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-rw-r--r--include/utmp.h1
-rw-r--r--libc/inet/resolv.c4
-rw-r--r--libc/misc/fnmatch/fnmatch.c8
-rw-r--r--libc/misc/regex/regex_old.c6
-rw-r--r--libc/misc/utmp/utent.c91
-rw-r--r--libc/sysdeps/linux/i386/bits/syscalls.h263
-rw-r--r--libc/unistd/confstr.c18
-rw-r--r--libutil/login.c57
-rw-r--r--libutil/logout.c20
-rw-r--r--test/Rules.mak1
-rw-r--r--test/unistd/Makefile.in7
-rw-r--r--utils/Makefile.in7
-rw-r--r--utils/getconf.c (renamed from test/unistd/getconf.c)0
13 files changed, 297 insertions, 186 deletions
diff --git a/include/utmp.h b/include/utmp.h
index 182f45e1c..27454a66a 100644
--- a/include/utmp.h
+++ b/include/utmp.h
@@ -74,7 +74,6 @@ extern void endutent (void) __THROW;
/* Search forward from the current point in the utmp file until the
next entry with a ut_type matching ID->ut_type. */
extern struct utmp *getutid (__const struct utmp *__id) __THROW;
-libc_hidden_proto(getutid)
/* Search forward from the current point in the utmp file until the
next entry with a ut_line matching LINE->ut_line. */
diff --git a/libc/inet/resolv.c b/libc/inet/resolv.c
index 056539f6e..9459199da 100644
--- a/libc/inet/resolv.c
+++ b/libc/inet/resolv.c
@@ -1517,10 +1517,8 @@ int attribute_hidden __dns_lookup(const char *name,
memcpy(a, &ma, sizeof(ma));
if (a->atype != T_SIG && (NULL == a->buf || (type != T_A && type != T_AAAA)))
break;
- if (a->atype != type) {
- free(a->dotted);
+ if (a->atype != type)
continue;
- }
a->add_count = h.ancount - j - 1;
if ((a->rdlength + sizeof(struct in_addr*)) * a->add_count > a->buflen)
break;
diff --git a/libc/misc/fnmatch/fnmatch.c b/libc/misc/fnmatch/fnmatch.c
index d25619b34..0fa043bad 100644
--- a/libc/misc/fnmatch/fnmatch.c
+++ b/libc/misc/fnmatch/fnmatch.c
@@ -21,13 +21,7 @@
# include <config.h>
#endif
-/* include unistd.h before we undefine _LIBC
- * because smallint is defined in unistd.h based
- * on _LIBC. For architectures that dont define
- * smallint of there own and rely upon the definition
- * from unistd.h will not build this file otherwise
- */
-
+/* unistd.h must be included with _LIBC defined: we need smallint */
#include <unistd.h>
#include <features.h>
#ifdef __UCLIBC__
diff --git a/libc/misc/regex/regex_old.c b/libc/misc/regex/regex_old.c
index bc2ad6cb8..a3c30b51a 100644
--- a/libc/misc/regex/regex_old.c
+++ b/libc/misc/regex/regex_old.c
@@ -23,7 +23,8 @@
/* To exclude some unwanted junk.... */
#undef emacs
#include <features.h>
-
+/* unistd.h must be included with _LIBC defined: we need smallint */
+#include <unistd.h>
#ifdef __UCLIBC__
# undef _LIBC
# define _REGEX_RE_COMP
@@ -33,7 +34,6 @@
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
-#include <unistd.h>
#include <stdio.h>
/* AIX requires this to be the first thing in the file. */
@@ -263,7 +263,7 @@ static void
init_syntax_once (void)
{
register int c;
