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-rw-r--r--lib/libc/gen/Makefile.inc10
-rw-r--r--lib/libc/gen/Symbol.map14
-rw-r--r--lib/libc/gen/check_utility_compat.c12
-rw-r--r--lib/libc/gen/fmtmsg.c2
-rw-r--r--lib/libc/gen/fstab.c12
-rw-r--r--lib/libc/gen/getbsize.338
-rw-r--r--lib/libc/gen/getcap.c4
-rw-r--r--lib/libc/gen/getgrent.c8
-rw-r--r--lib/libc/gen/getnetgrent.c4
-rw-r--r--lib/libc/gen/getttyent.c2
-rw-r--r--lib/libc/gen/getusershell.c2
-rw-r--r--lib/libc/gen/getutxent.c2
-rw-r--r--lib/libc/gen/glob.c113
-rw-r--r--lib/libc/gen/isnan.c7
-rw-r--r--lib/libc/gen/sysctlbyname.c9
-rw-r--r--lib/libc/gen/unvis-compat.c46
-rw-r--r--lib/libc/gen/unvis.3200
-rw-r--r--lib/libc/gen/unvis.c293
-rw-r--r--lib/libc/gen/vis.3308
-rw-r--r--lib/libc/gen/vis.c201
-rw-r--r--lib/libc/gen/waitid.c65
21 files changed, 267 insertions, 1085 deletions
diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc
index 2481f28..0bbbb33 100644
--- a/lib/libc/gen/Makefile.inc
+++ b/lib/libc/gen/Makefile.inc
@@ -32,13 +32,17 @@ SRCS+= __getosreldate.c __xuname.c \
sigsetops.c sleep.c srand48.c statvfs.c stringlist.c strtofflags.c \
sysconf.c sysctl.c sysctlbyname.c sysctlnametomib.c \
syslog.c telldir.c termios.c time.c times.c timezone.c tls.c \
- ttyname.c ttyslot.c ualarm.c ulimit.c uname.c unvis.c \
- usleep.c utime.c utxdb.c valloc.c vis.c wait.c wait3.c waitpid.c \
- wordexp.c
+ ttyname.c ttyslot.c ualarm.c ulimit.c uname.c unvis-compat.c \
+ usleep.c utime.c utxdb.c valloc.c wait.c wait3.c waitpid.c \
+ waitid.c wordexp.c
.PATH: ${.CURDIR}/../../contrib/libc-pwcache
SRCS+= pwcache.c pwcache.h
+.PATH: ${.CURDIR}/../../contrib/libc-vis
+CFLAGS+= -I${.CURDIR}/../../contrib/libc-vis
+SRCS+= unvis.c vis.c
+
MISRCS+=modf.c
CANCELPOINTS_SRCS=sem.c sem_new.c
diff --git a/lib/libc/gen/Symbol.map b/lib/libc/gen/Symbol.map
index b4f88ae..4cbf07c 100644
--- a/lib/libc/gen/Symbol.map
+++ b/lib/libc/gen/Symbol.map
@@ -298,7 +298,6 @@ FBSD_1.0 {
ualarm;
ulimit;
uname;
- unvis;
strunvis;
strunvisx;
usleep;
@@ -388,9 +387,22 @@ FBSD_1.3 {
__FreeBSD_libc_enter_restricted_mode;
getcontextx;
gid_from_group;
+ nvis;
pwcache_userdb;
pwcache_groupdb;
+ snvis;
+ strnunvis;
+ strnunvisx;
+ strnvis;
+ strnvisx;
+ strsnvis;
+ strsnvisx;
+ strsvis;
+ strsvisx;
+ svis;
uid_from_user;
+ unvis;
+ waitid;
};
FBSDprivate_1.0 {
diff --git a/lib/libc/gen/check_utility_compat.c b/lib/libc/gen/check_utility_compat.c
index 0ccdec1..04c594b 100644
--- a/lib/libc/gen/check_utility_compat.c
+++ b/lib/libc/gen/check_utility_compat.c
@@ -35,32 +35,28 @@ __FBSDID("$FreeBSD$");
* are threaded, so I'm not concerned about cancellation points or other
* niceties.
*/
+#include <sys/limits.h>
+
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
-#ifndef LINE_MAX
-#define LINE_MAX _POSIX2_LINE_MAX
-#endif
-
#define _PATH_UTIL_COMPAT "/etc/compat-FreeBSD-4-util"
#define _ENV_UTIL_COMPAT "_COMPAT_FreeBSD_4"
int
check_utility_compat(const char *utility)
{
- char buf[LINE_MAX];
+ char buf[PATH_MAX];
char *p, *bp;
int len;
if ((p = getenv(_ENV_UTIL_COMPAT)) != NULL) {
strlcpy(buf, p, sizeof buf);
} else {
- if ((len = readlink(_PATH_UTIL_COMPAT, buf, sizeof buf)) < 0)
+ if ((len = readlink(_PATH_UTIL_COMPAT, buf, sizeof(buf) - 1)) < 0)
return 0;
- if (len > sizeof buf)
- len = sizeof buf;
buf[len] = '\0';
}
if (buf[0] == '\0')
diff --git a/lib/libc/gen/fmtmsg.c b/lib/libc/gen/fmtmsg.c
index c6ecbd5..d2c67a6 100644
--- a/lib/libc/gen/fmtmsg.c
+++ b/lib/libc/gen/fmtmsg.c
@@ -83,7 +83,7 @@ def:
if (output == NULL)
return (MM_NOCON);
if (*output != '\0') {
- if ((fp = fopen("/dev/console", "a")) == NULL) {
+ if ((fp = fopen("/dev/console", "ae")) == NULL) {
free(output);
return (MM_NOCON);
}
diff --git a/lib/libc/gen/fstab.c b/lib/libc/gen/fstab.c
index b68db2e..6a77abd 100644
--- a/lib/libc/gen/fstab.c
+++ b/lib/libc/gen/fstab.c
@@ -39,7 +39,6 @@ __FBSDID("$FreeBSD$");
#include <sys/stat.h>
#include <errno.h>
-#include <fcntl.h>
#include <fstab.h>
#include <paths.h>
#include <stdio.h>
@@ -255,8 +254,6 @@ getfsfile(const char *name)
int
setfsent(void)
{
- int fd;
-
if (_fs_fp) {
rewind(_fs_fp);
LineNo = 0;
@@ -268,18 +265,11 @@ setfsent(void)
else
setfstab(getenv("PATH_FSTAB"));
}
- fd = _open(path_fstab, O_RDONLY | O_CLOEXEC);
- if (fd == -1) {
- error(errno);
- return (0);
- }
- _fs_fp = fdopen(fd, "r");
- if (_fs_fp != NULL) {
+ if ((_fs_fp = fopen(path_fstab, "re")) != NULL) {
LineNo = 0;
return (1);
}
error(errno);
- _close(fd);
return (0);
}
diff --git a/lib/libc/gen/getbsize.3 b/lib/libc/gen/getbsize.3
index 1407051..2caf5fe 100644
--- a/lib/libc/gen/getbsize.3
+++ b/lib/libc/gen/getbsize.3
@@ -28,12 +28,12 @@
.\" @(#)getbsize.3 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
-.Dd June 4, 1993
+.Dd November 16, 2012
.Dt GETBSIZE 3
.Os
.Sh NAME
.Nm getbsize
-.Nd get user block size
+.Nd get preferred block size
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
@@ -43,11 +43,31 @@
.Sh DESCRIPTION
The
.Fn getbsize
-function determines the user's preferred block size based on the value of the
-.Dq BLOCKSIZE
-environment variable; see
-.Xr environ 7
-for details on its use and format.
