diff --git a/project/common.mk b/project/common.mk
index 7e48395..56a4364 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -60,6 +60,7 @@ INTERNAL_SRCS = \
src/internal/$(PACKAGE)_mapfile_impl.c \
src/internal/$(PACKAGE)_objlist_impl.c \
src/internal/$(PACKAGE)_objmeta_impl.c \
+ src/internal/$(PACKAGE)_realpath_impl.c \
src/internal/$(PACKAGE)_snprintf_impl.c \
src/internal/$(PACKAGE)_symlink_impl.c \
diff --git a/project/headers.mk b/project/headers.mk
index 4a732de..75a59b8 100644
--- a/project/headers.mk
+++ b/project/headers.mk
@@ -18,6 +18,7 @@ INTERNAL_HEADERS = \
$(PROJECT_DIR)/src/internal/$(PACKAGE)_mkdir_impl.h \
$(PROJECT_DIR)/src/internal/$(PACKAGE)_objlist_impl.h \
$(PROJECT_DIR)/src/internal/$(PACKAGE)_readlink_impl.h \
+ $(PROJECT_DIR)/src/internal/$(PACKAGE)_realpath_impl.h \
$(PROJECT_DIR)/src/internal/$(PACKAGE)_snprintf_impl.h \
$(PROJECT_DIR)/src/internal/$(PACKAGE)_spawn_impl.h \
$(PROJECT_DIR)/src/internal/$(PACKAGE)_symlink_impl.h \
diff --git a/src/fallback/slbt_archive_import_mri.c b/src/fallback/slbt_archive_import_mri.c
index 6217859..705cb88 100644
--- a/src/fallback/slbt_archive_import_mri.c
+++ b/src/fallback/slbt_archive_import_mri.c
@@ -42,7 +42,7 @@ static char * slbt_mri_argument(
if (arg[0] == '/') {
target = arg;
} else {
- if (slbt_util_real_path(
+ if (slbt_realpath(
fdat,".",O_DIRECTORY,
mricwd,sizeof(mricwd)) < 0)
return 0;
diff --git a/src/internal/slibtool_lconf_impl.c b/src/internal/slibtool_lconf_impl.c
index 82904d2..298cb12 100644
--- a/src/internal/slibtool_lconf_impl.c
+++ b/src/internal/slibtool_lconf_impl.c
@@ -18,6 +18,7 @@
#include "slibtool_errinfo_impl.h"
#include "slibtool_symlink_impl.h"
#include "slibtool_readlink_impl.h"
+#include "slibtool_realpath_impl.h"
#include "slibtool_visibility_impl.h"
enum slbt_lconf_opt {
@@ -387,7 +388,7 @@ static int slbt_lconf_trace_result_plain(
fderr = slbt_driver_fderr(dctx);
- cpath = !(slbt_util_real_path(fdat,lconf,0,path,sizeof(path)))
+ cpath = !(slbt_realpath(fdat,lconf,0,path,sizeof(path)))
? path : lconf;
switch (err) {
@@ -435,7 +436,7 @@ static int slbt_lconf_trace_result_annotated(
fderr = slbt_driver_fderr(dctx);
- cpath = !(slbt_util_real_path(fdat,lconf,0,path,sizeof(path)))
+ cpath = !(slbt_realpath(fdat,lconf,0,path,sizeof(path)))
? path : lconf;
switch (err) {
diff --git a/src/internal/slibtool_realpath_impl.c b/src/internal/slibtool_realpath_impl.c
new file mode 100644
index 0000000..e1e47b5
--- /dev/null
+++ b/src/internal/slibtool_realpath_impl.c
@@ -0,0 +1,103 @@
+/*******************************************************************/
+/* slibtool: a skinny libtool implementation, written in C */
+/* Copyright (C) 2016--2024 SysDeer Technologies, LLC */
+/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
+/*******************************************************************/
+
+#include <fcntl.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <slibtool/slibtool.h>
+
+#include "slibtool_driver_impl.h"
+#include "slibtool_readlink_impl.h"
+#include "slibtool_realpath_impl.h"
+#include "slibtool_visibility_impl.h"
+
+#ifdef HAVE_SYS_SYSCALL_H
+#include <sys/syscall.h>
+#endif
+
+#ifdef _MIDIPIX_ABI
+#include <sys/fs.h>
+#endif
+
+#ifndef ENOTSUP
