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-rw-r--r--libc/pwd_grp/pwd_grp.c71
-rw-r--r--libc/pwd_grp/pwd_grp_internal.c107
2 files changed, 120 insertions, 58 deletions
diff --git a/libc/pwd_grp/pwd_grp.c b/libc/pwd_grp/pwd_grp.c
index f1726781a..068c3ba94 100644
--- a/libc/pwd_grp/pwd_grp.c
+++ b/libc/pwd_grp/pwd_grp.c
@@ -1,18 +1,7 @@
-/* Copyright (C) 2003 Manuel Novoa III
+/*
+ * Copyright (C) 2003 Manuel Novoa III
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Licensed under LGPL v2.1, see the file COPYING.LIB in this tarball for details.
*/
/* Nov 6, 2003 Initial version.
@@ -229,6 +218,7 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->pw_name, key))
#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
#define DO_GETXXKEY_R_PATHNAME _PATH_PASSWD
+#include "pwd_grp_internal.c"
#endif
#ifdef L_getgrnam_r
@@ -238,6 +228,7 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->gr_name, key))
#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
#define DO_GETXXKEY_R_PATHNAME _PATH_GROUP
+#include "pwd_grp_internal.c"
#endif
#ifdef L_getspnam_r
@@ -247,6 +238,7 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) (!strcmp((ENT)->sp_namp, key))
#define DO_GETXXKEY_R_KEYTYPE const char *__restrict
#define DO_GETXXKEY_R_PATHNAME _PATH_SHADOW
+#include "pwd_grp_internal.c"
#endif
#ifdef L_getpwuid_r
@@ -256,6 +248,7 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) ((ENT)->pw_uid == key)
#define DO_GETXXKEY_R_KEYTYPE uid_t
#define DO_GETXXKEY_R_PATHNAME _PATH_PASSWD
+#include "pwd_grp_internal.c"
#endif
#ifdef L_getgrgid_r
@@ -265,48 +258,10 @@ int sgetspent_r(const char *string, struct spwd *result_buf,
#define GETXXKEY_R_TEST(ENT) ((ENT)->gr_gid == key)
#define DO_GETXXKEY_R_KEYTYPE gid_t
#define DO_GETXXKEY_R_PATHNAME _PATH_GROUP
+#include "pwd_grp_internal.c"
#endif
/**********************************************************************/
-#ifdef GETXXKEY_R_FUNC
-
-int GETXXKEY_R_FUNC(DO_GETXXKEY_R_KEYTYPE key,
- GETXXKEY_R_ENTTYPE *__restrict resultbuf,
- char *__restrict buffer, size_t buflen,
- GETXXKEY_R_ENTTYPE **__restrict result)
-{
- FILE *stream;
- int rv;
-
- *result = NULL;
-
- if (!(stream = fopen(DO_GETXXKEY_R_PATHNAME, "r"))) {
- rv = errno;
- } else {
- __STDIO_SET_USER_LOCKING(stream);
- do {
- if (!(rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf,
- buffer, buflen, stream))
- ) {
- if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
- *result = resultbuf;
- break;
- }
- } else {
- if (rv == ENOENT) { /* end-of-file encountered. */
- rv = 0;
- }
- break;
- }
- } while (1);
- fclose(stream);
- }
-
- return rv;
-}
-
-#endif
-/**********************************************************************/
#ifdef L_getpwuid
struct passwd *getpwuid(uid_t uid)
@@ -680,7 +635,7 @@ struct spwd *sgetspent(const char *string)
int initgroups(const char *user, gid_t gid)
{
- FILE *grf;
+ FILE *grfile;
gid_t *group_list;
int num_groups, rv;
char **m;
@@ -691,15 +646,15 @@ int initgroups(const char *user, gid_t gid)
/* We alloc space for 8 gids at a time. */
if (((group_list = (gid_t *) malloc(8*sizeof(gid_t *))) != NULL)
- && ((grf = fopen(_PATH_GROUP, "r")) != NULL)
+ && ((grfile = fopen(_PATH_GROUP, "r")) != NULL)
) {
- __STDIO_SET_USER_LOCKING(grf);
+ __STDIO_SET_USER_LOCKING(grfile);
*group_list = gid;
num_groups = 1;
- while (!__pgsreader(__parsegrent, &group, buff, sizeof(buff), grf)) {
+ while (!__pgsreader(__parsegrent, &group, buff, sizeof(buff), grfile)) {
assert(group.gr_mem); /* Must have at least a NULL terminator. */
if (group.gr_gid != gid) {
for (m=group.gr_mem ; *m ; m++) {
@@ -723,7 +678,7 @@ int initgroups(const char *user, gid_t gid)
rv = setgroups(num_groups, group_list);
DO_CLOSE:
- fclose(grf);
+ fclose(grfile);
}
/* group_list will be NULL if initial malloc failed, which may trigger
diff --git a/libc/pwd_grp/pwd_grp_internal.c b/libc/pwd_grp/pwd_grp_internal.c
new file mode 100644
index 000000000..33cf0a313
--- /dev/null
+++ b/libc/pwd_grp/pwd_grp_internal.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2003 Manuel Novoa III
+ *
+ * Licensed under LGPL v2.1, see the file COPYING.LIB in this tarball for details.
