OpenCoverage

utf8.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssh/src/utf8.c
Source codeSwitch to Preprocessed file
LineSourceCount
1/* $OpenBSD: utf8.c,v 1.8 2018/08/21 13:56:27 schwarze Exp $ */-
2/*-
3 * Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>-
4 *-
5 * Permission to use, copy, modify, and distribute this software for any-
6 * purpose with or without fee is hereby granted, provided that the above-
7 * copyright notice and this permission notice appear in all copies.-
8 *-
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES-
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF-
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR-
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES-
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN-
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF-
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.-
16 */-
17-
18/*-
19 * Utility functions for multibyte-character handling,-
20 * in particular to sanitize untrusted strings for terminal output.-
21 */-
22-
23#include "includes.h"-
24-
25#include <sys/types.h>-
26#ifdef HAVE_LANGINFO_H-
27# include <langinfo.h>-
28#endif-
29#include <limits.h>-
30#include <locale.h>-
31#include <stdarg.h>-
32#include <stdio.h>-
33#include <stdlib.h>-
34#include <string.h>-
35#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS)-
36# include <vis.h>-
37#endif-
38#ifdef HAVE_WCHAR_H-
39# include <wchar.h>-
40#endif-
41-
42#include "utf8.h"-
43-
44static int dangerous_locale(void);-
45static int grow_dst(char **, size_t *, size_t, char **, size_t);-
46static int vasnmprintf(char **, size_t, int *, const char *, va_list);-
47-
48-
49/*-
50 * For US-ASCII and UTF-8 encodings, we can safely recover from-
51 * encoding errors and from non-printable characters. For any-
52 * other encodings, err to the side of caution and abort parsing:-
53 * For state-dependent encodings, recovery is impossible.-
54 * For arbitrary encodings, replacement of non-printable-
55 * characters would be non-trivial and too fragile.-
56 * The comments indicate what nl_langinfo(CODESET)-
57 * returns for US-ASCII on various operating systems.-
58 */-
59-
60static int-
61dangerous_locale(void) {-
62 char *loc;-
63-
64 loc = nl_langinfo(CODESET);-
65 return strcmp(loc, "UTF-8") != 0 &&
executed 21 times by 1 test: return __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p ( loc ) && __builtin_constant_p ( "UTF-8" ) && (__s1_len = __builtin_strlen ( loc ), __s2_len = __builtin_strlen ( "UTF-8" ), (!((size_t)(const void *)(( loc ) + 1) - (size_t)(const ...= 0) { __result = (((const unsigned char *) (const char *) ( "" ))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp ( loc , "" )))); }) != 0;
Executed by:
  • test_utf8
never executed: __result = (((const unsigned char *) (const char *) ( loc ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "UTF-8" ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
__extension__ ... )))); }) != 0Description
TRUEevaluated 15 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 6 times by 1 test
Evaluated by:
  • test_utf8
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-21
66 strcmp(loc, "US-ASCII") != 0 && /* OpenBSD */
executed 21 times by 1 test: return __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p ( loc ) && __builtin_constant_p ( "UTF-8" ) && (__s1_len = __builtin_strlen ( loc ), __s2_len = __builtin_strlen ( "UTF-8" ), (!((size_t)(const void *)(( loc ) + 1) - (size_t)(const ...= 0) { __result = (((const unsigned char *) (const char *) ( "" ))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp ( loc , "" )))); }) != 0;
Executed by:
  • test_utf8
