* files for more information.
*/
+#include "sbcl.h"
+
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#ifndef LISP_FEATURE_WIN32
#include <pwd.h>
+#endif
+#include <stdio.h>
#include "runtime.h"
-#include "sbcl.h"
#include "util.h"
-/* KLUDGE: Neither the OpenBSD nor the Linux man page give a header
- * file to find this in (?). -- WHN 2002-02-07 */
+/* Although it might seem as though this should be in some standard
+ Unix header, according to Perry E. Metzger, in a message on
+ sbcl-devel dated 2004-03-29, this is the POSIXly-correct way of
+ using environ: by an explicit declaration. -- CSR, 2004-03-30 */
extern char **environ;
-\f
+\f
/*
* stuff needed by CL:DIRECTORY and other Lisp directory operations
*/
if (dir_ptr) { /* if opendir success */
- struct voidacc va;
-
- if (0 == voidacc_ctor(&va)) { /* if voidacc_ctor success */
- struct dirent *dirent_ptr;
-
- while ( (dirent_ptr = readdir(dir_ptr)) ) { /* until end of data */
- char* original_name = dirent_ptr->d_name;
- if (is_lispy_filename(original_name)) {
- /* strdup(3) is in Linux and *BSD. If you port
- * somewhere else that doesn't have it, it's easy
- * to reimplement. */
- char* dup_name = strdup(original_name);
- if (!dup_name) { /* if strdup failure */
- goto dtors;
- }
- if (voidacc_acc(&va, dup_name)) { /* if acc failure */
- goto dtors;
- }
- }
- }
- result = (char**)voidacc_give_away_result(&va);
- }
+ struct voidacc va;
+
+ if (0 == voidacc_ctor(&va)) { /* if voidacc_ctor success */
+ struct dirent *dirent_ptr;
+
+ while ( (dirent_ptr = readdir(dir_ptr)) ) { /* until end of data */
+ char* original_name = dirent_ptr->d_name;
+ if (is_lispy_filename(original_name)) {
+ /* strdup(3) is in Linux and *BSD. If you port
+ * somewhere else that doesn't have it, it's easy
+ * to reimplement. */
+ char* dup_name = strdup(original_name);
+ if (!dup_name) { /* if strdup failure */
+ goto dtors;
+ }
+ if (voidacc_acc(&va, dup_name)) { /* if acc failure */
+ goto dtors;
+ }
+ }
+ }
+ result = (char**)voidacc_give_away_result(&va);
+ }
dtors:
- voidacc_dtor(&va);
- /* ignoring closedir(3) return code, since what could we do?
- *
- * "Never ask questions you don't want to know the answer to."
- * -- William Irving Zumwalt (Rich Cook, _The Wizardry Quested_) */
- closedir(dir_ptr);
+ voidacc_dtor(&va);
+ /* ignoring closedir(3) return code, since what could we do?
+ *
+ * "Never ask questions you don't want to know the answer to."
+ * -- William Irving Zumwalt (Rich Cook, _The Wizardry Quested_) */
+ closedir(dir_ptr);
}
return result;
/* Free the strings. */
for (p = directory_lispy_filenames; *p; ++p) {
- free(*p);
+ free(*p);
}
/* Free the table of strings. */
* readlink(2) stuff
*/
+#ifndef LISP_FEATURE_WIN32
/* a wrapped version of readlink(2):
* -- If path isn't a symlink, or is a broken symlink, return 0.
* -- If path is a symlink, return a newly allocated string holding
{
int bufsiz = strlen(path) + 16;
while (1) {
- char *result = malloc(bufsiz);
- int n_read = readlink(path, result, n_read);
- if (n_read < 0) {
- free(result);
- return 0;
- } else if (n_read < bufsiz) {
- result[n_read] = 0;
- return result;
- } else {
- free(result);
- bufsiz *= 2;
- }
+ char *result = malloc(bufsiz);
+ int n_read = readlink(path, result, bufsiz);
+ if (n_read < 0) {
+ free(result);
+ return 0;
+ } else if (n_read < bufsiz) {
+ result[n_read] = 0;
+ return result;
+ } else {
+ free(result);
+ bufsiz *= 2;
+ }
}
}
+#endif
\f
/*
* stat(2) stuff
* when values are small.
*
* FIXME: But of course we should fix the FFI so that we can use the
- * actual 64-bit values instead. */
-typedef long ffi_dev_t; /* since Linux dev_t can be 64 bits */
+ * actual 64-bit values instead. In fact, we probably have by now
+ * (2003-10-03) on all working platforms except MIPS and HPPA; if some
+ * motivated spark would simply fix those, this hack could go away.
