fix strerror(0)
Eric Blake
eblake@redhat.com
Wed May 25 21:05:00 GMT 2011
http://austingroupbugs.net/view.php?id=382 states that POSIX requires
strerror(0) to emit a message that indicates success, and not modify
errno to EINVAL.
---
newlib/ChangeLog | 4 ++++
newlib/libc/string/strerror.c | 6 ++++++
2 files changed, 10 insertions(+), 0 deletions(-)
2011-05-25 Eric Blake <eblake@redhat.com>
* libc/string/strerror.c (_strerror_r): Report "Success" for 0.
diff --git a/newlib/libc/string/strerror.c b/newlib/libc/string/strerror.c
index fd6edd9..8852c36 100644
--- a/newlib/libc/string/strerror.c
+++ b/newlib/libc/string/strerror.c
@@ -33,6 +33,9 @@ This implementation of <<strerror>> prints out the
following strings
for each of the values defined in `<<errno.h>>':
o+
+o 0
+Success
+
o E2BIG
Arg list too long
@@ -361,6 +364,9 @@ _DEFUN (_strerror_r, (ptr, errnum, internal, errptr),
switch (errnum)
{
+ case 0:
+ error = "Success";
+ break;
/* go32 defines EPERM as EACCES */
#if defined (EPERM) && (!defined (EACCES) || (EPERM != EACCES))
case EPERM:
--
1.7.5.1
--
Eric Blake eblake@redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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