- static int done = 0;
+ static smallint done = 0;
if (done)
return;
diff --git a/libc/misc/utmp/utent.c b/libc/misc/utmp/utent.c
index a3f01b6e9..a678130a3 100644
--- a/libc/misc/utmp/utent.c
+++ b/libc/misc/utmp/utent.c
@@ -25,14 +25,26 @@
__UCLIBC_MUTEX_STATIC(utmplock, PTHREAD_MUTEX_INITIALIZER);
+/* Do not create extra unlocked functions if no locking is needed */
+#if defined __UCLIBC_HAS_THREADS__
+# define static_if_threaded static
+#else
+# define static_if_threaded /* nothing */
+# define __setutent setutent
+# define __getutent getutent
+# define __getutid getutid
+#endif
+
+
/* 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;
+
/* This function must be called with the LOCK held */
-static void __setutent(void)
+static_if_threaded void __setutent(void)
{
if (static_fd < 0) {
static_fd = open_not_cancel_2(static_ut_name, O_RDWR | O_CLOEXEC);
@@ -50,20 +62,19 @@ static void __setutent(void)
}
lseek(static_fd, 0, SEEK_SET);
}
-
+#if defined __UCLIBC_HAS_THREADS__
void setutent(void)
{
__UCLIBC_MUTEX_LOCK(utmplock);
__setutent();
__UCLIBC_MUTEX_UNLOCK(utmplock);
}
+#endif
libc_hidden_def(setutent)
/* This function must be called with the LOCK held */
-static struct utmp *__getutent(void)
+static_if_threaded struct utmp *__getutent(void)
{
- struct utmp *ret = NULL;
-
if (static_fd < 0) {
__setutent();
if (static_fd < 0) {
@@ -72,11 +83,22 @@ static struct utmp *__getutent(void)
}
if (read_not_cancel(static_fd, &static_utmp, sizeof(static_utmp)) == sizeof(static_utmp)) {
- ret = &static_utmp;
+ return &static_utmp;
}
+ return NULL;
+}
+#if defined __UCLIBC_HAS_THREADS__
+struct utmp *getutent(void)
+{
+ struct utmp *ret;
+
+ __UCLIBC_MUTEX_LOCK(utmplock);
+ ret = __getutent();
+ __UCLIBC_MUTEX_UNLOCK(utmplock);
return ret;
}
+#endif
void endutent(void)
{
@@ -87,63 +109,52 @@ void endutent(void)
__UCLIBC_MUTEX_UNLOCK(utmplock);
}
-struct utmp *getutent(void)
-{
- struct utmp *ret = NULL;
-
- __UCLIBC_MUTEX_LOCK(utmplock);
- ret = __getutent();
- __UCLIBC_MUTEX_UNLOCK(utmplock);
- return ret;
-}
-
/* This function must be called with the LOCK held */
-static struct utmp *__getutid(const struct utmp *utmp_entry)
+static_if_threaded struct utmp *__getutid(const struct utmp *utmp_entry)
{
struct utmp *lutmp;
+ unsigned type;
+
+ /* We use the fact that constants we are interested in are: */
+ /* RUN_LVL=1, ... OLD_TIME=4; INIT_PROCESS=5, ... USER_PROCESS=8 */
+ type = utmp_entry->ut_type - 1;
+ type /= 4;
while ((lutmp = __getutent()) != NULL) {
- if ( (utmp_entry->ut_type == RUN_LVL ||
- utmp_entry->ut_type == BOOT_TIME ||
- utmp_entry->ut_type == NEW_TIME ||
- utmp_entry->ut_type == OLD_TIME) &&
- lutmp->ut_type == utmp_entry->ut_type)
- {
- return lutmp;
- }
- if ( (utmp_entry->ut_type == INIT_PROCESS ||
- utmp_entry->ut_type == DEAD_PROCESS ||
- utmp_entry->ut_type == LOGIN_PROCESS ||
- utmp_entry->ut_type == USER_PROCESS) &&