never executed: __result = (((const unsigned char *) (const char *) ( loc ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "US-ASCII" ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
__extension__ ... )))); }) != 0Description
TRUEevaluated 15 times by 1 test
Evaluated by:
  • test_utf8
FALSEnever evaluated
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-21
67 strcmp(loc, "ANSI_X3.4-1968") != 0 && /* Linux */
executed 21 times by 1 test: return __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p ( loc ) && __builtin_constant_p ( "UTF-8" ) && (__s1_len = __builtin_strlen ( loc ), __s2_len = __builtin_strlen ( "UTF-8" ), (!((size_t)(const void *)(( loc ) + 1) - (size_t)(const ...= 0) { __result = (((const unsigned char *) (const char *) ( "" ))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp ( loc , "" )))); }) != 0;
Executed by:
  • test_utf8
never executed: __result = (((const unsigned char *) (const char *) ( loc ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "ANSI_X3.4-1968" ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEevaluated 15 times by 1 test
Evaluated by:
  • test_utf8
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-21
68 strcmp(loc, "ISO8859-1") != 0 && /* AIX */
executed 21 times by 1 test: return __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p ( loc ) && __builtin_constant_p ( "UTF-8" ) && (__s1_len = __builtin_strlen ( loc ), __s2_len = __builtin_strlen ( "UTF-8" ), (!((size_t)(const void *)(( loc ) + 1) - (size_t)(const ...= 0) { __result = (((const unsigned char *) (const char *) ( "" ))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp ( loc , "" )))); }) != 0;
Executed by:
  • test_utf8
never executed: __result = (((const unsigned char *) (const char *) ( loc ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "ISO8859-1" ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-21
69 strcmp(loc, "646") != 0 && /* Solaris, NetBSD */
executed 21 times by 1 test: return __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p ( loc ) && __builtin_constant_p ( "UTF-8" ) && (__s1_len = __builtin_strlen ( loc ), __s2_len = __builtin_strlen ( "UTF-8" ), (!((size_t)(const void *)(( loc ) + 1) - (size_t)(const ...= 0) { __result = (((const unsigned char *) (const char *) ( "" ))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp ( loc , "" )))); }) != 0;
Executed by:
  • test_utf8
never executed: __result = (((const unsigned char *) (const char *) ( loc ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "646" ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-21
70 strcmp(loc, "") != 0; /* Solaris 6 */
executed 21 times by 1 test: return __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p ( loc ) && __builtin_constant_p ( "UTF-8" ) && (__s1_len = __builtin_strlen ( loc ), __s2_len = __builtin_strlen ( "UTF-8" ), (!((size_t)(const void *)(( loc ) + 1) - (size_t)(const ...= 0) { __result = (((const unsigned char *) (const char *) ( "" ))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp ( loc , "" )))); }) != 0;
Executed by:
  • test_utf8
never executed: __result = (((const unsigned char *) (const char *) ( loc ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "" ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
__extension__ ... )))); }) != 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-21
71}-
72-
73static int-
74grow_dst(char **dst, size_t *sz, size_t maxsz, char **dp, size_t need)-
75{-
76 char *tp;-
77 size_t tsz;-
78-
79 if (*dp + need < *dst + *sz)
*dp + need < *dst + *szDescription
TRUEevaluated 1188 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEevaluated 10 times by 1 test
Evaluated by:
  • test_utf8
10-1188
80 return 0;
executed 1188 times by 2 tests: return 0;
Executed by:
  • ssh-keygen
  • test_utf8
1188
81 tsz = *sz + 128;-
82 if (tsz > maxsz)
tsz > maxszDescription