+ * -- CSR, 2003-10-03
+ *
+ * Some motivated spark fixed MIPS. -- ths, 2005-10-06 */
+
+#ifdef LISP_FEATURE_MIPS
+typedef unsigned long ffi_dev_t; /* Linux/MIPS struct stat doesn't use dev_t */
+typedef off_t ffi_off_t;
+#else
+typedef u32 ffi_dev_t; /* since Linux dev_t can be 64 bits */
typedef u32 ffi_off_t; /* since OpenBSD 2.8 st_size is 64 bits */
+#endif
/* a representation of stat(2) results which doesn't depend on CPU or OS */
struct stat_wrapper {
ffi_dev_t wrapped_st_dev; /* device */
ino_t wrapped_st_ino; /* inode */
mode_t wrapped_st_mode; /* protection */
+#ifndef LISP_FEATURE_WIN32
nlink_t wrapped_st_nlink; /* number of hard links */
uid_t wrapped_st_uid; /* user ID of owner */
gid_t wrapped_st_gid; /* group ID of owner */
+#else
+ short wrapped_st_nlink; /* Win32 doesn't have nlink_t */
+ short wrapped_st_uid; /* Win32 doesn't have st_uid */
+ short wrapped_st_gid; /* Win32 doesn't have st_gid */
+#endif
ffi_dev_t wrapped_st_rdev; /* device type (if inode device) */
ffi_off_t wrapped_st_size; /* total size, in bytes */
unsigned long wrapped_st_blksize; /* blocksize for filesystem I/O */
time_t wrapped_st_ctime; /* time_t of last change */
};
-static void
+static void
copy_to_stat_wrapper(struct stat_wrapper *to, struct stat *from)
{
#define FROB(stem) to->wrapped_st_##stem = from->st_##stem
+#ifndef LISP_FEATURE_WIN32
+#define FROB2(stem) to->wrapped_st_##stem = from->st_##stem
+#else
+#define FROB2(stem) to->wrapped_st_##stem = 0;
+#endif
FROB(dev);
- FROB(ino);
+ FROB2(ino);
FROB(mode);
FROB(nlink);
- FROB(uid);
- FROB(gid);
+ FROB2(uid);
+ FROB2(gid);
FROB(rdev);
FROB(size);
- FROB(blksize);
- FROB(blocks);
+ FROB2(blksize);
+ FROB2(blocks);
FROB(atime);
FROB(mtime);
FROB(ctime);
{
struct stat real_buf;
int ret;
+
+#ifdef LISP_FEATURE_WIN32
+ /*
+ * Windows won't match the last component of a pathname if there is
+ * a trailing #\/ character. So we do silly things like this:
+ */
+ char file_buf[MAX_PATH];
+ strcpy(file_buf, file_name);
+ int foo = strlen(file_name);
+ if (foo && (file_name[foo-1] == '/')) file_buf[foo-1] = 0;
+ file_name = file_buf;
+#endif
+
if ((ret = stat(file_name,&real_buf)) >= 0)
- copy_to_stat_wrapper(buf, &real_buf);
+ copy_to_stat_wrapper(buf, &real_buf);
return ret;
}
+#ifndef LISP_FEATURE_WIN32
int
lstat_wrapper(const char *file_name, struct stat_wrapper *buf)
{
struct stat real_buf;
int ret;
- if ((ret = lstat(file_name,&real_buf)) >= 0)
- copy_to_stat_wrapper(buf, &real_buf);
+ if ((ret = lstat(file_name,&real_buf)) >= 0)
+ copy_to_stat_wrapper(buf, &real_buf);
return ret;
}
+#else
+/* cleaner to do it here than in Lisp */
+int lstat_wrapper(const char *file_name, struct stat_wrapper *buf)
+{
+ return stat_wrapper(file_name, buf);
+}
+#endif
int
fstat_wrapper(int filedes, struct stat_wrapper *buf)
struct stat real_buf;
int ret;
if ((ret = fstat(filedes,&real_buf)) >= 0)
- copy_to_stat_wrapper(buf, &real_buf);
+ copy_to_stat_wrapper(buf, &real_buf);
return ret;
}
\f
* getpwuid() stuff
*/
+#ifndef LISP_FEATURE_WIN32
/* Return a newly-allocated string holding the username for "uid", or
* NULL if there's no such user.