- !strncmp(lutmp->ut_id, utmp_entry->ut_id, sizeof(lutmp->ut_id)))
- {
- return lutmp;
- }
+ if (type == 0 && lutmp->ut_type == utmp_entry->ut_type) {
+ /* one of RUN_LVL, BOOT_TIME, NEW_TIME, OLD_TIME */
+ return lutmp;
+ }
+ if (type == 1 && strncmp(lutmp->ut_id, utmp_entry->ut_id, sizeof(lutmp->ut_id)) == 0) {
+ /* INIT_PROCESS, LOGIN_PROCESS, USER_PROCESS, DEAD_PROCESS */
+ return lutmp;
+ }
}
return NULL;
}
-
+#if defined __UCLIBC_HAS_THREADS__
struct utmp *getutid(const struct utmp *utmp_entry)
{
- struct utmp *ret = NULL;
+ struct utmp *ret;
__UCLIBC_MUTEX_LOCK(utmplock);
ret = __getutid(utmp_entry);
__UCLIBC_MUTEX_UNLOCK(utmplock);
return ret;
}
-libc_hidden_def(getutid)
+#endif
struct utmp *getutline(const struct utmp *utmp_entry)
{
- struct utmp *lutmp = NULL;
+ struct utmp *lutmp;
__UCLIBC_MUTEX_LOCK(utmplock);
while ((lutmp = __getutent()) != NULL) {
- if ((lutmp->ut_type == USER_PROCESS || lutmp->ut_type == LOGIN_PROCESS) &&
- !strcmp(lutmp->ut_line, utmp_entry->ut_line)) {
- break;
+ 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) {
+ break;
+ }
}
}
__UCLIBC_MUTEX_UNLOCK(utmplock);
diff --git a/libc/sysdeps/linux/i386/bits/syscalls.h b/libc/sysdeps/linux/i386/bits/syscalls.h
index f9ea54ac7..0427d91cd 100644
--- a/libc/sysdeps/linux/i386/bits/syscalls.h
+++ b/libc/sysdeps/linux/i386/bits/syscalls.h
@@ -1,142 +1,189 @@
#ifndef _BITS_SYSCALLS_H
#define _BITS_SYSCALLS_H
+
#ifndef _SYSCALL_H
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
/*
- Some of the sneaky macros in the code were taken from
- glibc-2.2.5/sysdeps/unix/sysv/linux/i386/sysdep.h
-*/
+ * Some of the sneaky macros in the code were taken from
+ * glibc-2.2.5/sysdeps/unix/sysv/linux/i386/sysdep.h
+ */
#ifndef __ASSEMBLER__
#include <errno.h>
-/* We need some help from the assembler to generate optimal code. We
- define some macros here which later will be used. */
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+({ \
+ register unsigned int resultvar; \
+ __asm__ __volatile__ ( \
+ LOADARGS_##nr \
+ "movl %1, %%eax\n\t" \
+ "int $0x80\n\t" \
+ RESTOREARGS_##nr \
+ : "=a" (resultvar) \
+ : "i" (name) ASMFMT_##nr(args) : "memory", "cc" \
+ ); \
+ (int) resultvar; \
+})
+
-#if defined __SUPPORT_LD_DEBUG__ && defined __DOMULTI__
-#error LD debugging and DOMULTI are incompatible
-#endif
+#if 1 /* defined __PIC__ || defined __pic__ */
+/* This code avoids pushing/popping ebx as much as possible.
+ * I think the main reason was that older GCCs had problems
+ * with proper saving/restoring of ebx if "b" constraint was used,
+ * which was breaking -fPIC code really badly.
+ * At least gcc 4.2.x seems to not need these tricks anymore,
+ * but this code is still useful because it often avoids
+ * using stack for saving ebx.
+ * Keeping it unconditionally enabled for now.
+ */
+
+/* We need some help from the assembler to generate optimal code.
