idn.c

Bug Summary

File:	src/idn.c
Warning:	line 201, column 11 Potential leak of memory pointed to by 'line'
Annotated Source Code

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clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name idn.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-eagerly-assume -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -mrelocation-model static -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer -resource-dir /usr/lib/llvm-7/lib/clang/7.0.1 -D HAVE_CONFIG_H -I . -I .. -I ../lib -I ../lib -I ../gl -I ../gl -D LOCALEDIR="/usr/local/share/locale" -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-7/lib/clang/7.0.1/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir /home/jas/src/libidn/src -ferror-limit 19 -fmessage-length 0 -fobjc-runtime=gcc -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-output=html -o /home/jas/src/libidn/scan.tmp/2020-07-22-175430-13732-1 -x c idn.c -faddrsig
1/* idn.c --- Command line interface to libidn.
2 * Copyright (C) 2003-2020 Simon Josefsson
3 *
4 * This file is part of GNU Libidn.
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18 *
19 */
20 
21#ifdef HAVE_CONFIG_H1
22# include "config.h"
23#endif
24 
25#include <stdio.h>
26#include <stdlib.h>
27#include <string.h>
28#include <errno(*__errno_location ()).h>
29#include <locale.h>
30#include <unistd.h>
31 
32/* Gnulib headers. */
33#include "error.h"
34#include "gettext.h"
35#define _(String)dcgettext ("libidn", String, 5) dgettext (PACKAGE, String)dcgettext ("libidn", String, 5)
36#define N_(String)String gettext_noop (String)String
37#include "progname.h"
38#include "version-etc.h"
39 
40/* Libidn headers. */
41#include <stringprep.h>
42#include <punycode.h>
43#include <idna.h>
44#ifdef WITH_TLD1
45# include <tld.h>
46#endif
47 
48#include "idn_cmd.h"
49 
50#define GREETING"Copyright 2002-2015 Simon Josefsson.\n" "GNU Libidn is free software with ABSOLUTELY NO WARRANTY.  For more\n"
 "information about these matters, see <http://www.gnu.org/licenses/>.\n" \
51  "Copyright 2002-2015 Simon Josefsson.\n"				 \
52  "GNU Libidn is free software with ABSOLUTELY NO WARRANTY.  For more\n" \
53  "information about these matters, see <http://www.gnu.org/licenses/>.\n"
54 
55const char version_etc_copyright[] =
56  /* Do *not* mark this string for translation.  %s is a copyright
57     symbol suitable for this locale, and %d is the copyright
58     year.  */
59  "Copyright %s %d Simon Josefsson.";
60 
61static void
62usage (int status)
63{
64  if (status != EXIT_SUCCESS0)
65    fprintf (stderrstderr, _("Try '%s --help' for more information.\n")dcgettext ("libidn", "Try '%s --help' for more information.\n"
, 5),
66	     program_name);
67  else
68    {
69      printf (_("\dcgettext ("libidn", "Usage: %s [OPTION]... [STRINGS]...\n", 5
)
70Usage: %s [OPTION]... [STRINGS]...\n\dcgettext ("libidn", "Usage: %s [OPTION]... [STRINGS]...\n", 5
)
71")dcgettext ("libidn", "Usage: %s [OPTION]... [STRINGS]...\n", 5
), program_name);
72      fputs (_("\dcgettext ("libidn", "Internationalized Domain Name (IDN) convert STRINGS, or standard input.\n\n"
, 5)
73Internationalized Domain Name (IDN) convert STRINGS, or standard input.\n\dcgettext ("libidn", "Internationalized Domain Name (IDN) convert STRINGS, or standard input.\n\n"
, 5)
74\n\dcgettext ("libidn", "Internationalized Domain Name (IDN) convert STRINGS, or standard input.\n\n"
, 5)
75")dcgettext ("libidn", "Internationalized Domain Name (IDN) convert STRINGS, or standard input.\n\n"
, 5), stdoutstdout);
76      fputs (_("\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
77Command line interface to the internationalized domain name library.\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
78\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
