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--- statfs.c 2014-03-25 04:10:42.000000000 -0400
+++ statfs.c 2021-02-18 18:56:33.147163000 -0500
@@ -4,9 +4,15 @@
#include <stdio.h>
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
#include <sys/mount.h>
+#ifndef BSD
#include <sys/fs_types.h>
+#endif
#include <fstab.h>
#include "siod.h"
+#ifndef BSD
#define MNT_NUMTYPES 128
/*
@@ -14,16 +20,98 @@
*/
extern char *mnt_names[];
+#endif
-LISP lstatfs(LISP path)
+#ifdef BSD
+static LISP decode_fstat_flags(uint64_t flags)
+{
+#define FLAGCODE(name) { #name, MNT_ ## name }
+ struct {
+ const char *name;
+ uint64_t flag;
+ } flagcodes[] = {
+ /* Flags listed in statfs(2). Keep sorted for consistency */
+ FLAGCODE(ACLS),
+ FLAGCODE(ASYNC),
+ FLAGCODE(DEFEXPORTED),
+ FLAGCODE(EXKERB),
+ FLAGCODE(EXPORTANON),
+ FLAGCODE(EXPORTED),
+ FLAGCODE(EXPUBLIC),
+ FLAGCODE(EXRDONLY),
+ FLAGCODE(GJOURNAL),
+ FLAGCODE(LOCAL),
+ FLAGCODE(MULTILABEL),
+ FLAGCODE(NOATIME),
+ FLAGCODE(NOCLUSTERR),
+ FLAGCODE(NOCLUSTERW),
+ FLAGCODE(NOEXEC),
+ FLAGCODE(NOSUID),
+ FLAGCODE(NOSYMFOLLOW),
+ FLAGCODE(QUOTA),
+ FLAGCODE(RDONLY),
+ FLAGCODE(ROOTFS),
+ FLAGCODE(SOFTDEP),
+ FLAGCODE(SUIDDIR),
+ FLAGCODE(SYNCHRONOUS),
+ FLAGCODE(UNION),
+ FLAGCODE(USER)
+ };
+#undef FLAGCODE
+ unsigned u;
+ LISP result = NULL, val, l;
+
+ for (u = 0; u < sizeof(flagcodes) / sizeof(flagcodes[0]); u++) {
+ if (!(flags & flagcodes[u].flag))
+ continue;
+ val = cintern(flagcodes[u].name);
+ if (result == NULL) {
+ l = result = cons(val, NULL);
+ continue;
+ }
+ CDR(l) = cons(val, NULL);
+ l = CDR(l);
+ }
+ return result;
+}
+#endif /* BSD */
+
+
+static LISP lstatfs(LISP path)
{long iflag;
struct statfs s;
+#ifdef BSD
+ LISP lfsid;
+#endif
iflag = no_interrupt(1);
- if (statfs(get_c_string(path),&s,sizeof(s)))
+ if (TYPE(path) == tc_c_file) {
+ int fd = fileno(path->storage_as.c_file.f);
+ if (fstatfs(fd, &s))
+ return(err("fstatfs", llast_c_errmsg(-1)));
+ } else if (statfs(get_c_string(path), &s
+#if !defined(BSD) && !defined(linux)
+ ,sizeof(s)
+#endif
+ ))
return(err("statfs",llast_c_errmsg(-1)));
+
no_interrupt(iflag);
- return(symalist("type",(((s.f_type >= 0) && (s.f_type < MNT_NUMTYPES) &&
+ if (s.f_fsid.val[0] != 0 || s.f_fsid.val[1] != 0) {
+ lfsid = strcons(sizeof(s.f_fsid) * 2, NULL);
+ unsigned u;
+ char *p = get_string_data(lfsid);
+ for (u = 0; u < sizeof(s.f_fsid); u++, p += 2)
+ sprintf(p, "%02x", ((u_char *)&s.f_fsid)[u]);
+ } else
+ lfsid = NULL;
+ return(symalist("type",
+#ifdef BSD
+ s.f_fstypename[0] != '\0'
+ ? rintern(s.f_fstypename)
+#else
+ ((s.f_type >= 0) && (s.f_type < MNT_NUMTYPES) &&
mnt_names[s.f_type])
? rintern(mnt_names[s.f_type])
- : flocons(s.f_type)),
+#endif
+ : flocons(s.f_type),
"bsize",flocons(s.f_bsize),
"blocks",flocons(s.f_blocks),
@@ -34,8 +122,17 @@
"mntonname",strcons(-1,s.f_mntonname),
"mntfromname",strcons(-1,s.f_mntfromname),
+#ifdef BSD
+ "syncwrites", flocons(s.f_syncwrites),
+ "asyncwrites", flocons(s.f_asyncwrites),
+ "syncreads", flocons(s.f_syncreads),
+ "asyncreads", flocons(s.f_asyncreads),
+ "namemax", flocons(s.f_namemax),
+ "flags", decode_fstat_flags(s.f_flags),
+ lfsid == NULL ? NULL : "fsid", lfsid,
+#endif
NULL));}
-static LISP decode_fstab(struct fstab *p)
+static LISP decode_fstab(const struct fstab *p)
{if (p)
return(symalist("spec",strcons(-1,p->fs_spec),
@@ -50,5 +147,5 @@
return(NIL);}
-LISP lgetfsent(void)
+static LISP lgetfsent(void)
{long iflag;
LISP result;
@@ -58,5 +155,5 @@
return(result);}
-LISP lsetfsent(void)
+static LISP lsetfsent(void)
{long iflag;
LISP result;
@@ -66,5 +163,5 @@
return(result);}
-LISP lendfsent(void)
+static LISP lendfsent(void)
{long iflag;
iflag = no_interrupt(1);
@@ -73,4 +170,6 @@
return(NIL);}
+void init_statfs(void); /* The sole symbol exported from a SIOD-module */
+
void init_statfs(void)
{init_subr_1("statfs",lstatfs);
|