+function returns a preferred block size for reporting by system utilities
+.Xr df 1 ,
+.Xr du 1 ,
+.Xr ls 1
+and
+.Xr systat 1 ,
+based on the value of the
+.Ev BLOCKSIZE
+environment variable.
+.Ev BLOCKSIZE
+may be specified directly in bytes, or in multiples of a kilobyte by
+specifying a number followed by ``K'' or ``k'', in multiples of a
+megabyte by specifying a number followed by ``M'' or ``m'' or in
+multiples of a gigabyte by specifying a number followed by ``G'' or
+``g''.
+Multiples must be integers.
+.Pp
+Valid values of
+.Ev BLOCKSIZE
+are 512 bytes to 1 gigabyte.
+Sizes less than 512 bytes are rounded up to 512 bytes, and sizes
+greater than 1 GB are rounded down to 1 GB.
+In each case
+.Fn getbsize
+produces a warning message.
.Pp
The
.Fn getbsize
@@ -61,10 +81,6 @@ terminating null).
The memory referenced by
.Fa blocksizep
is filled in with block size, in bytes.
-.Pp
-If the user's block size is unreasonable, a warning message is
-written to standard error and the returned information reflects
-a block size of 512 bytes.
.Sh SEE ALSO
.Xr df 1 ,
.Xr du 1 ,
diff --git a/lib/libc/gen/getcap.c b/lib/libc/gen/getcap.c
index c321d12..f2f3777 100644
--- a/lib/libc/gen/getcap.c
+++ b/lib/libc/gen/getcap.c
@@ -654,7 +654,7 @@ cgetnext(char **bp, char **db_array)
if (dbp == NULL)
dbp = db_array;
- if (pfp == NULL && (pfp = fopen(*dbp, "r")) == NULL) {
+ if (pfp == NULL && (pfp = fopen(*dbp, "re")) == NULL) {
(void)cgetclose();
return (-1);
}
@@ -679,7 +679,7 @@ cgetnext(char **bp, char **db_array)
(void)cgetclose();
return (0);
} else if ((pfp =
- fopen(*dbp, "r")) == NULL) {
+ fopen(*dbp, "re")) == NULL) {
(void)cgetclose();
return (-1);
} else
diff --git a/lib/libc/gen/getgrent.c b/lib/libc/gen/getgrent.c
index 18f64a8..f9480c3 100644
--- a/lib/libc/gen/getgrent.c
+++ b/lib/libc/gen/getgrent.c
@@ -810,7 +810,7 @@ files_setgrent(void *retval, void *mdata, va_list ap)
if (st->fp != NULL)
rewind(st->fp);
else if (stayopen)
- st->fp = fopen(_PATH_GROUP, "r");
+ st->fp = fopen(_PATH_GROUP, "re");
break;
case ENDGRENT:
if (st->fp != NULL) {
@@ -861,7 +861,7 @@ files_group(void *retval, void *mdata, va_list ap)
if (*errnop != 0)
return (NS_UNAVAIL);
if (st->fp == NULL &&
- ((st->fp = fopen(_PATH_GROUP, "r")) == NULL)) {
+ ((st->fp = fopen(_PATH_GROUP, "re")) == NULL)) {
*errnop = errno;
return (NS_UNAVAIL);
}
@@ -1251,7 +1251,7 @@ compat_setgrent(void *retval, void *mdata, va_list ap)
if (st->fp != NULL)
rewind(st->fp);
else if (stayopen)
- st->fp = fopen(_PATH_GROUP, "r");
+ st->fp = fopen(_PATH_GROUP, "re");
set_setent(dtab, mdata);
(void)_nsdispatch(NULL, dtab, NSDB_GROUP_COMPAT, "setgrent",
compatsrc, 0);
@@ -1335,7 +1335,7 @@ compat_group(void *retval, void *mdata, va_list ap)
if (*errnop != 0)
return (NS_UNAVAIL);
if (st->fp == NULL &&
- ((st->fp = fopen(_PATH_GROUP, "r")) == NULL)) {
+ ((st->fp = fopen(_PATH_GROUP, "re")) == NULL)) {
*errnop = errno;
rv = NS_UNAVAIL;
goto fin;
diff --git a/lib/libc/gen/getnetgrent.c b/lib/libc/gen/getnetgrent.c
index 51b3e37..4c56461 100644
--- a/lib/libc/gen/getnetgrent.c
+++ b/lib/libc/gen/getnetgrent.c
@@ -173,7 +173,7 @@ setnetgrent(const char *group)
if (((stat(_PATH_NETGROUP, &_yp_statp) < 0) &&
errno == ENOENT) || _yp_statp.st_size == 0)
_use_only_yp = _netgr_yp_enabled = 1;
- if ((netf = fopen(_PATH_NETGROUP,"r")) != NULL ||_use_only_yp){
+ if ((netf = fopen(_PATH_NETGROUP,"re")) != NULL ||_use_only_yp){
/*
* Icky: grab the first character of the netgroup file
* and turn on NIS if it's a '+'. rewind the stream
@@ -197,7 +197,7 @@ setnetgrent(const char *group)
return;
}
#else
- if ((netf = fopen(_PATH_NETGROUP, "r"))) {
+ if ((netf = fopen(_PATH_NETGROUP, "re"))) {
#endif
if (parse_netgrp(group))
endnetgrent();
diff --git a/lib/libc/gen/getttyent.c b/lib/libc/gen/getttyent.c
index f2fc298..b82c30a 100644
--- a/lib/libc/gen/getttyent.c
+++ b/lib/libc/gen/getttyent.c
@@ -211,7 +211,7 @@ setttyent(void)
if (tf) {
rewind(tf);
return (1);
- } else if ( (tf = fopen(_PATH_TTYS, "r")) )
+ } else if ( (tf = fopen(_PATH_TTYS, "re")) )
return (1);
return (0);
}
diff --git a/lib/libc/gen/getusershell.c b/lib/libc/gen/getusershell.c
index ce50069..53536e1 100644
--- a/lib/libc/gen/getusershell.c