+#define ENOTSUP EOPNOTSUPP
+#endif
+
+#ifdef SYS___realpathat
+extern long syscall(int, ...);
+#endif
+
+slbt_hidden int slbt_realpath(
+ int fdat,
+ const char * path,
+ int options,
+ char * buf,
+ size_t buflen)
+{
+ int ret;
+ int fd;
+ int fdproc;
+ struct stat st;
+ struct stat stproc;
+ char procfspath[36];
+
+ /* common validation */
+ if (!buf || (options & O_CREAT)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ /* framework-based wrapper */
+#ifdef _MIDIPIX_ABI
+ return __fs_rpath(fdat,path,options,buf,buflen);
+#endif
+
+#ifdef SYS___realpathat
+ return syscall(SYS___realpathat,fdat,path,buf,buflen,0);
+#endif
+
+ /* buflen */
+ if (buflen < PATH_MAX) {
+ errno = ENOBUFS;
+ return -1;
+ }
+
+ /* AT_FDCWD */
+ if (fdat == AT_FDCWD) {
+ return realpath(path,buf) ? 0 : -1;
+ }
+
+ /* /proc/self/fd */
+ if ((fd = openat(fdat,path,options,0)) < 0)
+ return -1;
+
+ sprintf(procfspath,"/proc/self/fd/%d",fd);
+
+ if (slbt_readlinkat(fdat,procfspath,buf,buflen)) {
+ close(fd);
+ return -1;
+ }
+
+ if ((fdproc = openat(AT_FDCWD,buf,options|O_NOFOLLOW,0)) < 0) {
+ close(fd);
+ errno = ELOOP;
+ return -1;
+ }
+
+ ret = fstat(fd,&st) || fstat(fdproc,&stproc);
+
+ close(fd);
+ close(fdproc);
+
+ if (ret || (st.st_dev != stproc.st_dev) || (st.st_ino != stproc.st_ino)) {
+ errno = ENOTSUP;
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/src/internal/slibtool_realpath_impl.h b/src/internal/slibtool_realpath_impl.h
new file mode 100644
index 0000000..01df1c1
--- /dev/null
+++ b/src/internal/slibtool_realpath_impl.h
@@ -0,0 +1,13 @@
+#ifndef SLIBTOOL_REALPATH_IMPL_H
+#define SLIBTOOL_REALPATH_IMPL_H
+
+#include <stdlib.h>
+
+int slbt_realpath(
+ int fdat,
+ const char * path,
+ int options,
+ char * buf,
+ size_t buflen);
+
+#endif
diff --git a/src/logic/linkcmd/slbt_linkcmd_dsolib.c b/src/logic/linkcmd/slbt_linkcmd_dsolib.c
index 2d68c32..938c0ef 100644
--- a/src/logic/linkcmd/slbt_linkcmd_dsolib.c
+++ b/src/logic/linkcmd/slbt_linkcmd_dsolib.c
@@ -17,6 +17,7 @@
#include "slibtool_linkcmd_impl.h"
#include "slibtool_mapfile_impl.h"
#include "slibtool_metafile_impl.h"
+#include "slibtool_realpath_impl.h"
#include "slibtool_snprintf_impl.h"
#include "slibtool_symlink_impl.h"
#include "slibtool_spawn_impl.h"
@@ -243,7 +244,7 @@ slbt_hidden int slbt_exec_link_create_library(
}
/* cwd */
- if (slbt_util_real_path(fdcwd,".",O_DIRECTORY,cwd,sizeof(cwd)))
+ if (slbt_realpath(fdcwd,".",O_DIRECTORY,cwd,sizeof(cwd)))
return SLBT_SYSTEM_ERROR(dctx,0);
/* .libs/libfoo.so --> -L.libs -lfoo */
diff --git a/src/logic/linkcmd/slbt_linkcmd_executable.c b/src/logic/linkcmd/slbt_linkcmd_executable.c
index eae0769..6ad6994 100644
--- a/src/logic/linkcmd/slbt_linkcmd_executable.c
+++ b/src/logic/linkcmd/slbt_linkcmd_executable.c
@@ -17,6 +17,7 @@
#include "slibtool_linkcmd_impl.h"
#include "slibtool_mapfile_impl.h"
#include "slibtool_metafile_impl.h"
+#include "slibtool_realpath_impl.h"
#include "slibtool_snprintf_impl.h"
#include "slibtool_symlink_impl.h"
#include "slibtool_spawn_impl.h"
@@ -136,7 +137,7 @@ slbt_hidden int slbt_exec_link_create_executable(
verinfo = slbt_api_source_version();
/* cwd, DL_PATH fixup */
- if (slbt_util_real_path(fdcwd,".",O_DIRECTORY,cwd,sizeof(cwd)))
