From 9918693037dce8aa4bb6f08741b6812923486c18 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 19 Jun 2024 11:26:03 +0200
Subject: Merging upstream version 1.76.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/errno/src/unix.rs | 28 +++++++++++++++++-----------
 vendor/errno/src/wasi.rs |  8 ++++----
 2 files changed, 21 insertions(+), 15 deletions(-)

(limited to 'vendor/errno/src')

diff --git a/vendor/errno/src/unix.rs b/vendor/errno/src/unix.rs
index 86a35d9be..18951e424 100644
--- a/vendor/errno/src/unix.rs
+++ b/vendor/errno/src/unix.rs
@@ -13,7 +13,7 @@
 // except according to those terms.
 
 use core::str;
-use libc::{self, c_char, c_int, size_t, strlen};
+use libc::{self, c_int, size_t, strerror_r, strlen};
 
 use crate::Errno;
 
@@ -30,8 +30,13 @@ where
 {
     let mut buf = [0u8; 1024];
     let c_str = unsafe {
-        if strerror_r(err.0, buf.as_mut_ptr() as *mut _, buf.len() as size_t) < 0 {
-            let fm_err = errno();
+        let rc = strerror_r(err.0, buf.as_mut_ptr() as *mut _, buf.len() as size_t);
+        if rc != 0 {
+            // Handle negative return codes for compatibility with glibc < 2.13
+            let fm_err = match rc < 0 {
+                true => errno(),
+                false => Errno(rc),
+            };
             if fm_err != Errno(libc::ERANGE) {
                 return callback(Err(fm_err));
             }
@@ -56,7 +61,13 @@ pub fn set_errno(Errno(errno): Errno) {
 
 extern "C" {
     #[cfg_attr(
-        any(target_os = "macos", target_os = "ios", target_os = "freebsd"),
+        any(
+            target_os = "macos",
+            target_os = "ios",
+            target_os = "tvos",
+            target_os = "watchos",
+            target_os = "freebsd"
+        ),
         link_name = "__error"
     )]
     #[cfg_attr(
@@ -65,7 +76,8 @@ extern "C" {
             target_os = "netbsd",
             target_os = "bitrig",
             target_os = "android",
-            target_os = "espidf"
+            target_os = "espidf",
+            target_env = "newlib"
         ),
         link_name = "__errno"
     )]
@@ -86,10 +98,4 @@ extern "C" {
     #[cfg_attr(target_os = "aix", link_name = "_Errno")]
     #[cfg_attr(target_os = "nto", link_name = "__get_errno_ptr")]
     fn errno_location() -> *mut c_int;
-
-    #[cfg_attr(
-        any(target_os = "linux", target_os = "hurd"),
-        link_name = "__xpg_strerror_r"
-    )]
-    fn strerror_r(errnum: c_int, buf: *mut c_char, buflen: size_t) -> c_int;
 }
diff --git a/vendor/errno/src/wasi.rs b/vendor/errno/src/wasi.rs
index b18fa9b2c..404d7d519 100644
--- a/vendor/errno/src/wasi.rs
+++ b/vendor/errno/src/wasi.rs
@@ -13,7 +13,7 @@
 // except according to those terms.
 
 use core::str;
-use libc::{self, c_char, c_int, size_t, strlen};
+use libc::{self, c_int, size_t, strerror_r, strlen};
 
 use crate::Errno;
 
@@ -30,8 +30,9 @@ where
 {
     let mut buf = [0u8; 1024];
     let c_str = unsafe {
-        if strerror_r(err.0, buf.as_mut_ptr() as *mut _, buf.len() as size_t) < 0 {
-            let fm_err = errno();
+        let rc = strerror_r(err.0, buf.as_mut_ptr() as *mut _, buf.len() as size_t);
+        if rc != 0 {
+            let fm_err = Errno(rc);
             if fm_err != Errno(libc::ERANGE) {
                 return callback(Err(fm_err));
             }
@@ -56,5 +57,4 @@ pub fn set_errno(Errno(new_errno): Errno) {
 
 extern "C" {
     fn __errno_location() -> *mut c_int;
-    fn strerror_r(errnum: c_int, buf: *mut c_char, buflen: size_t) -> c_int;
 }
-- 
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