79All strings are expected to be encoded in the preferred charset used\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
80by your locale.  Use --debug to find out what this charset is.  You\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
81can override the charset used by setting environment variable CHARSET.\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
82\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
83To process a string that starts with '-', for example '-foo', use '--'\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
84to signal the end of parameters, as in: idn --quiet -a -- -foo\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
85\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
86Mandatory arguments to long options are mandatory for short options too.\n\dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5)
87")dcgettext ("libidn", "Command line interface to the internationalized domain name library.\n\nAll strings are expected to be encoded in the preferred charset used\nby your locale.  Use --debug to find out what this charset is.  You\ncan override the charset used by setting environment variable CHARSET.\n\nTo process a string that starts with '-', for example '-foo', use '--'\nto signal the end of parameters, as in: idn --quiet -a -- -foo\n\nMandatory arguments to long options are mandatory for short options too.\n"
, 5), stdoutstdout);
88      fputs (_("\dcgettext ("libidn", "  -h, --help               Print help and exit\n  -V, --version            Print version and exit\n"
, 5)
89  -h, --help               Print help and exit\n\dcgettext ("libidn", "  -h, --help               Print help and exit\n  -V, --version            Print version and exit\n"
, 5)
90  -V, --version            Print version and exit\n\dcgettext ("libidn", "  -h, --help               Print help and exit\n  -V, --version            Print version and exit\n"
, 5)
91")dcgettext ("libidn", "  -h, --help               Print help and exit\n  -V, --version            Print version and exit\n"
, 5), stdoutstdout);
92      fputs (_("\dcgettext ("libidn", "  -s, --stringprep         Prepare string according to nameprep profile\n  -d, --punycode-decode    Decode Punycode\n  -e, --punycode-encode    Encode Punycode\n  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)\n  -u, --idna-to-unicode    Convert from ACE according to IDNA\n"
, 5)
93  -s, --stringprep         Prepare string according to nameprep profile\n\dcgettext ("libidn", "  -s, --stringprep         Prepare string according to nameprep profile\n  -d, --punycode-decode    Decode Punycode\n  -e, --punycode-encode    Encode Punycode\n  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)\n  -u, --idna-to-unicode    Convert from ACE according to IDNA\n"
, 5)
94  -d, --punycode-decode    Decode Punycode\n\dcgettext ("libidn", "  -s, --stringprep         Prepare string according to nameprep profile\n  -d, --punycode-decode    Decode Punycode\n  -e, --punycode-encode    Encode Punycode\n  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)\n  -u, --idna-to-unicode    Convert from ACE according to IDNA\n"
, 5)
95  -e, --punycode-encode    Encode Punycode\n\dcgettext ("libidn", "  -s, --stringprep         Prepare string according to nameprep profile\n  -d, --punycode-decode    Decode Punycode\n  -e, --punycode-encode    Encode Punycode\n  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)\n  -u, --idna-to-unicode    Convert from ACE according to IDNA\n"
, 5)
96  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)\n\dcgettext ("libidn", "  -s, --stringprep         Prepare string according to nameprep profile\n  -d, --punycode-decode    Decode Punycode\n  -e, --punycode-encode    Encode Punycode\n  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)\n  -u, --idna-to-unicode    Convert from ACE according to IDNA\n"
, 5)
