
+
+        curl_multi_add_handle(multi_handle, file->handle.curl);
+
+        /* lets start the fetch */
+        curl_multi_perform(multi_handle, &file->still_running);
+
+        if((file->buffer_pos == 0) && (!file->still_running))
+        {
+            /* if still_running is 0 now, we should return NULL */
+
+            /* make sure the easy handle is not in the multi handle anymore */
+            curl_multi_remove_handle(multi_handle, file->handle.curl);
+
+            /* cleanup */
+            curl_easy_cleanup(file->handle.curl);
+
+            free(file);
+
+            file = NULL;
+        }
+    }
+    return file;
+}
+
+int
+url_fclose(URL_FILE *file)
+{
+    int ret=0;/* default is good return */
+
+    switch(file->type)
+    {
+    case CFTYPE_FILE:
+        ret=fclose(file->handle.file); /* passthrough */
+        break;
+
+    case CFTYPE_CURL:
+        /* make sure the easy handle is not in the multi handle anymore */
+        curl_multi_remove_handle(multi_handle, file->handle.curl);
+
+        /* cleanup */
+        curl_easy_cleanup(file->handle.curl);
+        break;
+
+    default: /* unknown or supported type - oh dear */
+        ret=EOF;
+        errno=EBADF;
+        break;
+
+    }
+
+    if(file->buffer)
+        free(file->buffer);/* free any allocated buffer space */
+
+    free(file);
+
+    return ret;
+}
+
+int
+url_feof(URL_FILE *file)
+{
+    int ret=0;
+
+    switch(file->type)
+    {
+    case CFTYPE_FILE:
+        ret=feof(file->handle.file);
+        break;
+
+    case CFTYPE_CURL:
+        if((file->buffer_pos == 0) && (!file->still_running))
+            ret = 1;
+        break;
+    default: /* unknown or supported type - oh dear */
+        ret=-1;
+        errno=EBADF;
+        break;
+    }
+    return ret;
+}
+
+size_t
+url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file)
+{
+    size_t want;
+
+    switch(file->type)
+    {
+    case CFTYPE_FILE:
+        want=fread(ptr,size,nmemb,file->handle.file);
+        break;
+
+    case CFTYPE_CURL:
+        want = nmemb * size;
+
+        fill_buffer(file,want,1);
+
+        /* check if theres data in the buffer - if not fill_buffer()
+         * either errored or EOF */
+        if(!file->buffer_pos)
+            return 0;
+
+        /* ensure only available data is considered */
+        if(file->buffer_pos < want)
+            want = file->buffer_pos;
+
+        /* xfer data to caller */
+        memcpy(ptr, file->buffer, want);
+
+        use_buffer(file,want);
+
+        want = want / size;     /* number of items - nb correct op - checked
+                                 * with glibc code*/
+
+        /*printf("(fread) return %d bytes %d left\n", want,file->buffer_pos);*/
+        break;
+
+    default: /* unknown or supported type - oh dear */
+        want=0;
+        errno=EBADF;
+        break;
+
+    }
+    return want;
+}
+
+char *
+url_fgets(char *ptr, int size, URL_FILE *file)
+{
+    int want = size - 1;/* always need to leave room for zero termination */
+    int loop;
+
+    switch(file->type)
+    {
+    case CFTYPE_FILE:
+        ptr = fgets(ptr,size,file->handle.file);
+        break;
+
+    case CFTYPE_CURL:
+        fill_buffer(file,want,1);
+
+        /* check if theres data in the buffer - if not fill either errored or
+         * EOF */
+        if(!file->buffer_pos)
+            return NULL;
+
+        /* ensure only available data is considered */
+        if(file->buffer_pos < want)
+            want = file->buffer_pos;
+
+        /*buffer contains data */
+        /* look for newline or eof */