+++ b/lib/libc/gen/getusershell.c
@@ -115,7 +115,7 @@ _local_initshells(rv, cb_data, ap)
sl_free(sl, 1);
sl = sl_init();
- if ((fp = fopen(_PATH_SHELLS, "r")) == NULL)
+ if ((fp = fopen(_PATH_SHELLS, "re")) == NULL)
return NS_UNAVAIL;
cp = line;
diff --git a/lib/libc/gen/getutxent.c b/lib/libc/gen/getutxent.c
index a2e938a..20e8859 100644
--- a/lib/libc/gen/getutxent.c
+++ b/lib/libc/gen/getutxent.c
@@ -71,7 +71,7 @@ setutxdb(int db, const char *file)
if (uf != NULL)
fclose(uf);
- uf = fopen(file, "r");
+ uf = fopen(file, "re");
if (uf == NULL)
return (-1);
diff --git a/lib/libc/gen/glob.c b/lib/libc/gen/glob.c
index 211b535..832dc8d 100644
--- a/lib/libc/gen/glob.c
+++ b/lib/libc/gen/glob.c
@@ -94,6 +94,25 @@ __FBSDID("$FreeBSD$");
#include "collate.h"
+/*
+ * glob(3) expansion limits. Stop the expansion if any of these limits
+ * is reached. This caps the runtime in the face of DoS attacks. See
+ * also CVE-2010-2632
+ */
+#define GLOB_LIMIT_BRACE 128 /* number of brace calls */
+#define GLOB_LIMIT_PATH 65536 /* number of path elements */
+#define GLOB_LIMIT_READDIR 16384 /* number of readdirs */
+#define GLOB_LIMIT_STAT 1024 /* number of stat system calls */
+#define GLOB_LIMIT_STRING ARG_MAX /* maximum total size for paths */
+
+struct glob_limit {
+ size_t l_brace_cnt;
+ size_t l_path_lim;
+ size_t l_readdir_cnt;
+ size_t l_stat_cnt;
+ size_t l_string_cnt;
+};
+
#define DOLLAR '$'
#define DOT '.'
#define EOS '\0'
@@ -153,15 +172,18 @@ static const Char *g_strchr(const Char *, wchar_t);
static Char *g_strcat(Char *, const Char *);
#endif
static int g_stat(Char *, struct stat *, glob_t *);
-static int glob0(const Char *, glob_t *, size_t *);
-static int glob1(Char *, glob_t *, size_t *);
-static int glob2(Char *, Char *, Char *, Char *, glob_t *, size_t *);
-static int glob3(Char *, Char *, Char *, Char *, Char *, glob_t *, size_t *);
-static int globextend(const Char *, glob_t *, size_t *);
-static const Char *
+static int glob0(const Char *, glob_t *, struct glob_limit *);
+static int glob1(Char *, glob_t *, struct glob_limit *);
+static int glob2(Char *, Char *, Char *, Char *, glob_t *,
+ struct glob_limit *);
+static int glob3(Char *, Char *, Char *, Char *, Char *, glob_t *,
+ struct glob_limit *);
+static int globextend(const Char *, glob_t *, struct glob_limit *);
+static const Char *
globtilde(const Char *, Char *, size_t, glob_t *);
-static int globexp1(const Char *, glob_t *, size_t *);
-static int globexp2(const Char *, const Char *, glob_t *, int *, size_t *);
+static int globexp1(const Char *, glob_t *, struct glob_limit *);
+static int globexp2(const Char *, const Char *, glob_t *, int *,
+ struct glob_limit *);
static int match(Char *, Char *, Char *);
#ifdef DEBUG
static void qprintf(const char *, Char *);
@@ -171,8 +193,8 @@ int
glob(const char * __restrict pattern, int flags,
int (*errfunc)(const char *, int), glob_t * __restrict pglob)
{
+ struct glob_limit limit = { 0, 0, 0, 0, 0 };
const char *patnext;
- size_t limit;
Char *bufnext, *bufend, patbuf[MAXPATHLEN], prot;
mbstate_t mbs;
wchar_t wc;
@@ -186,11 +208,10 @@ glob(const char * __restrict pattern, int flags,
pglob->gl_offs = 0;
}
if (flags & GLOB_LIMIT) {
- limit = pglob->gl_matchc;
- if (limit == 0)
- limit = ARG_MAX;
- } else
- limit = 0;
+ limit.l_path_lim = pglob->gl_matchc;
+ if (limit.l_path_lim == 0)
+ limit.l_path_lim = GLOB_LIMIT_PATH;
+ }
pglob->gl_flags = flags & ~GLOB_MAGCHAR;
pglob->gl_errfunc = errfunc;
pglob->gl_matchc = 0;
@@ -243,11 +264,17 @@ glob(const char * __restrict pattern, int flags,
* characters
*/
static int
-globexp1(const Char *pattern, glob_t *pglob, size_t *limit)
+globexp1(const Char *pattern, glob_t *pglob, struct glob_limit *limit)
{
const Char* ptr = pattern;
int rv;
+ if ((pglob->gl_flags & GLOB_LIMIT) &&
+ limit->l_brace_cnt++ >= GLOB_LIMIT_BRACE) {
+ errno = 0;
+ return (GLOB_NOSPACE);
+ }
+
/* Protect a single {}, for find(1), like csh */
if (pattern[0] == LBRACE && pattern[1] == RBRACE && pattern[2] == EOS)
return glob0(pattern, pglob, limit);
@@ -266,7 +293,8 @@ globexp1(const Char *pattern, glob_t *pglob, size_t *limit)
* If it fails then it tries to glob the rest of the pattern and returns.
