X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/ebb0a6f61826aeaba0aeb1866df41dee8b7c7269..efb2f6bf626c4379065431bc207b47a4b824a7f3:/checksum.c diff --git a/checksum.c b/checksum.c index 6be1993e..6186aae3 100644 --- a/checksum.c +++ b/checksum.c @@ -30,18 +30,20 @@ extern int remote_version; a simple 32 bit checksum that can be upadted from either end (inspired by Mark Adler's Adler-32 checksum) */ -uint32 get_checksum1(char *buf,int len) +uint32 get_checksum1(char *buf1,int len) { int i; uint32 s1, s2; + signed char *buf = (signed char *)buf1; s1 = s2 = 0; for (i = 0; i < (len-4); i+=4) { - s2 += 4*(s1 + buf[i]) + 3*buf[i+1] + 2*buf[i+2] + buf[i+3] + 10; - s1 += (buf[i+0] + buf[i+1] + buf[i+2] + buf[i+3] + 4); + s2 += 4*(s1 + buf[i]) + 3*buf[i+1] + 2*buf[i+2] + buf[i+3] + + 10*CHAR_OFFSET; + s1 += (buf[i+0] + buf[i+1] + buf[i+2] + buf[i+3] + 4*CHAR_OFFSET); } for (; i < len; i++) { - s1 += (buf[i]+1); s2 += s1; + s1 += (buf[i]+CHAR_OFFSET); s2 += s1; } return (s1 & 0xffff) + (s2 << 16); } @@ -63,8 +65,8 @@ void get_checksum2(char *buf,int len,char *sum) { int i; MDstruct MD; - static char *buf1 = NULL; - static int len1 = 0; + static char *buf1; + static int len1; if (len > len1) { if (buf1) free(buf1); @@ -91,13 +93,13 @@ void get_checksum2(char *buf,int len,char *sum) } -void file_checksum(char *fname,char *sum,off_t size) +void file_checksum(char *fname,char *sum,OFF_T size) { - int i; + OFF_T i; MDstruct MD; struct map_struct *buf; int fd; - int len = size; + OFF_T len = size; char tmpchunk[CSUM_CHUNK]; bzero(sum,csum_length);