fs.c File Reference

#include "lwip/apps/httpd_opts.h"
#include "lwip/def.h"
#include "lwip/apps/fs.h"
#include "fsdata.h"
#include <string.h>
#include "fsdata.c"

Functions
err_t	fs_open (struct fs_file *file, const char *name)
void	fs_close (struct fs_file *file)
int	fs_bytes_left (struct fs_file *file)

Function Documentation

fs_open()

err_t fs_open	(	struct fs_file *	file,
		const char *	name
	)

{
  const struct fsdata_file *f;
 
  if ((file == NULL) || (name == NULL)) {
     return ERR_ARG;
  }
 
#if LWIP_HTTPD_CUSTOM_FILES
  if (fs_open_custom(file, name)) {
    file->is_custom_file = 1;
    return ERR_OK;
  }
  file->is_custom_file = 0;
#endif /* LWIP_HTTPD_CUSTOM_FILES */
 
  for (f = FS_ROOT; f != NULL; f = f->next) {
    if (!strcmp(name, (const char *)f->name)) {
      file->data = (const char *)f->data;
      file->len = f->len;
      file->index = f->len;
      file->pextension = NULL;
      file->flags = f->flags;
#if HTTPD_PRECALCULATED_CHECKSUM
      file->chksum_count = f->chksum_count;
      file->chksum = f->chksum;
#endif /* HTTPD_PRECALCULATED_CHECKSUM */
#if LWIP_HTTPD_FILE_STATE
      file->state = fs_state_init(file, name);
#endif /* #if LWIP_HTTPD_FILE_STATE */
      return ERR_OK;
    }
  }
  /* file not found */
  return ERR_VAL;
}

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fs_close()

void fs_close

(

struct fs_file *

file

)

{
#if LWIP_HTTPD_CUSTOM_FILES
  if (file->is_custom_file) {
    fs_close_custom(file);
  }
#endif /* LWIP_HTTPD_CUSTOM_FILES */
#if LWIP_HTTPD_FILE_STATE
  fs_state_free(file, file->state);
#endif /* #if LWIP_HTTPD_FILE_STATE */
  LWIP_UNUSED_ARG(file);
}

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fs_bytes_left()

int fs_bytes_left

(

struct fs_file *

file

)

{
  return file->len - file->index;
}