#include <string.h>
#include <ctype.h>
#include <unistd.h>
+#include <errno.h>
+#include <limits.h>
+#include <fcntl.h>
+
#ifndef LISP_FEATURE_WIN32
#include <pwd.h>
+#include <time.h>
#include <sys/wait.h>
+#include <sys/resource.h>
#include <netdb.h>
#endif
#include <stdio.h>
+#if defined(LISP_FEATURE_WIN32)
+#define WIN32_LEAN_AND_MEAN
+#include <errno.h>
+#endif
+
#include "runtime.h"
#include "util.h"
+#include "wrap.h"
/* Although it might seem as though this should be in some standard
Unix header, according to Perry E. Metzger, in a message on
* stuff needed by CL:DIRECTORY and other Lisp directory operations
*/
-/* Unix directory operations think of "." and ".." as filenames, but
- * Lisp directory operations do not. */
-int
-is_lispy_filename(const char *filename)
-{
- return strcmp(filename, ".") && strcmp(filename, "..");
-}
-
-/* Return a zero-terminated array of strings holding the Lispy filenames
- * (i.e. excluding the Unix magic "." and "..") in the named directory. */
-char**
-alloc_directory_lispy_filenames(const char *directory_name)
-{
- DIR *dir_ptr = opendir(directory_name);
- char **result = 0;
-
- 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);
- }
-
- 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);
- }
-
- return result;
-}
-
-/* Free a result returned by alloc_directory_lispy_filenames(). */
-void
-free_directory_lispy_filenames(char** directory_lispy_filenames)
-{
- char** p;
-
- /* Free the strings. */
- for (p = directory_lispy_filenames; *p; ++p) {
- free(*p);
- }
-
- /* Free the table of strings. */
- free(directory_lispy_filenames);
-}
\f
/*
* readlink(2) stuff
#endif
\f
/*
- * stat(2) stuff
+ * realpath(3), including a wrapper for Windows.
*/
-
-/* As of 0.6.12, the FFI can't handle 64-bit values. For now, we use
- * these munged-to-32-bits values for might-be-64-bit slots of
- * stat_wrapper as a workaround, so that at least we can still work
- * when values are small.
- *
- * FIXME: But of course we should fix the FFI so that we can use the
- * 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 */
-
-#if defined(LISP_FEATURE_LARGEFILE) && !defined(LISP_FEATURE_MIPS)
-typedef dev_t ffi_dev_t;
-typedef off_t ffi_off_t;
-#elif defined(LISP_FEATURE_MIPS)
-typedef unsigned long ffi_dev_t; /* Linux/MIPS struct stat doesn't use dev_t */
-typedef off_t ffi_off_t;
-#elif defined(LISP_FEATURE_DARWIN)
-typedef dev_t ffi_dev_t;
-typedef off_t ffi_off_t;
+char * sb_realpath (char *path)
+{
+#ifndef LISP_FEATURE_WIN32
+ char *ret;
+ int errnum;
+
+ if ((ret = calloc(PATH_MAX, sizeof(char))) == NULL)
+ return NULL;
+ if (realpath(path, ret) == NULL) {
+ errnum = errno;
+ free(ret);
+ errno = errnum;
+ return NULL;
+ }
+ return(ret);
#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 */
+ char *ret;
+ char *cp;
+ int errnum;
+
+ if ((ret = calloc(MAX_PATH, sizeof(char))) == NULL)
+ return NULL;
+ if (GetFullPathName(path, MAX_PATH, ret, &cp) == 0) {
+ errnum = errno;
+ free(ret);
+ errno = errnum;
+ return NULL;
+ }
+ return(ret);
#endif
+}
+\f
+/* readdir, closedir, and dirent name accessor. The first three are not strictly
+ * necessary, but should save us some #!+netbsd in the build, and this also allows
+ * building Windows versions using the non-ANSI variants of FindFirstFile &co
+ * under the same API. (Use a structure that appends the handle to the WIN32_FIND_DATA
+ * as the return value from sb_opendir, on sb_readdir grab the name from the previous
+ * call and save the new one.) Nikodemus thought he would have to do that to support
+ * DIRECTORY on UNC paths, but turns out opendir &co do TRT on Windows already -- so
+ * leaving that bit of tedium for a later date, once we figure out the whole *A vs. *W
+ * issue out properly. ...FIXME, obviously, as per above.
+ *
+ * Once that is done, the lisp side functions are best named OS-OPENDIR, etc.