97  -u, --idna-to-unicode    Convert from ACE according to IDNA\n\dcgettext ("libidn", "  -s, --stringprep         Prepare string according to nameprep profile\n  -d, --punycode-decode    Decode Punycode\n  -e, --punycode-encode    Encode Punycode\n  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)\n  -u, --idna-to-unicode    Convert from ACE according to IDNA\n"
, 5)
98")dcgettext ("libidn", "  -s, --stringprep         Prepare string according to nameprep profile\n  -d, --punycode-decode    Decode Punycode\n  -e, --punycode-encode    Encode Punycode\n  -a, --idna-to-ascii      Convert to ACE according to IDNA (default mode)\n  -u, --idna-to-unicode    Convert from ACE according to IDNA\n"
, 5), stdoutstdout);
99      fputs (_("\dcgettext ("libidn", "      --allow-unassigned   Toggle IDNA AllowUnassigned flag (default off)\n      --usestd3asciirules  Toggle IDNA UseSTD3ASCIIRules flag (default off)\n"
, 5)
100      --allow-unassigned   Toggle IDNA AllowUnassigned flag (default off)\n\dcgettext ("libidn", "      --allow-unassigned   Toggle IDNA AllowUnassigned flag (default off)\n      --usestd3asciirules  Toggle IDNA UseSTD3ASCIIRules flag (default off)\n"
, 5)
101      --usestd3asciirules  Toggle IDNA UseSTD3ASCIIRules flag (default off)\n\dcgettext ("libidn", "      --allow-unassigned   Toggle IDNA AllowUnassigned flag (default off)\n      --usestd3asciirules  Toggle IDNA UseSTD3ASCIIRules flag (default off)\n"
, 5)
102")dcgettext ("libidn", "      --allow-unassigned   Toggle IDNA AllowUnassigned flag (default off)\n      --usestd3asciirules  Toggle IDNA UseSTD3ASCIIRules flag (default off)\n"
, 5), stdoutstdout);
103      fputs (_("\dcgettext ("libidn", "      --no-tld             Don't check string for TLD specific rules\n                             Only for --idna-to-ascii and --idna-to-unicode\n"
, 5)
104      --no-tld             Don't check string for TLD specific rules\n\dcgettext ("libidn", "      --no-tld             Don't check string for TLD specific rules\n                             Only for --idna-to-ascii and --idna-to-unicode\n"
, 5)
105                             Only for --idna-to-ascii and --idna-to-unicode\n\dcgettext ("libidn", "      --no-tld             Don't check string for TLD specific rules\n                             Only for --idna-to-ascii and --idna-to-unicode\n"
, 5)
106")dcgettext ("libidn", "      --no-tld             Don't check string for TLD specific rules\n                             Only for --idna-to-ascii and --idna-to-unicode\n"
, 5), stdoutstdout);
107      fputs (_("\dcgettext ("libidn", "  -n, --nfkc               Normalize string according to Unicode v3.2 NFKC\n"
, 5)
108  -n, --nfkc               Normalize string according to Unicode v3.2 NFKC\n\dcgettext ("libidn", "  -n, --nfkc               Normalize string according to Unicode v3.2 NFKC\n"
, 5)
109")dcgettext ("libidn", "  -n, --nfkc               Normalize string according to Unicode v3.2 NFKC\n"
, 5), stdoutstdout);
110      fputs (_("\dcgettext ("libidn", "  -p, --profile=STRING     Use specified stringprep profile instead\n                             Valid stringprep profiles: Nameprep\n                             iSCSI Nodeprep Resourceprep trace SASLprep\n"
, 5)
111  -p, --profile=STRING     Use specified stringprep profile instead\n\dcgettext ("libidn", "  -p, --profile=STRING     Use specified stringprep profile instead\n                             Valid stringprep profiles: Nameprep\n                             iSCSI Nodeprep Resourceprep trace SASLprep\n"
, 5)
112                             Valid stringprep profiles: Nameprep\n\dcgettext ("libidn", "  -p, --profile=STRING     Use specified stringprep profile instead\n                             Valid stringprep profiles: Nameprep\n                             iSCSI Nodeprep Resourceprep trace SASLprep\n"
, 5)
