avoid dependency on libuuid by using /dev/urandom on non-Windows

This commit is contained in:
Matthew Flatt 2020-08-02 17:16:31 -06:00
parent 2cca030eff
commit 2d0961adcf
5 changed files with 457 additions and 424 deletions

View File

@ -22,7 +22,6 @@ On Unix variants:
* GCC, Clang, or a similarly capable compiler
* Header files and libraries for ncurses [unless --disable-curses]
* Header files and libraries for X windows [unless --disable-x11]
* Header files and libraries for uuid
On Windows:

View File

@ -65,7 +65,55 @@ ptr S_unique_id() {
Sunsigned32(u.foo[3]))));
}
#elif defined(USE_OSSP_UUID) /* WIN32 */
#elif defined(USE_DEV_URANDOM_UUID) /* WIN32 */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
ptr S_unique_id() {
U32 r[4];
int fd, failed = 0;
/* Implements UUIDv4 (random) using /dev/urandom */
do {
fd = open("/dev/urandom", O_RDONLY);
} while ((fd == -1) && errno == EAGAIN);
if (fd != -1) {
int delta = 0, got;
while (delta < (int)sizeof(r)) {
got = read(fd, (char *)r + delta, sizeof(r) - delta);
if (got < 0) {
if (errno != EAGAIN) {
failed = 1;
break;
}
} else
delta += got;
}
do {
got = close(fd);
} while ((got != 0) && (errno == EAGAIN));
} else
failed = 1;
if (failed)
S_error("S_unique_id", "failed to access random bytes");
/* Set bits to indidate UUIDv4: */
r[1] = (r[1] & (U32)0xFFFF0FFF) | (U32)0x00004000;
r[2] = (r[2] & (U32)0x3FFFFFFF) | (U32)0x80000000;
return S_add(S_ash(Sunsigned32(r[0]), Sinteger(8*3*sizeof(U32))),
S_add(S_ash(Sunsigned32(r[1]), Sinteger(8*2*sizeof(U32))),
S_add(S_ash(Sunsigned32(r[2]), Sinteger(8*sizeof(U32))),
Sunsigned32(r[3]))));
}
#elif defined(USE_OSSP_UUID) /* USE_DEV_URANDOM_UUID */
#include <ossp/uuid.h>

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@ -465,3 +465,6 @@ typedef char tputsputcchar;
#ifndef WRITE
# define WRITE write
#endif
/* Use "/dev/urandom" everywhere except Windows */
#define USE_DEV_URANDOM_UUID

