Commit | Line | Data |
---|---|---|
7033246b LE |
1 | # |
2 | ||
3 | /* | |
4 | * last command | |
5 | */ | |
6 | ||
7 | # include <stdio.h> | |
8 | # include <sys/types.h> | |
9 | # include <sys/acct.h> | |
10 | # include <signal.h> | |
11 | # include <pwd.h> | |
12 | # include <stat.h> | |
13 | ||
14 | # define N_USER 1000 | |
15 | ||
16 | struct acct acct_buff [BUFSIZ / sizeof (struct acct)]; | |
17 | ||
18 | char yes = 1, | |
19 | no = 0, | |
20 | ||
21 | user_list [1000][9]; | |
22 | ||
23 | time_t expand (); | |
24 | ||
25 | struct passwd | |
26 | *passwd, | |
27 | *getpwent (); | |
28 | ||
29 | struct stat stat_buff; | |
30 | ||
31 | main (argc, argv) | |
32 | char **argv; | |
33 | { | |
34 | char acct_desc, | |
35 | *p; | |
36 | ||
37 | long i, | |
38 | j, | |
39 | i_block, | |
40 | n_blocks, | |
41 | n_byte, | |
42 | n_entry; | |
43 | ||
44 | float x; | |
45 | ||
46 | /* | |
47 | * set up user names | |
48 | */ | |
49 | while (passwd = getpwent ()) | |
50 | { | |
51 | move (passwd->pw_name, user_list [passwd->pw_uid]); | |
52 | } | |
53 | ||
54 | acct_desc = open ("/usr/adm/acct", 0); | |
55 | if (acct_desc < 0) | |
56 | { | |
57 | perror ("/usr/adm/acct"); | |
58 | return; | |
59 | } | |
60 | fstat (acct_desc, &stat_buff); | |
61 | n_blocks = (stat_buff.st_size + BUFSIZ - 1) / BUFSIZ; | |
62 | ||
63 | /* | |
64 | * read one block's worth | |
65 | */ | |
66 | for (i_block = n_blocks - 1; i_block >= 0; i_block--) | |
67 | { | |
68 | lseek (acct_desc, i_block * BUFSIZ, 0); | |
69 | n_byte = read (acct_desc, acct_buff, BUFSIZ); | |
70 | n_entry = n_byte / sizeof acct_buff [0]; | |
71 | for (i = n_entry - 1; i >= 0; i--) | |
72 | { | |
73 | if (!*user_list [acct_buff [i].ac_uid]) continue; | |
74 | /* | |
75 | * get the times | |
76 | */ | |
77 | x = expand (acct_buff [i].ac_utime) | |
78 | + | |
79 | expand (acct_buff [i].ac_stime); | |
80 | /* | |
81 | * null terminate the command name | |
82 | */ | |
83 | acct_buff [i].ac_comm [10] = 0; | |
84 | /* | |
85 | * replace missing command names with question marks | |
86 | */ | |
87 | if (!*acct_buff [i].ac_comm) | |
88 | { | |
89 | move ("?", acct_buff [i].ac_comm); | |
90 | } | |
91 | /* | |
92 | * replace control characters with question marks | |
93 | */ | |
94 | for (p = acct_buff [i].ac_comm; *p; p++) | |
95 | { | |
96 | if (*p < '!' || '~' < *p) *p = '?'; | |
97 | } | |
98 | for (j = 1; j < argc; j++) | |
99 | { | |
100 | if | |
101 | ( | |
102 | equal (acct_buff [i].ac_comm, argv [j]) | |
103 | || | |
104 | equal | |
105 | ( | |
106 | user_list [acct_buff [i].ac_uid], | |
107 | argv [j] | |
108 | ) | |
109 | ) | |
110 | { | |
111 | break; | |
112 | } | |
113 | } | |
114 | if (argc == 1 || j != argc) | |
115 | { | |
116 | printf | |
117 | ( | |
118 | "%-10s %-8s %6.2f %.16s\n", | |
119 | acct_buff [i].ac_comm, | |
120 | user_list [acct_buff [i].ac_uid], | |
121 | x / 60.0, | |
122 | ctime (&acct_buff [i].ac_btime) | |
123 | ); | |
124 | } | |
125 | } | |
126 | } | |
127 | } | |
128 | ||
129 | time_t | |
130 | expand (t) | |
131 | unsigned t; | |
132 | { | |
133 | register time_t nt; | |
134 | ||
135 | nt = t & 017777; | |
136 | t >>= 13; | |
137 | while (t) | |
138 | { | |
139 | t--; | |
140 | nt <<= 3; | |
141 | } | |
142 | return (nt); | |
143 | } | |
144 | ||
145 | move (a, b) | |
146 | char *a, *b; | |
147 | { | |
148 | while (*b++ = *a++); | |
149 | } | |
150 | ||
151 | equal (a, b) | |
152 | char *a, *b; | |
153 | { | |
154 | for (;; a++, b++) | |
155 | { | |
156 | if (*a != *b) return no; | |
157 | if (!*a) return yes; | |
158 | } | |
159 | } |