OpenCoverage

users.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/coreutils/src/src/users.c
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1/* GNU's users.-
2 Copyright (C) 1992-2018 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/* Written by jla; revised by djm */-
18-
19#include <config.h>-
20#include <getopt.h>-
21#include <stdio.h>-
22-
23#include <sys/types.h>-
24#include "system.h"-
25-
26#include "die.h"-
27#include "error.h"-
28#include "long-options.h"-
29#include "quote.h"-
30#include "readutmp.h"-
31-
32/* The official name of this program (e.g., no 'g' prefix). */-
33#define PROGRAM_NAME "users"-
34-
35#define AUTHORS \-
36 proper_name ("Joseph Arceneaux"), \-
37 proper_name ("David MacKenzie")-
38-
39static struct option const long_options[] =-
40{-
41 {NULL, 0, NULL, 0}-
42};-
43-
44static int-
45userid_compare (const void *v_a, const void *v_b)-
46{-
47 char **a = (char **) v_a;-
48 char **b = (char **) v_b;-
49 return strcmp (*a, *b);
never executed: return __extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p ( *a ) && __builtin_constant_p ( *b ) && (__s1_len = __builtin_strlen ( *a ), __s2_len = __builtin_strlen ( *b ), (!((size_t)(const void *)(( *a ) + 1) - (size_t)(const void *)( *a )...ult == 0) { __result = (((const unsigned char *) (const char *) ( *b ))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) ( *b ))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp ( *a , *b )))); }) ;
never executed: __result = (((const unsigned char *) (const char *) ( *a ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( *b ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
__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
50}-
51-
52static void-
53list_entries_users (size_t n, const STRUCT_UTMP *this)-
54{-
55 char **u = xnmalloc (n, sizeof *u);-
56 size_t i;-
57 size_t n_entries = 0;-
58-
59 while (n--)
n--Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • users
FALSEevaluated 1 time by 1 test
Evaluated by:
  • users
1-4
60 {-
61 if (IS_USER_PROCESS (this))
dead code: ((this)->ut_tv.tv_sec) != 0
((this)-> ut_user )[0]Description
TRUEevaluated 4 times by 1 test
Evaluated by:
  • users
FALSEnever evaluated
((this)->ut_type == ( 7 ))Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • users
FALSEevaluated 3 times by 1 test
Evaluated by:
  • users
-
62 {-
63 char *trimmed_name;-
64-
65 trimmed_name = extract_trimmed_name (this);-
66-
67 u[n_entries] = trimmed_name;-
68 ++n_entries;-
69 }
executed 1 time by 1 test: end of block
Executed by:
  • users
1
70 this++;-
71 }
executed 4 times by 1 test: end of block
Executed by:
  • users
4
72-
73 qsort (u, n_entries, sizeof (u[0]), userid_compare);-
74-
75 for (i = 0; i < n_entries; i++)
i < n_entriesDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • users
FALSEevaluated 1 time by 1 test
Evaluated by:
  • users
1
76 {-
77 char c = (i < n_entries - 1 ? ' ' : '\n');
i < n_entries - 1Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • users
0-1
78 fputs (u[i], stdout);-
79 putchar (c);-
80 }
executed 1 time by 1 test: end of block
Executed by:
  • users
1
81-
82 for (i = 0; i < n_entries; i++)
i < n_entriesDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • users
FALSEevaluated 1 time by 1 test
Evaluated by:
  • users
1
83 free (u[i]);
executed 1 time by 1 test: free (u[i]);
Executed by:
  • users
1
84 free (u);-
85}
executed 1 time by 1 test: end of block