113                             iSCSI Nodeprep Resourceprep trace SASLprep\n\dcgettext ("libidn", "  -p, --profile=STRING     Use specified stringprep profile instead\n                             Valid stringprep profiles: Nameprep\n                             iSCSI Nodeprep Resourceprep trace SASLprep\n"
, 5)
114")dcgettext ("libidn", "  -p, --profile=STRING     Use specified stringprep profile instead\n                             Valid stringprep profiles: Nameprep\n                             iSCSI Nodeprep Resourceprep trace SASLprep\n"
, 5), stdoutstdout);
115      fputs (_("\dcgettext ("libidn", "      --debug              Print debugging information\n      --quiet              Silent operation\n"
, 5)
116      --debug              Print debugging information\n\dcgettext ("libidn", "      --debug              Print debugging information\n      --quiet              Silent operation\n"
, 5)
117      --quiet              Silent operation\n\dcgettext ("libidn", "      --debug              Print debugging information\n      --quiet              Silent operation\n"
, 5)
118")dcgettext ("libidn", "      --debug              Print debugging information\n      --quiet              Silent operation\n"
, 5), stdoutstdout);
119      emit_bug_reporting_address ();
120    }
121  exit (status);
122}
123 
124int
125main (int argc, char *argv[])
126{
127  struct gengetopt_args_info args_info;
128  char *line = NULL((void*)0);
129  size_t linelen = 0;
130  char *p, *r;
131  uint32_t *q;
132  unsigned cmdn = 0;
133  int rc;
134 
135  setlocale (LC_ALL6, "");
136  set_program_name (argv[0]);
137  bindtextdomain (PACKAGE"libidn", LOCALEDIR"/usr/local/share/locale");
138  textdomain (PACKAGE"libidn");
139 
140  if (cmdline_parser (argc, argv, &args_info) != 0)
1
Assuming the condition is false→
2
←
Taking false branch→
141    usage (EXIT_FAILURE1);
142 
143  if (args_info.version_given)
3
←
Assuming the condition is false→
4
←
Taking false branch→
144    {
145      version_etc (stdoutstdout, "idn", PACKAGE_NAME"GNU Libidn", VERSION"1.36",
146		   "Simon Josefsson", (char *) NULL((void*)0));
147      return EXIT_SUCCESS0;
148    }
149 
150  if (args_info.help_given)
5
←
Assuming the condition is false→
6
←
Taking false branch→
151    usage (EXIT_SUCCESS0);
152 
153  /* Backwards compatibility: -n has always been the documented short
154     form for --nfkc but, before v1.10, -k was the implemented short
155     form.  We now accept both to avoid documentation changes.  */
156  if (args_info.hidden_nfkc_given)
7
←
Assuming the condition is false→
8
←
Taking false branch→
157    args_info.nfkc_given = 1;
158 
159  if (!args_info.stringprep_given &&
9
←
Assuming the condition is true→
160      !args_info.punycode_encode_given && !args_info.punycode_decode_given &&
10
←
Assuming the condition is false→
161      !args_info.idna_to_ascii_given && !args_info.idna_to_unicode_given &&
162      !args_info.nfkc_given)
163    args_info.idna_to_ascii_given = 1;
164 
165  if ((args_info.stringprep_given ? 1 : 0) +
11
←
'?' condition is false→
21
←
Taking false branch→
166      (args_info.punycode_encode_given ? 1 : 0) +
12
←
'?' condition is true→
167      (args_info.punycode_decode_given ? 1 : 0) +
13
←
Assuming the condition is false→
14
←
'?' condition is false→
168      (args_info.idna_to_ascii_given ? 1 : 0) +
15
←
Assuming the condition is false→
16
←
'?' condition is false→
169      (args_info.idna_to_unicode_given ? 1 : 0) +
17
←
Assuming the condition is false→
18
←
'?' condition is false→
170      (args_info.nfkc_given ? 1 : 0) != 1)
19
←
Assuming the condition is false→
20
←
'?' condition is false→
171    {
172      error (0, 0,
173	     _("only one of -s, -e, -d, -a, -u or -n can be specified")dcgettext ("libidn", "only one of -s, -e, -d, -a, -u or -n can be specified"
, 5));
174      usage (EXIT_FAILURE1);
175    }
176 
177  if (!args_info.quiet_given
22
←
