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Diffstat (limited to 'gnu/libexec/uucp/libuucp/strcas.c')
-rw-r--r--gnu/libexec/uucp/libuucp/strcas.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/gnu/libexec/uucp/libuucp/strcas.c b/gnu/libexec/uucp/libuucp/strcas.c
new file mode 100644
index 000000000000..4bb225112926
--- /dev/null
+++ b/gnu/libexec/uucp/libuucp/strcas.c
@@ -0,0 +1,33 @@
+/* strcas.c
+ Compare two strings case insensitively. */
+
+#include "uucp.h"
+#include <ctype.h>
+
+int
+strcasecmp (z1, z2)
+ const char *z1;
+ const char *z2;
+{
+ char b1, b2;
+
+ while ((b1 = *z1++) != '\0')
+ {
+ b2 = *z2++;
+ if (b2 == '\0')
+ return 1;
+ if (b1 != b2)
+ {
+ if (isupper (BUCHAR (b1)))
+ b1 = tolower (BUCHAR (b1));
+ if (isupper (BUCHAR (b2)))
+ b2 = tolower (BUCHAR (b2));
+ if (b1 != b2)
+ return b1 - b2;
+ }
+ }
+ if (*z2 == '\0')
+ return 0;
+ else
+ return -1;
+}