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/* t-printf.c - Check the estream printf fucntions.
* Copyright (C) 2013 g10 Code GmbH
*
* This file is part of libgpg-error.
*
* libgpg-error is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* libgpg-error is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
/* Note that these tests check against glibc behaviour. On non glibc
systems expect non matching return codes in some border cases. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <locale.h>
#define PGM "t-printf"
#include "t-common.h"
static char *one_test_buf1;
static int one_test_rc1;
/* Read all data from STREAM into a new malloced buffer and return
* that buffer. The buffer is always 0 terminated. Either returns a
* string or dies. The stream will be trunctaed to zero. */
static char *
stream_to_string (gpgrt_stream_t stream)
{
#define NCHUNK 1024
char *buffer;
size_t bufsize, buflen;
size_t nread;
gpgrt_rewind (stream);
buffer = NULL;
buflen = bufsize = 0;
do
{
bufsize += NCHUNK;
buffer = realloc (buffer, bufsize+1);
if (!buffer)
die ("malloc failed at line %d\n", __LINE__);
nread = gpgrt_fread (buffer + buflen, 1, NCHUNK, stream);
if (nread < NCHUNK && gpgrt_ferror (stream))
die ("fread failed at line %d: %s\n", __LINE__, strerror (errno));
buflen += nread;
}
while (nread == NCHUNK);
buffer[nread] = 0;
if (strlen (buffer) != buflen)
fail ("stream_to_string detected an embedded nul");
gpgrt_ftruncate (stream, 0);
return buffer;
#undef NCHUNK
}
static void
one_test_x0 (const char *format, ...)
{
va_list arg_ptr;
show ("format: ->%s<-\n", format);
errno = ENOENT; /* For the "%m" test. */
va_start (arg_ptr, format);
#ifdef HAVE_VASPRINTF
one_test_rc1 = vasprintf (&one_test_buf1, format, arg_ptr);
#else
one_test_rc1 = -1;
#endif
va_end (arg_ptr);
if (one_test_rc1 == -1)
{
fail (" sys: errno=%d (%s)\n", errno, strerror (errno));
one_test_buf1 = NULL;
}
else
show (" sys: ->%s<-\n", one_test_buf1);
}
static void
one_test_x1 (const char *format, ...)
{
int rc2;
va_list arg_ptr;
char *buf2;
errno = ENOENT;
va_start (arg_ptr, format);
rc2 = gpgrt_vasprintf (&buf2, format, arg_ptr);
va_end (arg_ptr);
if (rc2 == -1)
{
fail (" our: errno=%d (%s)\n", errno, strerror (errno));
}
else
show (" our: ->%s<-\n", buf2);
if (one_test_rc1 != -1 && rc2 != -1 && strcmp (one_test_buf1, buf2))
{
fail ("error: output does not match\n"
"format: ->%s<-\n sys: ->%s<-\n our: ->%s<-\n",
format, one_test_buf1, buf2);
}
else if ( one_test_rc1 != rc2 )
{
fail ("error: return codes are different: sys_rc=%d our_rc=%d\n",
one_test_rc1, rc2);
}
free (buf2);
}
static void
one_test_x2 (const char *format, ...)
