src/lib/libc/string/strerror.c, branch release/5.4.0

Back out the `hiding' of strlcpy and strlcat. Several people

2003-05-01T19:03:14Z

vocally objected to this safety belt.

`Hide' strlcpy and strlcat (using the namespace.h / __weak_reference

2003-04-29T21:13:50Z

technique) so that we don't wind up calling into an application's version if the application defines them. Inspired by: qpopper's interfering and buggy version of strlcpy

Optimize errstr() by reducing the number of times it walks a string.

2003-01-03T16:44:42Z

As a side effect, it makes the code easier to read and requires less pointer arithmetic. Test by: strerror regression test Submitted by: Tim Kientzle

Stylistic changes:

2002-12-20T05:26:10Z

o Fix an English error (comma splice) and poorly worded sentence. o Fix KNF ordering of variables (pointers come before arithmetic types). o Restore hand-optimization of sizeof()-1, instead of strlen(). o Remove unneeded local variables in strerror_r(). Test by: strerror regression test Requested by: bde Reviewed by: bde

Rearrange strerror() so that its itoa procedure can be used with

2002-12-18T16:53:31Z

strerror_r(). Doing this allows us to ensure that strerror_r() always fills the supplied buffer regardless of EINVAL or ERANGE errors. strerror()'s semantics have changed slightly such that an argument of 0 is now considered invalid and errno is set to EINVAL. Remove internal regression test for strerror() and strerror_r(). This will be reincarnated in src/tools/regression/lib/libc/string. In strerror(3), add a comment about strerror()'s bogus return type. PR: 44356

Fix off-by-one error.

2002-07-03T06:28:04Z

PR: misc/40104 Submitted by: Neal Fachan MFC after: 3 days

Make strerror and strerror_r use sys_errlist[0] for errnum = 0. Be

2001-12-07T06:28:58Z

more careful about reporting truncation with ERANGE in strerror_r. Set errno to EINVAL for "unknown" errnum in strerror as required by P1003.1-200x Draft June 14, 2001. More carefully document the handling of strerrbuf when errors (ERANGE, EINVAL) are encountered in strerror_r. Reviewed by: bde (ongoing discussion)

New, improved, more Posix-compliant strerror_r implementation,

2001-12-06T04:53:31Z

complete with documentation. Reviewed by: mike@ gad@ MFC after: 1 week

Add strerror_r function per Posix prototype.

2001-11-27T07:39:46Z

Reviewed by: Mike Barcroft MFC after: 2 weeks

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2001-11-07T19:55:16Z