fopen function is failed to open existing file in read mode (wasm platform)

[Kiran Pawar]

Hi,
 i have compile the following code using emcc compiler

#include <stdio.h>
#include <string.h>

int main(int argc, char *argv[])
{
        if(argc > 2 && argc < 2)
        {
                printf("\nEnter the name of file \n");
                return 0;
        }
        FILE *file = NULL;

        // Open file in read mode
        printf("file name: %s",argv[1]);
        file = fopen(argv[1], "r");
        if(file != NULL)
        {
                printf("\nFile is successfully open\n");
        }
        else {
                printf("\nFile is not opening\n");
                return 0;
        }

        fclose(file);
        return 0;
}

i have tried to compile like,
$emcc mycode.c

$node mycode.js input.txt

Output:
file name: input.txt
File is not opening


there is another way to compile and run like,

$emcc mycode.c --preload-file input.txt -o mycode.html

$node mycode.js input.txt

Output:
file name: input.txt
File is successfully open


but at the time of compilation i have to specify the name of file which is opening in read mode,
is there any way to access file from local file system and opening file without giving --preload-file option

thanks in advance

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[Kiran Pawar]