projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 31cef89c | 1 | static char *sccsid = "@(#)lastcomm.c 4.1 (Berkeley) 10/1/80"; |
| c7eeef87 BJ |
2 | # |
| 3 | ||
| 4 | /* | |
| 5 | * last command | |
| 6 | */ | |
| 7 | ||
| 8 | # include <stdio.h> | |
| 9 | # include <sys/types.h> | |
| 10 | # include <sys/acct.h> | |
| 11 | # include <signal.h> | |
| 12 | # include <pwd.h> | |
| 13 | # include <stat.h> | |
| 14 | ||
| 15 | # define N_USER 1000 | |
| 16 | ||
| 17 | struct acct acct_buff [BUFSIZ / sizeof (struct acct)]; | |
| 18 | ||
| 19 | char yes = 1, | |
| 20 | no = 0, | |
| 21 | ||
| 22 | user_list [1000][9]; | |
| 23 | ||
| 24 | time_t expand (); | |
| 25 | ||
| 26 | struct passwd | |
| 27 | *passwd, | |
| 28 | *getpwent (); | |
| 29 | ||
| 30 | struct stat stat_buff; | |
| 31 | ||
| 32 | main (argc, argv) | |
| 33 | char **argv; | |
| 34 | { | |
| 35 | char acct_desc, | |
| 36 | *p; | |
| 37 | ||
| 38 | long i, | |
| 39 | j, | |
| 40 | i_block, | |
| 41 | n_blocks, | |
| 42 | n_byte, | |
| 43 | n_entry; | |
| 44 | ||
| 45 | float x; | |
| 46 | ||
| 47 | /* | |
| 48 | * set up user names | |
| 49 | */ | |
| 50 | while (passwd = getpwent ()) | |
| 51 | { | |
| 52 | move (passwd->pw_name, user_list [passwd->pw_uid]); | |
| 53 | } | |
| 54 | ||
| 55 | acct_desc = open ("/usr/adm/acct", 0); | |
| 56 | if (acct_desc < 0) | |
| 57 | { | |
| 58 | perror ("/usr/adm/acct"); | |
| 59 | return; | |
| 60 | } | |
| 61 | fstat (acct_desc, &stat_buff); | |
| 62 | n_blocks = (stat_buff.st_size + BUFSIZ - 1) / BUFSIZ; | |
| 63 | ||
| 64 | /* | |
| 65 | * read one block's worth | |
| 66 | */ | |
| 67 | for (i_block = n_blocks - 1; i_block >= 0; i_block--) | |
| 68 | { | |
| 69 | lseek (acct_desc, i_block * BUFSIZ, 0); | |
| 70 | n_byte = read (acct_desc, acct_buff, BUFSIZ); | |
| 71 | n_entry = n_byte / sizeof acct_buff [0]; | |
| 72 | for (i = n_entry - 1; i >= 0; i--) | |
| 73 | { | |
| 74 | if (!*user_list [acct_buff [i].ac_uid]) continue; | |
| 75 | /* | |
| 76 | * get the times | |
| 77 | */ | |
| 78 | x = expand (acct_buff [i].ac_utime) | |
| 79 | + | |
| 80 | expand (acct_buff [i].ac_stime); | |
| 81 | /* | |
| 82 | * null terminate the command name | |
| 83 | */ | |
| 84 | acct_buff [i].ac_comm [10] = 0; | |
| 85 | /* | |
| 86 | * replace missing command names with question marks | |
| 87 | */ | |
| 88 | if (!*acct_buff [i].ac_comm) | |
| 89 | { | |
| 90 | move ("?", acct_buff [i].ac_comm); | |
| 91 | } | |
| 92 | /* | |
| 93 | * replace control characters with question marks | |
| 94 | */ | |
| 95 | for (p = acct_buff [i].ac_comm; *p; p++) | |
| 96 | { | |
| 97 | if (*p < '!' || '~' < *p) *p = '?'; | |
| 98 | } | |
| 99 | for (j = 1; j < argc; j++) | |
| 100 | { | |
| 101 | if | |
| 102 | ( | |
| 103 | equal (acct_buff [i].ac_comm, argv [j]) | |
| 104 | || | |
| 105 | equal | |
| 106 | ( | |
| 107 | user_list [acct_buff [i].ac_uid], | |
| 108 | argv [j] | |
| 109 | ) | |
| 110 | ) | |
| 111 | { | |
| 112 | break; | |
| 113 | } | |
| 114 | } | |
| 115 | if (argc == 1 || j != argc) | |
| 116 | { | |
| 117 | printf | |
| 118 | ( | |
| 119 | "%-10s %-8s %6.2f %.16s\n", | |
| 120 | acct_buff [i].ac_comm, | |
| 121 | user_list [acct_buff [i].ac_uid], | |
| 122 | x / 60.0, | |
| 123 | ctime (&acct_buff [i].ac_btime) | |
| 124 | ); | |
| 125 | } | |
| 126 | } | |
| 127 | } | |
| 128 | } | |
| 129 | ||
| 130 | time_t | |
| 131 | expand (t) | |
| 132 | unsigned t; | |
| 133 | { | |
| 134 | register time_t nt; | |
| 135 | ||
| 136 | nt = t & 017777; | |
| 137 | t >>= 13; | |
| 138 | while (t) | |
| 139 | { | |
| 140 | t--; | |
| 141 | nt <<= 3; | |
| 142 | } | |
| 143 | return (nt); | |
| 144 | } | |
| 145 | ||
| 146 | move (a, b) | |
| 147 | char *a, *b; | |
| 148 | { | |
| 149 | while (*b++ = *a++); | |
| 150 | } | |
| 151 | ||
| 152 | equal (a, b) | |
| 153 | char *a, *b; | |
| 154 | { | |
| 155 | for (;; a++, b++) | |
| 156 | { | |
| 157 | if (*a != *b) return no; | |
| 158 | if (!*a) return yes; | |
| 159 | } | |
| 160 | } |