fread-intof.typescript.no-ansi

Script started on Mon 16 Mar 2015 10:42:04 PM CDT
duoct:0:~$ cd work
duoct:0:~/work$ ls -l fread-intof.c
-rw------- 1 jdrake jdrake 500 Jun 13  2013 fread-intof.c
duoct:0:~/work$ cat fread-intof.c 
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>

int
main(int argc, char *argv[])
{
    FILE *fp;
    int ints[1024];
    unsigned long nelem = strtoul(argv[2], NULL, 0);

    printf("total: %lu * %d = %lu (0x%lx)\n", nelem, 4, nelem*4, nelem*4);
    fp = fopen(argv[1], "rb");
    if (fp) {
        size_t nr;
        
        nr = fread(ints, 4, nelem, fp);
        printf("nr: %lu\n", (unsigned long)nr);

        write(2, ints, sizeof(ints));
        fclose(fp);
    }
    return 0;
}
duoct:0:~/work$ gcc -m32 -Wall -ggdb -o fio fread-intof.c
duoct:0:~/work$ ./fio /dev/zero $((0x40000001)) 2> err
total: 1073741825 * 4 = 4 (0x4)
nr: 1073741825
duoct:0:~/work$ tr -d '\0' < err | hexdump -vC | head -2
00000000  a9 41 74 f7 58 18 73 f7  f0 ff ff 40 75 f7 78 7d  |[email protected]}|
00000010  9c ff 63 98 73 f7 c0 71  f7 7c 2a 03 32 ff ff ff  |..c.s..q.|*.2...|
duoct:0:~/work$ exit

Script done on Mon 16 Mar 2015 10:42:38 PM CDT