strcase*: Add cloudabi support

Author: palfrey

libc-test/build.rs

@@ -26,6 +26,7 @@ fn main() {
     let openbsd = target.contains("openbsd");
     let rumprun = target.contains("rumprun");
     let solaris = target.contains("solaris");
+    let cloudabi = target.contains("cloudabi");
     let bsdlike = freebsd || apple || netbsd || openbsd || dragonfly;
     let mut cfg = ctest::TestGenerator::new();
 
@@ -353,6 +354,10 @@ fn main() {
         }
     }
 
+    if cloudabi {
+        cfg.header("strings.h");
+    }
+
     cfg.type_name(move |ty, is_struct, is_union| {
         match ty {
             // Just pass all these through, no need for a "struct" prefix

src/cloudabi/mod.rs

@@ -185,6 +185,8 @@ extern {
     pub fn atexit(cb: extern fn()) -> c_int;
     pub fn system(s: *const c_char) -> c_int;
     pub fn getenv(s: *const c_char) -> *mut c_char;
+    pub fn getline (lineptr: *mut *mut c_char, n: *mut size_t,
+        stream: *mut FILE) -> ssize_t;
 
     pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char;
     pub fn strncpy(dst: *mut c_char, src: *const c_char,
@@ -201,6 +203,9 @@ 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 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;