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Commit | Line | Data |
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de56407f | 1 | /* |
2 | * $Source$ | |
3 | * $Header$ | |
4 | */ | |
546bc43b | 5 | /* (c) Copyright 1988 by the Massachusetts Institute of Technology. */ |
6 | /* For copying and distribution information, please see the file */ | |
7 | /* <mit-copyright.h>. */ | |
de56407f | 8 | |
9 | #ifndef lint | |
10 | static char *rcsid_exec_002_c = "$Header$"; | |
11 | #endif lint | |
12 | ||
546bc43b | 13 | #include <mit-copyright.h> |
de56407f | 14 | #include <stdio.h> |
8b3ba58e | 15 | #include <errno.h> |
c57b6bd3 | 16 | #include <sys/types.h> |
de56407f | 17 | #include <sys/wait.h> |
6143ee87 | 18 | #include <signal.h> |
c8dc853f | 19 | #include <gdb.h> |
2ad0a777 | 20 | #include <moira.h> |
de56407f | 21 | #include "update.h" |
de56407f | 22 | |
23 | extern CONNECTION conn; | |
8b3ba58e | 24 | extern int code, errno, uid; |
25 | extern char *whoami; | |
26 | ||
de56407f | 27 | |
28 | int | |
29 | exec_002(str) | |
30 | char *str; | |
31 | { | |
32 | union wait waitb; | |
6143ee87 | 33 | int n, pid, mask; |
de56407f | 34 | |
8b3ba58e | 35 | if (config_lookup("noexec")) { |
36 | code = EPERM; | |
37 | code = send_object(conn, (char *)&code, INTEGER_T); | |
38 | com_err(whoami, code, "Not allowed to execute"); | |
39 | return; | |
40 | } | |
de56407f | 41 | str += 8; |
42 | while (*str == ' ') | |
43 | str++; | |
6143ee87 | 44 | mask = sigblock(sigmask(SIGCHLD)); |
de56407f | 45 | pid = fork(); |
46 | switch (pid) { | |
47 | case -1: | |
48 | n = errno; | |
6143ee87 | 49 | sigsetmask(mask); |
de56407f | 50 | log_priority = log_ERROR; |
51 | com_err(whoami, errno, ": can't fork to run install script"); | |
52 | code = send_object(conn, (char *)&n, INTEGER_T); | |
53 | if (code) | |
54 | exit(1); | |
55 | return; | |
56 | case 0: | |
8b3ba58e | 57 | if (setuid(uid) < 0) { |
58 | com_err(whoami, errno, "Unable to setuid to %d\n", uid); | |
59 | exit(1); | |
60 | } | |
e19df9fb | 61 | sigsetmask(mask); |
de56407f | 62 | execlp(str, str, (char *)NULL); |
63 | n = errno; | |
6143ee87 | 64 | sigsetmask(mask); |
de56407f | 65 | log_priority = log_ERROR; |
66 | com_err(whoami, n, ": %s", str); | |
67 | (void) send_object(conn, (char *)&n, INTEGER_T); | |
68 | exit(1); | |
69 | default: | |
70 | do { | |
71 | n = wait(&waitb); | |
72 | } while (n != -1 && n != pid); | |
6143ee87 | 73 | sigsetmask(mask); |
de56407f | 74 | if (waitb.w_status) { |
b33c0986 | 75 | n = waitb.w_retcode + ERROR_TABLE_BASE_sms; |
de56407f | 76 | log_priority = log_ERROR; |
c8dc853f | 77 | com_err(whoami, n, " child exited with status %d", waitb.w_retcode); |
de56407f | 78 | code = send_object(conn, (char *)&n, INTEGER_T); |
c8dc853f | 79 | if (code) { |
de56407f | 80 | exit(1); |
c8dc853f | 81 | } |
82 | } else { | |
de56407f | 83 | code = send_ok(); |
84 | if (code) | |
c8dc853f | 85 | exit(1); |
de56407f | 86 | } |
87 | } | |
88 | } |