+ */
+
+/* Nov 6, 2003 Initial version.
+ *
+ * NOTE: This implementation is quite strict about requiring all
+ * field seperators. It also does not allow leading whitespace
+ * except when processing the numeric fields. glibc is more
+ * lenient. See the various glibc difference comments below.
+ *
+ * TODO:
+ * Move to dynamic allocation of (currently staticly allocated)
+ * buffers; especially for the group-related functions since
+ * large group member lists will cause error returns.
+ *
+ */
+
+#define _GNU_SOURCE
+#include <features.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stddef.h>
+#include <errno.h>
+#include <assert.h>
+#include <ctype.h>
+#include <pwd.h>
+#include <grp.h>
+#include <paths.h>
+#ifdef __HAS_SHADOW__
+#include <shadow.h>
+#endif
+#ifdef __UCLIBC_HAS_THREADS__
+#include <pthread.h>
+#endif
+
+/**********************************************************************/
+/* Sizes for staticly allocated buffers. */
+
+/* If you change these values, also change _SC_GETPW_R_SIZE_MAX and
+ * _SC_GETGR_R_SIZE_MAX in libc/unistd/sysconf.c to match */
+#define PWD_BUFFER_SIZE 256
+#define GRP_BUFFER_SIZE 256
+
+/**********************************************************************/
+/* Prototypes for internal functions. */
+
+extern int __parsepwent(void *pw, char *line);
+extern int __parsegrent(void *gr, char *line);
+extern int __parsespent(void *sp, char *line);
+
+extern int __pgsreader(int (*__parserfunc)(void *d, char *line), void *data,
+ char *__restrict line_buff, size_t buflen, FILE *f);
+
+#ifndef GETXXKEY_R_FUNC
+#error GETXXKEY_R_FUNC is not defined!
+#endif
+/**********************************************************************/
+#ifdef GETXXKEY_R_FUNC
+
+int GETXXKEY_R_FUNC(DO_GETXXKEY_R_KEYTYPE key,
+ GETXXKEY_R_ENTTYPE *__restrict resultbuf,
+ char *__restrict buffer, size_t buflen,
+ GETXXKEY_R_ENTTYPE **__restrict result)
+{
+ FILE *stream;
+ int rv;
+
+ *result = NULL;
+
+ if (!(stream = fopen(DO_GETXXKEY_R_PATHNAME, "r"))) {
+ rv = errno;
+ } else {
+ __STDIO_SET_USER_LOCKING(stream);
+ do {
+ if (!(rv = __pgsreader(GETXXKEY_R_PARSER, resultbuf,
+ buffer, buflen, stream))
+ ) {
+ if (GETXXKEY_R_TEST(resultbuf)) { /* Found key? */
+ *result = resultbuf;
+ break;
+ }
+ } else {
+ if (rv == ENOENT) { /* end-of-file encountered. */
+ rv = 0;
+ }
+ break;
+ }
+ } while (1);
+ fclose(stream);
+ }
+
+ return rv;
+}
+
+#endif
+/**********************************************************************/
+#undef GETXXKEY_R_FUNC
+#undef GETXXKEY_R_PARSER
+#undef GETXXKEY_R_ENTTYPE
+#undef GETXXKEY_R_TEST
+#undef DO_GETXXKEY_R_KEYTYPE
+#undef DO_GETXXKEY_R_PATHNAME
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 10:10:08 +0000