*
{
struct passwd *p = getpwuid(uid);
if (p) {
- /* The object *p is a static struct which'll be overwritten by
- * the next call to getpwuid(), so it'd be unsafe to return
- * p->pw_name without copying. */
- return strdup(p->pw_name);
+ /* The object *p is a static struct which'll be overwritten by
+ * the next call to getpwuid(), so it'd be unsafe to return
+ * p->pw_name without copying. */
+ return strdup(p->pw_name);
} else {
- return 0;
+ return 0;
}
}
+
+char *
+uid_homedir(uid_t uid)
+{
+ struct passwd *p = getpwuid(uid);
+ if(p) {
+ /* Let's be careful about this, shall we? */
+ size_t len = strlen(p->pw_dir);
+ if (p->pw_dir[len-1] == '/') {
+ return strdup(p->pw_dir);
+ } else {
+ char *result = malloc(len + 2);
+ if (result) {
+ int nchars = sprintf(result,"%s/",p->pw_dir);
+ if (nchars == len + 1) {
+ return result;
+ } else {
+ return 0;
+ }
+ } else {
+ return 0;
+ }
+ }
+ } else {
+ return 0;
+ }
+}
+#endif /* !LISP_FEATURE_WIN32 */
\f
/*
* functions to get miscellaneous C-level variables
{
return environ;
}
+
+#ifdef LISP_FEATURE_WIN32
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+/*
+ * faked-up implementation of select(). Right now just enough to get through
+ * second genesis.
+ */
+int select(int top_fd, DWORD *read_set, DWORD *write_set, DWORD *except_set, time_t *timeout)
+{
+ /*
+ * FIXME: Going forward, we may want to use MsgWaitForMultipleObjects
+ * in order to support a windows message loop inside serve-event.
+ */
+ HANDLE handles[MAXIMUM_WAIT_OBJECTS];
+ int fds[MAXIMUM_WAIT_OBJECTS];
+ int num_handles;
+ int i;
+ DWORD retval;
+ int polling_write;
+ DWORD win_timeout;
+
+ num_handles = 0;
+ polling_write = 0;
+ for (i = 0; i < top_fd; i++) {
+ if (except_set) except_set[i >> 5] = 0;
+ if (write_set && (write_set[i >> 5] & (1 << (i & 31)))) polling_write = 1;
+ if (read_set[i >> 5] & (1 << (i & 31))) {
+ read_set[i >> 5] &= ~(1 << (i & 31));
+ fds[num_handles] = i;
+ handles[num_handles++] = _get_osfhandle(i);
+ }
+ }
+
+ win_timeout = INFINITE;
+ if (timeout) win_timeout = (timeout[0] * 1000) + timeout[1];
+
+ /* Last parameter here is timeout in milliseconds. */
+ /* retval = WaitForMultipleObjects(num_handles, handles, 0, INFINITE); */
+ retval = WaitForMultipleObjects(num_handles, handles, 0, win_timeout);
+
+ if (retval < WAIT_ABANDONED) {
+ /* retval, at this point, is the index of the single live HANDLE/fd. */
+ read_set[fds[retval] >> 5] |= (1 << (fds[retval] & 31));
+ return 1;
+ }
+ return polling_write;
+}
+
+/*
+ * SBCL doesn't like backslashes in pathnames from getcwd for some reason.
+ * Probably because they don't happen in posix systems. Windows doesn't
+ * mind slashes, so we convert from one to the other. We also strip off
+ * the drive prefix while we're at it ("C:", or whatever).
+ *
+ * The real fix for this problem is to create a windows-host setup that
+ * parallels the unix-host in src/code/target-pathname.lisp and actually
+ * parse this junk properly, drive letter and everything.
+ *
+ * Also see POSIX-GETCWD in src/code/unix.lisp.
+ */
+char *wrap_getcwd(char *buf, size_t len)
+{
+ char *retval = _getcwd(buf, len);
+
+ if (retval[1] == ':') {
+ char *p;
+ for (p = retval; (*p = p[2]); p++)
+ if (*p == '\\') *p = '/';
+ }
+
+ return retval;
+}
+
+/*
+ * Windows doesn't have gettimeofday(), and we need it for the compiler,
+ * for serve-event, and for a couple other things. We don't need a timezone
+ * yet, however, and the closest we can easily get to a timeval is the
+ * seconds part. So that's what we do.
+ */
+int gettimeofday(long *timeval, long *timezone)
+{
+ timeval[0] = time(NULL);
+ timeval[1] = 0;
+
+ return 0;
+}
+#endif
projects / sbcl.git / blobdiff