+        for(loop=0;loop < want;loop++)
+        {
+            if(file->buffer[loop] == '\n')
+            {
+                want=loop+1;/* include newline */
+                break;
+            }
+        }
+
+        /* xfer data to caller */
+        memcpy(ptr, file->buffer, want);
+        ptr[want]=0;/* allways null terminate */
+
+        use_buffer(file,want);
+
+        /*printf("(fgets) return %d bytes %d left\n", want,file->buffer_pos);*/
+        break;
+
+    default: /* unknown or supported type - oh dear */
+        ptr=NULL;
+        errno=EBADF;
+        break;
+    }
+
+    return ptr;/*success */
+}
+
+void
+url_rewind(URL_FILE *file)
+{
+    switch(file->type)
+    {
+    case CFTYPE_FILE:
+        rewind(file->handle.file); /* passthrough */
+        break;
+
+    case CFTYPE_CURL:
+        /* halt transaction */
+        curl_multi_remove_handle(multi_handle, file->handle.curl);
+
+        /* restart */
+        curl_multi_add_handle(multi_handle, file->handle.curl);
+
+        /* ditch buffer - write will recreate - resets stream pos*/
+        if(file->buffer)
+            free(file->buffer);
+
+        file->buffer=NULL;
+        file->buffer_pos=0;
+        file->buffer_len=0;
+
+        break;
+
+    default: /* unknown or supported type - oh dear */
+        break;
+
+    }
+
+}
+
+
+/* Small main program to retrive from a url using fgets and fread saving the
+ * output to two test files (note the fgets method will corrupt binary files if
+ * they contain 0 chars */
+int
+main(int argc, char *argv[])
+{
+    URL_FILE *handle;
+    FILE *outf;
+
+    int nread;
+    char buffer[256];
+    const char *url;
+
+    if(argc < 2)
+    {
+        url="http://192.168.7.3/testfile";/* default to testurl */
+    }
+    else
+    {
+        url=argv[1];/* use passed url */
+    }
+
+    /* copy from url line by line with fgets */
+    outf=fopen("fgets.test","w+");
+    if(!outf)
+    {
+        perror("couldn't open fgets output file\n");
+        return 1;
+    }
+
+    handle = url_fopen(url, "r");
+    if(!handle)
+    {
+        printf("couldn't url_fopen() %s\n", url);
+        fclose(outf);
+        return 2;
+    }
+
+    while(!url_feof(handle))
+    {
+        url_fgets(buffer,sizeof(buffer),handle);
+        fwrite(buffer,1,strlen(buffer),outf);
+    }
+
+    url_fclose(handle);
+
+    fclose(outf);
+
+
+    /* Copy from url with fread */
+    outf=fopen("fread.test","w+");
+    if(!outf)
+    {
+        perror("couldn't open fread output file\n");
+        return 1;
+    }
+
+    handle = url_fopen("testfile", "r");
+    if(!handle) {
+        printf("couldn't url_fopen() testfile\n");
+        fclose(outf);
+        return 2;
+    }
+
+    do {
+        nread = url_fread(buffer, 1,sizeof(buffer), handle);
+        fwrite(buffer,1,nread,outf);
+    } while(nread);
+
+    url_fclose(handle);
+
+    fclose(outf);
+
+
+    /* Test rewind */
+    outf=fopen("rewind.test","w+");
+    if(!outf)
+    {
+        perror("couldn't open fread output file\n");
+        return 1;
+    }
+
+    handle = url_fopen("testfile", "r");
+    if(!handle) {
+        printf("couldn't url_fopen() testfile\n");
+        fclose(outf);
+        return 2;
+    }
+
+        nread = url_fread(buffer, 1,sizeof(buffer), handle);
+        fwrite(buffer,1,nread,outf);
+        url_rewind(handle);
+
+        buffer[0]='\n';
+        fwrite(buffer,1,1,outf);
+
+        nread = url_fread(buffer, 1,sizeof(buffer), handle);
+        fwrite(buffer,1,nread,outf);
+
+
+    url_fclose(handle);
+
+    fclose(outf);
+
+
+    return 0;/* all done */
+}