*/
static int
-globexp2(const Char *ptr, const Char *pattern, glob_t *pglob, int *rv, size_t *limit)
+globexp2(const Char *ptr, const Char *pattern, glob_t *pglob, int *rv,
+ struct glob_limit *limit)
{
int i;
Char *lm, *ls;
@@ -436,7 +464,7 @@ globtilde(const Char *pattern, Char *patbuf, size_t patbuf_len, glob_t *pglob)
* if things went well, nonzero if errors occurred.
*/
static int
-glob0(const Char *pattern, glob_t *pglob, size_t *limit)
+glob0(const Char *pattern, glob_t *pglob, struct glob_limit *limit)
{
const Char *qpatnext;
int err;
@@ -529,7 +557,7 @@ compare(const void *p, const void *q)
}
static int
-glob1(Char *pattern, glob_t *pglob, size_t *limit)
+glob1(Char *pattern, glob_t *pglob, struct glob_limit *limit)
{
Char pathbuf[MAXPATHLEN];
@@ -547,7 +575,7 @@ glob1(Char *pattern, glob_t *pglob, size_t *limit)
*/
static int
glob2(Char *pathbuf, Char *pathend, Char *pathend_last, Char *pattern,
- glob_t *pglob, size_t *limit)
+ glob_t *pglob, struct glob_limit *limit)
{
struct stat sb;
Char *p, *q;
@@ -563,6 +591,15 @@ glob2(Char *pathbuf, Char *pathend, Char *pathend_last, Char *pattern,
if (g_lstat(pathbuf, &sb, pglob))
return (0);
+ if ((pglob->gl_flags & GLOB_LIMIT) &&
+ limit->l_stat_cnt++ >= GLOB_LIMIT_STAT) {
+ errno = 0;
+ if (pathend + 1 > pathend_last)
+ return (GLOB_ABORTED);
+ *pathend++ = SEP;
+ *pathend = EOS;
+ return (GLOB_NOSPACE);
+ }
if (((pglob->gl_flags & GLOB_MARK) &&
pathend[-1] != SEP) && (S_ISDIR(sb.st_mode)
|| (S_ISLNK(sb.st_mode) &&
@@ -606,7 +643,7 @@ glob2(Char *pathbuf, Char *pathend, Char *pathend_last, Char *pattern,
static int
glob3(Char *pathbuf, Char *pathend, Char *pathend_last,
Char *pattern, Char *restpattern,
- glob_t *pglob, size_t *limit)
+ glob_t *pglob, struct glob_limit *limit)
{
struct dirent *dp;
DIR *dirp;
@@ -652,6 +689,19 @@ glob3(Char *pathbuf, Char *pathend, Char *pathend_last,
size_t clen;
mbstate_t mbs;
+ if ((pglob->gl_flags & GLOB_LIMIT) &&
+ limit->l_readdir_cnt++ >= GLOB_LIMIT_READDIR) {
+ errno = 0;
+ if (pathend + 1 > pathend_last)
+ err = GLOB_ABORTED;
+ else {
+ *pathend++ = SEP;
+ *pathend = EOS;
+ err = GLOB_NOSPACE;
+ }
+ break;
+ }
+
/* Initial DOT must be matched literally. */
if (dp->d_name[0] == DOT && *pattern != DOT)
continue;
@@ -702,29 +752,24 @@ glob3(Char *pathbuf, Char *pathend, Char *pathend_last,
* gl_pathv points to (gl_offs + gl_pathc + 1) items.
*/
static int
-globextend(const Char *path, glob_t *pglob, size_t *limit)
+globextend(const Char *path, glob_t *pglob, struct glob_limit *limit)
{
char **pathv;
size_t i, newsize, len;
char *copy;
const Char *p;
- if (*limit && pglob->gl_pathc > *limit) {
+ if ((pglob->gl_flags & GLOB_LIMIT) &&
+ pglob->gl_matchc > limit->l_path_lim) {
errno = 0;
return (GLOB_NOSPACE);
}
newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs);
- pathv = pglob->gl_pathv ?
- realloc((char *)pglob->gl_pathv, newsize) :
- malloc(newsize);
- if (pathv == NULL) {
- if (pglob->gl_pathv) {
- free(pglob->gl_pathv);
- pglob->gl_pathv = NULL;
- }
+ /* realloc(NULL, newsize) is equivalent to malloc(newsize). */
+ pathv = realloc((void *)pglob->gl_pathv, newsize);
+ if (pathv == NULL)
return (GLOB_NOSPACE);
- }
if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) {
/* first time around -- clear initial gl_offs items */
@@ -737,6 +782,12 @@ globextend(const Char *path, glob_t *pglob, size_t *limit)
for (p = path; *p++;)
continue;
len = MB_CUR_MAX * (size_t)(p - path); /* XXX overallocation */
+ limit->l_string_cnt += len;
+ if ((pglob->gl_flags & GLOB_LIMIT) &&
+ limit->l_string_cnt >= GLOB_LIMIT_STRING) {
+ errno = 0;
+ return (GLOB_NOSPACE);
+ }
if ((copy = malloc(len)) != NULL) {
if (g_Ctoc(path, copy, len)) {
free(copy);
diff --git a/lib/libc/gen/isnan.c b/lib/libc/gen/isnan.c
index ec81362..72c2868 100644
--- a/lib/libc/gen/isnan.c
+++ b/lib/libc/gen/isnan.c
@@ -33,8 +33,14 @@
/*
* XXX These routines belong in libm, but they must remain in libc for
* binary compat until we can bump libm's major version number.
+ *
+ * Note this only applies to the dynamic versions of libm and libc, so
+ * for the static and profiled versions we stub out the definitions.
+ * Otherwise you cannot link statically to libm and libc at the same
+ * time, when calling both functions.
*/
+#ifdef PIC
__weak_reference(__isnan, isnan);
__weak_reference(__isnanf, isnanf);
@@ -55,3 +61,4 @@ __isnanf(float f)
u.f = f;
return (u.bits.exp == 255 && u.bits.man != 0);
}
+#endif /* PIC */
diff --git a/lib/libc/gen/sysctlbyname.c b/lib/libc/gen/sysctlbyname.c
index a2e0d5f..88b860d 100644
--- a/lib/libc/gen/sysctlbyname.c
+++ b/lib/libc/gen/sysctlbyname.c
@@ -19,13 +19,10 @@ sysctlbyname(const char *name, void *oldp, size_t *oldlenp,
const void *newp, size_t newlen)
{
int real_oid[CTL_MAXNAME+2];
- int error;
size_t oidlen;
oidlen = sizeof(real_oid) / sizeof(int);
- error = sysctlnametomib(name, real_oid, &oidlen);
- if (error < 0)
- return (error);
- error = sysctl(real_oid, oidlen, oldp, oldlenp, newp, newlen);
- return (error);
+ if (sysctlnametomib(name, real_oid, &oidlen) < 0)
+ return (-1);
+ return (sysctl(real_oid, oidlen, oldp, oldlenp, newp, newlen));
}
diff --git a/lib/libc/gen/unvis-compat.c b/lib/libc/gen/unvis-compat.c
new file mode 100644
index 0000000..080143e
--- /dev/null
+++ b/lib/libc/gen/unvis-compat.c
@@ -0,0 +1,46 @@
+/*-
+ * Copyright (c) 2012 SRI International
+ * All rights reserved.
