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add a configure script and some compat 

tested on openbsd, alpine and void
This commit is contained in:
Omar Polo 2021-01-21 11:57:46 +00:00
parent 338f06f4e5
commit 12042ad700
16 changed files with 787 additions and 13 deletions
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6
.gitignore vendored
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@ -7,3 +7,9 @@ iri_test
docs
lex.yy.c
y.tab.*
Makefile.local
config.h
config.h.old
config.log
config.log.old
configure.local

21
Makefile
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@ -1,17 +1,11 @@
CC = cc
CFLAGS = -Wall -Wextra -g
LDFLAGS = -ltls
LEX = lex
YACC = yacc
PREFIX = /usr/local
# /usr/local/lib on FreeBSD
LIBDIR = /usr/lib/
.PHONY: all static clean test install
all: gmid TAGS
all: Makefile.local gmid TAGS
Makefile.local: configure
./configure
include Makefile.local
lex.yy.c: lex.l y.tab.c
${LEX} lex.l
@ -20,7 +14,7 @@ y.tab.c: parse.y
${YACC} -b y -d parse.y
SRCS = gmid.c iri.c utf8.c ex.c server.c sandbox.c mime.c
OBJS = ${SRCS:.c=.o} lex.yy.o y.tab.o
OBJS = ${SRCS:.c=.o} lex.yy.o y.tab.o ${COMPAT}
gmid: ${OBJS}
${CC} ${OBJS} -o gmid ${LDFLAGS}
@ -36,6 +30,7 @@ TAGS: ${SRCS}
clean:
rm -f *.o lex.yy.c y.tab.c y.tab.h y.output gmid iri_test
rm -f Makefile.local
iri_test: iri_test.o iri.o utf8.o
${CC} iri_test.o iri.o utf8.o -o iri_test ${LDFLAGS}

84
compat/err.c Normal file
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@ -0,0 +1,84 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <errno.h>
#include <stdio.h>
#include <stdarg.h>
/* cheat: if we don't have getprogname in stdlib, will link against
* compat/getprogname.c anyway. */
const char *getprogname(void);
static void vwarn_impl(const char*, va_list);
static void vwarnx_impl(const char*, va_list);
static void
vwarn_impl(const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", getprogname());
vfprintf(stderr, fmt, ap);
fprintf(stderr, ": %s\n", strerror(errno));
}
static void
vwarnx_impl(const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", getprogname());
vfprintf(stderr, fmt, ap);
fprintf(stderr, "\n");
}
void
err(int ret, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarn_impl(fmt, va);
va_end(ap, fmt);
exit(ret);
}
void
errx(int ret, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnx_impl(fmt, va);
va_end(ap, fmt);
exit(ret);
}
void
warn(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarn_impl(fmt, va);
va_end(ap, fmt);
}
void
warnx(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnx_impl(fmt, va);
va_end(ap, fmt);
}

21
compat/getprogname.c Normal file
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@ -0,0 +1,21 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
const char *
getprogname(void)
{
return "gmid";
}

54
compat/strlcat.c Normal file
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@ -0,0 +1,54 @@
/*
* Copyright (c) 1998, 2015 Todd C. Miller <millert@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <string.h>
/*
* Appends src to string dst of size dsize (unlike strncat, dsize is the
* full size of dst, not space left). At most dsize-1 characters
* will be copied. Always NUL terminates (unless dsize <= strlen(dst)).
* Returns strlen(src) + MIN(dsize, strlen(initial dst)).
* If retval >= dsize, truncation occurred.
*/
size_t
strlcat(char *dst, const char *src, size_t dsize)
{
const char *odst = dst;
const char *osrc = src;
size_t n = dsize;
size_t dlen;
/* Find the end of dst and adjust bytes left but don't go past end. */
while (n-- != 0 && *dst != '\0')
dst++;
dlen = dst - odst;
n = dsize - dlen;
if (n-- == 0)
return(dlen + strlen(src));
while (*src != '\0') {
if (n != 0) {
*dst++ = *src;
n--;
}
src++;
}
*dst = '\0';
return(dlen + (src - osrc)); /* count does not include NUL */
}

49
compat/strlcpy.c Normal file
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@ -0,0 +1,49 @@
/*
* Copyright (c) 1998, 2015 Todd C. Miller <millert@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "config.h"
#include <sys/types.h>
#include <string.h>
/*
* Copy string src to buffer dst of size dsize. At most dsize-1
* chars will be copied. Always NUL terminates (unless dsize == 0).
* Returns strlen(src); if retval >= dsize, truncation occurred.
*/
size_t
strlcpy(char *dst, const char *src, size_t dsize)
{
const char *osrc = src;
size_t nleft = dsize;
/* Copy as many bytes as will fit. */
if (nleft != 0) {
while (--nleft != 0) {
if ((*dst++ = *src++) == '\0')
break;
}
}
/* Not enough room in dst, add NUL and traverse rest of src. */
if (nleft == 0) {
if (dsize != 0)
*dst = '\0'; /* NUL-terminate dst */
while (*src++)
;
}
return(src - osrc - 1); /* count does not include NUL */
}

