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authorJohn Denker <jsd@av8n.com>2012-06-03 01:38:28 (GMT)
committerJohn Denker <jsd@av8n.com>2012-06-03 01:38:28 (GMT)
commit78488dc84afac1398e582ae6bbaf9606d07afa1e (patch)
tree71723e916f23a6a07422587de275dece3ea60252 /checkpasswd/byte_diff.c
parent81b5f8f3ab26a7969956faef29a90499ece40ff5 (diff)
checkpassword ... as downloaded
Diffstat (limited to 'checkpasswd/byte_diff.c')
-rw-r--r--checkpasswd/byte_diff.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/checkpasswd/byte_diff.c b/checkpasswd/byte_diff.c
new file mode 100644
index 0000000..cdbd760
--- /dev/null
+++ b/checkpasswd/byte_diff.c
@@ -0,0 +1,16 @@
+#include "byte.h"
+
+int byte_diff(s,n,t)
+register char *s;
+register unsigned int n;
+register char *t;
+{
+ for (;;) {
+ if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
+ if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
+ if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
+ if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
+ }
+ return ((int)(unsigned int)(unsigned char) *s)
+ - ((int)(unsigned int)(unsigned char) *t);
+}