+ *
+ * This software was developed by SRI International and the University of
+ * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
+ * ("CTSRD"), as part of the DARPA CRASH research programme.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <vis.h>
+
+#define _UNVIS_END 1
+
+int
+__unvis_44bsd(char *cp, int c, int *astate, int flag)
+{
+
+ if (flag & _UNVIS_END)
+ flag = (flag & ~_UNVIS_END) ^ UNVIS_END;
+ return unvis(cp, c, astate, flag);
+}
+
+__sym_compat(unvis, __vis_44bsd, FBSD_1.0);
diff --git a/lib/libc/gen/unvis.3 b/lib/libc/gen/unvis.3
deleted file mode 100644
index 9164f79..0000000
--- a/lib/libc/gen/unvis.3
+++ /dev/null
@@ -1,200 +0,0 @@
-.\" Copyright (c) 1989, 1991, 1993
-.\" The Regents of the University of California. All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\" may be used to endorse or promote products derived from this software
-.\" without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" @(#)unvis.3 8.2 (Berkeley) 12/11/93
-.\" $FreeBSD$
-.\"
-.Dd December 11, 1993
-.Dt UNVIS 3
-.Os
-.Sh NAME
-.Nm unvis ,
-.Nm strunvis
-.Nd decode a visual representation of characters
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In vis.h
-.Ft int
-.Fn unvis "char *cp" "int c" "int *astate" "int flag"
-.Ft int
-.Fn strunvis "char *dst" "const char *src"
-.Ft int
-.Fn strunvisx "char *dst" "const char *src" "int flag"
-.Sh DESCRIPTION
-The
-.Fn unvis ,
-.Fn strunvis
-and
-.Fn strunvisx
-functions
-are used to decode a visual representation of characters, as produced
-by the
-.Xr vis 3
-function, back into
-the original form.
-Unvis is called with successive characters in
-.Fa c
-until a valid
-sequence is recognized, at which time the decoded character is
-available at the character pointed to by
-.Fa cp .
-Strunvis decodes the
-characters pointed to by
-.Fa src
-into the buffer pointed to by
-.Fa dst .
-.Pp
-The
-.Fn strunvis
-function
-simply copies
-.Fa src
-to
-.Fa dst ,
-decoding any escape sequences along the way,
-and returns the number of characters placed into
-.Fa dst ,
-or \-1 if an
-invalid escape sequence was detected.
-The size of
-.Fa dst
-should be
-equal to the size of
-.Fa src
-(that is, no expansion takes place during
-decoding).
-.Pp
-The
-.Fn strunvisx
-function does the same as the
-.Fn strunvis
-function,
-but it allows you to add a flag that specifies the style the string
-.Fa src
-is encoded with.
-Currently, the only supported flag is
-.Dv VIS_HTTPSTYLE .
-.Pp
-The
-.Fn unvis
-function
-implements a state machine that can be used to decode an arbitrary
-stream of bytes.
-All state associated with the bytes being decoded
-is stored outside the
-.Fn unvis
-function (that is, a pointer to the state is passed in), so
-calls decoding different streams can be freely intermixed.
-To
-start decoding a stream of bytes, first initialize an integer
-to zero.
-Call
-.Fn unvis
-with each successive byte, along with a pointer
-to this integer, and a pointer to a destination character.
-The
-.Fn unvis
-function
-has several return codes that must be handled properly.
-They are:
-.Bl -tag -width UNVIS_VALIDPUSH
-.It Li \&0 (zero)
-Another character is necessary; nothing has been recognized yet.
-.It Dv UNVIS_VALID
-A valid character has been recognized and is available at the location
-pointed to by cp.
-.It Dv UNVIS_VALIDPUSH
-A valid character has been recognized and is available at the location
-pointed to by cp; however, the character currently passed in should
-be passed in again.
-.It Dv UNVIS_NOCHAR
-A valid sequence was detected, but no character was produced.
-This
-return code is necessary to indicate a logical break between characters.
-.It Dv UNVIS_SYNBAD
-An invalid escape sequence was detected, or the decoder is in an
-unknown state.
-The decoder is placed into the starting state.
-.El
-.Pp
-When all bytes in the stream have been processed, call
-.Fn unvis
-one more time with
-.Fa flag
-set to
-.Dv UNVIS_END
-to extract any remaining character (the character passed in is ignored).
-.Pp
-The
-.Fa flag
-argument is also used to specify the encoding style of the source.
-If set to
-.Dv VIS_HTTPSTYLE ,
-.Fn unvis
-will decode URI strings as specified in RFC 1808.
-.Pp
-The following code fragment illustrates a proper use of
-.Fn unvis .
-.Bd -literal -offset indent
-int state = 0;
-char out;
-
-while ((ch = getchar()) != EOF) {
-again:
- switch(unvis(&out, ch, &state, 0)) {
- case 0:
- case UNVIS_NOCHAR:
- break;
- case UNVIS_VALID:
- (void) putchar(out);
- break;
- case UNVIS_VALIDPUSH:
- (void) putchar(out);
- goto again;
- case UNVIS_SYNBAD:
- (void)fprintf(stderr, "bad sequence!\en");
- exit(1);
- }
-}
-if (unvis(&out, (char)0, &state, UNVIS_END) == UNVIS_VALID)
- (void) putchar(out);
-.Ed
-.Sh SEE ALSO
-.Xr vis 1 ,
-.Xr vis 3
-.Rs
-.%A R. Fielding
-.%T Relative Uniform Resource Locators
-.%O RFC1808
-.Re
-.Sh HISTORY
-The
-.Fn unvis
-function
-first appeared in
-.Bx 4.4 .