+ * We define some macros here which later will be used. */
+
+__asm__ (
#ifdef __DOMULTI__
-__asm__ (".L__X'%ebx = 1\n\t"
- ".L__X'%ecx = 2\n\t"
- ".L__X'%edx = 2\n\t"
- ".L__X'%eax = 3\n\t"
- ".L__X'%esi = 3\n\t"
- ".L__X'%edi = 3\n\t"
- ".L__X'%ebp = 3\n\t"
- ".L__X'%esp = 3\n\t"
- ".ifndef _BITS_SYSCALLS_ASM\n\t"
- ".set _BITS_SYSCALLS_ASM,1\n\t"
- ".macro bpushl name reg\n\t"
- ".if 1 - \\name\n\t"
- ".if 2 - \\name\n\t"
- "pushl %ebx\n\t"
- ".else\n\t"
- "xchgl \\reg, %ebx\n\t"
- ".endif\n\t"
- ".endif\n\t"
- ".endm\n\t"
- ".macro bpopl name reg\n\t"
- ".if 1 - \\name\n\t"
- ".if 2 - \\name\n\t"
- "popl %ebx\n\t"
- ".else\n\t"
- "xchgl \\reg, %ebx\n\t"
- ".endif\n\t"
- ".endif\n\t"
- ".endm\n\t"
- ".macro bmovl name reg\n\t"
- ".if 1 - \\name\n\t"
- ".if 2 - \\name\n\t"
- "movl \\reg, %ebx\n\t"
- ".endif\n\t"
- ".endif\n\t"
- ".endm\n\t"
- ".endif\n\t");
-#else
-__asm__ (".L__X'%ebx = 1\n\t"
- ".L__X'%ecx = 2\n\t"
- ".L__X'%edx = 2\n\t"
- ".L__X'%eax = 3\n\t"
- ".L__X'%esi = 3\n\t"
- ".L__X'%edi = 3\n\t"
- ".L__X'%ebp = 3\n\t"
- ".L__X'%esp = 3\n\t"
- ".macro bpushl name reg\n\t"
- ".if 1 - \\name\n\t"
- ".if 2 - \\name\n\t"
- "pushl %ebx\n\t"
- ".else\n\t"
- "xchgl \\reg, %ebx\n\t"
- ".endif\n\t"
- ".endif\n\t"
- ".endm\n\t"
- ".macro bpopl name reg\n\t"
- ".if 1 - \\name\n\t"
- ".if 2 - \\name\n\t"
- "popl %ebx\n\t"
- ".else\n\t"
- "xchgl \\reg, %ebx\n\t"
- ".endif\n\t"
- ".endif\n\t"
- ".endm\n\t"
- ".macro bmovl name reg\n\t"
- ".if 1 - \\name\n\t"
- ".if 2 - \\name\n\t"
- "movl \\reg, %ebx\n\t"
- ".endif\n\t"
- ".endif\n\t"
- ".endm\n\t");
+ /* Protect against asm macro redefinition (happens in __DOMULTI__ mode).
+ * Unfortunately, it ends up visible in .o files. */
+ ".ifndef _BITS_SYSCALLS_ASM\n\t"
+ ".set _BITS_SYSCALLS_ASM,1\n\t"
#endif
+ ".L__X'%ebx = 1\n\t"
+ ".L__X'%ecx = 2\n\t"
+ ".L__X'%edx = 2\n\t"
+ ".L__X'%eax = 3\n\t"
+ ".L__X'%esi = 3\n\t"
+ ".L__X'%edi = 3\n\t"
+ ".L__X'%ebp = 3\n\t"
+ ".L__X'%esp = 3\n\t"
-#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
- ({ \
- register unsigned int resultvar; \
- __asm__ __volatile__ ( \
- LOADARGS_##nr \
- "movl %1, %%eax\n\t" \
- "int $0x80\n\t" \
- RESTOREARGS_##nr \
- : "=a" (resultvar) \
- : "g" (name) ASMFMT_##nr(args) : "memory", "cc"); \
- (int) resultvar; })
+ /* Loading param #1 (ebx) is done by loading it into
+ * another register, and then performing bpushl+bmovl,
+ * since we must preserve ebx */
+
+ ".macro bpushl name reg\n\t"
+ ".if 1 - \\name\n\t" /* if reg!=ebx... */
+ ".if 2 - \\name\n\t" /* if reg can't be clobbered... */
+ "pushl %ebx\n\t" /* save ebx on stack */
+ ".else\n\t"
+ "xchgl \\reg, %ebx\n\t" /* else save ebx in reg, and load reg to ebx */
+ ".endif\n\t"
+ ".endif\n\t"
+ ".endm\n\t"
+
+ ".macro bmovl name reg\n\t"