Assuming the condition is false→
178      && args_info.inputs_num == 0 && isatty (fileno (stdinstdin)))
179    fprintf (stderrstderr, "%s %s\n" GREETING"Copyright 2002-2015 Simon Josefsson.\n" "GNU Libidn is free software with ABSOLUTELY NO WARRANTY.  For more\n"
 "information about these matters, see <http://www.gnu.org/licenses/>.\n", PACKAGE"libidn", VERSION"1.36");
180 
181  if (args_info.debug_given)
23
←
Assuming the condition is false→
24
←
Taking false branch→
182    fprintf (stderrstderr, _("Charset: %s\n")dcgettext ("libidn", "Charset: %s\n", 5), stringprep_locale_charset ());
183 
184  if (!args_info.quiet_given
185      && args_info.inputs_num == 0 && isatty (fileno (stdinstdin)))
186    fprintf (stderrstderr, _("Type each input string on a line by itself, "dcgettext ("libidn", "Type each input string on a line by itself, "
 "terminated by a newline character.\n", 5)
187		       "terminated by a newline character.\n")dcgettext ("libidn", "Type each input string on a line by itself, "
 "terminated by a newline character.\n", 5));
188 
189  do
48
←
Loop condition is true. Execution continues on line 191→
190    {
191      if (cmdn < args_info.inputs_num)
25
←
Assuming the condition is true→
26
←
Taking true branch→
49
←
Taking true branch→
192	line = strdup (args_info.inputs[cmdn++]);
27
←
Memory is allocated→
193      else if (getline (&line, &linelen, stdinstdin) == -1)
194	{
195	  if (feof (stdinstdin))
196	    break;
197 
198	  error (EXIT_FAILURE1, errno(*__errno_location ()), _("input error")dcgettext ("libidn", "input error", 5));
199	}
200 
201      if (strlen (line) > 0)
28
←
Assuming the condition is false→
29
←
Taking false branch→
50
←
Potential leak of memory pointed to by 'line'
202	if (line[strlen (line) - 1] == '\n')
203	  line[strlen (line) - 1] = '\0';
204 
205      if (args_info.stringprep_given)
30
←
Taking false branch→
206	{
207	  p = stringprep_locale_to_utf8 (line);
208	  if (!p)
209	    error (EXIT_FAILURE1, 0, _("could not convert from %s to UTF-8")dcgettext ("libidn", "could not convert from %s to UTF-8", 5),
210		   stringprep_locale_charset ());
211 
212	  q = stringprep_utf8_to_ucs4 (p, -1, NULL((void*)0));
213	  if (!q)
214	    {
215	      free (p);
216	      error (EXIT_FAILURE1, 0,
217		     _("could not convert from UTF-8 to UCS-4")dcgettext ("libidn", "could not convert from UTF-8 to UCS-4",
 5));
218	    }
219 
220	  if (args_info.debug_given)
221	    {
222	      size_t i;
223	      for (i = 0; q[i]; i++)
224		fprintf (stderrstderr, "input[%lu] = U+%04x\n",
225			 (unsigned long) i, q[i]);
226	    }
227	  free (q);
228 
229	  rc = stringprep_profile (p, &r,
230				   args_info.profile_given ?
231				   args_info.profile_arg : "Nameprep", 0);
232	  free (p);
233	  if (rc != STRINGPREP_OK)
234	    error (EXIT_FAILURE1, 0, _("stringprep_profile: %s")dcgettext ("libidn", "stringprep_profile: %s", 5),
235		   stringprep_strerror (rc));
236 
237	  q = stringprep_utf8_to_ucs4 (r, -1, NULL((void*)0));
238	  if (!q)
239	    {
240	      free (r);
241	      error (EXIT_FAILURE1, 0,
242		     _("could not convert from UTF-8 to UCS-4")dcgettext ("libidn", "could not convert from UTF-8 to UCS-4",
 5));
243	    }
244 
245	  if (args_info.debug_given)
246	    {
247	      size_t i;
248	      for (i = 0; q[i]; i++)
249		fprintf (stderrstderr, "output[%lu] = U+%04x\n",
250			 (unsigned long) i, q[i]);
251	    }
252	  free (q);
253 
254	  p = stringprep_utf8_to_locale (r);
255	  free (r);
256	  if (!p)
257	    error (EXIT_FAILURE1, 0, _("could not convert from UTF-8 to %s")dcgettext ("libidn", "could not convert from UTF-8 to %s", 5),
258		   stringprep_locale_charset ());
259 
260	  fprintf (stdoutstdout, "%s\n", p);
261 
262	  free (p);
263	}
264 
265      if (args_info.punycode_encode_given)
31
←
Taking true branch→
266	{
267	  char encbuf[BUFSIZ8192];
268	  size_t len, len2;