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@ -675,10 +675,10 @@ ARFLAGS
AR
LD
upsrcdir
STRIP
EGREP
GREP
CPP
STRIP
platform_ar_found
RANLIB
OBJEXT
@ -4226,14 +4226,14 @@ case "$host_os" in
*freebsd*)
MACH_OS=fb
CFLAGS="${CFLAGS} -I/usr/local/include"
LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread -lossp-uuid"
LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread"
CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
ELF_COMP="--expect-elf"
;;
openbsd*)
MACH_OS=ob
CFLAGS="${CFLAGS} -I/usr/local/include"
LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread -lossp-uuid"
LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread"
LDFLAGS="${LDFLAGS} -Wl,-zwxneeded"
CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
ELF_COMP="--expect-elf"
@ -4253,418 +4253,9 @@ case "$host_os" in
;;
linux*)
MACH_OS=le
LIBS="${LIBS} -lrt -luuid"
LIBS="${LIBS} -lrt"
CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
ELF_COMP="--expect-elf"
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*)
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int
main ()
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int i;
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osf1*)
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@ -5157,7 +4748,404 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
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for ac_prog in grep ggrep; do
for ac_exec_ext in '' $ac_executable_extensions; do
ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
as_fn_executable_p "$ac_path_GREP" || continue
# Check for GNU ac_path_GREP and select it if it is found.
# Check for GNU $ac_path_GREP
case `"$ac_path_GREP" --version 2>&1` in
*GNU*)
ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
*)
ac_count=0
$as_echo_n 0123456789 >"conftest.in"
while :
do
cat "conftest.in" "conftest.in" >"conftest.tmp"
mv "conftest.tmp" "conftest.in"
cp "conftest.in" "conftest.nl"
$as_echo 'GREP' >> "conftest.nl"
"$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
as_fn_arith $ac_count + 1 && ac_count=$as_val
if test $ac_count -gt ${ac_path_GREP_max-0}; then
# Best one so far, save it but keep looking for a better one
ac_cv_path_GREP="$ac_path_GREP"
ac_path_GREP_max=$ac_count
fi
# 10*(2^10) chars as input seems more than enough
test $ac_count -gt 10 && break
done
rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac
$ac_path_GREP_found && break 3
done
done
done
IFS=$as_save_IFS
if test -z "$ac_cv_path_GREP"; then
as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
fi
else
ac_cv_path_GREP=$GREP
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
$as_echo "$ac_cv_path_GREP" >&6; }
GREP="$ac_cv_path_GREP"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
$as_echo_n "checking for egrep... " >&6; }
if ${ac_cv_path_EGREP+:} false; then :
$as_echo_n "(cached) " >&6
else
if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
then ac_cv_path_EGREP="$GREP -E"
else
if test -z "$EGREP"; then
ac_path_EGREP_found=false
# Loop through the user's path and test for each of PROGNAME-LIST
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
IFS=$as_save_IFS
test -z "$as_dir" && as_dir=.
for ac_prog in egrep; do
for ac_exec_ext in '' $ac_executable_extensions; do
ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
as_fn_executable_p "$ac_path_EGREP" || continue
# Check for GNU ac_path_EGREP and select it if it is found.
# Check for GNU $ac_path_EGREP
case `"$ac_path_EGREP" --version 2>&1` in
*GNU*)
ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
*)
ac_count=0
$as_echo_n 0123456789 >"conftest.in"
while :
do
cat "conftest.in" "conftest.in" >"conftest.tmp"
mv "conftest.tmp" "conftest.in"
cp "conftest.in" "conftest.nl"
$as_echo 'EGREP' >> "conftest.nl"
"$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
as_fn_arith $ac_count + 1 && ac_count=$as_val
if test $ac_count -gt ${ac_path_EGREP_max-0}; then
# Best one so far, save it but keep looking for a better one
ac_cv_path_EGREP="$ac_path_EGREP"
ac_path_EGREP_max=$ac_count
fi
# 10*(2^10) chars as input seems more than enough
test $ac_count -gt 10 && break
done
rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac
$ac_path_EGREP_found && break 3
done
done
done
IFS=$as_save_IFS
if test -z "$ac_cv_path_EGREP"; then
as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
fi
else
ac_cv_path_EGREP=$EGREP
fi
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
$as_echo "$ac_cv_path_EGREP" >&6; }
EGREP="$ac_cv_path_EGREP"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
$as_echo_n "checking for ANSI C header files... " >&6; }
if ${ac_cv_header_stdc+:} false; then :
$as_echo_n "(cached) " >&6
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
ac_cv_header_stdc=yes
else
ac_cv_header_stdc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
if test $ac_cv_header_stdc = yes; then
# SunOS 4.x string.h does not declare mem*, contrary to ANSI.
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <string.h>
_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
$EGREP "memchr" >/dev/null 2>&1; then :
else
ac_cv_header_stdc=no
fi
rm -f conftest*
fi
if test $ac_cv_header_stdc = yes; then
# ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <stdlib.h>
_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
$EGREP "free" >/dev/null 2>&1; then :
else
ac_cv_header_stdc=no
fi
rm -f conftest*
fi
if test $ac_cv_header_stdc = yes; then
# /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
if test "$cross_compiling" = yes; then :
:
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <ctype.h>
#include <stdlib.h>
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
(('a' <= (c) && (c) <= 'i') \
|| ('j' <= (c) && (c) <= 'r') \
|| ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif
#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int
main ()
{
int i;
for (i = 0; i < 256; i++)
if (XOR (islower (i), ISLOWER (i))
|| toupper (i) != TOUPPER (i))
return 2;
return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
else
ac_cv_header_stdc=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
$as_echo "$ac_cv_header_stdc" >&6; }
if test $ac_cv_header_stdc = yes; then
$as_echo "#define STDC_HEADERS 1" >>confdefs.h
fi
# On IRIX 5.3, sys/types and inttypes.h are conflicting.
for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
inttypes.h stdint.h unistd.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF
fi
done
ac_fn_c_check_header_mongrel "$LINENO" "iconv.h" "ac_cv_header_iconv_h" "$ac_includes_default"
if test "x$ac_cv_header_iconv_h" = xyes; then :
enable_iconv=yes
else

View File

@ -194,14 +194,14 @@ case "$host_os" in
*freebsd*)
MACH_OS=fb
CFLAGS="${CFLAGS} -I/usr/local/include"
LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread -lossp-uuid"
LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread"
CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
ELF_COMP="--expect-elf"
;;
openbsd*)
MACH_OS=ob
CFLAGS="${CFLAGS} -I/usr/local/include"
LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread -lossp-uuid"
LIBS="${LIBS} -L/usr/local/lib -liconv -lm -lpthread"
LDFLAGS="${LDFLAGS} -Wl,-zwxneeded"
CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
ELF_COMP="--expect-elf"
@ -221,14 +221,9 @@ case "$host_os" in
;;
linux*)
MACH_OS=le
LIBS="${LIBS} -lrt -luuid"
LIBS="${LIBS} -lrt"
CPPFLAGS="${CPPFLAGS} -DELF_FIND_BOOT_SECTION"
ELF_COMP="--expect-elf"
AC_CHECK_HEADER(uuid/uuid.h, ok_uuid=yes, ok_uuid=no)
if test "${ok_uuid}" != "yes"; then
echo Could not find uuid/uuid.h, needed for Chez Scheme
exit 1
fi
;;
osf1*)
;;