diff --git a/lib/libc/gen/unvis.c b/lib/libc/gen/unvis.c
deleted file mode 100644
index 9069e55..0000000
--- a/lib/libc/gen/unvis.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/*-
- * Copyright (c) 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)unvis.c 8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <ctype.h>
-#include <vis.h>
-
-/*
- * decode driven by state machine
- */
-#define S_GROUND 0 /* haven't seen escape char */
-#define S_START 1 /* start decoding special sequence */
-#define S_META 2 /* metachar started (M) */
-#define S_META1 3 /* metachar more, regular char (-) */
-#define S_CTRL 4 /* control char started (^) */
-#define S_OCTAL2 5 /* octal digit 2 */
-#define S_OCTAL3 6 /* octal digit 3 */
-#define S_HEX2 7 /* hex digit 2 */
-
-#define S_HTTP 0x080 /* %HEXHEX escape */
-
-#define isoctal(c) (((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
-#define ishex(c) ((((u_char)(c)) >= '0' && ((u_char)(c)) <= '9') || (((u_char)(c)) >= 'a' && ((u_char)(c)) <= 'f'))
-
-/*
- * unvis - decode characters previously encoded by vis
- */
-int
-unvis(char *cp, int c, int *astate, int flag)
-{
-
- if (flag & UNVIS_END) {
- if (*astate == S_OCTAL2 || *astate == S_OCTAL3) {
- *astate = S_GROUND;
- return (UNVIS_VALID);
- }
- return (*astate == S_GROUND ? UNVIS_NOCHAR : UNVIS_SYNBAD);
- }
-
- switch (*astate & ~S_HTTP) {
-
- case S_GROUND:
- *cp = 0;
- if (c == '\\') {
- *astate = S_START;
- return (0);
- }
- if (flag & VIS_HTTPSTYLE && c == '%') {
- *astate = S_START | S_HTTP;
- return (0);
- }
- *cp = c;
- return (UNVIS_VALID);
-
- case S_START:
- if (*astate & S_HTTP) {
- if (ishex(tolower(c))) {
- *cp = isdigit(c) ? (c - '0') : (tolower(c) - 'a');
- *astate = S_HEX2;
- return (0);
- }
- }
- switch(c) {
- case '\\':
- *cp = c;
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7':
- *cp = (c - '0');
- *astate = S_OCTAL2;
- return (0);
- case 'M':
- *cp = 0200;
- *astate = S_META;
- return (0);
- case '^':
- *astate = S_CTRL;
- return (0);
- case 'n':
- *cp = '\n';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case 'r':
- *cp = '\r';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case 'b':
- *cp = '\b';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case 'a':
- *cp = '\007';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case 'v':
- *cp = '\v';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case 't':
- *cp = '\t';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case 'f':
- *cp = '\f';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case 's':
- *cp = ' ';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case 'E':
- *cp = '\033';
- *astate = S_GROUND;
- return (UNVIS_VALID);
- case '\n':
- /*
- * hidden newline
- */
- *astate = S_GROUND;
- return (UNVIS_NOCHAR);
- case '$':
- /*
- * hidden marker
- */
- *astate = S_GROUND;
- return (UNVIS_NOCHAR);
- }
- *astate = S_GROUND;
- return (UNVIS_SYNBAD);
-
- case S_META:
- if (c == '-')
- *astate = S_META1;
- else if (c == '^')
- *astate = S_CTRL;
- else {
- *astate = S_GROUND;
- return (UNVIS_SYNBAD);
- }
- return (0);
-
- case S_META1:
- *astate = S_GROUND;
- *cp |= c;
- return (UNVIS_VALID);
-
- case S_CTRL:
- if (c == '?')
- *cp |= 0177;
- else
- *cp |= c & 037;
- *astate = S_GROUND;
- return (UNVIS_VALID);
-
- case S_OCTAL2: /* second possible octal digit */
- if (isoctal(c)) {
- /*
- * yes - and maybe a third
- */
- *cp = (*cp << 3) + (c - '0');
- *astate = S_OCTAL3;
- return (0);
- }
- /*
- * no - done with current sequence, push back passed char
- */
- *astate = S_GROUND;
- return (UNVIS_VALIDPUSH);
-
- case S_OCTAL3: /* third possible octal digit */
- *astate = S_GROUND;
- if (isoctal(c)) {
- *cp = (*cp << 3) + (c - '0');
- return (UNVIS_VALID);
- }
- /*
- * we were done, push back passed char
- */
- return (UNVIS_VALIDPUSH);
-
- case S_HEX2: /* second mandatory hex digit */
- if (ishex(tolower(c))) {
- *cp = (isdigit(c) ? (*cp << 4) + (c - '0') : (*cp << 4) + (tolower(c) - 'a' + 10));
- }
- *astate = S_GROUND;
- return (UNVIS_VALID);
-
- default:
- /*
- * decoder in unknown state - (probably uninitialized)
- */
- *astate = S_GROUND;
- return (UNVIS_SYNBAD);
- }
-}
-
-/*
- * strunvis - decode src into dst
- *
- * Number of chars decoded into dst is returned, -1 on error.
- * Dst is null terminated.
- */
-
-int
-strunvis(char *dst, const char *src)
-{
- char c;
- char *start = dst;
- int state = 0;
-
- while ( (c = *src++) ) {
- again:
- switch (unvis(dst, c, &state, 0)) {
- case UNVIS_VALID:
- dst++;
- break;
- case UNVIS_VALIDPUSH:
- dst++;
- goto again;
- case 0:
- case UNVIS_NOCHAR:
- break;
- default:
- return (-1);
- }
- }
- if (unvis(dst, c, &state, UNVIS_END) == UNVIS_VALID)
- dst++;
- *dst = '\0';
- return (dst - start);
-}
-
-int
-strunvisx(char *dst, const char *src, int flag)
-{
- char c;
- char *start = dst;
- int state = 0;
-
- while ( (c = *src++) ) {
- again:
- switch (unvis(dst, c, &state, flag)) {
- case UNVIS_VALID:
- dst++;
- break;
- case UNVIS_VALIDPUSH:
- dst++;
- goto again;
- case 0:
- case UNVIS_NOCHAR:
- break;
- default:
- return (-1);
- }
- }
- if (unvis(dst, c, &state, UNVIS_END) == UNVIS_VALID)
- dst++;
- *dst = '\0';
- return (dst - start);
-}
diff --git a/lib/libc/gen/vis.3 b/lib/libc/gen/vis.3
deleted file mode 100644
index 8ec16eb..0000000
--- a/lib/libc/gen/vis.3
+++ /dev/null
@@ -1,308 +0,0 @@
-.\" Copyright (c) 1989, 1991, 1993
-.\" The Regents of the University of California. All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\" may be used to endorse or promote products derived from this software
-.\" without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" From: @(#)vis.3 8.1 (Berkeley) 6/9/93
-.\" $FreeBSD$
-.\"
-.Dd April 9, 2006
-.Dt VIS 3
-.Os
-.Sh NAME
-.Nm vis
-.Nd visually encode characters
-.Sh LIBRARY
-.Lb libc
-.Sh SYNOPSIS
-.In vis.h
-.Ft char *
-.Fn vis "char *dst" "int c" "int flag" "int nextc"
-.Ft int
-.Fn strvis "char *dst" "const char *src" "int flag"
-.Ft int
-.Fn strvisx "char *dst" "const char *src" "size_t len" "int flag"
-.Sh DESCRIPTION
-The
-.Fn vis
-function
-copies into
-.Fa dst
-a string which represents the character
-.Fa c .