{
va_list arg_ptr;
char *buf2;
/* Test once more using the bsprintf variant. */
errno = ENOENT;
va_start (arg_ptr, format);
buf2 = gpgrt_vbsprintf (format, arg_ptr);
va_end (arg_ptr);
if (!buf2)
{
fail (" our(2): errno=%d (%s)\n", errno, strerror (errno));
}
else if (verbose)
show (" our: ->%s<-\n", buf2);
if (one_test_rc1 != -1 && buf2 && strcmp (one_test_buf1, buf2))
{
fail ("error: output does not match\n"
"format(2): ->%s<-\n sys: ->%s<-\n our: ->%s<-\n",
format, one_test_buf1, buf2);
}
es_free (buf2);
free (one_test_buf1);
one_test_buf1 = NULL;
}
#define one_test_0(a) \
one_test_x0 (a); \
one_test_x1 (a); \
one_test_x2 (a)
#define one_test_1(a, b) \
one_test_x0 (a, b); \
one_test_x1 (a, b); \
one_test_x2 (a, b)
#define one_test_2(a, b, c) \
one_test_x0 (a, b, c); \
one_test_x1 (a, b, c); \
one_test_x2 (a, b, c)
#define one_test_3(a, b, c, d) \
one_test_x0 (a, b, c, d); \
one_test_x1 (a, b, c, d); \
one_test_x2 (a, b, c, d)
static void
run_tests (void)
{
#ifndef HAVE_VASPRINTF
/* We do not have a system vasprintf. */
show ("run-tests: disabled due to missing vasprintf.\n");
#else /*HAVE_VASPRINTF */
/*one_test ("%d %% %'d", 17, 19681977);*/
one_test_2 ("%d %% %d", 17, 768114563);
one_test_2 ("%d %% %d", 17, -768114563);
/* Checking thousands is not easy because it depends on the locale. */
/* one_test_1 ("%'d", 768114563); */
one_test_1 ("%d", 17);
one_test_1 ("%4d", 17);
one_test_1 ("%40d", 17);
one_test_1 ("%-d", 17);
one_test_1 ("%-4d", 17);
one_test_1 ("%-140d", 17);
one_test_1 ("%d", -17);
one_test_1 ("%4d", -17);
one_test_1 ("%40d", -17);
one_test_1 ("%-d", -17);
one_test_1 ("%-4d", -17);
one_test_1 ("%-40d", -17);
one_test_1 ("%+4d", 17);
one_test_1 ("%+4d", -17);
one_test_1 ("%-+4d", 17);
one_test_1 ("%-+4d", -17);
one_test_1 ("% 4d", 17);
one_test_1 ("% 4d", -17);
one_test_1 ("%- +4d", 17);
one_test_1 ("%- +4d", -17);
one_test_1 ("%.4d", 17);
one_test_1 ("%.0d", 17);
one_test_1 ("%.0d", 0);
one_test_1 ("%.4d", -17);
one_test_1 ("%.0d", -17);
one_test_1 ("%6.4d", 17);
one_test_1 ("%6.4d", -17);
one_test_1 ("%6.0d", 0);
one_test_1 ("%4.6d", 17);
one_test_1 ("%4.6d", -17);
one_test_1 ("% 4.6d", 17);
one_test_1 ("% 6.0d", 0);
one_test_1 ("%.4d", 17);
one_test_1 ("%04d", 17);
one_test_1 ("%.4d", -17);
one_test_1 ("%04d", -17);
one_test_1 ("%0.d", 0);
one_test_2 ("%*d", 7, 42);
one_test_2 ("%*d", -7, 42);
one_test_2 ("%.*d", 7, 42);
one_test_2 ("%.*d", -7, 42);
one_test_3 ("%*.*d", 10, 7, 42);
one_test_3 ("%*.*d", 10, -7, 42);
one_test_3 ("%*.*d", -10, 7, 42);
one_test_3 ("%*.*d", -10, -7, 42);
one_test_2 ("%*x", 7, 42);
one_test_2 ("%*x", -7, 42);
one_test_2 ("%.*x", 7, 42);
one_test_2 ("%.*x", -7, 42);
one_test_3 ("%*.*x", 10, 7, 42);
one_test_3 ("%*.*x", 10, -7, 42);
one_test_3 ("%*.*x", -10, 7, 42);
one_test_3 ("%*.*x", -10, -7, 42);
one_test_2 ("%#*x", 7, 42);
one_test_2 ("%#*x", -7, 42);
one_test_2 ("%#.*x", 7, 42);
one_test_2 ("%#.*x", -7, 42);
one_test_3 ("%#*.*x", 10, 7, 42);
one_test_3 ("%#*.*x", 10, -7, 42);
one_test_3 ("%#*.*x", -10, 7, 42);
one_test_3 ("%#*.*x", -10, -7, 42);
one_test_2 ("%*X", 7, 42);
one_test_2 ("%*X", -7, 42);
one_test_2 ("%.*X", 7, 42);
one_test_2 ("%.*X", -7, 42);
one_test_3 ("%*.*X", 10, 7, 42);
one_test_3 ("%*.*X", 10, -7, 42);
one_test_3 ("%*.*X", -10, 7, 42);
one_test_3 ("%*.*X", -10, -7, 42);
one_test_2 ("%#*X", 7, 42);
one_test_2 ("%#*X", -7, 42);
