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zlib 1.2.0

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This commit is contained in:
Mark Adler
2011-09-09 23:21:47 -07:00
parent a383133c4e
commit 7c2a874e50
77 changed files with 7236 additions and 2478 deletions
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219
configure vendored
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@@ -72,8 +72,11 @@ if test "$gcc" -eq 1 && ($cc -c $cflags $test.c) 2>/dev/null; then
SFLAGS=${CFLAGS-"-fPIC -O3"}
CFLAGS="$cflags"
case `(uname -s || echo unknown) 2>/dev/null` in
Linux | linux) LDSHARED=${LDSHARED-"gcc -shared -Wl,-soname,libz.so.1"};;
*) LDSHARED=${LDSHARED-"gcc -shared"};;
Linux | linux) LDSHARED=${LDSHARED-"$cc -shared -Wl,-soname,libz.so.1"};;
HP-UX*) LDSHARED=${LDSHARED-"$cc -shared $SFLAGS"}
shared_ext='.sl'
SHAREDLIB='libz.sl';;
*) LDSHARED=${LDSHARED-"$cc -shared"};;
esac
else
# find system name and corresponding cc options
@@ -116,6 +119,10 @@ else
SFLAGS=${CFLAGS-"-Kconform_pic -O"}
CFLAGS=${CFLAGS-"-O"}
LDSHARED=${LDSHARED-"cc -G"};;
OpenUNIX\ 5)
SFLAGS=${CFLAGS-"-KPIC -O"}
CFLAGS=${CFLAGS-"-O"}
LDSHARED=${LDSHARED-"cc -G"};;
# send working options for other systems to support@gzip.org
*) SFLAGS=${CFLAGS-"-O"}
CFLAGS=${CFLAGS-"-O"}
@@ -149,13 +156,219 @@ cat > $test.c <<EOF
int main() { return 0; }
EOF
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
CFLAGS="$CFLAGS -DHAVE_UNISTD_H"
sed < zconf.in.h "/HAVE_UNISTD_H/s%0%1%" > zconf.h
echo "Checking for unistd.h... Yes."
else
cp -p zconf.in.h zconf.h
echo "Checking for unistd.h... No."
fi
cat > $test.c <<EOF
#include <stdio.h>
#include <stdlib.h>
#if (defined(__MSDOS__) || defined(_WINDOWS) || defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__STDC__) || defined(__cplusplus) || defined(__OS2__)) && !defined(STDC)
# define STDC
#endif
int main()
{
#ifndef STDC
choke me
#endif
return 0;
}
EOF
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
echo "Checking whether to use vsnprintf() or snprintf()... using vsnprintf()"
cat > $test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
int mytest(char *fmt, ...)
{
char buf[20];
va_list ap;
va_start(ap, fmt);
vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
return 0;
}
int main()
{
return (mytest("Hello%d\n", 1));
}
EOF
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
echo "Checking for vsnprintf() in stdio.h... Yes."
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
int mytest(char *fmt, ...)
{
int i;
char buf[20];
va_list ap;
va_start(ap, fmt);
i = vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
return 0;
}
int main()
{
return (mytest("Hello%d\n", 1));
}
EOF
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
echo "Checking for return value of vsnprintf()... Yes."
else
CFLAGS="$CFLAGS -DHAS_vsnprintf_void"
echo "Checking for return value of vsnprintf()... No."
echo " WARNING: apparently vsnprintf() does not return a value. zlib"
echo " can build but will be open to possible string-format security"
echo " vulnerabilities."
fi
else
CFLAGS="$CFLAGS -DNO_vsnprintf"
echo "Checking for vsnprintf() in stdio.h... No."
echo " WARNING: vsnprintf() not found, falling back to vsprintf(). zlib"
echo " can build but will be open to possible buffer-overflow security"
echo " vulnerabilities."
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
int mytest(char *fmt, ...)
{
int i;
char buf[20];
va_list ap;
va_start(ap, fmt);
i = vsprintf(buf, fmt, ap);
va_end(ap);
return 0;
}
int main()
{
return (mytest("Hello%d\n", 1));
}
EOF
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
echo "Checking for return value of vsprintf()... Yes."
else
CFLAGS="$CFLAGS -DHAS_vsprintf_void"
echo "Checking for return value of vsprintf()... No."
echo " WARNING: apparently vsprintf() does not return a value. zlib"
echo " can build but will be open to possible string-format security"
echo " vulnerabilities."
fi
fi
else
echo "Checking whether to use vsnprintf() or snprintf()... using snprintf()"
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
int mytest()
{
char buf[20];
snprintf(buf, sizeof(buf), "%s", "foo");
return 0;
}
int main()
{
return (mytest());
}
EOF
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
echo "Checking for snprintf() in stdio.h... Yes."
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
int mytest(char *fmt, ...)
{
int i;
char buf[20];
i = snprintf(buf, sizeof(buf), "%s", "foo");
return 0;
}
int main()
{
return (mytest());
}
EOF
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
echo "Checking for return value of snprintf()... Yes."
else
CFLAGS="$CFLAGS -DHAS_snprintf_void"
echo "Checking for return value of snprintf()... No."
echo " WARNING: apparently snprintf() does not return a value. zlib"
echo " can build but will be open to possible string-format security"
echo " vulnerabilities."
fi
else
CFLAGS="$CFLAGS -DNO_snprintf"
echo "Checking for snprintf() in stdio.h... No."
echo " WARNING: snprintf() not found, falling back to sprintf(). zlib"
echo " can build but will be open to possible buffer-overflow security"
echo " vulnerabilities."
cat >$test.c <<EOF
#include <stdio.h>
#include <stdarg.h>
int mytest(char *fmt, ...)
{
int i;
char buf[20];
i = sprintf(buf, "%s", "foo");
return 0;
}
int main()
{
return (mytest());
}
EOF
if test "`($CC -c $CFLAGS $test.c) 2>&1`" = ""; then
echo "Checking for return value of sprintf()... Yes."
else
CFLAGS="$CFLAGS -DHAS_sprintf_void"
echo "Checking for return value of sprintf()... No."
echo " WARNING: apparently sprintf() does not return a value. zlib"
echo " can build but will be open to possible string-format security"
echo " vulnerabilities."
fi
fi
fi
cat >$test.c <<EOF
#include <errno.h>
int main() { return 0; }
EOF