andersk Git - moira.git/blame_incremental

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Commit	Line	Data
	1	/* $Id$
	2	*
	3	* Copyright (C) 1988-1998 by the Massachusetts Institute of Technology.
	4	* For copying and distribution information, please see the file
	5	* <mit-copyright.h>.
	6	*/
	7
	8	#include <mit-copyright.h>
	9	#include <moira.h>
	10	#include "update_server.h"
	11
	12	#include <stdio.h>
	13
	14	RCSID("$Header$");
	15
	16	/*
	17	* checksum_fd(fd)
	18	* returns 24-bit checksum of bytes in file
	19	*/
	20
	21	long checksum_file(char *path)
	22	{
	23	long sum;
	24	int ch;
	25	FILE *f;
	26
	27	sum = 0;
	28	f = fopen(path, "r");
	29	while ((ch = getc(f)) != EOF)
	30	sum = (sum + ch) & ((1 << 24) - 1);
	31	fclose(f);
	32	return sum;
	33	}