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Remove support for old realpath() API 

The now preferred way to call realpath() is by passing NULL as the
second argument and get a malloc'ed result.  We still supported the
old way of providing our own buffer as a second argument, for some
platforms that didn't support the new way yet.  Those were only
Solaris less than version 11 and some older AIX versions (7.1 and
newer appear to support the new variant).  We don't support those
platforms versions anymore, so we can remove this extra code.

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://www.postgresql.org/message-id/flat/9e638b49-5c3f-470f-a392-2cbedb2f7855%40eisentraut.org
This commit is contained in:
Peter Eisentraut 2024-08-12 07:59:40 +02:00
parent f0d1127595
commit 94980c4567
1 changed files with 0 additions and 19 deletions
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19
src/common/exec.c
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@ -285,25 +285,6 @@ pg_realpath(const char *fname)
#ifndef WIN32
path = realpath(fname, NULL);
if (path == NULL && errno == EINVAL)
{
/*
* Cope with old-POSIX systems that require a user-provided buffer.
* Assume MAXPGPATH is enough room on all such systems.
*/
char *buf = malloc(MAXPGPATH);
if (buf == NULL)
return NULL; /* assume errno is set */
path = realpath(fname, buf);
if (path == NULL) /* don't leak memory */
{
int save_errno = errno;
free(buf);
errno = save_errno;
}
}
#else /* WIN32 */
/*