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core: Implement _gpgme_getenv for NetBSD.

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* src/get-env.c [HAVE_GETENV_R] (_gpgme_getenv): New.

--

GnuPG-bug-id: 3056
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2018-01-29 11:45:33 +09:00
parent 7da01c7352
commit 37d62e9d0f
1 changed files with 40 additions and 1 deletions
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41
src/get-env.c
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@ -28,7 +28,7 @@
#include "util.h" #include "util.h"
#if defined(HAVE_THREAD_SAFE_GETENV) || !defined (HAVE_GETENV_R) #if defined(HAVE_THREAD_SAFE_GETENV)
/* We prefer using getenv() if it is thread-safe. */ /* We prefer using getenv() if it is thread-safe. */
/* Retrieve the environment variable NAME and return a copy of it in a /* Retrieve the environment variable NAME and return a copy of it in a
@ -50,7 +50,46 @@ _gpgme_getenv (const char *name, char **value)
} }
return 0; return 0;
} }
#elif defined (HAVE_GETENV_R)
#define INITIAL_GETENV_SIZE 32
gpgme_error_t
_gpgme_getenv (const char *name, char **value)
{
size_t len = INITIAL_GETENV_SIZE;
char *env_value;
env_value = malloc (len);
while (1)
{
*value = env_value;
if (!env_value)
return gpg_error_from_syserror ();
if (getenv_r (name, env_value, len) == 0)
break;
if (errno == ERANGE)
{
len *= 2;
env_value = realloc (env_value, len);
}
else
{
int saved = errno;
free (env_value);
*value = NULL;
if (errno == ENOENT)
return 0;
else
return gpg_error_from_errno (saved);
}
}
return 0;
}
#else #else
/* FIXME: Implement this when we have the specification for it. */ /* FIXME: Implement this when we have the specification for it. */