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authorJohn Denker <jsd@av8n.com>2012-06-02 01:58:45 (GMT)
committerJohn Denker <jsd@av8n.com>2012-06-02 01:58:45 (GMT)
commitb732a73bc773789894466b0e5320b2f1fe42c7e9 (patch)
tree385358983f064a1f10a5080b33a3ba13010886db /str_diff.c
parent634d365a03cb0581a062cd3cf4db9ae69f1cde26 (diff)
original, as downloaded from http://www.qmail.org/netqmail-1.06.tar.gz
Diffstat (limited to 'str_diff.c')
-rw-r--r--str_diff.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/str_diff.c b/str_diff.c
new file mode 100644
index 0000000..18f8927
--- /dev/null
+++ b/str_diff.c
@@ -0,0 +1,17 @@
+#include "str.h"
+
+int str_diff(s,t)
+register char *s;
+register char *t;
+{
+ register char x;
+
+ for (;;) {
+ x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
+ x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
+ x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
+ x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
+ }
+ return ((int)(unsigned int)(unsigned char) x)
+ - ((int)(unsigned int)(unsigned char) *t);
+}