one_test_2 ("%#.*X", 7, 42);
one_test_2 ("%#.*X", -7, 42);
one_test_3 ("%#*.*X", 10, 7, 42);
one_test_3 ("%#*.*X", 10, -7, 42);
one_test_3 ("%#*.*X", -10, 7, 42);
one_test_3 ("%#*.*X", -10, -7, 42);
one_test_2 ("%*o", 7, 42);
one_test_2 ("%*o", -7, 42);
one_test_2 ("%.*o", 7, 42);
one_test_2 ("%.*o", -7, 42);
one_test_3 ("%*.*o", 10, 7, 42);
one_test_3 ("%*.*o", 10, -7, 42);
one_test_3 ("%*.*o", -10, 7, 42);
one_test_3 ("%*.*o", -10, -7, 42);
one_test_2 ("%#*o", 7, 42);
one_test_2 ("%#*o", -7, 42);
one_test_2 ("%#.*o", 7, 42);
one_test_2 ("%#.*o", -7, 42);
one_test_3 ("%#*.*o", 10, 7, 42);
one_test_3 ("%#*.*o", 10, -7, 42);
one_test_3 ("%#*.*o", -10, 7, 42);
one_test_3 ("%#*.*o", -10, -7, 42);
one_test_1 ("%s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%.0s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%.10s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%.48s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%.49s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%.50s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%.51s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%48s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%49s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%50s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%51s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("%-51s", "the quick brown fox jumps over the lazy dogs back");
one_test_1 ("/%s=", "CN");
one_test_1 ("%f", 3.1415926535);
one_test_1 ("%f", -3.1415926535);
one_test_1 ("%.10f", 3.1415926535);
one_test_1 ("%.2f", 3.1415926535);
one_test_1 ("%.1f", 3.1415926535);
one_test_1 ("%.0f", 3.1415926535);
one_test_1 ("%.20f", 3.1415926535);
one_test_1 ("%10.10f", 3.1415926535);
one_test_1 ("%10.2f", 3.1415926535);
one_test_1 ("%10.1f", 3.1415926535);
one_test_1 ("%10.0f", 3.1415926535);
one_test_1 ("%30.20f", 3.1415926535);
one_test_1 ("%10.10f", -3.1415926535);
one_test_1 ("%10.2f", -3.1415926535);
one_test_1 ("%10.1f", -3.1415926535);
one_test_1 ("%10.0f", -3.1415926535);
one_test_1 ("%30.20f", -3.1415926535);
one_test_1 ("%-10f", 3.1415926535);
one_test_1 ("%-10.10f", 3.1415926535);
one_test_1 ("%-10.2f", 3.1415926535);
one_test_1 ("%-10.1f", 3.1415926535);
one_test_1 ("%-10.0f", 3.1415926535);
one_test_1 ("%-30.20f", 3.1415926535);
one_test_1 ("%-10f", -3.1415926535);
one_test_1 ("%-10.10f", -3.1415926535);
one_test_1 ("%-10.2f", -3.1415926535);
one_test_1 ("%-10.1f", -3.1415926535);
one_test_1 ("%-10.0f", -3.1415926535);
one_test_1 ("%-30.20f", -3.1415926535);
one_test_1 ("%#.0f", 3.1415926535);
one_test_1 ("%#10.0f", 3.1415926535);
one_test_1 ("%#10.0f", -3.1415926535);
one_test_1 ("%-#10.0f", 3.1415926535);
one_test_1 ("%-#10.0f", -3.1415926535);
one_test_1 ("%e", 3.1415926535);
one_test_1 ("%g", 3.1415926535);
one_test_1 ("%a", 1.0);
one_test_1 ("%a", -1.0);
one_test_1 ("%a", 3.1415926535);
#ifdef HAVE_LONG_DOUBLE
one_test_1 ("%La", (long double)1.0);
one_test_1 ("%La", (long double)-1.0);
one_test_1 ("%La", (long double)3.1415926535);
#endif
#ifdef __GLIBC__
/* "%m" is a glibc extension so this _test_ will only work on such a
system. */
one_test_0 ("%m");
one_test_1 ("%d=%m", 17);
one_test_2 ("%2$d:%m:%1$d", 42, 17);
#endif /*__GLIBC__*/
#endif /*HAVE_VASPRINTF */
}
static void
check_snprintf (void)
{
char buffer[20];
int rc, rc2;
size_t tmplen, blen, blen2;
