strcase*: add redox support

Author: palfrey

libc-test/build.rs

@@ -27,6 +27,7 @@ fn main() {
     let rumprun = target.contains("rumprun");
     let solaris = target.contains("solaris");
     let cloudabi = target.contains("cloudabi");
+    let redox = target.contains("redox");
     let bsdlike = freebsd || apple || netbsd || openbsd || dragonfly;
     let mut cfg = ctest::TestGenerator::new();
 
@@ -354,7 +355,7 @@ fn main() {
         }
     }
 
-    if cloudabi {
+    if cloudabi || redox {
         cfg.header("strings.h");
     }
 

src/redox/mod.rs

@@ -231,6 +231,10 @@ extern {
     pub fn strdup(cs: *const c_char) -> *mut c_char;
     pub fn strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char;
     pub fn strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char;
+    pub fn strcasestr(cs: *const c_char, ct: *const c_char) -> *mut c_char;
+    pub fn strcasecmp(s1: *const c_char, s2: *const c_char) -> c_int;
+    pub fn strncasecmp(s1: *const c_char, s2: *const c_char,
+                       n: size_t) -> c_int;
     pub fn strlen(cs: *const c_char) -> size_t;
     pub fn strnlen(cs: *const c_char, maxlen: size_t) -> size_t;
     pub fn strerror(n: c_int) -> *mut c_char;