46
compat/vasprintf.c Normal file
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@ -0,0 +1,46 @@
/* from mandoc, with tweaks */
/*
* Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* This fallback implementation is not efficient:
* It does the formatting twice.
* Short of fiddling with the unknown internals of the system's
* printf(3) or completely reimplementing printf(3), i can't think
* of another portable solution.
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
int
vasprintf(char **ret, const char *format, va_list ap)
{
char buf[2];
va_list ap2;
int sz;
va_copy(ap2, ap);
sz = vsnprintf(buf, sizeof(buf), format, ap2);
va_end(ap2);
if (sz != -1 && (*ret = malloc(sz + 1)) != NULL) {
if (vsnprintf(*ret, sz + 1, format, ap) == sz)
return sz;
free(*ret);
}
*ret = NULL;
return -1;
}

328
configure vendored Executable file
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@ -0,0 +1,328 @@
#!/bin/sh
#
# Copyright (c) 2021 Omar Polo <op@omarpolo.com>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# adapted from mandoc configure and oconfigure, thanks schwarze@ and
# kristaps@!
set -e
[ -w config.log ] && mv config.log config.log.old
[ -w config.h ] && mv config.h config.h.old
# Output file descriptor usage:
# 1 (stdout): config.h, Makefile.local
# 2 (stderr): original stderr, usually to the console
# 3: config.log
exec 3> config.log
echo "file config.log: writing..."
# --------
# default settings: initialize all vars here
CC=cc
CFLAGS=
LDFLAGS=-ltls
YACC=yacc
LEX=lex
STATIC=
HAVE_ERR=
HAVE_GETPROGNAME=
HAVE_LIBTLS=
HAVE_STRLCAT=
HAVE_STRLCPY=
HAVE_VASPRINTF=
NEED_GNU_SOURCE=0
NEED_OPENBSD_SOURCE=0
PREFIX="/usr/local"
BINDIR=
INSTALL="install"
# try to auto detect CFLAGS and LDFLAGS
which pkg-config 2>/dev/null 1>&2 && {
if ! got=`pkg-config --cflags libtls`; then
CFLAGS="$got"
fi
if ! got=`pkg-config --libs libtls`; then
LDFLAGS="$got"
fi
}
# auto detect lex/flex
which ${LEX} 2>/dev/null 1>&2 || {
echo "${LEX} not found: trying flex" 1>&2
echo "${LEX} not found: trying flex" 1>&3
LEX=flex
which ${LEX} 2>/dev/null 1>&2 || {
echo "${LEX} not found: giving up" 1>&2
echo "${LEX} not found: giving up" 1>&3
exit 1
}
}
# auto detect yacc/bison
which ${YACC} 2>/dev/null 1>&2 || {
echo "${YACC} not found: trying bison" 1>&2
echo "${YACC} not found: trying bison" 1>&3
YACC=bison
which ${YACC} 2>/dev/null 1>&2 || {
echo "${YACC} not found: giving up" 1>&2
echo "${YACC} not found: giving up" 1>&3
exit 1
}
}
# --------
# allow certain variables to be overridden on the command line
for keyvals in "$@"; do
key=`echo $keyvals | cut -s -d '=' -f1`
if [ -z "$key" ]; then
echo "$0: invalid key-value: $keyvals" 1>&2
exit 1
fi
vals=`echo $keyvals | cut -d '=' -f 2-`
case "$key" in
BINDIR) BINDIR="$val" ;;
CC) CC="$val" ;;
CFLAGS) CFLAGS="$val" ;;
DESTDIR) DESTDIR="$val" ;;
LDFLAGS) LDFLAGS="$val" ;;
LEX) LEX="$lex" ;;
PREFIX) PREFIX="$val" ;;
YACC) YACC="$val" ;;
*)
echo "$0: invalid key: $key" 1>&2
exit 1
esac
done
# --------
# tests functions
# Check whether this HAVE_ setting is manually overridden.
# If yes, use the override, if no, do not decide anything yet.
# Arguments: test file name, test var name, manual value
ismanual() {
[ -z "${3}" ] && return 1
echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&2
echo "tested ${1}: HAVE_${2}=${3} (manual)" 1>&3
echo 1>&3
return 0
}
# Run a single autoconfiguration test.
# In case of success, enable the feature.
# In case of failure, do not decide anything yet.
# Arguments: test file name, test var name, additional CFLAGS
singletest() {
n=${1}${3}
cat 1>&3 << __HEREDOC__
testing ${n} ...
${COMP} -o have/${1} have/${1}.c ${3} ${LDFLAGS}
__HEREDOC__
if ${COMP} -o "have/${1}" "have/${1}.c" ${3} ${LDFLAGS} 1>&3 2>&3
then
echo "partial result of ${n}: ${CC} succeeded" 1>&3
else
echo "tested ${n}: no (compilation failed)" 1>&2
echo "result of ${n}: ${CC} failed with exit status $?" 1>&3
echo "result of compiling ${n}: no" 1>&3
echo 1>&3
return 1
fi
if ./have/${1} 1>&3 2>&3; then
echo "tested ${n}: yes" 1>&2
echo "result of running ${n}: yes" 1>&3
echo 1>&3
eval HAVE_${2}=1
[ "${3}" = "-D_GNU_SOURCE" ] && NEED_GNU_SOURCE=1
[ "${3}" = "-D_OPENBSD_SOURCE" ] && NEED_OPENBSD_SOURCE=1
