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Use getpwuid_r with the right signature, if available.

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1999-01-20  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

	* gutils.c (g_get_any_init): Use getpwuid_r with the right
	signature, if available.

	* configure.in, acconfig.h: Test for existance of getpwuid_r and
	its signature.
This commit is contained in:
Sebastian Wilhelmi
1999-01-20 15:06:46 +00:00
committed by Sebastian Wilhelmi
parent 32dbc0d51c
commit 8c54935c34
12 changed files with 168 additions and 56 deletions
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72
gutils.c
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@@ -384,10 +384,6 @@ g_get_any_init (void)
{
if (!g_tmp_dir)
{
#ifdef HAVE_PWD_H
struct passwd *pw;
#endif
g_tmp_dir = g_strdup (g_getenv ("TMPDIR"));
if (!g_tmp_dir)
g_tmp_dir = g_strdup (g_getenv ("TMP"));
@@ -439,30 +435,50 @@ g_get_any_init (void)
#endif
#ifdef HAVE_PWD_H
/* FIXME: we must actually use the getpwuid_r function here, as
getpwuid is not MT-safe, but the prototype doesn't seem to be
agreed upon on the different systems, i.e. it is
struct passwd *getpwuid_r(uid_t uid, struct passwd * pwd,
char *buffer, int buflen);
on solaris, but
int getpwuid_r(uid_t uid, struct passwd *pwd, char *buffer,
size_t bufsize struct passwd **result);
on posix. weird. */
setpwent ();
pw = getpwuid (getuid ());
endpwent ();
if (pw)
{
g_user_name = g_strdup (pw->pw_name);
g_real_name = g_strdup (pw->pw_gecos);
if (!g_home_dir)
g_home_dir = g_strdup (pw->pw_dir);
}
{
struct passwd *pw = NULL, pwd;
gpointer buffer = NULL;
guint bufsize = sizeof (struct passwd);
# ifdef HAVE_GETPWUID_R
while (TRUE)
{
int error = 0;
buffer = g_realloc (buffer, bufsize);
# ifdef HAVE_GETPWUID_R_POSIX
error = getpwuid_r (getuid (), &pwd, buffer, bufsize, &pw);
if (error == 0)
break;
# else /* HAVE_GETPWUID_R_POSIX */
pw = getpwuid_r (getuid (), &pwd, buffer, bufsize);
if (pw)
break;
error = errno;
# endif /* HAVE_GETPWUID_R_POSIX */
if (error != ERANGE)
g_error( "Could not read account information: %s",
g_strerror (error));
bufsize *= 2;
}
# else /* HAVE_GETPWUID_R */
# if defined(G_THREADS_ENABLED) && defined(__GNUC__)
# warning "the `g_get_(user_name|real_name|home_dir|tmp_dir)'"
# warning "functions will not be MT-safe at their first call"
# warning "because there is no `getpwuid_r' on your system."
# endif
setpwent ();
pw = getpwuid (getuid ());
endpwent ();
# endif /* HAVE_GETPWUID_R */
if (pw)
{
g_user_name = g_strdup (pw->pw_name);
g_real_name = g_strdup (pw->pw_gecos);
if (!g_home_dir)
g_home_dir = g_strdup (pw->pw_dir);
}
g_free (buffer);
}
#else /* !HAVE_PWD_H */
# ifdef NATIVE_WIN32
{