Add safe stdio rules (#261)

Author: lucic71

rules/stdio/tgt_refcount.rs

@@ -95,6 +95,124 @@ fn f10() -> Ptr<::std::fs::File> {
     libcc2rs::cin()
 }
 
+fn f11(a0: i32, a1: Ptr<::std::fs::File>) -> i32 {
+    let __c = a0 as u8;
+    match a1.with_mut(|__f| ::std::io::Write::write_all(__f, &[__c])) {
+        Ok(()) => __c as i32,
+        Err(__e) => {
+            libcc2rs::cpp2rust_errno().write(__e.raw_os_error().unwrap_or(::libc::EIO));
+            -1
+        }
+    }
+}
+
+fn f12(a0: Ptr<u8>, a1: Ptr<::std::fs::File>) -> i32 {
+    let __bytes: Vec<u8> = a0.to_c_string_iterator().collect();
+    match a1.with_mut(|__f| ::std::io::Write::write_all(__f, &__bytes)) {
+        Ok(()) => 0,
+        Err(__e) => {
+            libcc2rs::cpp2rust_errno().write(__e.raw_os_error().unwrap_or(::libc::EIO));
+            -1
+        }
+    }
+}
+
+fn f13(a0: Ptr<u8>) -> i32 {
+    let __bytes: Vec<u8> = a0.to_c_string_iterator().collect();
+    match libcc2rs::cout().with_mut(|__f| {
+        ::std::io::Write::write_all(__f, &__bytes)
+            .and_then(|_| ::std::io::Write::write_all(__f, b"\n"))
+    }) {
+        Ok(()) => 0,
+        Err(__e) => {
+            libcc2rs::cpp2rust_errno().write(__e.raw_os_error().unwrap_or(::libc::EIO));
+            -1
+        }
+    }
+}
+
+fn f17(a0: Ptr<u8>, a1: i32, a2: Ptr<::std::fs::File>) -> Ptr<u8> {
+    let __buf = a0.clone();
+    let __n = a1;
+    let __stream = a2.clone();
+    if __n <= 0 {
+        Ptr::null()
+    } else {
+        let __max = (__n - 1) as usize;
+        let mut __dst = __buf.clone();
+        let mut __count: usize = 0;
+        let mut __failed = false;
+        while __count < __max {
+            let mut __b: [u8; 1] = [0];
+            match __stream.with_mut(|__f| ::std::io::Read::read(__f, &mut __b)) {
+                Ok(0) => break,
+                Ok(_) => {
+                    __dst.write(__b[0]);
+                    __dst += 1;
+                    __count += 1;
+                    if __b[0] == b'\n' {
+                        break;
+                    }
+                }
+                Err(__e) => {
+                    if __e.kind() != ::std::io::ErrorKind::Interrupted {
+                        libcc2rs::cpp2rust_errno().write(__e.raw_os_error().unwrap_or(::libc::EIO));
+                        __failed = true;
+                        break;
+                    }
+                }
+            }
+        }
+        if __failed || __count == 0 {
+            Ptr::null()
+        } else {
+            __dst.write(0);
+            __buf
+        }
+    }
+}
+
+fn f18(a0: Ptr<u8>, a1: Ptr<u8>, a2: Ptr<::std::fs::File>) -> Ptr<::std::fs::File> {
+    let __stream = a2.clone();
+    let __new = match a1.to_rust_string().as_str() {
+        "rb" => ::std::fs::OpenOptions::new()
+            .read(true)
+            .open(a0.to_rust_string()),
+        "wb" => ::std::fs::OpenOptions::new()
+            .write(true)
+            .create(true)
+            .truncate(true)
+            .open(a0.to_rust_string()),
+        _ => panic!("unsupported mode"),
+    };
+    match __new {
+        Ok(__f) => {
+            __stream.write(__f);
+            __stream
+        }
+        Err(__e) => {
+            libcc2rs::cpp2rust_errno().write(__e.raw_os_error().unwrap_or(::libc::EIO));
+            Ptr::null()
+        }
+    }
+}
+
+fn f19(a0: Ptr<::std::fs::File>, a1: i64, a2: i32) -> i32 {
+    let __r = a0.with_mut(|__f| match a2 {
+        0 => ::std::io::Seek::seek(__f, ::std::io::SeekFrom::Start(a1 as u64)),
+        1 => ::std::io::Seek::seek(__f, ::std::io::SeekFrom::Current(a1)),
+        2 => ::std::io::Seek::seek(__f, ::std::io::SeekFrom::End(a1)),
+        _ => Err(::std::io::Error::other("unsupported whence for fseeko.")),
+    });
+    match __r {
+        Ok(_) => 0,
+        Err(__e) => {
+            libcc2rs::cpp2rust_errno().write(__e.raw_os_error().unwrap_or(::libc::EINVAL));
+            -1
+        }
+    }
+}
+
 fn f21(a0: Ptr<u8>, a1: usize, a2: Ptr<u8>, va: &[VaArg]) -> i32 {
     panic!(
         "snprintf is not supported in the refcount model (buf_is_null={}, size={}, fmt={:?}, varargs={})",
@@ -104,3 +222,30 @@ fn f21(a0: Ptr<u8>, a1: usize, a2: Ptr<u8>, va: &[VaArg]) -> i32 {
         va.len()
     )
 }
+
+fn f22(a0: Ptr<u8>, a1: Ptr<u8>) -> i32 {
+    match ::std::fs::rename(a0.to_rust_string(), a1.to_rust_string()) {
+        Ok(()) => 0,
+        Err(__e) => {
+            libcc2rs::cpp2rust_errno().write(__e.raw_os_error().unwrap_or(::libc::EIO));
+            -1
+        }
+    }
+}
+
+fn f23(a0: Ptr<::std::fs::File>) -> i32 {
+    let mut __b: [u8; 1] = [0];
+    match a0.with_mut(|__f| ::std::io::Read::read(__f, &mut __b)) {
+        Ok(0) => -1,
+        Ok(_) => __b[0] as i32,
+        Err(__e) => {
+            libcc2rs::cpp2rust_errno().write(__e.raw_os_error().unwrap_or(::libc::EIO));
+            -1
+        }
+    }
+}
+
+fn f24(a0: Ptr<::std::fs::File>, a1: Ptr<u8>, a2: i32, a3: usize) -> i32 {
+    /* std::fs::File is unbuffered */
+    0
+}