[ "${3}" = "-lsocket" ] && LD_RECVMSG="-lsocket"
rm "have/${1}"
return 0
else
echo "tested ${n}: no (execution failed)" 1>&2
echo "result of ${n}: execution failed with exit status $?" 1>&3
echo "result of running ${n}: no" 1>&3
echo 1>&3
rm "have/${1}"
return 1
fi
}
# Run a complete autoconfiguration test, including the check for
# a manual override and disabling the feature on failure.
# Arguments: test file name, test var name, additional CFLAGS
# The final argument can optionally be repeated a second time.
runtest() {
eval _manual=\${HAVE_${2}}
ismanual "${1}" "${2}" "${_manual}" && return 0
singletest "${1}" "${2}" "${3}" && return 0
[ -n "${4}" ] && singletest "${1}" "${2}" "${4}" && return 0
eval HAVE_${2}=0
return 1
}
# --------
# compiler options
DEFCFLAGS="-g -W -Wall -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wno-unused-parameter"
if [ -n "${CFLAGS}" ]; then
COMP="${CC} ${CFLAGS} -Wno-unused -Werror"
else
COMP="${CC} ${CDEFCFLAGS} -Wno-unused -Werror"
fi
echo -n "testing ${CC} -W: " 1>&2
echo -n "testing ${CC} -W: " 1>&3
runtest noop WFLAG || true
if [ -n "${CFLAGS}" ]; then
echo "CFLAGS specified manually:" 1>&3
elif [ ${HAVE_WFLAG} -eq 0 ]; then
CFLAGS="-g"
else
CFLAGS="${DEFCFLAGS}"
fi
echo "selected CFLAGS=\"${CFLAGS}\"" 1>&2
echo "selected CFLAGS=\"${CFLAGS}\"" 1>&3
echo 1>&3
COMP="${CC} ${CFLAGS}"
[ ${HAVE_WFLAG} -eq 0 ] || COMP="${COMP} -Wno-unused -Werror"
if [ -n "${STATIC}" ]; then
echo "selected STATIC=\"${STATIC}\" (manual)" 1>&2
echo "selected STATIC=\"${STATIC}\" (manual)" 1>&3
echo 1>&3
else
runtest noop STATIC -static || true
[ ${HAVE_STATIC} -eq 0 ] || STATIC="-static"
echo "selected STATIC=\"${STATIC}\"" 1>&2
echo "selected STATIC=\"${STATIC}\"" 1>&3
echo 1>&3
fi
# --------
# tests for config.h
runtest err ERR || true
runtest libtls LIBTLS || true
runtest strlcat STRLCAT || true
runtest strlcpy STRLCPY || true
runtest vasprintf VASPRINTF "" -D_GNU_SOURCE || true
if [ ${HAVE_LIBTLS} -eq 0 ]; then
echo "FATAL: libtls not found" 1>&2
echo "FATAL: libtls not found" 1>&3
exit 1
fi
# --------
# write config.h
exec > config.h
cat <<__HEREDOC__
#ifdef __cplusplus
#error "Do not use C++."
#endif
__HEREDOC__
[ ${NEED_GNU_SOURCE} -eq 0 ] || echo "#define _GNU_SOURCE"
[ ${NEED_OPENBSD_SOURCE} -eq 0 ] || echo "#define _OPENBSD_SOURCE"
[ ${HAVE_STRLCAT} -eq 0 -o ${HAVE_STRLCPY} -eq 0 ] \
&& echo "#include <sys/types.h>"
[ ${HAVE_VASPRINTF} -eq 0 ] && echo "#include <stdarg.h>"
cat <<__HEREDOC__
#define HAVE_ERR ${HAVE_ERR}
#define HAVE_GETPROGNAME ${HAVE_GETPROGNAME}
#define HAVE_STRLCAT ${HAVE_STRLCAT}
#define HAVE_STRLCPY ${HAVE_STRLCPY}
#define HAVE_VASPRINTF ${HAVE_VASPRINTF}
__HEREDOC__
if [ ${HAVE_ERR} -eq 0 ]; then
echo "extern void err(int, const char*, ...);"
echo "extern void errx(int, const char*, ...);"
echo "extern void warn(const char*, ...);"
echo "extern void warnx(const char*, ...);"
COMPAT="${COMPAT} compat/err.o"
fi
if [ ${HAVE_STRLCAT} -eq 0 ]; then
echo "extern size_t strlcat(char*, const char*, size_t);"
COMPAT="${COMPAT} compat/strlcat.o"
fi
if [ ${HAVE_STRLCPY} -eq 0 ]; then
echo "extern size_t strlcpy(char*, const char*, size_t);"
COMPAT="${COMPAT} compat/strlcpy.o"
fi
if [ ${HAVE_VASPRINTF} -eq 0 ]; then
echo "extern int vasprintf(char**, const char*, va_list);"
COMPAT="${COMPAT} compat/vasprintf.o"
fi
echo "file config.h: written" 1>&2
echo "file config.h: written" 1>&3
# --------
# tests for Makefile.local
exec > Makefile.local
[ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin"
[ -z "${MANDIR}" ] && MANDIR="${PREFIX}/man"
[ -z "${INSTALL_PROGRAM}" ] && INSTALL_PROGRAM="${INSTALL} -m 0555"
[ -z "${INSTALL_LIB}" ] && INSTALL_LIB="${INSTALL} -m 0444"
[ -z "${INSTALL_MAN}" ] && INSTALL_MAN="${INSTALL} -m 0444"
[ -z "${INSTALL_DATA}" ] && INSTALL_DATA="${INSTALL} -m 0444"
cat << __HEREDOC__
CC = ${CC}
CFLAGS = ${CFLAGS}
LDFLAGS = ${LDFLAGS}
YACC = ${YACC}
LEX = ${LEX}
COMPAT = ${COMPAT}
STATIC = ${STATIC}
PREFIX = ${PREFIX}
BINDIR = ${BINDIR}
INCLUDEDIR = ${INCLUDEDIR}
INSTALL = ${INSTALL}
INSTALL_PROGRAM = ${INSTALL_PROGRAM}
INSTALL_LIB = ${INSTALL_LIB}
INSTALL_MAN = ${INSTALL_MAN}
INSTALL_DATA = ${INSTALL_DATA}
__HEREDOC__
echo "file Makefile.local: written" 1>&2
echo "file Makefile.local: written" 1>&3
exit 0