Executed by:
  • users
1
86-
87/* Display a list of users on the system, according to utmp file FILENAME.-
88 Use read_utmp OPTIONS to read FILENAME. */-
89-
90static void-
91users (const char *filename, int options)-
92{-
93 size_t n_users;-
94 STRUCT_UTMP *utmp_buf;-
95-
96 if (read_utmp (filename, &n_users, &utmp_buf, options) != 0)
read_utmp (fil... options) != 0Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • users
0-1
97 die (EXIT_FAILURE, errno, "%s", quotef (filename));
never executed: ((!!sizeof (struct { _Static_assert ( 1 , "verify_expr (" "1" ", " "(error (1, (*__errno_location ()), \"%s\", quotearg_n_style_colon (0, shell_escape_quoting_style, filename)), assume (false))" ")"); int _gl_dummy; })) ? ((error ( 1 , (*__errno_location ...(0, shell_escape_quoting_style, filename)), (( 0 ) ? (void) 0 : __builtin_unreachable ()))) : ((error ( 1 , (*__errno_location ()) , "%s", quotearg_n_style_colon (0, shell_escape_quoting_style, filename)), (( 0 ) ? (void) 0 : __builtin_unreachable ()))));
0
98-
99 list_entries_users (n_users, utmp_buf);-
100-
101 free (utmp_buf);-
102}
executed 1 time by 1 test: end of block
Executed by:
  • users
1
103-
104void-
105usage (int status)-
106{-
107 if (status != EXIT_SUCCESS)
status != 0Description
TRUEevaluated 3 times by 1 test
Evaluated by:
  • users
FALSEevaluated 3 times by 1 test
Evaluated by:
  • users
3
108 emit_try_help ();
executed 3 times by 1 test: end of block
Executed by:
  • users
3
109 else-
110 {-
111 printf (_("Usage: %s [OPTION]... [FILE]\n"), program_name);-
112 printf (_("\-
113Output who is currently logged in according to FILE.\n\-
114If FILE is not specified, use %s. %s as FILE is common.\n\-
115\n\-
116"),-
117 UTMP_FILE, WTMP_FILE);-
118 fputs (HELP_OPTION_DESCRIPTION, stdout);-
119 fputs (VERSION_OPTION_DESCRIPTION, stdout);-
120 emit_ancillary_info (PROGRAM_NAME);-
121 }
executed 3 times by 1 test: end of block
Executed by:
  • users
3
122 exit (status);
executed 6 times by 1 test: exit (status);
Executed by:
  • users
6
123}-
124-
125int-
126main (int argc, char **argv)-
127{-
128 initialize_main (&argc, &argv);-
129 set_program_name (argv[0]);-
130 setlocale (LC_ALL, "");-
131 bindtextdomain (PACKAGE, LOCALEDIR);-
132 textdomain (PACKAGE);-
133-
134 atexit (close_stdout);-
135-
136 parse_long_options (argc, argv, PROGRAM_NAME, PACKAGE_NAME, Version,-
137 usage, AUTHORS, (char const *) NULL);-
138 if (getopt_long (argc, argv, "", long_options, NULL) != -1)
getopt_long (a...d *)0) ) != -1Description
TRUEevaluated 3 times by 1 test
Evaluated by:
  • users
FALSEevaluated 1 time by 1 test
Evaluated by:
  • users
1-3
139 usage (EXIT_FAILURE);
executed 3 times by 1 test: usage ( 1 );
Executed by:
  • users
3
140-
141 switch (argc - optind)-
142 {-
143 case 0: /* users */
executed 1 time by 1 test: case 0:
Executed by:
  • users
1
144 users (UTMP_FILE, READ_UTMP_CHECK_PIDS);-
145 break;
executed 1 time by 1 test: break;
Executed by:
  • users
1
146-
147 case 1: /* users <utmp file> */
never executed: case 1:
0
148 users (argv[optind], 0);-
149 break;
never executed: break;
0
150-
151 default: /* lose */
never executed: default:
0
152 error (0, 0, _("extra operand %s"), quote (argv[optind + 1]));-
153 usage (EXIT_FAILURE);-
154 }
never executed: end of block
0
155-
156 return EXIT_SUCCESS;
executed 1 time by 1 test: return 0 ;
Executed by:
  • users
1
157}-
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