OpenCoverage

mkfifo.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/coreutils/src/src/mkfifo.c
Source codeSwitch to Preprocessed file
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1/* mkfifo -- make fifo's (named pipes)-
2 Copyright (C) 1990-2018 Free Software Foundation, Inc.-
3-
4 This program is free software: you can redistribute it and/or modify-
5 it under the terms of the GNU General Public License as published by-
6 the Free Software Foundation, either version 3 of the License, or-
7 (at your option) any later version.-
8-
9 This program is distributed in the hope that it will be useful,-
10 but WITHOUT ANY WARRANTY; without even the implied warranty of-
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the-
12 GNU General Public License for more details.-
13-
14 You should have received a copy of the GNU General Public License-
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */-
16-
17/* David MacKenzie <djm@ai.mit.edu> */-
18-
19#include <config.h>-
20#include <stdio.h>-
21#include <getopt.h>-
22#include <sys/types.h>-
23#include <selinux/selinux.h>-
24-
25#include "system.h"-
26#include "die.h"-
27#include "error.h"-
28#include "modechange.h"-
29#include "quote.h"-
30#include "selinux.h"-
31#include "smack.h"-
32-
33/* The official name of this program (e.g., no 'g' prefix). */-
34#define PROGRAM_NAME "mkfifo"-
35-
36#define AUTHORS proper_name ("David MacKenzie")-
37-
38static struct option const longopts[] =-
39{-
40 {GETOPT_SELINUX_CONTEXT_OPTION_DECL},-
41 {"mode", required_argument, NULL, 'm'},-
42 {GETOPT_HELP_OPTION_DECL},-
43 {GETOPT_VERSION_OPTION_DECL},-
44 {NULL, 0, NULL, 0}-
45};-
46-
47void-
48usage (int status)-
49{-
50 if (status != EXIT_SUCCESS)
status != 0Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • mkfifo
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
1-2
51 emit_try_help ();
executed 1 time by 1 test: end of block
Executed by:
  • mkfifo
1
52 else-
53 {-
54 printf (_("Usage: %s [OPTION]... NAME...\n"), program_name);-
55 fputs (_("\-
56Create named pipes (FIFOs) with the given NAMEs.\n\-
57"), stdout);-
58-
59 emit_mandatory_arg_note ();-
60-
61 fputs (_("\-
62 -m, --mode=MODE set file permission bits to MODE, not a=rw - umask\n\-
63"), stdout);-
64 fputs (_("\-
65 -Z set the SELinux security context to default type\n\-
66 --context[=CTX] like -Z, or if CTX is specified then set the SELinux\n\-
67 or SMACK security context to CTX\n\-
68"), stdout);-
69 fputs (HELP_OPTION_DESCRIPTION, stdout);-
70 fputs (VERSION_OPTION_DESCRIPTION, stdout);-
71 emit_ancillary_info (PROGRAM_NAME);-
72 }
executed 2 times by 1 test: end of block
Executed by:
  • mkfifo
2
73 exit (status);
executed 3 times by 1 test: exit (status);
Executed by:
  • mkfifo
3
74}-
75-
76int-
77main (int argc, char **argv)-
78{-
79 mode_t newmode;-
80 char const *specified_mode = NULL;-
81 int exit_status = EXIT_SUCCESS;-
82 int optc;-
83 char const *scontext = NULL;-
84 bool set_security_context = false;-
85-
86 initialize_main (&argc, &argv);-
87 set_program_name (argv[0]);-
88 setlocale (LC_ALL, "");-
89 bindtextdomain (PACKAGE, LOCALEDIR);-
90 textdomain (PACKAGE);-
91-
92 atexit (close_stdout);-
93-
94 while ((optc = getopt_long (argc, argv, "m:Z", longopts, NULL)) != -1)
(optc = getopt... *)0) )) != -1Description
TRUEevaluated 7 times by 1 test
Evaluated by:
  • mkfifo
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
2-7
95 {-
96 switch (optc)-
97 {-
98 case 'm':
never executed: case 'm':
0
99 specified_mode = optarg;-
100 break;
never executed: break;
0
101 case 'Z':
never executed: case 'Z':
0
102 if (is_smack_enabled ())
is_smack_enabled ()Description
TRUEnever evaluated
FALSEnever evaluated
0
103 {-
104 /* We don't yet support -Z to restore context with SMACK. */-
105 scontext = optarg;-
106 }
never executed: end of block
0
107 else if (is_selinux_enabled () > 0)
is_selinux_enabled () > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
108 {-
109 if (optarg)
optargDescription
TRUEnever evaluated
FALSEnever evaluated
0
110 scontext = optarg;
never executed: scontext = optarg;
0
111 else-
112 set_security_context = true;
never executed: set_security_context = 1 ;
0
113 }-
114 else if (optarg)
optargDescription
TRUEnever evaluated
FALSEnever evaluated
0
115 {-
116 error (0, 0,-
117 _("warning: ignoring --context; "-
118 "it requires an SELinux/SMACK-enabled kernel"));-
119 }
never executed: end of block
0
120 break;
never executed: break;
0
121 case_GETOPT_HELP_CHAR;
never executed: break;
executed 2 times by 1 test: case GETOPT_HELP_CHAR:
Executed by:
  • mkfifo
0-2
122 case_GETOPT_VERSION_CHAR (PROGRAM_NAME, AUTHORS);
executed 4 times by 1 test: exit ( 0 );
Executed by:
  • mkfifo
never executed: break;
executed 4 times by 1 test: case GETOPT_VERSION_CHAR:
Executed by:
  • mkfifo
0-4
123 default:
executed 1 time by 1 test: default:
Executed by:
  • mkfifo
1
124 usage (EXIT_FAILURE);-
125 }
never executed: end of block
0
126 }-
127-
128 if (optind == argc)
optind == argcDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
0-2
129 {-
130 error (0, 0, _("missing operand"));-
131 usage (EXIT_FAILURE);-
132 }
never executed: end of block
0
133-
134 if (scontext)
scontextDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
0-2
135 {-
136 int ret = 0;-
137 if (is_smack_enabled ())