269 
270	  p = stringprep_locale_to_utf8 (line);
271	  if (!p)
32
←
Assuming 'p' is non-null→
33
←
Taking false branch→
272	    error (EXIT_FAILURE1, 0, _("could not convert from %s to UTF-8")dcgettext ("libidn", "could not convert from %s to UTF-8", 5),
273		   stringprep_locale_charset ());
274 
275	  q = stringprep_utf8_to_ucs4 (p, -1, &len);
276	  free (p);
277	  if (!q)
34
←
Assuming 'q' is non-null→
35
←
Taking false branch→
278	    error (EXIT_FAILURE1, 0,
279		   _("could not convert from UTF-8 to UCS-4")dcgettext ("libidn", "could not convert from UTF-8 to UCS-4",
 5));
280 
281	  if (args_info.debug_given)
36
←
Taking false branch→
282	    {
283	      size_t i;
284	      for (i = 0; i < len; i++)
285		fprintf (stderrstderr, "input[%lu] = U+%04x\n",
286			 (unsigned long) i, q[i]);
287	    }
288 
289	  len2 = BUFSIZ8192 - 1;
290	  rc = punycode_encode (len, q, NULL((void*)0), &len2, encbuf);
291	  free (q);
292	  if (rc != PUNYCODE_SUCCESS)
37
←
Assuming 'rc' is equal to PUNYCODE_SUCCESS→
38
←
Taking false branch→
293	    error (EXIT_FAILURE1, 0, _("punycode_encode: %s")dcgettext ("libidn", "punycode_encode: %s", 5),
294		   punycode_strerror (rc));
295 
296	  encbuf[len2] = '\0';
297 
298	  p = stringprep_utf8_to_locale (encbuf);
299	  if (!p)
39
←
Assuming 'p' is non-null→
40
←
Taking false branch→
300	    error (EXIT_FAILURE1, 0, _("could not convert from UTF-8 to %s")dcgettext ("libidn", "could not convert from UTF-8 to %s", 5),
301		   stringprep_locale_charset ());
302 
303	  fprintf (stdoutstdout, "%s\n", p);
304 
305	  free (p);
306	}
307 
308      if (args_info.punycode_decode_given)
41
←
Taking false branch→
309	{
310	  size_t len;
311 
312	  len = BUFSIZ8192;
313	  q = (uint32_t *) malloc (len * sizeof (q[0]));
314	  if (!q)
315	    error (EXIT_FAILURE1, ENOMEM12, N_("malloc")"malloc");
316 
317	  rc = punycode_decode (strlen (line), line, &len, q, NULL((void*)0));
318	  if (rc != PUNYCODE_SUCCESS)
319	    {
320	      free (q);
321	      error (EXIT_FAILURE1, 0, _("punycode_decode: %s")dcgettext ("libidn", "punycode_decode: %s", 5),
322		     punycode_strerror (rc));
323	    }
324 
325	  if (args_info.debug_given)
326	    {
327	      size_t i;
328	      for (i = 0; i < len; i++)
329		fprintf (stderrstderr, "output[%lu] = U+%04x\n",
330			 (unsigned long) i, q[i]);
331	    }
332 
333	  q[len] = 0;
334	  r = stringprep_ucs4_to_utf8 (q, -1, NULL((void*)0), NULL((void*)0));
335	  free (q);
336	  if (!r)
337	    error (EXIT_FAILURE1, 0,
338		   _("could not convert from UCS-4 to UTF-8")dcgettext ("libidn", "could not convert from UCS-4 to UTF-8",
 5));
339 
340	  p = stringprep_utf8_to_locale (r);
341	  free (r);
342	  if (!r)
343	    error (EXIT_FAILURE1, 0, _("could not convert from UTF-8 to %s")dcgettext ("libidn", "could not convert from UTF-8 to %s", 5),
344		   stringprep_locale_charset ());
345 
346	  fprintf (stdoutstdout, "%s\n", p);
347 
348	  free (p);
349	}
350 
351      if (args_info.idna_to_ascii_given)
42
←
Taking false branch→
352	{
353	  p = stringprep_locale_to_utf8 (line);
354	  if (!p)
355	    error (EXIT_FAILURE1, 0, _("could not convert from %s to UTF-8")dcgettext ("libidn", "could not convert from %s to UTF-8", 5),
356		   stringprep_locale_charset ());
357 
358	  q = stringprep_utf8_to_ucs4 (p, -1, NULL((void*)0));
359	  free (p);
360	  if (!q)
361	    error (EXIT_FAILURE1, 0,
362		   _("could not convert from UCS-4 to UTF-8")dcgettext ("libidn", "could not convert from UCS-4 to UTF-8",
 5));
363 
364	  if (args_info.debug_given)
365	    {
366	      size_t i;
367	      for (i = 0; q[i]; i++)
368		fprintf (stderrstderr, "input[%lu] = U+%04x\n",
369			 (unsigned long) i, q[i]);
370	    }
371 
372	  rc = idna_to_ascii_4z (q, &p,
373				 (args_info.allow_unassigned_given ?
374				  IDNA_ALLOW_UNASSIGNED : 0) |
375				 (args_info.usestd3asciirules_given ?
