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authorChristopher Faylor <me@cgf.cx>2000-07-16 04:34:05 +0000
committerChristopher Faylor <me@cgf.cx>2000-07-16 04:34:05 +0000
commit01e6597b1c1f688b7a3206fc17c22476c69e08db (patch)
tree837843d849674054106b5d0fe06d8187b806dafb /winsup/cygwin/dlfcn.cc
parentc77c4419918a00b4c6162c14001fc0c8676b2064 (diff)
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* dcrt0.cc (build_argv): Strip quotes from argv[0] since it should never be
globified.
Diffstat (limited to 'winsup/cygwin/dlfcn.cc')
-rw-r--r--winsup/cygwin/dlfcn.cc86
1 files changed, 35 insertions, 51 deletions
diff --git a/winsup/cygwin/dlfcn.cc b/winsup/cygwin/dlfcn.cc
index dc6fec3..40931f2 100644
--- a/winsup/cygwin/dlfcn.cc
+++ b/winsup/cygwin/dlfcn.cc
@@ -16,13 +16,8 @@ details. */
#include "dlfcn.h"
#include "dll_init.h"
-#ifdef _MT_SAFE
#define _dl_error _reent_winsup()->_dl_error
#define _dl_buffer _reent_winsup()->_dl_buffer
-#else
-static int _dl_error = 0;
-static char _dl_buffer[256];
-#endif
static void __stdcall
set_dl_error (const char *str)
@@ -31,11 +26,9 @@ set_dl_error (const char *str)
_dl_error = 1;
}
-//
-// this function checks for existence of a file specified by the
-// directory and name components. If successful, return a pointer
-// the full pathname (static buffer), or else return 0.
-//
+/* Check for existence of a file specified by the directory
+ and name components. If successful, return a pointer the
+ full pathname (static buffer), else return 0. */
static const char * __stdcall
check_access (const char *dir, const char *name)
{
@@ -52,11 +45,9 @@ check_access (const char *dir, const char *name)
return ret;
}
-//
-// this function looks for an executable file given the name and the
-// environment variable to use for searching (eg., PATH); returns
-// the full pathname (static buffer) if found or NULL if not.
-//
+/* Look for an executable file given the name and the environment
+ variable to use for searching (eg., PATH); returns the full
+ pathname (static buffer) if found or NULL if not. */
static const char * __stdcall
check_path_access (const char *mywinenv, const char *name)
{
@@ -64,22 +55,20 @@ check_path_access (const char *mywinenv, const char *name)
return find_exec (name, buf, mywinenv, TRUE);
}
-//
-// This function simulates the same search as LoadLibary + check
-// environment variable LD_LIBRARY_PATH. If found, return the full
-// pathname (static buffer); if illegal, return the input string
-// unchanged and let the caller deal with it; return NULL otherwise.
-//
-// Note that this should never be called with a NULL string, since
-// that is the introspective case, and the caller should not call
-// this function at all.
-//
+/* Simulate the same search as LoadLibary + check environment
+ variable LD_LIBRARY_PATH. If found, return the full pathname
+ (static buffer); if illegal, return the input string unchanged
+ and let the caller deal with it; return NULL otherwise.
+
+ Note that this should never be called with a NULL string, since
+ that is the introspective case, and the caller should not call
+ this function at all. */
static const char * __stdcall
get_full_path_of_dll (const char* str)
{
int len = (str) ? strlen (str) : 0;
- // NULL or empty string or too long to be legal win32 pathname?
+ /* NULL or empty string or too long to be legal win32 pathname? */
if (len == 0 || len >= MAX_PATH - 1)
return str;
@@ -89,29 +78,27 @@ get_full_path_of_dll (const char* str)
strcpy (name, str);
- // add extension if necessary, but leave a trailing '.', if any, alone.
- // Files with trailing '.'s are handled differently by win32 API.
+ /* Add extension if necessary, but leave a trailing '.', if any, alone.
+ Files with trailing '.'s are handled differently by win32 API. */
if (str[len - 1] != '.')
{
- // add .dll only if no extension provided. Handle various cases:
- //
- // ./shlib --> ./shlib.dll
- // ./dir/shlib.so --> ./dir/shlib.so
- // shlib --> shlib.dll
- // shlib.dll --> shlib.dll
- // shlib.so --> shlib.so
- //
+ /* Add .dll only if no extension provided. Handle various cases:
+ ./shlib --> ./shlib.dll
+ ./dir/shlib.so --> ./dir/shlib.so
+ shlib --> shlib.dll
+ shlib.dll --> shlib.dll
+ shlib.so --> shlib.so */
const char *p = strrchr (str, '.');
if (!p || isdirsep (p[1]))
strcat (name, ".dll");
}
- // deal with fully qualified filename right away. Do the actual
- // conversion to win32 filename just before returning however.
+ /* Deal with fully qualified filename right away. Do the actual
+ conversion to win32 filename just before returning however. */
if (isabspath (str))
ret = name;
- // current directory
+ /* current directory */
if (!ret)
{
if (GetCurrentDirectory (MAX_PATH, buf) == 0)
@@ -120,29 +107,28 @@ get_full_path_of_dll (const char* str)
ret = check_access (buf, name);
}
- // LD_LIBRARY_PATH
+ /* LD_LIBRARY_PATH */
if (!ret)
ret = check_path_access ("LD_LIBRARY_PATH=", name);
if (!ret)
{
- // system directory
if (GetSystemDirectory (buf, MAX_PATH) == 0)
small_printf ("WARNING: get_full_path_of_dll can't get system directory win32 %E\n");
else
ret = check_access (buf, name);
}
- // 16 bits system directory
+ /* 16 bits system directory */
if (!ret && (os_being_run == winNT))
{
- // we assume last dir was xxxxx\SYSTEM32, so we remove 32
+ /* we assume last dir was xxxxx\SYSTEM32, so we remove 32 */
len = strlen (buf);
buf[len - 2] = 0;
ret = check_access (buf, name);
}
- // windows directory
+ /* windows directory */
if (!ret)
{
if (GetWindowsDirectory (buf, MAX_PATH) == 0)
@@ -151,14 +137,12 @@ get_full_path_of_dll (const char* str)
ret = check_access (buf, name);
}
- // PATH
+ /* PATH */
if (!ret)
ret = check_path_access ("PATH=", name);
- //
- // now do a final conversion to win32 pathname. This step is necessary
- // to resolve symlinks etc so that win32 API finds the underlying file.
- //
+ /* Now do a final conversion to win32 pathname. This step is necessary
+ to resolve symlinks etc so that win32 API finds the underlying file. */
if (ret)
{
path_conv real_filename (ret, SYMLINK_FOLLOW, 1);
@@ -182,12 +166,12 @@ dlopen (const char *name, int)
if (!name)
{
- // handle for the current module
+ /* handle for the current module */
ret = (void *) GetModuleHandle (NULL);
}
else
{
- // handle for the named library
+ /* handle for the named library */
const char *fullpath = get_full_path_of_dll (name);
ret = (void *) LoadLibrary (fullpath);
}