-If
-.Fa c
-needs no encoding, it is copied in unaltered.
-The string is
-null terminated, and a pointer to the end of the string is
-returned.
-The maximum length of any encoding is four
-characters (not including the trailing
-.Dv NUL ) ;
-thus, when
-encoding a set of characters into a buffer, the size of the buffer should
-be four times the number of characters encoded, plus one for the trailing
-.Dv NUL .
-The
-.Fa flag
-argument is used for altering the default range of
-characters considered for encoding and for altering the visual
-representation.
-The additional character,
-.Fa nextc ,
-is only used when selecting the
-.Dv VIS_CSTYLE
-encoding format (explained below).
-.Pp
-The
-.Fn strvis
-and
-.Fn strvisx
-functions copy into
-.Fa dst
-a visual representation of
-the string
-.Fa src .
-The
-.Fn strvis
-function encodes characters from
-.Fa src
-up to the
-first
-.Dv NUL .
-The
-.Fn strvisx
-function encodes exactly
-.Fa len
-characters from
-.Fa src
-(this
-is useful for encoding a block of data that may contain
-.Dv NUL Ns 's ) .
-Both forms
-.Dv NUL
-terminate
-.Fa dst .
-The size of
-.Fa dst
-must be four times the number
-of characters encoded from
-.Fa src
-(plus one for the
-.Dv NUL ) .
-Both
-forms return the number of characters in dst (not including
-the trailing
-.Dv NUL ) .
-.Pp
-The encoding is a unique, invertible representation composed entirely of
-graphic characters; it can be decoded back into the original form using
-the
-.Xr unvis 3
-or
-.Xr strunvis 3
-functions.
-.Pp
-There are two parameters that can be controlled: the range of
-characters that are encoded, and the type
-of representation used.
-By default, all non-graphic characters
-except space, tab, and newline are encoded.
-(See
-.Xr isgraph 3 . )
-The following flags
-alter this:
-.Bl -tag -width VIS_WHITEX
-.It Dv VIS_GLOB
-Also encode magic characters
-.Ql ( * ,
-.Ql \&? ,
-.Ql \&[
-and
-.Ql # )
-recognized by
-.Xr glob 3 .
-.It Dv VIS_SP
-Also encode space.
-.It Dv VIS_TAB
-Also encode tab.
-.It Dv VIS_NL
-Also encode newline.
-.It Dv VIS_WHITE
-Synonym for
-.Dv VIS_SP
-\&|
-.Dv VIS_TAB
-\&|
-.Dv VIS_NL .
-.It Dv VIS_SAFE
-Only encode "unsafe" characters.
-Unsafe means control
-characters which may cause common terminals to perform
-unexpected functions.
-Currently this form allows space,
-tab, newline, backspace, bell, and return - in addition
-to all graphic characters - unencoded.
-.El
-.Pp
-There are four forms of encoding.
-Most forms use the backslash character
-.Ql \e
-to introduce a special
-sequence; two backslashes are used to represent a real backslash.
-These are the visual formats:
-.Bl -tag -width VIS_HTTPSTYLE
-.It (default)
-Use an
-.Ql M
-to represent meta characters (characters with the 8th
-bit set), and use caret
-.Ql ^
-to represent control characters see
-.Pf ( Xr iscntrl 3 ) .
-The following formats are used:
-.Bl -tag -width xxxxx
-.It Dv \e^C
-Represents the control character
-.Ql C .
-Spans characters
-.Ql \e000
-through
-.Ql \e037 ,
-and
-.Ql \e177
-(as
-.Ql \e^? ) .
-.It Dv \eM-C
-Represents character
-.Ql C
-with the 8th bit set.
-Spans characters
-.Ql \e241
-through
-.Ql \e376 .
-.It Dv \eM^C
-Represents control character
-.Ql C
-with the 8th bit set.
-Spans characters
-.Ql \e200
-through
-.Ql \e237 ,
-and
-.Ql \e377
-(as
-.Ql \eM^? ) .
-.It Dv \e040
-Represents
-.Tn ASCII
-space.
-.It Dv \e240
-Represents Meta-space.
-.El
-.Pp
-.It Dv VIS_CSTYLE
-Use C-style backslash sequences to represent standard non-printable
-characters.
-The following sequences are used to represent the indicated characters:
-.Pp
-.Bl -tag -width ".Li \e0" -offset indent -compact
-.It Li \ea
-.Dv BEL No (007)
-.It Li \eb
-.Dv BS No (010)
-.It Li \ef
-.Dv NP No (014)
-.It Li \en
-.Dv NL No (012)
-.It Li \er
-.Dv CR No (015)
-.It Li \es
-.Dv SP No (040)
-.It Li \et
-.Dv HT No (011)
-.It Li \ev
-.Dv VT No (013)
-.It Li \e0
-.Dv NUL No (000)
-.El
-.Pp
-When using this format, the
-.Fa nextc
-argument is looked at to determine
-if a
-.Dv NUL
-character can be encoded as
-.Ql \e0
-instead of
-.Ql \e000 .
-If
-.Fa nextc
-is an octal digit, the latter representation is used to
-avoid ambiguity.
-.It Dv VIS_HTTPSTYLE
-Use URI encoding as described in RFC 1808.
-The form is
-.Ql %dd
-where
-.Ar d
-represents a hexadecimal digit.
-.It Dv VIS_OCTAL
-Use a three digit octal sequence.
-The form is
-.Ql \eddd
-where
-.Ar d
-represents an octal digit.
-.El
-.Pp
-There is one additional flag,
-.Dv VIS_NOSLASH ,
-which inhibits the
-doubling of backslashes and the backslash before the default
-format (that is, control characters are represented by
-.Ql ^C
-and
-meta characters as
-.Ql M-C ) .