TRUEevaluated 10 times by 1 test
Evaluated by:
  • test_utf8
FALSEnever evaluated
0-10
83 tsz = maxsz;
executed 10 times by 1 test: tsz = maxsz;
Executed by:
  • test_utf8
10
84 if ((tp = recallocarray(*dst, *sz, tsz, 1)) == NULL)
(tp = recalloc...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 10 times by 1 test
Evaluated by:
  • test_utf8
0-10
85 return -1;
never executed: return -1;
0
86 *dp = tp + (*dp - *dst);-
87 *dst = tp;-
88 *sz = tsz;-
89 return 0;
executed 10 times by 1 test: return 0;
Executed by:
  • test_utf8
10
90}-
91-
92/*-
93 * The following two functions limit the number of bytes written,-
94 * including the terminating '\0', to sz. Unless wp is NULL,-
95 * they limit the number of display columns occupied to *wp.-
96 * Whichever is reached first terminates the output string.-
97 * To stay close to the standard interfaces, they return the number of-
98 * non-NUL bytes that would have been written if both were unlimited.-
99 * If wp is NULL, newline, carriage return, and tab are allowed;-
100 * otherwise, the actual number of columns occupied by what was-
101 * written is returned in *wp.-
102 */-
103-
104static int-
105vasnmprintf(char **str, size_t maxsz, int *wp, const char *fmt, va_list ap)-
106{-
107 char *src; /* Source string returned from vasprintf. */-
108 char *sp; /* Pointer into src. */-
109 char *dst; /* Destination string to be returned. */-
110 char *dp; /* Pointer into dst. */-
111 char *tp; /* Temporary pointer for dst. */-
112 size_t sz; /* Number of bytes allocated for dst. */-
113 wchar_t wc; /* Wide character at sp. */-
114 int len; /* Number of bytes in the character at sp. */-
115 int ret; /* Number of bytes needed to format src. */-
116 int width; /* Display width of the character wc. */-
117 int total_width, max_width, print;-
118-
119 src = NULL;-
120 if ((ret = vasprintf(&src, fmt, ap)) <= 0)
(ret = vasprin...fmt, ap)) <= 0Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 42 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
2-42
121 goto fail;
executed 2 times by 1 test: goto fail;
Executed by:
  • test_utf8
2
122-
123 sz = strlen(src) + 1;-
124 if ((dst = malloc(sz)) == NULL) {
(dst = malloc(...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 42 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
0-42
125 free(src);-
126 ret = -1;-
127 goto fail;
never executed: goto fail;
0
128 }-
129-
130 if (maxsz > INT_MAX)
maxsz > 0x7fffffffDescription
TRUEnever evaluated
FALSEevaluated 42 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
0-42
131 maxsz = INT_MAX;
never executed: maxsz = 0x7fffffff;
0
132-
133 sp = src;-
134 dp = dst;-
135 ret = 0;-
136 print = 1;-
137 total_width = 0;-
138 max_width = wp == NULL ? INT_MAX : *wp;
wp == ((void *)0)Description
TRUEevaluated 32 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEevaluated 10 times by 1 test
Evaluated by:
  • test_utf8
10-32
139 while (*sp != '\0') {
*sp != '\0'Description
TRUEevaluated 1212 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEevaluated 42 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
42-1212
140 if ((len = mbtowc(&wc, sp, MB_CUR_MAX)) == -1) {
(len = mbtowc(...x ()) )) == -1Description
TRUEevaluated 17 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 1195 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
17-1195
141 (void)mbtowc(NULL, NULL, MB_CUR_MAX);-
142 if (dangerous_locale()) {
dangerous_locale()Description
TRUEnever evaluated
FALSEevaluated 17 times by 1 test
Evaluated by:
  • test_utf8
0-17
143 ret = -1;-
144 break;
never executed: break;
0
145 }-
146 len = 1;-
147 width = -1;-
148 } else if (wp == NULL &&
executed 17 times by 1 test: end of block
Executed by:
  • test_utf8
wp == ((void *)0)Description
