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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 | ||
984bd8ef | 27 | #if defined(vax) || defined(ibm032) |
28 | #define WEXITSTATUS(waitb) ((waitb).w_retcode) | |
29 | #endif | |
30 | ||
de56407f | 31 | |
32 | int | |
33 | exec_002(str) | |
34 | char *str; | |
35 | { | |
8a7d0639 | 36 | #ifdef POSIX |
984bd8ef | 37 | int waitb; |
8a7d0639 | 38 | sigset_t mask,oldmask; |
984bd8ef | 39 | #else |
de56407f | 40 | union wait waitb; |
8a7d0639 | 41 | int mask; |
984bd8ef | 42 | #endif |
8a7d0639 | 43 | int n, pid; |
de56407f | 44 | |
8b3ba58e | 45 | if (config_lookup("noexec")) { |
46 | code = EPERM; | |
47 | code = send_object(conn, (char *)&code, INTEGER_T); | |
48 | com_err(whoami, code, "Not allowed to execute"); | |
984bd8ef | 49 | return(0); |
8b3ba58e | 50 | } |
de56407f | 51 | str += 8; |
52 | while (*str == ' ') | |
53 | str++; | |
8a7d0639 | 54 | #ifdef POSIX |
55 | sigemptyset(&mask); | |
56 | sigaddset(&mask,SIGCHLD); | |
57 | sigprocmask(SIG_BLOCK,&mask,&oldmask); | |
58 | #else | |
6143ee87 | 59 | mask = sigblock(sigmask(SIGCHLD)); |
8a7d0639 | 60 | #endif |
de56407f | 61 | pid = fork(); |
62 | switch (pid) { | |
63 | case -1: | |
64 | n = errno; | |
8a7d0639 | 65 | #ifdef POSIX |
66 | sigprocmask(SIG_UNBLOCK,&oldmask,&mask); | |
67 | #else | |
6143ee87 | 68 | sigsetmask(mask); |
8a7d0639 | 69 | #endif |
de56407f | 70 | log_priority = log_ERROR; |
71 | com_err(whoami, errno, ": can't fork to run install script"); | |
72 | code = send_object(conn, (char *)&n, INTEGER_T); | |
73 | if (code) | |
74 | exit(1); | |
984bd8ef | 75 | return(0); |
de56407f | 76 | case 0: |
8b3ba58e | 77 | if (setuid(uid) < 0) { |
78 | com_err(whoami, errno, "Unable to setuid to %d\n", uid); | |
79 | exit(1); | |
80 | } | |
8a7d0639 | 81 | #ifdef POSIX |
82 | sigprocmask(SIG_UNBLOCK,&oldmask,&mask); | |
83 | #else | |
e19df9fb | 84 | sigsetmask(mask); |
8a7d0639 | 85 | #endif |
de56407f | 86 | execlp(str, str, (char *)NULL); |
87 | n = errno; | |
8a7d0639 | 88 | #ifdef POSIX |
89 | sigprocmask(SIG_UNBLOCK,&oldmask,&mask); | |
90 | #else | |
6143ee87 | 91 | sigsetmask(mask); |
8a7d0639 | 92 | #endif |
de56407f | 93 | log_priority = log_ERROR; |
94 | com_err(whoami, n, ": %s", str); | |
95 | (void) send_object(conn, (char *)&n, INTEGER_T); | |
96 | exit(1); | |
97 | default: | |
98 | do { | |
99 | n = wait(&waitb); | |
100 | } while (n != -1 && n != pid); | |
8a7d0639 | 101 | #ifdef POSIX |
102 | sigprocmask(SIG_UNBLOCK,&oldmask,&mask); | |
103 | #else | |
6143ee87 | 104 | sigsetmask(mask); |
8a7d0639 | 105 | #endif |
106 | #ifdef POSIX | |
107 | if (WIFEXITED(waitb)) { | |
984bd8ef | 108 | n = WEXITSTATUS(waitb) + ERROR_TABLE_BASE_sms; |
de56407f | 109 | log_priority = log_ERROR; |
984bd8ef | 110 | com_err(whoami, n, " child exited with status %d", |
111 | WEXITSTATUS(waitb)); | |
8a7d0639 | 112 | #else |
113 | if (waitb.w_status) { | |
114 | n = waitb.w_retcode + ERROR_TABLE_BASE_sms; | |
115 | log_priority = log_ERROR; | |
116 | com_err(whoami, n, " child exited with status %d", | |
117 | waitb.w_retcode); | |
118 | #endif | |
de56407f | 119 | code = send_object(conn, (char *)&n, INTEGER_T); |
c8dc853f | 120 | if (code) { |
de56407f | 121 | exit(1); |
c8dc853f | 122 | } |
123 | } else { | |
de56407f | 124 | code = send_ok(); |
125 | if (code) | |
c8dc853f | 126 | exit(1); |
de56407f | 127 | } |
128 | } | |
129 | } |