sbase/util/crypt.c
sin 9ac01f59be Add crypt.[ch] and update md5sum and sha1sum
Factor out the code from md5sum and sha1sum into a util function.

Use FILE * instead of a file descriptor.  This will make it a bit
easier/more consistent when we implement support for the -c option.
2013-07-18 09:51:17 -04:00

34 lines
575 B
C

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "../util.h"
#include "../crypt.h"
int
cryptsum(struct crypt_ops *ops, FILE *fp, const char *f,
uint8_t *md)
{
unsigned char buf[BUFSIZ];
size_t n;
ops->init(ops->s);
while ((n = fread(buf, 1, sizeof(buf), fp)) > 0)
ops->update(ops->s, buf, n);
if (ferror(fp)) {
eprintf("%s: read error:", f);
return 1;
}
ops->sum(ops->s, md);
return 0;
}
void
mdprint(const uint8_t *md, const char *f, size_t len)
{
size_t i;
for (i = 0; i < len; i++)
printf("%02x", md[i]);
printf(" %s\n", f);
}