2
gmid.h
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@ -28,6 +28,8 @@
#include <tls.h>
#include <unistd.h>
#include "config.h"
#ifndef INFTIM
# define INFTIM -1
#endif

26
have/err.c Normal file
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@ -0,0 +1,26 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <err.h>
int
main(void)
{
warnx("%d. warnx", 1);
warn("%d. warn", 2);
err(0, "%d. err", 3);
return 1;
}

23
have/getprogname.c Normal file
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@ -0,0 +1,23 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
int
main(void)
{
return getprogname() == NULL;
}

23
have/libtls.c Normal file
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@ -0,0 +1,23 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <tls.h>
int
main(void)
{
return tls_init() != 0;
}

21
have/noop.c Normal file
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@ -0,0 +1,21 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
int
main(void)
{
return 0;
}

25
have/strlcat.c Normal file
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@ -0,0 +1,25 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <string.h>
int
main(void)
{
char buf[3] = "a";
return ! (strlcat(buf, "b", sizeof(buf)) == 2 &&
buf[0] == 'a' && buf[1] == 'b' && buf[2] == '\0');
}

25
have/strlcpy.c Normal file
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@ -0,0 +1,25 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <string.h>
int
main(void)
{
char buf[2] = "";
return ! (strlcpy(buf, "a", sizeof(buf)) == 1 &&
buf[0] == 'a' && buf[1] == '\0');
}

46
have/vasprintf.c Normal file
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@ -0,0 +1,46 @@
/*
* Copyright (c) 2021 Omar Polo <op@omarpolo.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
static int testfn(char **, const char*, ...);
static int
testfn(char **ret, const char *fmt, ...)
{
va_list ap;
int irc;
va_start(ap, fmt);
irc = vasprintf(ret, fmt, ap);
va_end(ap);
return irc;
}
int
main(void)
{
char *ret;
if (testfn(&ret, "%s.", "Text") != 5)
return 1;
if (strcmp(ret, "Text."))
return 2;
return 0;
}