src-test2/include/stdlib.h, branch release/8.1.0

MFC r206893:

2010-05-04T05:34:18Z

Slightly modernize realpath(3). SUSv4 requires that implementation returns EINVAL if supplied path is NULL, and ENOENT if path is empty string [1]. Bring prototype in conformance with SUSv4, adding restrict keywords. Allow the resolved path buffer pointer be NULL, in which case realpath(3) allocates storage with malloc(). MFC r206898: Free() is not allowed to modify errno, remove safety brackets around it. Add small optimization, do not copy a string to the buffer that is to be freed immediately after. MFC r206997: Move realpath(3) prototype to a POSIX section. MFC r206998: Add standards section, improve wording, taking into account the handling of NULL and changed type in declaration.

Namespace: abort2() is a BSD extension.

2009-03-14T19:13:30Z

r189349 removed mktemp() from the XSI namespace when

2009-03-14T02:31:48Z

__XOPEN_SOURCE >= 700, since mktemp() was withdrawn from the standard. However, __XSI_VISIBLE is set to 700 in the default BSD envrionment, where mktemp() should still exist; hence, check for this.

- Add getsubopt and mkdtemp to the POSIX.1-2008 namespace.

2009-03-04T03:31:10Z

- Add mkstemp to the POSIX.1-2008 and BSD namespaces. - Remove mktemp from the XSI namespace.

Add two new routines: fdevname() and fdevname_r().

2009-02-11T20:24:59Z

A more elegant way of obtaining a name of a character device by its file descriptor on FreeBSD, is to use the FIODGNAME ioctl. Because a valid file descriptor implies a file descriptor is visible in /dev, it will always resolve a valid device name. I'm adding a more friendly wrapper for this ioctl, called fdevname(). It is a lot easier to use than devname() and also has better error handling. When a device name cannot be resolved, it will just return NULL instead of a generated device name that makes no sense. Discussed with: kib

Add a function attribute called `__malloc_like', which informs gcc

2009-01-31T18:27:02Z

that the annotated function returns a pointer that doesn't alias any extant pointer. This results in a 50%+ speedup in microbenchmarks such as the following: char *cp = malloc(1), *buf = malloc(BUF); for (i = 0; i < BUF; i++) buf[i] = *cp; In real programs, your mileage will vary. Note that gcc already performs this optimization automatically for any function called `malloc', `calloc', `strdup', or `strndup' unless -fno-builtins is used.

Add arc4random_uniform()

2008-07-22T11:40:42Z

Obtained from: OpenBSD

Add arc4random_buf.

2008-07-21T14:03:04Z

Style: remove arg names from arc4random_addrandom.

Significantly reduce the memory leak as noted in BUGS section for

2007-07-04T00:00:41Z

setenv(3) by tracking the size of the memory allocated instead of using strlen() on the current value. Convert all calls to POSIX from historic BSD API: - unsetenv returns an int. - putenv takes a char * instead of const char *. - putenv no longer makes a copy of the input string. - errno is set appropriately for POSIX. Exceptions involve bad environ variable and internal initialization code. These both set errno to EFAULT. Several patches to base utilities to handle the POSIX changes from Andrey Chernov's previous commit. A few I re-wrote to use setenv() instead of putenv(). New regression module for tools/regression/environ to test these functions. It also can be used to test the performance. Bump __FreeBSD_version to 700050 due to API change. PR: kern/99826 Approved by: wes Approved by: re (kensmith)

Back out all POSIXified *env() changes.

2007-05-01T16:02:44Z

Not because I admit they are technically wrong and not because of bug reports (I receive nothing). But because I surprisingly meets so strong opposition and resistance so lost any desire to continue that. Anyone who interested in POSIX can dig out what changes and how through cvs diffs.