+ ".if 1 - \\name\n\t"
+ ".if 2 - \\name\n\t" /* if reg can't be clobbered... */
+ "movl \\reg, %ebx\n\t" /* load reg to ebx */
+ ".endif\n\t"
+ ".endif\n\t"
+ ".endm\n\t"
+
+ ".macro bpopl name reg\n\t"
+ ".if 1 - \\name\n\t"
+ ".if 2 - \\name\n\t" /* if reg can't be clobbered... */
+ "popl %ebx\n\t" /* restore ebx from stack */
+ ".else\n\t"
+ "xchgl \\reg, %ebx\n\t" /* else restore ebx from reg */
+ ".endif\n\t"
+ ".endif\n\t"
+ ".endm\n\t"
+
+#ifdef __DOMULTI__
+ ".endif\n\t" /* _BITS_SYSCALLS_ASM */
+#endif
+);
#define LOADARGS_0
-#define LOADARGS_1 \
- "bpushl .L__X'%k2, %k2\n\t" \
- "bmovl .L__X'%k2, %k2\n\t"
-#define LOADARGS_2 LOADARGS_1
-#define LOADARGS_3 LOADARGS_1
-#define LOADARGS_4 LOADARGS_1
-#define LOADARGS_5 LOADARGS_1
-#define LOADARGS_6 LOADARGS_1 "push %%ebp ; movl %7, %%ebp\n\t"
+#define LOADARGS_1 "bpushl .L__X'%k2, %k2\n\t" "bmovl .L__X'%k2, %k2\n\t"
+#define LOADARGS_2 LOADARGS_1
+#define LOADARGS_3 LOADARGS_1
+#define LOADARGS_4 LOADARGS_1
+#define LOADARGS_5 LOADARGS_1
+#define LOADARGS_6 LOADARGS_1 "push %%ebp\n\t" "movl %7, %%ebp\n\t"
#define RESTOREARGS_0
-#define RESTOREARGS_1 \
- "bpopl .L__X'%k2, %k2\n\t"
-#define RESTOREARGS_2 RESTOREARGS_1
-#define RESTOREARGS_3 RESTOREARGS_1
-#define RESTOREARGS_4 RESTOREARGS_1
-#define RESTOREARGS_5 RESTOREARGS_1
-#define RESTOREARGS_6 "pop %%ebp\n\t" RESTOREARGS_1
+#define RESTOREARGS_1 "bpopl .L__X'%k2, %k2\n\t"
+#define RESTOREARGS_2 RESTOREARGS_1
+#define RESTOREARGS_3 RESTOREARGS_1
+#define RESTOREARGS_4 RESTOREARGS_1
+#define RESTOREARGS_5 RESTOREARGS_1
+#define RESTOREARGS_6 "pop %%ebp\n\t" RESTOREARGS_1
#define ASMFMT_0()
+/* "acdSD" constraint would work too, but "SD" would use esi/edi and cause
+ * them to be pushed/popped by compiler, "a" would use eax and cause ebx
+ * to be saved/restored on stack, not in register. Narrowing choice down
+ * to "ecx or edx" results in smaller and faster code: */
#define ASMFMT_1(arg1) \
- , "acdSD" (arg1)
+ , "cd" (arg1)
+/* Can use "adSD" constraint here: */
#define ASMFMT_2(arg1, arg2) \
- , "adSD" (arg1), "c" (arg2)
+ , "d" (arg1), "c" (arg2)
+/* Can use "aSD" constraint here: */
#define ASMFMT_3(arg1, arg2, arg3) \
- , "aSD" (arg1), "c" (arg2), "d" (arg3)
+ , "a" (arg1), "c" (arg2), "d" (arg3)
+/* Can use "aD" constraint here: */
#define ASMFMT_4(arg1, arg2, arg3, arg4) \
- , "aD" (arg1), "c" (arg2), "d" (arg3), "S" (arg4)
+ , "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4)
#define ASMFMT_5(arg1, arg2, arg3, arg4, arg5) \
, "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5)
#define ASMFMT_6(arg1, arg2, arg3, arg4, arg5, arg6) \
, "a" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5), "m" (arg6)
+#else /* !PIC */
+
+/* Simpler code which just uses "b" constraint to load ebx.
