From: François Pinard Date: Wed, 16 Nov 1994 02:56:03 +0000 (+0000) Subject: *** empty log message *** X-Git-Url: https://git.brokenzipper.com/gitweb?a=commitdiff_plain;h=01474cfa926809bf43465a3f94c5c6caf33fed53;p=chaz%2Ftar *** empty log message *** --- diff --git a/src/list.c b/src/list.c index c26c883..7f5aac9 100644 --- a/src/list.c +++ b/src/list.c @@ -289,7 +289,7 @@ int read_header() { register int i; - register long sum, recsum; + register long sum, signed_sum, recsum; register char *p; register union record *header; long from_oct(); @@ -315,13 +315,18 @@ read_header() * We can't use unsigned char here because of old compilers, * e.g. V7. */ + signed_sum += *p; sum += 0xFF & *p++; } /* Adjust checksum to count the "chksum" field as blanks. */ for (i = sizeof(header->header.chksum); --i >= 0;) + { sum -= 0xFF & header->header.chksum[i]; + signed_sum -= (char) header->header.chksum[i]; + } sum += ' '* sizeof header->header.chksum; + signed_sum += ' ' * sizeof header->header.chksum; if (sum == 8*' ') { /* @@ -331,7 +336,7 @@ read_header() return 2; } - if (sum != recsum) + if (sum != recsum && signed_sum != recsum) return 0; /*