TRUEevaluated 1180 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEevaluated 15 times by 1 test
Evaluated by:
  • test_utf8
15-1180
149 (wc == L'\n' || wc == L'\r' || wc == L'\t')) {
wc == L'\n'Description
TRUEevaluated 14 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEevaluated 1166 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
wc == L'\r'Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 1164 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
wc == L'\t'Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 1162 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
2-1166
150 /*-
151 * Don't use width uninitialized; the actual-
152 * value doesn't matter because total_width-
153 * is only returned for wp != NULL.-
154 */-
155 width = 0;-
156 } else if ((width = wcwidth(wc)) == -1 &&
executed 18 times by 2 tests: end of block
Executed by:
  • ssh-keygen
  • test_utf8
(width = wcwidth(wc)) == -1Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 1173 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
4-1173
157 dangerous_locale()) {
dangerous_locale()Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • test_utf8
0-4
158 ret = -1;-
159 break;
never executed: break;
0
160 }-
161-
162 /* Valid, printable character. */-
163-
164 if (width >= 0) {
width >= 0Description
TRUEevaluated 1191 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEevaluated 21 times by 1 test
Evaluated by:
  • test_utf8
21-1191
165 if (print && (dp - dst >= (int)maxsz - len ||
printDescription
TRUEevaluated 1191 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEnever evaluated
dp - dst >= (int)maxsz - lenDescription
TRUEevaluated 2 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 1189 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
0-1191
166 total_width > max_width - width))
total_width > ..._width - widthDescription
TRUEevaluated 3 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 1186 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
3-1186
167 print = 0;
executed 5 times by 1 test: print = 0;
Executed by:
  • test_utf8
5
168 if (print) {
printDescription
TRUEevaluated 1186 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEevaluated 5 times by 1 test
Evaluated by:
  • test_utf8
5-1186
169 if (grow_dst(&dst, &sz, maxsz,
grow_dst(&dst,...dp, len) == -1Description
TRUEnever evaluated
FALSEevaluated 1186 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
0-1186
170 &dp, len) == -1) {
grow_dst(&dst,...dp, len) == -1Description
TRUEnever evaluated
FALSEevaluated 1186 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
0-1186
171 ret = -1;-
172 break;
never executed: break;
0
173 }-
174 total_width += width;-
175 memcpy(dp, sp, len);-
176 dp += len;-
177 }
executed 1186 times by 2 tests: end of block
Executed by:
  • ssh-keygen
  • test_utf8
1186
178 sp += len;-
179 if (ret >= 0)
ret >= 0Description
TRUEevaluated 1191 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEnever evaluated
0-1191
180 ret += len;
executed 1191 times by 2 tests: ret += len;
Executed by:
  • ssh-keygen
  • test_utf8
1191
181 continue;
executed 1191 times by 2 tests: continue;
Executed by:
  • ssh-keygen
  • test_utf8
1191
182 }-
183-
184 /* Escaping required. */-
185-
186 while (len > 0) {
len > 0Description
TRUEevaluated 21 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 21 times by 1 test
Evaluated by:
  • test_utf8
21
187 if (print && (dp - dst >= (int)maxsz - 4 ||
printDescription
TRUEevaluated 18 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 3 times by 1 test
Evaluated by:
  • test_utf8
dp - dst >= (int)maxsz - 4Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 16 times by 1 test
Evaluated by:
  • test_utf8
2-18
188 total_width > max_width - 4))
