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