actube/src/capwap/cw_load_file.c

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#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
/**
* @file
*/
/**
* Load a file from disk to memory
* @param filename name of file to load
* @param size variable which receives the size of the file in bytes
* @return a pointer to the memory where the file was loaded in \n
* The memory must be freed using free.
*
* Eexample:
* \code
#include "capwap/file.h"
size_t bytes;
char * data = cw_load_file("file.txt",&bytes);
if (data)
free (data);
\endcode
*/
char *cw_load_file(const char *filename,size_t *size)
{
FILE * infile = fopen(filename,"rb");
if ( !infile)
return NULL;
fseek(infile,0,SEEK_END);
*size = ftell(infile);
char *buf = malloc(*size);
if (!buf)
goto errX;
fseek(infile,0,SEEK_SET);
*size = fread(buf,1,*size,infile);
errX:
fclose(infile);
return buf;
}
int cw_save_file(const char *filename, char *data,int len)
{
FILE *outfile = fopen(filename,"wb");
if (!outfile)
return 0;
int bytes = fwrite(data,1,len,outfile);
fclose(outfile);
return bytes;
}