total_width > max_width - 4Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 12 times by 1 test
Evaluated by:
  • test_utf8
4-12
189 print = 0;
executed 6 times by 1 test: print = 0;
Executed by:
  • test_utf8
6
190 if (print) {
printDescription
TRUEevaluated 12 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 9 times by 1 test
Evaluated by:
  • test_utf8
9-12
191 if (grow_dst(&dst, &sz, maxsz,
grow_dst(&dst,... &dp, 4) == -1Description
TRUEnever evaluated
FALSEevaluated 12 times by 1 test
Evaluated by:
  • test_utf8
0-12
192 &dp, 4) == -1) {
grow_dst(&dst,... &dp, 4) == -1Description
TRUEnever evaluated
FALSEevaluated 12 times by 1 test
Evaluated by:
  • test_utf8
0-12
193 ret = -1;-
194 break;
never executed: break;
0
195 }-
196 tp = vis(dp, *sp, VIS_OCTAL | VIS_ALL, 0);-
197 width = tp - dp;-
198 total_width += width;-
199 dp = tp;-
200 } else
executed 12 times by 1 test: end of block
Executed by:
  • test_utf8
12
201 width = 4;
executed 9 times by 1 test: width = 4;
Executed by:
  • test_utf8
9
202 len--;-
203 sp++;-
204 if (ret >= 0)
ret >= 0Description
TRUEevaluated 21 times by 1 test
Evaluated by:
  • test_utf8
FALSEnever evaluated
0-21
205 ret += width;
executed 21 times by 1 test: ret += width;
Executed by:
  • test_utf8
21
206 }
executed 21 times by 1 test: end of block
Executed by:
  • test_utf8
21
207 if (len > 0)
len > 0Description
TRUEnever evaluated
FALSEevaluated 21 times by 1 test
Evaluated by:
  • test_utf8
0-21
208 break;
never executed: break;
0
209 }
executed 21 times by 1 test: end of block
Executed by:
  • test_utf8
21
210 free(src);-
211 *dp = '\0';-
212 *str = dst;-
213 if (wp != NULL)
wp != ((void *)0)Description
TRUEevaluated 10 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 32 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
10-32
214 *wp = total_width;
executed 10 times by 1 test: *wp = total_width;
Executed by:
  • test_utf8
10
215-
216 /*-
217 * If the string was truncated by the width limit but-
218 * would have fit into the size limit, the only sane way-
219 * to report the problem is using the return value, such-
220 * that the usual idiom "if (ret < 0 || ret >= sz) error"-
221 * works as expected.-
222 */-
223-
224 if (ret < (int)maxsz && !print)
ret < (int)maxszDescription
TRUEevaluated 38 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
FALSEevaluated 4 times by 1 test
Evaluated by:
  • test_utf8
!printDescription
TRUEevaluated 7 times by 1 test
Evaluated by:
  • test_utf8
FALSEevaluated 31 times by 2 tests
Evaluated by:
  • ssh-keygen
  • test_utf8
4-38
225 ret = -1;
executed 7 times by 1 test: ret = -1;
Executed by:
  • test_utf8
7
226 return ret;
executed 42 times by 2 tests: return ret;
Executed by:
  • ssh-keygen
  • test_utf8
42
227-
228fail:-
229 if (wp != NULL)
wp != ((void *)0)Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • test_utf8
FALSEnever evaluated
0-2
230 *wp = 0;
executed 2 times by 1 test: *wp = 0;
Executed by:
  • test_utf8
2
231 if (ret == 0) {
ret == 0Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • test_utf8
FALSEnever evaluated
0-2
232 *str = src;-
233 return 0;
executed 2 times by 1 test: return 0;
Executed by:
  • test_utf8
2
234 } else {-
235 *str = NULL;-
236 return -1;
never executed: return -1;
0
237 }-
238}-
239-
240int-
241snmprintf(char *str, size_t sz, int *wp, const char *fmt, ...)-
242{-
243 va_list ap;-
244 char *cp;-
245 int ret;-
246-
247 va_start(ap, fmt);-
248 ret = vasnmprintf(&cp, sz, wp, fmt, ap);-
249 va_end(ap);-
250 if (cp != NULL) {
cp != ((void *)0)Description
TRUEevaluated 32 times by 1 test
Evaluated by:
  • test_utf8
FALSEnever evaluated
0-32
251 (void)strlcpy(str, cp, sz);-
252 free(cp);-
253 } else
executed 32 times by 1 test: end of block
Executed by:
  • test_utf8
32
254 *str = '\0';
