Using the read function to read in a file.

Posted by robUK on Stack Overflow See other posts from Stack Overflow or by robUK
Published on 2010-04-28T10:58:10Z Indexed on 2010/04/28 11:03 UTC
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Hello,

gcc 4.4.1

I am using the read function to read in a wave file. However, when it gets to the read function. Execution seems to stop and freezes. I am wondering if I am doing anything wrong with this.

The file size test-short.wave is: 514K.

What I am aiming for is to read the file into the memory buffer chunks at a time. Currently I just testing this.

Many thanks for any suggestions,

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>

int main(void)
{
    char buff = malloc(10240);
    int32_t fd = 0;
    int32_t bytes_read = 0;

    char *filename = "test-short.wav";

    /* open wave file */
    if((fd = (open(filename, O_RDWR)) == -1))
    {
        fprintf(stderr, "open [ %s ]\n", strerror(errno));  
        return 1;
    }
    printf("Opened file [ %s ]\n", filename);
    printf("sizeof(buff) [ %d ]\n", sizeof(buff));
    printf("strlen(buff) [ %d ]\n", strlen(buff));

    bytes_read = read(fd, buff, sizeof(buff));

    printf("Bytes read [ %d ]\n", bytes_read);

    return 0;
}

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