+ if (slbt_realpath(fdcwd,".",O_DIRECTORY,cwd,sizeof(cwd)))
return SLBT_SYSTEM_ERROR(dctx,0);
slbt_emit_fdwrap_dl_path_fixup(
diff --git a/src/output/slbt_output_fdcwd.c b/src/output/slbt_output_fdcwd.c
index 1d07892..6f2c9a4 100644
--- a/src/output/slbt_output_fdcwd.c
+++ b/src/output/slbt_output_fdcwd.c
@@ -13,6 +13,7 @@
#include "slibtool_driver_impl.h"
#include "slibtool_dprintf_impl.h"
+#include "slibtool_realpath_impl.h"
static const char aclr_reset[] = "\x1b[0m";
static const char aclr_bold[] = "\x1b[1m";
@@ -36,7 +37,7 @@ static int slbt_output_fdcwd_plain(const struct slbt_driver_ctx * dctx)
sprintf(scwd,"%d",fdcwd);
}
- if (slbt_util_real_path(fdcwd,".",0,path,sizeof(path)) < 0) {
+ if (slbt_realpath(fdcwd,".",0,path,sizeof(path)) < 0) {
ferror = 1;
memset(path,0,sizeof(path));
strerror_r(errno,path,sizeof(path));
@@ -72,7 +73,7 @@ static int slbt_output_fdcwd_annotated(const struct slbt_driver_ctx * dctx)
sprintf(scwd,"%d",fdcwd);
}
- if (slbt_util_real_path(fdcwd,".",0,path,sizeof(path)) < 0) {
+ if (slbt_realpath(fdcwd,".",0,path,sizeof(path)) < 0) {
ferror = 1;
memset(path,0,sizeof(path));
strerror_r(errno,path,sizeof(path));
diff --git a/src/util/slbt_realpath.c b/src/util/slbt_realpath.c
index 9e97427..a21a986 100644
--- a/src/util/slbt_realpath.c
+++ b/src/util/slbt_realpath.c
@@ -4,31 +4,7 @@
/* Released under the Standard MIT License; see COPYING.SLIBTOOL. */
/*******************************************************************/
-#include <fcntl.h>
-#include <stdlib.h>
-#include <limits.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <slibtool/slibtool.h>
-
-#include "slibtool_driver_impl.h"
-#include "slibtool_readlink_impl.h"
-
-#ifdef HAVE_SYS_SYSCALL_H
-#include <sys/syscall.h>
-#endif
-
-#ifdef _MIDIPIX_ABI
-#include <sys/fs.h>
-#endif
-
-#ifndef ENOTSUP
-#define ENOTSUP EOPNOTSUPP
-#endif
-
-#ifdef SYS___realpathat
-extern long syscall(int, ...);
-#endif
+#include "slibtool_realpath_impl.h"
int slbt_util_real_path(
int fdat,
@@ -37,65 +13,5 @@ int slbt_util_real_path(
char * buf,
size_t buflen)
{
- int ret;
- int fd;
- int fdproc;
- struct stat st;
- struct stat stproc;
- char procfspath[36];
-
- /* common validation */
- if (!buf || (options & O_CREAT)) {
- errno = EINVAL;
- return -1;
- }
-
- /* framework-based wrapper */
-#ifdef _MIDIPIX_ABI
- return __fs_rpath(fdat,path,options,buf,buflen);
-#endif
-
-#ifdef SYS___realpathat
- return syscall(SYS___realpathat,fdat,path,buf,buflen,0);
-#endif
-
- /* buflen */
- if (buflen < PATH_MAX) {
- errno = ENOBUFS;
- return -1;
- }
-
- /* AT_FDCWD */
- if (fdat == AT_FDCWD) {
- return realpath(path,buf) ? 0 : -1;
- }
-
- /* /proc/self/fd */
- if ((fd = openat(fdat,path,options,0)) < 0)
- return -1;
-
- sprintf(procfspath,"/proc/self/fd/%d",fd);
-
- if (slbt_readlinkat(fdat,procfspath,buf,buflen)) {
- close(fd);
- return -1;
- }
-
- if ((fdproc = openat(AT_FDCWD,buf,options|O_NOFOLLOW,0)) < 0) {
- close(fd);
- errno = ELOOP;
- return -1;
- }
-
- ret = fstat(fd,&st) || fstat(fdproc,&stproc);
-
- close(fd);
- close(fdproc);
-
- if (ret || (st.st_dev != stproc.st_dev) || (st.st_ino != stproc.st_ino)) {
- errno = ENOTSUP;
- return -1;
- }
-
- return 0;
+ return slbt_realpath(fdat,path,options,buf,buflen);
}