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Diffstat (limited to 'libc/misc/utmp/utent.c')
-rw-r--r--libc/misc/utmp/utent.c121
1 files changed, 72 insertions, 49 deletions
diff --git a/libc/misc/utmp/utent.c b/libc/misc/utmp/utent.c
index a258cb4..3671bb0 100644
--- a/libc/misc/utmp/utent.c
+++ b/libc/misc/utmp/utent.c
@@ -19,7 +19,7 @@
#include <paths.h>
#include <errno.h>
#include <string.h>
-#include <utmp.h>
+#include "internal/utmp.h"
#include <not-cancel.h>
#include <bits/uClibc_mutex.h>
@@ -27,17 +27,17 @@ __UCLIBC_MUTEX_STATIC(utmplock, PTHREAD_MUTEX_INITIALIZER);
/* Some global crap */
static int static_fd = -1;
-static struct utmp static_utmp;
-static const char default_file_name[] = _PATH_UTMP;
-static const char *static_ut_name = default_file_name;
+static struct UT static_utmp;
+static const char default_file[] = __DEFAULT_PATH_UTMP;
+static const char *current_file = default_file;
/* This function must be called with the LOCK held */
-static void __setutent_unlocked(void)
+static void __set_unlocked(void)
{
if (static_fd < 0) {
- static_fd = open_not_cancel_2(static_ut_name, O_RDWR | O_CLOEXEC);
+ static_fd = open_not_cancel_2(current_file, O_RDWR | O_CLOEXEC);
if (static_fd < 0) {
- static_fd = open_not_cancel_2(static_ut_name, O_RDONLY | O_CLOEXEC);
+ static_fd = open_not_cancel_2(current_file, O_RDONLY | O_CLOEXEC);
if (static_fd < 0) {
return; /* static_fd remains < 0 */
}
@@ -51,22 +51,23 @@ static void __setutent_unlocked(void)
lseek(static_fd, 0, SEEK_SET);
}
#if defined __UCLIBC_HAS_THREADS__
-void setutent(void)
+void set(void)
{
__UCLIBC_MUTEX_LOCK(utmplock);
- __setutent_unlocked();
+ __set_unlocked();
__UCLIBC_MUTEX_UNLOCK(utmplock);
}
#else
-strong_alias(__setutent_unlocked,setutent)
+strong_alias(__set_unlocked,set)
#endif
-libc_hidden_def(setutent)
+/* not used in libc_hidden_def(set) */
+other(setutxent,setutent)
/* This function must be called with the LOCK held */
-static struct utmp *__getutent_unlocked(void)
+static struct UT *__get_unlocked(void)
{
if (static_fd < 0) {
- __setutent_unlocked();
+ __set_unlocked();
if (static_fd < 0)
return NULL;
}
@@ -79,21 +80,22 @@ static struct utmp *__getutent_unlocked(void)
return NULL;
}
#if defined __UCLIBC_HAS_THREADS__
-struct utmp *getutent(void)
+struct UT *get(void)
{
- struct utmp *ret;
+ struct UT *ret;
__UCLIBC_MUTEX_LOCK(utmplock);
- ret = __getutent_unlocked();
+ ret = __get_unlocked();
__UCLIBC_MUTEX_UNLOCK(utmplock);
return ret;
}
#else
-strong_alias(__getutent_unlocked,getutent)
+strong_alias(__get_unlocked,get)
#endif
-libc_hidden_def(getutent)
+/* not used in libc_hidden_def(get) */
+other(getutxent,getutent)
-void endutent(void)
+void end(void)
{
__UCLIBC_MUTEX_LOCK(utmplock);
if (static_fd >= 0)
@@ -101,12 +103,13 @@ void endutent(void)
static_fd = -1;
__UCLIBC_MUTEX_UNLOCK(utmplock);
}
-libc_hidden_def(endutent)
+/* not used in libc_hidden_def(end) */
+other(endutxent,endutent)
/* This function must be called with the LOCK held */
-static struct utmp *__getutid_unlocked(const struct utmp *utmp_entry)
+static struct UT *__getid_unlocked(const struct UT *utmp_entry)
{
- struct utmp *lutmp;
+ struct UT *lutmp;
unsigned type;
/* We use the fact that constants we are interested in are: */
@@ -114,7 +117,7 @@ static struct utmp *__getutid_unlocked(const struct utmp *utmp_entry)
type = utmp_entry->ut_type - 1;
type /= 4;
- while ((lutmp = __getutent_unlocked()) != NULL) {
+ while ((lutmp = __get_unlocked()) != NULL) {
if (type == 0 && lutmp->ut_type == utmp_entry->ut_type) {
/* one of RUN_LVL, BOOT_TIME, NEW_TIME, OLD_TIME */
return lutmp;