+ * Seems to work with gc 4.2.x, and generates slightly smaller,
+ * but slightly slower code. Example (time syscall):
+ *
+ * - 8b 4c 24 04 mov 0x4(%esp),%ecx
+ * - 87 cb xchg %ecx,%ebx
+ * + 53 push %ebx
+ * + 8b 5c 24 08 mov 0x8(%esp),%ebx
+ * b8 0d 00 00 00 mov $0xd,%eax
+ * cd 80 int $0x80
+ * - 87 cb xchg %ecx,%ebx
+ * + 5b pop %ebx
+ * c3 ret
+ *
+ * 2 bytes smaller, but uses stack via "push/pop ebx"
+ */
+
+#define LOADARGS_0
+#define LOADARGS_1
+#define LOADARGS_2
+#define LOADARGS_3
+#define LOADARGS_4
+#define LOADARGS_5
+#define LOADARGS_6 "push %%ebp\n\t" "movl %7, %%ebp\n\t"
+
+#define RESTOREARGS_0
+#define RESTOREARGS_1
+#define RESTOREARGS_2
+#define RESTOREARGS_3
+#define RESTOREARGS_4
+#define RESTOREARGS_5
+#define RESTOREARGS_6 "pop %%ebp\n\t"
+
+#define ASMFMT_0()
+#define ASMFMT_1(arg1) \
+ , "b" (arg1)
+#define ASMFMT_2(arg1, arg2) \
+ , "b" (arg1), "c" (arg2)
+#define ASMFMT_3(arg1, arg2, arg3) \
+ , "b" (arg1), "c" (arg2), "d" (arg3)
+#define ASMFMT_4(arg1, arg2, arg3, arg4) \
+ , "b" (arg1), "c" (arg2), "d" (arg3), "S" (arg4)
+#define ASMFMT_5(arg1, arg2, arg3, arg4, arg5) \
+ , "b" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5)
+#define ASMFMT_6(arg1, arg2, arg3, arg4, arg5, arg6) \
+ , "b" (arg1), "c" (arg2), "d" (arg3), "S" (arg4), "D" (arg5), "m" (arg6)
+
+#endif /* !PIC */
+
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
diff --git a/libc/unistd/confstr.c b/libc/unistd/confstr.c
index 16b57bee9..957ee4d27 100644
--- a/libc/unistd/confstr.c
+++ b/libc/unistd/confstr.c
@@ -42,6 +42,24 @@ size_t confstr (int name, char *buf, size_t len)
string_len = sizeof (cs_path);
}
break;
+#ifdef __UCLIBC_HAS_THREADS__
+ case _CS_GNU_LIBPTHREAD_VERSION:
+# if defined __LINUXTHREADS_OLD__
+ string = "linuxthreads-0.01";
+ string_len = sizeof("linuxthreads-x.xx");
+# elif defined __LINUXTHREADS_NEW__
+ string = "linuxthreads-0.10";
+ string_len = sizeof("linuxthreads-x.xx");
+# elif defined __UCLIBC_HAS_THREADS_NATIVE__
+# define __NPTL_VERSION ("NPTL " \
+ #__UCLIBC_MAJOR__ "." \
+ #__UCLIBC_MINOR__ "." \
+ #__UCLIBC_SUBLEVEL__)
+ string = __NPTL_VERSION;
+ string_len = sizeof(__NPTL_VERSION);
+# endif
+ break;
+#endif
default:
__set_errno (EINVAL);
return 0;
diff --git a/libutil/login.c b/libutil/login.c
index bd1dd29ee..4007e4c7e 100644
--- a/libutil/login.c
+++ b/libutil/login.c
@@ -5,21 +5,56 @@
#include <stdlib.h>
#include <utmp.h>
-/* Write the given entry into utmp and wtmp. */
-void login (const struct utmp *entry)
+/* Write the given entry into utmp and wtmp.