-With this flag set, the encoding is
-ambiguous and non-invertible.
-.Sh SEE ALSO
-.Xr unvis 1 ,
-.Xr unvis 3
-.Rs
-.%A R. Fielding
-.%T Relative Uniform Resource Locators
-.%O RFC1808
-.Re
-.Sh HISTORY
-These functions first appeared in
-.Bx 4.4 .
-.Sh BUGS
-The
-.Nm
-family of functions do not recognize multibyte characters, and thus
-may consider them to be non-printable when they are in fact printable
-(and vice versa.)
diff --git a/lib/libc/gen/vis.c b/lib/libc/gen/vis.c
deleted file mode 100644
index 362f4dc..0000000
--- a/lib/libc/gen/vis.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*-
- * Copyright (c) 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)vis.c 8.1 (Berkeley) 7/19/93";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <limits.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <vis.h>
-
-#define isoctal(c) (((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
-
-/*
- * vis - visually encode characters
- */
-char *
-vis(dst, c, flag, nextc)
- char *dst;
- int c, nextc;
- int flag;
-{
- c = (unsigned char)c;
-
- if (flag & VIS_HTTPSTYLE) {
- /* Described in RFC 1808 */
- if (!(isalnum(c) /* alpha-numeric */
- /* safe */
- || c == '$' || c == '-' || c == '_' || c == '.' || c == '+'
- /* extra */
- || c == '!' || c == '*' || c == '\'' || c == '('
- || c == ')' || c == ',')) {
- *dst++ = '%';
- snprintf(dst, 4, (c < 16 ? "0%X" : "%X"), c);
- dst += 2;
- goto done;
- }
- }
-
- if ((flag & VIS_GLOB) &&
- (c == '*' || c == '?' || c == '[' || c == '#'))
- ;
- else if (isgraph(c) ||
- ((flag & VIS_SP) == 0 && c == ' ') ||
- ((flag & VIS_TAB) == 0 && c == '\t') ||
- ((flag & VIS_NL) == 0 && c == '\n') ||
- ((flag & VIS_SAFE) && (c == '\b' || c == '\007' || c == '\r'))) {
- *dst++ = c;
- if (c == '\\' && (flag & VIS_NOSLASH) == 0)
- *dst++ = '\\';
- *dst = '\0';
- return (dst);
- }
-
- if (flag & VIS_CSTYLE) {
- switch(c) {
- case '\n':
- *dst++ = '\\';
- *dst++ = 'n';
- goto done;
- case '\r':
- *dst++ = '\\';
- *dst++ = 'r';
- goto done;
- case '\b':
- *dst++ = '\\';
- *dst++ = 'b';
- goto done;
- case '\a':
- *dst++ = '\\';
- *dst++ = 'a';
- goto done;
- case '\v':
- *dst++ = '\\';
- *dst++ = 'v';
- goto done;
- case '\t':
- *dst++ = '\\';
- *dst++ = 't';
- goto done;
- case '\f':
- *dst++ = '\\';
- *dst++ = 'f';
- goto done;
- case ' ':
- *dst++ = '\\';
- *dst++ = 's';
- goto done;
- case '\0':
- *dst++ = '\\';
- *dst++ = '0';
- if (isoctal(nextc)) {
- *dst++ = '0';
- *dst++ = '0';
- }
- goto done;
- }
- }
- if (((c & 0177) == ' ') || isgraph(c) || (flag & VIS_OCTAL)) {
- *dst++ = '\\';
- *dst++ = ((u_char)c >> 6 & 07) + '0';
- *dst++ = ((u_char)c >> 3 & 07) + '0';
- *dst++ = ((u_char)c & 07) + '0';
- goto done;
- }
- if ((flag & VIS_NOSLASH) == 0)
- *dst++ = '\\';
- if (c & 0200) {
- c &= 0177;
- *dst++ = 'M';
- }
- if (iscntrl(c)) {
- *dst++ = '^';
- if (c == 0177)
- *dst++ = '?';
- else
- *dst++ = c + '@';
- } else {
- *dst++ = '-';
- *dst++ = c;
- }
-done:
- *dst = '\0';
- return (dst);
-}
-
-/*
- * strvis, strvisx - visually encode characters from src into dst
- *
- * Dst must be 4 times the size of src to account for possible
- * expansion. The length of dst, not including the trailing NUL,
- * is returned.
- *
- * Strvisx encodes exactly len bytes from src into dst.
- * This is useful for encoding a block of data.
- */
-int
-strvis(dst, src, flag)
- char *dst;
- const char *src;
- int flag;
-{
- char c;
- char *start;
-
- for (start = dst; (c = *src); )
- dst = vis(dst, c, flag, *++src);
- *dst = '\0';
- return (dst - start);
-}
-
-int
-strvisx(dst, src, len, flag)
- char *dst;
- const char *src;
- size_t len;
- int flag;
-{
- int c;
- char *start;
-
- for (start = dst; len > 1; len--) {
- c = *src;
- dst = vis(dst, c, flag, *++src);
- }
- if (len)
- dst = vis(dst, *src, flag, '\0');
- *dst = '\0';
-
- return (dst - start);
-}
diff --git a/lib/libc/gen/waitid.c b/lib/libc/gen/waitid.c
new file mode 100644
index 0000000..795b208
--- /dev/null
+++ b/lib/libc/gen/waitid.c
@@ -0,0 +1,65 @@
+/*-
+ * Copyright (c) 2012 Jukka A. Ukkonen
+ * All rights reserved.
+ *
+ * This software was developed by Jukka Ukkonen for FreeBSD.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "namespace.h"
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stddef.h>
+#include <string.h>
+#include <signal.h>
+#include <errno.h>
+#include "un-namespace.h"
+
+int
+__waitid(idtype_t idtype, id_t id, siginfo_t *info, int flags)
+{
+ int status;
+ pid_t ret;
+
+ ret = _wait6(idtype, id, &status, flags, NULL, info);
+
+ /*
+ * According to SUSv4, waitid() shall not return a PID when a
+ * process is found, but only 0. If a process was actually
+ * found, siginfo_t fields si_signo and si_pid will be
+ * non-zero. In case WNOHANG was set in the flags and no
+ * process was found those fields are set to zero using
+ * memset() below.
+ */
+ if (ret == 0 && info != NULL)
+ memset(info, 0, sizeof(*info));
+ else if (ret > 0)
+ ret = 0;
+ return (ret);
+}
+
+__weak_reference(__waitid, waitid);
+__weak_reference(__waitid, _waitid);
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