376				  IDNA_USE_STD3_ASCII_RULES : 0));
377	  free (q);
378	  if (rc != IDNA_SUCCESS)
379	    error (EXIT_FAILURE1, 0, _("idna_to_ascii_4z: %s")dcgettext ("libidn", "idna_to_ascii_4z: %s", 5),
380		   idna_strerror (rc));
381 
382#ifdef WITH_TLD1
383	  if (args_info.tld_flag && !args_info.no_tld_flag)
384	    {
385	      size_t errpos;
386 
387	      rc = idna_to_unicode_8z4z (p, &q,
388					 (args_info.allow_unassigned_given ?
389					  IDNA_ALLOW_UNASSIGNED : 0) |
390					 (args_info.usestd3asciirules_given ?
391					  IDNA_USE_STD3_ASCII_RULES : 0));
392	      if (rc != IDNA_SUCCESS)
393		error (EXIT_FAILURE1, 0, _("idna_to_unicode_8z4z (TLD): %s")dcgettext ("libidn", "idna_to_unicode_8z4z (TLD): %s", 5),
394		       idna_strerror (rc));
395 
396	      if (args_info.debug_given)
397		{
398		  size_t i;
399		  for (i = 0; q[i]; i++)
400		    fprintf (stderrstderr, "tld[%lu] = U+%04x\n",
401			     (unsigned long) i, q[i]);
402		}
403 
404	      rc = tld_check_4z (q, &errpos, NULL((void*)0));
405	      free (q);
406	      if (rc == TLD_INVALID)
407		error (EXIT_FAILURE1, 0, _("tld_check_4z (position %lu): %s")dcgettext ("libidn", "tld_check_4z (position %lu): %s", 5),
408		       (unsigned long) errpos, tld_strerror (rc));
409	      if (rc != TLD_SUCCESS)
410		error (EXIT_FAILURE1, 0, _("tld_check_4z: %s")dcgettext ("libidn", "tld_check_4z: %s", 5),
411		       tld_strerror (rc));
412	    }
413#endif
414 
415	  if (args_info.debug_given)
416	    {
417	      size_t i;
418	      for (i = 0; p[i]; i++)
419		fprintf (stderrstderr, "output[%lu] = U+%04x\n",
420			 (unsigned long) i, (unsigned) p[i]);
421	    }
422 
423	  fprintf (stdoutstdout, "%s\n", p);
424 
425	  free (p);
426	}
427 
428      if (args_info.idna_to_unicode_given)
43
←
Taking false branch→
429	{
430	  p = stringprep_locale_to_utf8 (line);
431	  if (!p)
432	    error (EXIT_FAILURE1, 0, _("could not convert from %s to UTF-8")dcgettext ("libidn", "could not convert from %s to UTF-8", 5),
433		   stringprep_locale_charset ());
434 
435	  q = stringprep_utf8_to_ucs4 (p, -1, NULL((void*)0));
436	  if (!q)
437	    {
438	      free (p);
439	      error (EXIT_FAILURE1, 0,
440		     _("could not convert from UCS-4 to UTF-8")dcgettext ("libidn", "could not convert from UCS-4 to UTF-8",
 5));
441	    }
442 
443	  if (args_info.debug_given)
444	    {
445	      size_t i;
446	      for (i = 0; q[i]; i++)
447		fprintf (stderrstderr, "input[%lu] = U+%04x\n",
448			 (unsigned long) i, q[i]);
449	    }
450	  free (q);
451 
452	  rc = idna_to_unicode_8z4z (p, &q,
453				     (args_info.allow_unassigned_given ?
454				      IDNA_ALLOW_UNASSIGNED : 0) |
455				     (args_info.usestd3asciirules_given ?
