examples: adhere to curl code style

All plain C examples now (mostly) adhere to the curl code style. While
they are only examples, they had diverted so much and contained all
sorts of different mixed code styles by now. Having them use a unified
style helps users and readability. Also, as they get copy-and-pasted
widely by users, making sure they're clean and nice is a good idea.

573 checksrc warnings were addressed.

1 files changed, 26 insertions, 25 deletions

diff --git a/docs/examples/fopen.c b/docs/examples/fopen.c
index de9ce19a6..71be178ef 100644
--- a/docs/examples/fopen.c
+++ b/docs/examples/fopen.c
@@ -80,7 +80,7 @@ struct fcurl_data
 typedef struct fcurl_data URL_FILE;
 
 /* exported functions */
-URL_FILE *url_fopen(const char *url,const char *operation);
+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);
@@ -106,9 +106,9 @@ static size_t write_callback(char *buffer,
 
   if(size > rembuff) {
     /* not enough space in buffer */
-    newbuff=realloc(url->buffer,url->buffer_len + (size - rembuff));
+    newbuff=realloc(url->buffer, url->buffer_len + (size - rembuff));
     if(newbuff==NULL) {
-      fprintf(stderr,"callback buffer grow failed\n");
+      fprintf(stderr, "callback buffer grow failed\n");
       size=rembuff;
     }
     else {
@@ -165,8 +165,7 @@ static int fill_buffer(URL_FILE *file, size_t want)
     /* get file descriptors from the transfers */
     mc = curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
 
-    if(mc != CURLM_OK)
-    {
+    if(mc != CURLM_OK) {
       fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
       break;
     }
@@ -230,7 +229,7 @@ static int use_buffer(URL_FILE *file, size_t want)
   return 0;
 }
 
-URL_FILE *url_fopen(const char *url,const char *operation)
+URL_FILE *url_fopen(const char *url, const char *operation)
 {
   /* this code could check for URLs or types in the 'url' and
      basically use the real fopen() for standard files */
@@ -244,7 +243,7 @@ URL_FILE *url_fopen(const char *url,const char *operation)
 
   memset(file, 0, sizeof(URL_FILE));
 
-  if((file->handle.file=fopen(url,operation)))
+  if((file->handle.file=fopen(url, operation)))
     file->type = CFTYPE_FILE; /* marked as URL */
 
   else {
@@ -338,13 +337,13 @@ size_t url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file)
 
   switch(file->type) {
   case CFTYPE_FILE:
-    want=fread(ptr,size,nmemb,file->handle.file);
+    want=fread(ptr, size, nmemb, file->handle.file);
     break;
 
   case CFTYPE_CURL:
     want = nmemb * size;
 
-    fill_buffer(file,want);
+    fill_buffer(file, want);
 
     /* check if theres data in the buffer - if not fill_buffer()
      * either errored or EOF */
@@ -358,7 +357,7 @@ size_t url_fread(void *ptr, size_t size, size_t nmemb, URL_FILE *file)
     /* xfer data to caller */
     memcpy(ptr, file->buffer, want);
 
-    use_buffer(file,want);
+    use_buffer(file, want);
 
     want = want / size;     /* number of items */
     break;
@@ -383,7 +382,7 @@ char *url_fgets(char *ptr, size_t size, URL_FILE *file)
     break;
 
   case CFTYPE_CURL:
-    fill_buffer(file,want);
+    fill_buffer(file, want);
 
     /* check if theres data in the buffer - if not fill either errored or
      * EOF */
@@ -407,7 +406,7 @@ char *url_fgets(char *ptr, size_t size, URL_FILE *file)
     memcpy(ptr, file->buffer, want);
     ptr[want]=0;/* allways null terminate */
 
-    use_buffer(file,want);
+    use_buffer(file, want);
 
     break;
 
@@ -447,6 +446,10 @@ void url_rewind(URL_FILE *file)
   }
 }
 
+#define FGETSFILE "fgets.test"
+#define FREADFILE "fread.test"
+#define REWINDFILE "rewind.test"
+
 /* 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 */
@@ -465,7 +468,7 @@ int main(int argc, char *argv[])
     url=argv[1];/* use passed url */
 
   /* copy from url line by line with fgets */
-  outf=fopen("fgets.test","w+");
+  outf=fopen(FGETSFILE, "wb+");
   if(!outf) {
     perror("couldn't open fgets output file\n");
     return 1;
@@ -479,8 +482,8 @@ int main(int argc, char *argv[])
   }
 
   while(!url_feof(handle)) {
-    url_fgets(buffer,sizeof(buffer),handle);
-    fwrite(buffer,1,strlen(buffer),outf);
+    url_fgets(buffer, sizeof(buffer), handle);
+    fwrite(buffer, 1, strlen(buffer), outf);
   }
 
   url_fclose(handle);
@@ -489,7 +492,7 @@ int main(int argc, char *argv[])
 
 
   /* Copy from url with fread */
-  outf=fopen("fread.test","w+");
+  outf=fopen(FREADFILE, "wb+");
   if(!outf) {
     perror("couldn't open fread output file\n");
     return 1;
@@ -504,7 +507,7 @@ int main(int argc, char *argv[])
 
   do {
     nread = url_fread(buffer, 1, sizeof(buffer), handle);
-    fwrite(buffer,1,nread,outf);
+    fwrite(buffer, 1, nread, outf);
   } while(nread);
 
   url_fclose(handle);
@@ -513,7 +516,7 @@ int main(int argc, char *argv[])
 
 
   /* Test rewind */
-  outf=fopen("rewind.test","w+");
+  outf=fopen(REWINDFILE, "wb+");
   if(!outf) {
     perror("couldn't open fread output file\n");
     return 1;
@@ -526,21 +529,19 @@ int main(int argc, char *argv[])
     return 2;
   }
 
-  nread = url_fread(buffer, 1,sizeof(buffer), handle);
-  fwrite(buffer,1,nread,outf);
+  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);
+  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 */
 }