+ * Note: the match in utmp is done against ut_id field,
+ * which is NOT set by this function - caller must set it.
+ */
+void login(const struct utmp *entry)
{
- struct utmp copy = *entry;
+ struct utmp copy;
+ char tty_name[sizeof(copy.ut_line) + 6];
+ int fd;
- utmpname(_PATH_UTMP);
- setutent();
+// Manpage:
+// login() takes the argument ut struct, fills the field ut->ut_type
+// (if there is such a field) with the value USER_PROCESS,
+// and fills the field ut->ut_pid (if there is such a field)
+// with the process ID of the calling process.
+ copy = *entry;
#if _HAVE_UT_TYPE - 0
- copy.ut_type = USER_PROCESS;
+ copy.ut_type = USER_PROCESS;
#endif
#if _HAVE_UT_PID - 0
- copy.ut_pid = getpid();
+ copy.ut_pid = getpid();
#endif
- strncpy (copy.ut_line, entry->ut_line, UT_LINESIZE);
- pututline(entry);
- endutent();
-}
+// Then it tries to fill the field ut->ut_line. It takes the first of stdin,
+// stdout, stderr that is a tty, and stores the corresponding pathname minus
+// a possible leading /dev/ into this field, and then writes the struct
+// to the utmp file. On the other hand, if no tty name was found,
+// this field is filled with "???" and the struct is not written
+// to the utmp file.
+ fd = 0;
+ while (fd != 3 && ttyname_r(fd, tty_name, sizeof(tty_name)) != 0)
+ fd++;
+ if (fd != 3) {
+ if (strncmp(tty_name, "/dev/", 5) == 0)
+ strncpy(copy.ut_line, tty_name + 5, sizeof(copy.ut_line)-1);
+ else
+ strncpy(copy.ut_line, tty_name, sizeof(copy.ut_line)-1);
+ copy.ut_line[sizeof(copy.ut_line)-1] = '\0';
+
+ /* utmpname(_PATH_UTMP); - why?
+ * this makes it impossible for caller to use other file!
+ * Does any standard or historical precedent says this must be done? */
+ setutent();
+ /* Replaces record with matching ut_id, or appends new one: */
+ pututline(&copy);
+ endutent();
+ } else {
+ strncpy(copy.ut_line, "???", sizeof(copy.ut_line));
+ }
+
+// After this, the struct is written to the wtmp file.
+ updwtmp(_PATH_WTMP, &copy);
+}
diff --git a/libutil/logout.c b/libutil/logout.c
index e6d9565ab..5f58b8f42 100644
--- a/libutil/logout.c
+++ b/libutil/logout.c
@@ -29,9 +29,9 @@ logout (const char *line)
struct utmp *ut;
int result = 0;
- /* Tell that we want to use the UTMP file. */
- if (utmpname (_PATH_UTMP) == -1)
- return 0;
+ /* if (utmpname (_PATH_UTMP) == -1) return 0; - why?
+ * this makes it impossible for caller to use other file!