456				      IDNA_USE_STD3_ASCII_RULES : 0));
457	  free (p);
458	  if (rc != IDNA_SUCCESS)
459	    error (EXIT_FAILURE1, 0, _("idna_to_unicode_8z4z: %s")dcgettext ("libidn", "idna_to_unicode_8z4z: %s", 5),
460		   idna_strerror (rc));
461 
462	  if (args_info.debug_given)
463	    {
464	      size_t i;
465	      for (i = 0; q[i]; i++)
466		fprintf (stderrstderr, "output[%lu] = U+%04x\n",
467			 (unsigned long) i, q[i]);
468	    }
469 
470#ifdef WITH_TLD1
471	  if (args_info.tld_flag)
472	    {
473	      size_t errpos;
474 
475	      rc = tld_check_4z (q, &errpos, NULL((void*)0));
476	      if (rc == TLD_INVALID)
477		{
478		  free (q);
479		  error (EXIT_FAILURE1, 0,
480			 _("tld_check_4z (position %lu): %s")dcgettext ("libidn", "tld_check_4z (position %lu): %s", 5),
481			 (unsigned long) errpos, tld_strerror (rc));
482		}
483	      if (rc != TLD_SUCCESS)
484		{
485		  free (q);
486		  error (EXIT_FAILURE1, 0, _("tld_check_4z: %s")dcgettext ("libidn", "tld_check_4z: %s", 5),
487			 tld_strerror (rc));
488		}
489	    }
490#endif
491 
492	  r = stringprep_ucs4_to_utf8 (q, -1, NULL((void*)0), NULL((void*)0));
493	  free (q);
494	  if (!r)
495	    error (EXIT_FAILURE1, 0,
496		   _("could not convert from UTF-8 to UCS-4")dcgettext ("libidn", "could not convert from UTF-8 to UCS-4",
 5));
497 
498	  p = stringprep_utf8_to_locale (r);
499	  free (r);
500	  if (!p)
501	    error (EXIT_FAILURE1, 0, _("could not convert from UTF-8 to %s")dcgettext ("libidn", "could not convert from UTF-8 to %s", 5),
502		   stringprep_locale_charset ());
503 
504	  fprintf (stdoutstdout, "%s\n", p);
505 
506	  free (p);
507	}
508 
509      if (args_info.nfkc_given)
44
←
Taking false branch→
510	{
511	  p = stringprep_locale_to_utf8 (line);
512	  if (!p)
513	    error (EXIT_FAILURE1, 0, _("could not convert from %s to UTF-8")dcgettext ("libidn", "could not convert from %s to UTF-8", 5),
514		   stringprep_locale_charset ());
515 
516	  if (args_info.debug_given)
517	    {
518	      size_t i;
519 
520	      q = stringprep_utf8_to_ucs4 (p, -1, NULL((void*)0));
521	      if (!q)
522		{
523		  free (p);
524		  error (EXIT_FAILURE1, 0,
525			 _("could not convert from UTF-8 to UCS-4")dcgettext ("libidn", "could not convert from UTF-8 to UCS-4",
 5));
526		}
527 
528	      for (i = 0; q[i]; i++)
529		fprintf (stderrstderr, "input[%lu] = U+%04x\n",
530			 (unsigned long) i, q[i]);
531 
532	      free (q);
533	    }
534 
535	  r = stringprep_utf8_nfkc_normalize (p, -1);
536	  free (p);
537	  if (!r)
538	    error (EXIT_FAILURE1, 0, _("could not do NFKC normalization")dcgettext ("libidn", "could not do NFKC normalization", 5));
539 
540	  if (args_info.debug_given)
541	    {
542	      size_t i;
543 
544	      q = stringprep_utf8_to_ucs4 (r, -1, NULL((void*)0));
545	      if (!q)
546		{
547		  free (r);
548		  error (EXIT_FAILURE1, 0,
549			 _("could not convert from UTF-8 to UCS-4")dcgettext ("libidn", "could not convert from UTF-8 to UCS-4",
 5));
550		}
551 
552	      for (i = 0; q[i]; i++)
553		fprintf (stderrstderr, "output[%lu] = U+%04x\n",
554			 (unsigned long) i, q[i]);
555 
556	      free (q);
557	    }
558 
559	  p = stringprep_utf8_to_locale (r);
560	  free (r);
561	  if (!p)
562	    error (EXIT_FAILURE1, 0, _("could not convert from UTF-8 to %s")dcgettext ("libidn", "could not convert from UTF-8 to %s", 5),
563		   stringprep_locale_charset ());
564 
565	  fprintf (stdoutstdout, "%s\n", p);
566 
567	  free (p);
568	}
569 
570      fflush (stdoutstdout);
571    }
572  while (!feof (stdinstdin) && !ferror (stdinstdin) && (args_info.inputs_num == 0 ||
45
←
Assuming the condition is true→
46
←
Assuming the condition is true→
573					      cmdn < args_info.inputs_num));
47
←
Assuming the condition is true→
574 
575  free (line);
576 
577  return EXIT_SUCCESS0;
578}