@@ -130,26 +133,27 @@ static struct utmp *__getutid_unlocked(const struct utmp *utmp_entry)
return NULL;
}
#if defined __UCLIBC_HAS_THREADS__
-struct utmp *getutid(const struct utmp *utmp_entry)
+struct UT *getid(const struct UT *utmp_entry)
{
- struct utmp *ret;
+ struct UT *ret;
__UCLIBC_MUTEX_LOCK(utmplock);
- ret = __getutid_unlocked(utmp_entry);
+ ret = __getid_unlocked(utmp_entry);
__UCLIBC_MUTEX_UNLOCK(utmplock);
return ret;
}
#else
-strong_alias(__getutid_unlocked,getutid)
+strong_alias(__getid_unlocked,getid)
#endif
-libc_hidden_def(getutid)
+/* not used in libc_hidden_def(getid) */
+other(getutxid,getutid)
-struct utmp *getutline(const struct utmp *utmp_entry)
+struct UT *getline(const struct UT *utmp_entry)
{
- struct utmp *lutmp;
+ struct UT *lutmp;
__UCLIBC_MUTEX_LOCK(utmplock);
- while ((lutmp = __getutent_unlocked()) != NULL) {
+ while ((lutmp = __get_unlocked()) != NULL) {
if (lutmp->ut_type == USER_PROCESS || lutmp->ut_type == LOGIN_PROCESS) {
if (strncmp(lutmp->ut_line, utmp_entry->ut_line,
sizeof(lutmp->ut_line)) == 0) {
@@ -160,39 +164,41 @@ struct utmp *getutline(const struct utmp *utmp_entry)
__UCLIBC_MUTEX_UNLOCK(utmplock);
return lutmp;
}
-libc_hidden_def(getutline)
+/* libc_hidden_def(getline) */
+other(getutxline,getutline)
-struct utmp *pututline(const struct utmp *utmp_entry)
+struct UT *putline(const struct UT *utmp_entry)
{
__UCLIBC_MUTEX_LOCK(utmplock);
/* Ignore the return value. That way, if they've already positioned
the file pointer where they want it, everything will work out. */
- lseek(static_fd, (off_t) - sizeof(struct utmp), SEEK_CUR);
+ lseek(static_fd, (off_t) - sizeof(struct UT), SEEK_CUR);
- if (__getutid_unlocked(utmp_entry) != NULL)
- lseek(static_fd, (off_t) - sizeof(struct utmp), SEEK_CUR);
+ if (__getid_unlocked(utmp_entry) != NULL)
+ lseek(static_fd, (off_t) - sizeof(struct UT), SEEK_CUR);
else
lseek(static_fd, (off_t) 0, SEEK_END);
- if (write(static_fd, utmp_entry, sizeof(struct utmp))
- != sizeof(struct utmp))
+ if (write(static_fd, utmp_entry, sizeof(struct UT))
+ != sizeof(struct UT))
utmp_entry = NULL;
__UCLIBC_MUTEX_UNLOCK(utmplock);
- return (struct utmp *)utmp_entry;
+ return (struct UT *)utmp_entry;
}
-libc_hidden_def(pututline)
+/* not used in libc_hidden_def(putline) */
+other(pututxline,pututline)
-int utmpname(const char *new_ut_name)
+int name(const char *new_file)
{
__UCLIBC_MUTEX_LOCK(utmplock);
- if (new_ut_name != NULL) {
- if (static_ut_name != default_file_name)
- free((char *)static_ut_name);
- static_ut_name = strdup(new_ut_name);
- if (static_ut_name == NULL) {
+ if (new_file != NULL) {
+ if (current_file != default_file)
+ free((char *)current_file);
+ current_file = strdup(new_file);
+ if (current_file == NULL) {
/* We should probably whine about out-of-memory
* errors here... Instead just reset to the default */
- static_ut_name = default_file_name;
+ current_file = default_file;
}
}
@@ -201,6 +207,23 @@ int utmpname(const char *new_ut_name)
static_fd = -1;
}
__UCLIBC_MUTEX_UNLOCK(utmplock);
- return 0; /* or maybe return -(static_ut_name != new_ut_name)? */
+ return 0; /* or maybe return -(current_file != new_file)? */
}
-libc_hidden_def(utmpname)
+/* not used in libc_hidden_def(name) */
+other(utmpxname,utmpname)
+
+void updw(const char *wtmp_file, const struct UT *lutmp)
+{
+ int fd;
+
+ fd = open_not_cancel_2(wtmp_file, O_APPEND | O_WRONLY);
+ if (fd >= 0) {
+ if (lockf(fd, F_LOCK, 0) == 0) {
+ write_not_cancel(fd, lutmp, sizeof(struct UT));
+ lockf(fd, F_ULOCK, 0);
+ close_not_cancel_no_status(fd);
+ }
+ }
+}
+/* not used in libc_hidden_def(updw) */
+other(updwtmpx,updwtmp)