+ */
+extern DIR *
+sb_opendir(char * name)
+{
+ return opendir(name);
+}
-#ifdef LISP_FEATURE_OS_PROVIDES_BLKSIZE_T
-typedef blksize_t ffi_blksize_t;
-#else
-typedef unsigned long ffi_blksize_t;
-#endif
+extern struct dirent *
+sb_readdir(DIR * dirp)
+{
+ return readdir(dirp);
+}
-/* a representation of stat(2) results which doesn't depend on CPU or OS */
-struct stat_wrapper {
- /* KLUDGE: The verbose wrapped_st_ prefixes are to protect us from
- * the C preprocessor as wielded by the fiends of OpenBSD, who do
- * things like
- * #define st_atime st_atimespec.tv_sec
- * I remember when I was young and innocent, I read about how the
- * C preprocessor isn't to be used to globally munge random
- * lowercase symbols like this, because things like this could
- * happen, and I nodded sagely. But now I know better.:-| This is
- * another entry for Dan Barlow's ongoing episodic rant about C
- * header files, I guess.. -- WHN 2001-05-10 */
- 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 */
- ffi_blksize_t wrapped_st_blksize; /* blocksize for filesystem I/O */
- unsigned long wrapped_st_blocks; /* number of blocks allocated */
- time_t wrapped_st_atime; /* time_t of last access */
- time_t wrapped_st_mtime; /* time_t of last modification */
- time_t wrapped_st_ctime; /* time_t of last change */
-};
+extern int
+sb_closedir(DIR * dirp)
+{
+ return closedir(dirp);
+}
+
+extern char *
+sb_dirent_name(struct dirent * ent)
+{
+ return ent->d_name;
+}
+\f
+/*
+ * stat(2) stuff
+ */
static void
copy_to_stat_wrapper(struct stat_wrapper *to, struct stat *from)
return ret;
}
\f
+/* A wrapper for mkstemp(3), for two reasons: (1) mkstemp does not
+ exist on Windows; (2) by passing down a mode_t, we don't need a
+ binding to chmod in SB-UNIX, and need not concern ourselves with
+ umask issues if we want to use mkstemp to make new files in
+ OPEN. */
+int sb_mkstemp (char *template, mode_t mode) {
+#ifdef LISP_FEATURE_WIN32
+#define PATHNAME_BUFFER_SIZE MAX_PATH
+#define MKTEMP _mktemp
+#else
+#define PATHNAME_BUFFER_SIZE PATH_MAX
+#define MKTEMP mktemp
+#endif
+ int fd;
+ char buf[PATHNAME_BUFFER_SIZE];
+
+ while (1) {
+ /* Fruit fallen from the tree: for people who like
+ microoptimizations, we might not need to copy the whole
+ template on every loop, but only the last several characters.
+ But I didn't feel like testing the boundary cases in Windows's
+ _mktemp. */
+ strncpy(buf, template, PATHNAME_BUFFER_SIZE);
+ buf[PATHNAME_BUFFER_SIZE-1]=0; /* force NULL-termination */
+ if (MKTEMP(buf)) {
+ if ((fd=open(buf, O_CREAT|O_EXCL|O_RDWR, mode))!=-1) {
+ strcpy(template, buf);
+ return (fd);
+ } else
+ if (errno != EEXIST)
+ return (-1);
+ } else
+ return (-1);
+ }
+#undef MKTEMP
+#undef PATHNAME_BUFFER_SIZE
+}
+
+\f
/*
* getpwuid() stuff
*/
}
char *
-uid_homedir(uid_t uid)
+passwd_homedir(struct passwd *p)
{
- struct passwd *p = getpwuid(uid);
- if(p) {
+ if (p) {
/* Let's be careful about this, shall we? */
size_t len = strlen(p->pw_dir);
if (p->pw_dir[len-1] == '/') {
} else {
char *result = malloc(len + 2);
if (result) {
- int nchars = sprintf(result,"%s/",p->pw_dir);
+ unsigned int nchars = sprintf(result,"%s/",p->pw_dir);
if (nchars == len + 1) {
return result;
} else {
return 0;
}
}
+
+char *
+user_homedir(char *name)
+{
+ return passwd_homedir(getpwnam(name));
+}
+
+char *
+uid_homedir(uid_t uid)
+{
+ return passwd_homedir(getpwuid(uid));
+}
#endif /* !LISP_FEATURE_WIN32 */
\f
/*
}
#ifdef LISP_FEATURE_WIN32
-#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <time.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)
+int sb_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
* 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)
+#define UNIX_EPOCH_FILETIME 116444736000000000ULL
+
+int sb_gettimeofday(long *timeval, long *timezone)
{
- timeval[0] = time(NULL);
- timeval[1] = 0;
+ FILETIME ft;
+ ULARGE_INTEGER uft;
+ GetSystemTimeAsFileTime(&ft);
+ uft.LowPart = ft.dwLowDateTime;
+ uft.HighPart = ft.dwHighDateTime;
+ uft.QuadPart -= UNIX_EPOCH_FILETIME;
+ timeval[0] = uft.QuadPart / 10000000;
+ timeval[1] = (uft.QuadPart % 10000000)/10;
return 0;
}
#endif
}
#endif /* !LISP_FEATURE_WIN32 */
+
+#ifndef LISP_FEATURE_WIN32
+int sb_getrusage(int who, struct rusage *rusage)
+{
+ return getrusage(who, rusage);
+}
+
+int sb_gettimeofday(struct timeval *tp, void *tzp)
+{
+ return gettimeofday(tp, tzp);
+}
+
+int sb_nanosleep(struct timespec *rqtp, struct timespec *rmtp)
+{
+ return nanosleep(rqtp, rmtp);
+}
+
+int sb_select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
+ struct timeval *timeout)
+{
+ return select(nfds, readfds, writefds, exceptfds, timeout);
+}
+
+int sb_getitimer(int which, struct itimerval *value)
+{
+ return getitimer(which, value);
+}
+
+int sb_setitimer(int which, struct itimerval *value, struct itimerval *ovalue)
+{
+ return setitimer(which, value, ovalue);
+}
+#endif /* !LISP_FEATURE_WIN32 */
+
projects / sbcl.git / blobdiff