is_smack_enabled ()Description
TRUEnever evaluated
FALSEnever evaluated
0
138 ret = smack_set_label_for_self (scontext);
never executed: ret = smack_set_label_for_self (scontext);
0
139 else-
140 ret = setfscreatecon (se_const (scontext));
never executed: ret = setfscreatecon (se_const (scontext));
0
141-
142 if (ret < 0)
ret < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
143 die (EXIT_FAILURE, errno,
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, (*__errno_location ()), dcgettext (((void *)0), \"failed to set default file creation context to %s\", 5), quote (scontext)), assume (false))" ")"); int _gl_dummy; })) ? ((erro... (scontext)), (( 0 ) ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , (*__errno_location ()) , dcgettext (((void *)0), "failed to set default file creation context to %s" , 5) , quote (scontext)), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
144 _("failed to set default file creation context to %s"),
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, (*__errno_location ()), dcgettext (((void *)0), \"failed to set default file creation context to %s\", 5), quote (scontext)), assume (false))" ")"); int _gl_dummy; })) ? ((erro... (scontext)), (( 0 ) ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , (*__errno_location ()) , dcgettext (((void *)0), "failed to set default file creation context to %s" , 5) , quote (scontext)), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
145 quote (scontext));
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, (*__errno_location ()), dcgettext (((void *)0), \"failed to set default file creation context to %s\", 5), quote (scontext)), assume (false))" ")"); int _gl_dummy; })) ? ((erro... (scontext)), (( 0 ) ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , (*__errno_location ()) , dcgettext (((void *)0), "failed to set default file creation context to %s" , 5) , quote (scontext)), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
146 }
never executed: end of block
0
147-
148 newmode = MODE_RW_UGO;-
149 if (specified_mode)
specified_modeDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
0-2
150 {-
151 mode_t umask_value;-
152 struct mode_change *change = mode_compile (specified_mode);-
153 if (!change)
!changeDescription
TRUEnever evaluated
FALSEnever evaluated
0
154 die (EXIT_FAILURE, 0, _("invalid mode"));
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, 0, dcgettext (((void *)0), \"invalid mode\", 5)), assume (false))" ")"); int _gl_dummy; })) ? ((error ( 1 , 0, dcgettext (((void *)0), "invalid mode" , 5) ), (( 0 ) ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , 0, dcgettext (((void *)0), "invalid mode" , 5) ), (( 0 ) ? (void) 0 : __builtin_unreachable ()))));
0
155 umask_value = umask (0);-
156 umask (umask_value);-
157 newmode = mode_adjust (newmode, false, umask_value, change, NULL);-
158 free (change);-
159 if (newmode & ~S_IRWXUGO)
newmode & ~ ((...) >> 3) >> 3))Description
TRUEnever evaluated
FALSEnever evaluated
0
160 die (EXIT_FAILURE, 0,
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, 0, dcgettext (((void *)0), \"mode must specify only file permission bits\", 5)), assume (false))" ")"); int _gl_dummy; })) ? ((error ( 1 , 0, dcgettext (((void *)0), "mode must specify only file permission bits" , 5) ), (( 0 ) ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , 0, dcgettext (((void *)0), "mode must specify only file permission bits" , 5) ), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
161 _("mode must specify only file permission bits"));
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, 0, dcgettext (((void *)0), \"mode must specify only file permission bits\", 5)), assume (false))" ")"); int _gl_dummy; })) ? ((error ( 1 , 0, dcgettext (((void *)0), "mode must specify only file permission bits" , 5) ), (( 0 ) ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , 0, dcgettext (((void *)0), "mode must specify only file permission bits" , 5) ), (( 0 ) ? (void) 0 : __builtin_unreachable ())))) ;
0
162 }
never executed: end of block
0
163-
164 for (; optind < argc; ++optind)
optind < argcDescription
TRUEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
2
165 {-
166 if (set_security_context)
set_security_contextDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
0-2
167 defaultcon (argv[optind], S_IFIFO);
never executed: defaultcon (argv[optind], 0010000 );
0
168 if (mkfifo (argv[optind], newmode) != 0)
mkfifo (argv[o... newmode) != 0Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
0-2
169 {-
170 error (0, errno, _("cannot create fifo %s"), quoteaf (argv[optind]));-
171 exit_status = EXIT_FAILURE;-
172 }
never executed: end of block
0
173 else if (specified_mode && lchmod (argv[optind], newmode) != 0)
specified_modeDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • mkfifo
chmod (argv[op... newmode) != 0Description
TRUEnever evaluated
FALSEnever evaluated
0-2
174 {-
175 error (0, errno, _("cannot set permissions of %s"),-
176 quoteaf (argv[optind]));-
177 exit_status = EXIT_FAILURE;-
178 }
never executed: end of block
0
179 }
executed 2 times by 1 test: end of block
Executed by:
  • mkfifo
2
180-
181 return exit_status;
executed 2 times by 1 test: return exit_status;
Executed by:
  • mkfifo
2
182}-
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