+ * Does any standard or historical precedent says this must be done? */
/* Open UTMP file. */
setutent ();
@@ -43,7 +43,7 @@ logout (const char *line)
strncpy (tmp.ut_line, line, sizeof tmp.ut_line);
/* Read the record. */
- if( (ut = getutline(&tmp)) )
+ if ((ut = getutline(&tmp)) != NULL)
{
/* Clear information about who & from where. */
memset (ut->ut_name, 0, sizeof ut->ut_name);
@@ -54,12 +54,12 @@ logout (const char *line)
# if !defined __WORDSIZE_COMPAT32 || __WORDSIZE_COMPAT32 == 0
gettimeofday (&ut->ut_tv, NULL);
# else
- {
- struct timeval tv;
- gettimeofday (&tv, NULL);
- ut->ut_tv.tv_sec = tv.tv_sec;
- ut->ut_tv.tv_usec = tv.tv_usec;
- }
+ {
+ struct timeval tv;
+ gettimeofday (&tv, NULL);
+ ut->ut_tv.tv_sec = tv.tv_sec;
+ ut->ut_tv.tv_usec = tv.tv_usec;
+ }
# endif
#else
time (&ut->ut_time);
diff --git a/test/Rules.mak b/test/Rules.mak
index 29b551fa1..2131a7b18 100644
--- a/test/Rules.mak
+++ b/test/Rules.mak
@@ -44,6 +44,7 @@ endif
export TARGET_ARCH
RM_R = $(Q)$(RM) -r
+LN_S = $(Q)$(LN) -fs
ifneq ($(KERNEL_HEADERS),)
ifeq ($(patsubst /%,/,$(KERNEL_HEADERS)),/)
diff --git a/test/unistd/Makefile.in b/test/unistd/Makefile.in
index ae0eeb499..8ddfc52da 100644
--- a/test/unistd/Makefile.in
+++ b/test/unistd/Makefile.in
@@ -10,6 +10,11 @@ else
OPTS_tstgetopt := -a -b -cfoobar --required foobar --optional=bazbug --none --colou --color --colour random
endif
-TESTS_DISABLED+=getconf
+# getconf.c lives in utils/
+# Testsuite cannot currently be built with O= anyway, so hardcode path here
+getconf.c:
+ $(LN_S) ../../utils/$(@F) .
+EXTRA_CLEAN += getconf.c
+TESTS_DISABLED += getconf
CFLAGS_getconf = -DGETCONF_DIR='"$(CURDIR)"'
shell_tst-getconf: getconf getconf_glibc
diff --git a/utils/Makefile.in b/utils/Makefile.in
index 2aae1df71..89cb800e9 100644
--- a/utils/Makefile.in
+++ b/utils/Makefile.in
@@ -40,7 +40,8 @@ CFLAGS-iconv := $(CFLAGS-utils) \
-DL_iconv_main \
CFLAGS-locale := $(CFLAGS-utils)
-
+CFLAGS-getconf :=$(CFLAGS-utils) \
+ -DGETCONF_DIR='"$(CURDIR)"'
# "make hostutils" flags
@@ -76,6 +77,7 @@ utils_OUT := $(top_builddir)utils
DEPS-ldconfig := $(utils_DIR)/chroot_realpath.c
DEPS-ldconfig.host := $(DEPS-ldconfig)
+utils_OBJ := getconf
ifeq ($(HAVE_SHARED),y)
utils_OBJ += ldconfig ldd
endif
@@ -115,6 +117,7 @@ install-y += utils_install
# This installs both utils and hostutils, so doesn't depend on either.
utils_install: $(addsuffix $(DOTHOST), $(utils_OBJ) $(utils_LOCALE_OBJ))
+ $(Q)$(INSTALL) -D -m 755 $(utils_OUT)/getconf$(DOTHOST) $(PREFIX)$(DEVEL_PREFIX)usr/bin/getconf
ifeq ($(HAVE_SHARED),y)
$(Q)$(INSTALL) -D -m 755 $(utils_OUT)/ldd$(DOTHOST) $(PREFIX)$(DEVEL_PREFIX)bin/ldd
$(Q)$(INSTALL) -D -m 755 $(utils_OUT)/ldconfig$(DOTHOST) $(PREFIX)$(RUNTIME_PREFIX)sbin/ldconfig
@@ -128,6 +131,6 @@ endif
objclean-y += CLEAN_utils
CLEAN_utils:
- $(do_rm) $(addprefix $(utils_OUT)/, ldconfig ldd iconv locale *.host)
+ $(do_rm) $(addprefix $(utils_OUT)/, getconf iconv ldconfig ldd locale *.host)
$(Q)# This is a hack..
$(Q)$(RM) $(utils_OUT)/.*.dep
diff --git a/test/unistd/getconf.c b/utils/getconf.c
index 81566df7b..81566df7b 100644
--- a/test/unistd/getconf.c
+++ b/utils/getconf.c
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 12:27:50 +0000