rc = gpgrt_snprintf (buffer, 0, "%*s", 18, "");
if (rc != 18)
printf ("rc=%d\n", rc );
rc = gpgrt_snprintf (buffer, sizeof buffer, "%*s", 18, "");
if (rc != 18)
printf ("rc=%d, strlen(buffer)=%d\n", rc, (int)strlen (buffer));
rc = gpgrt_snprintf (buffer, sizeof buffer, "%*s", 19, "");
if (rc != 19)
printf ("rc=%d, strlen(buffer)=%d\n", rc, (int)strlen (buffer));
rc = gpgrt_snprintf (buffer, sizeof buffer, "%*s", 20, "");
if (rc != 20)
printf ("rc=%d, strlen(buffer)=%d\n", rc, (int)strlen (buffer));
rc = gpgrt_snprintf (buffer, sizeof buffer, "%*s", 21, "");
if (rc != 21)
printf ("rc=%d, strlen(buffer)=%d\n", rc, (int)strlen (buffer));
for (tmplen = 0; tmplen <= sizeof buffer; tmplen++)
{
rc = gpgrt_snprintf (buffer, tmplen, "%04d%02d%02dT%02d%02d%02d",
1998, 9, 7, 16, 56, 05);
blen = strlen (buffer);
rc2 = snprintf (buffer, tmplen, "%04d%02d%02dT%02d%02d%02d",
1998, 9, 7, 16, 56, 05);
blen2 = strlen (buffer);
if (rc != rc2 || blen != blen2)
printf ("snprintf test with len %u gives %d instead of %d (%u,%u)\n",
(unsigned int)tmplen, rc, rc2,
(unsigned int)blen, (unsigned int)blen2);
}
}
struct sfstate_s
{
char *last_result;
};
static char *
string_filter (const char *string, int no, void *opaque)
{
struct sfstate_s *state = opaque;
free (state->last_result);
if (no == -1)
{
state->last_result = NULL;
return NULL;
}
if (no == 3)
state->last_result = NULL;
else
state->last_result = strdup (string? string : "[==>Niente<==]");
return state->last_result;
}
static void
check_fprintf_sf (void)
{
volatile char *nullptr = NULL; /* Avoid compiler warning. */
struct sfstate_s sfstate = {NULL};
gpgrt_stream_t stream;
const char *expect;
char *result;
stream = gpgrt_fopenmem (0, "w+b");
if (!stream)
die ("fopenmem failed at line %d\n", __LINE__);
gpgrt_fprintf_sf (stream, string_filter, &sfstate,
"%s a=%d b=%s c=%d d=%.8s null=%s\n",
nullptr, 1, "foo\x01 bar", 2,
"a longer string", nullptr);
expect = "[==>Niente<==] a=1 b=foo\x01 bar c=2 d=a longer null=(null)\n";
result = stream_to_string (stream);
if (strcmp (result, expect))
{
show ("expect: '%s'\n", expect);
show ("result: '%s'\n", result);
fail ("fprintf_sf failed at %d\n", __LINE__);
}
free (result);
gpgrt_fprintf_sf (stream, string_filter, &sfstate,
"a=%d b=%s c=%d d=%.8s e=%s\n",
1, "foo\n bar", 2, nullptr, "");
expect = "a=1 b=foo\n bar c=2 d=[==>Nien e=\n";
result = stream_to_string (stream);
if (strcmp (result, expect))
{
show ("expect: '%s'\n", expect);
show ("result: '%s'\n", result);
fail ("fprintf_sf failed at %d\n", __LINE__);
}
free (result);
gpgrt_fclose (stream);
}
int
main (int argc, char **argv)
{
int last_argc = -1;
if (argc)
{
argc--; argv++;
}
while (argc && last_argc != argc )
{
last_argc = argc;
if (!strcmp (*argv, "--help"))
{
puts (
"usage: ./" PGM " [options]\n"
"\n"
"Options:\n"
" --verbose Show what is going on\n"
" --debug Flyswatter\n"
);
exit (0);
}
if (!strcmp (*argv, "--verbose"))
{
verbose = 1;
argc--; argv++;
}
else if (!strcmp (*argv, "--debug"))
{
verbose = debug = 1;
argc--; argv++;
}
}
setlocale (LC_NUMERIC, "");
if (!gpg_error_check_version (GPG_ERROR_VERSION))
{
die ("gpg_error_check_version returned an error");
errorcount++;
}
run_tests ();
check_snprintf ();
check_fprintf_sf ();
#ifdef __GLIBC__
return !!errorcount;
#else
return 0;
#endif
}

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