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#include <stdio.h>
#include <stdint.h>
#include "byte-order.h"
#include "failure.h"
#include "memory.h"
FILE *xfopen(const char *filename, const char *opentype)
{
FILE *fp = fopen(filename, opentype);
if (!fp) {
perror("fopen() failed");
FAILURE;
}
return fp;
}
size_t xfread(void *data, size_t size, size_t count, FILE * stream)
{
size_t err = fread(data, size, count, stream);
if (err != count) {
fprintf(stderr, "fread() failed\n");
FAILURE;
}
return err;
}
#define GENERATE_NC_READ(tag) \
tag fread_##tag ( FILE *fp ) \
{ \
tag n; \
xfread(&n, 4, 1, fp); \
return ntoh_##tag (n); \
}
GENERATE_NC_READ(u16);
GENERATE_NC_READ(u32);
GENERATE_NC_READ(u64);
GENERATE_NC_READ(i16);
GENERATE_NC_READ(i32);
GENERATE_NC_READ(i64);
GENERATE_NC_READ(f32);
GENERATE_NC_READ(f64);
char *fread_byte_string(FILE * fp, int n)
{
char *s = xmalloc(n + 1);
s[n] = '\0';
xfread(s, 1, n, fp);
return s;
}
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