never executed: *str = '\0';
0
255 return ret;
executed 32 times by 1 test: return ret;
Executed by:
  • test_utf8
32
256}-
257-
258/*-
259 * To stay close to the standard interfaces, the following functions-
260 * return the number of non-NUL bytes written.-
261 */-
262-
263int-
264vfmprintf(FILE *stream, const char *fmt, va_list ap)-
265{-
266 char *str;-
267 int ret;-
268-
269 if ((ret = vasnmprintf(&str, INT_MAX, NULL, fmt, ap)) < 0)
(ret = vasnmpr... fmt, ap)) < 0Description
TRUEnever evaluated
FALSEevaluated 12 times by 1 test
Evaluated by:
  • ssh-keygen
0-12
270 return -1;
never executed: return -1;
0
271 if (fputs(str, stream) == EOF)
fputs(str, stream) == (-1)Description
TRUEnever evaluated
FALSEevaluated 12 times by 1 test
Evaluated by:
  • ssh-keygen
0-12
272 ret = -1;
never executed: ret = -1;
0
273 free(str);-
274 return ret;
executed 12 times by 1 test: return ret;
Executed by:
  • ssh-keygen
12
275}-
276-
277int-
278fmprintf(FILE *stream, const char *fmt, ...)-
279{-
280 va_list ap;-
281 int ret;-
282-
283 va_start(ap, fmt);-
284 ret = vfmprintf(stream, fmt, ap);-
285 va_end(ap);-
286 return ret;
never executed: return ret;
0
287}-
288-
289int-
290mprintf(const char *fmt, ...)-
291{-
292 va_list ap;-
293 int ret;-
294-
295 va_start(ap, fmt);-
296 ret = vfmprintf(stdout, fmt, ap);-
297 va_end(ap);-
298 return ret;
executed 12 times by 1 test: return ret;
Executed by:
  • ssh-keygen
12
299}-
300-
301/*-
302 * Set up libc for multibyte output in the user's chosen locale.-
303 *-
304 * XXX: we are known to have problems with Turkish (i/I confusion) so we-
305 * deliberately fall back to the C locale for now. Longer term we should-
306 * always prefer to select C.[encoding] if possible, but there's no-
307 * standardisation in locales between systems, so we'll need to survey-
308 * what's out there first.-
309 */-
310void-
311msetlocale(void)-
312{-
313 const char *vars[] = { "LC_ALL", "LC_CTYPE", "LANG", NULL };-
314 char *cp;-
315 int i;-
316-
317 /*-
318 * We can't yet cope with dotless/dotted I in Turkish locales,-
319 * so fall back to the C locale for these.-
320 */-
321 for (i = 0; vars[i] != NULL; i++) {
vars[i] != ((void *)0)Description
TRUEevaluated 84 times by 1 test
Evaluated by:
  • ssh-keygen
FALSEnever evaluated
0-84
322 if ((cp = getenv(vars[i])) == NULL)
(cp = getenv(v...== ((void *)0)Description
TRUEevaluated 56 times by 1 test
Evaluated by:
  • ssh-keygen
FALSEevaluated 28 times by 1 test
Evaluated by:
  • ssh-keygen
28-56
323 continue;
executed 56 times by 1 test: continue;
Executed by:
  • ssh-keygen
56
324 if (strncasecmp(cp, "TR", 2) != 0)
strncasecmp(cp, "TR", 2) != 0Description
TRUEevaluated 28 times by 1 test
Evaluated by:
  • ssh-keygen
FALSEnever evaluated
0-28
325 break;
executed 28 times by 1 test: break;
Executed by:
  • ssh-keygen
28
326 /*-
327 * If we're in a UTF-8 locale then prefer to use-
328 * the C.UTF-8 locale (or equivalent) if it exists.-
329 */-
330 if ((strcasestr(cp, "UTF-8") != NULL ||
strcasestr(cp,...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
331 strcasestr(cp, "UTF8") != NULL) &&
strcasestr(cp,...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
332 (setlocale(LC_CTYPE, "C.UTF-8") != NULL ||
setlocale( 0 ,...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
333 setlocale(LC_CTYPE, "POSIX.UTF-8") != NULL))
setlocale( 0 ,...!= ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
0
334 return;
never executed: return;
0
335 setlocale(LC_CTYPE, "C");-
336 return;
never executed: return;
0
337 }-
338 /* We can handle this locale */-
339 setlocale(LC_CTYPE, "");-
340}
executed 28 times by 1 test: end of block
Executed by:
  • ssh-keygen
28
Source codeSwitch to Preprocessed file
Generated by Squish Coco 4.2.2