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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 = "$Header$"; | |
7da203a3 | 11 | #endif |
de56407f | 12 | |
546bc43b | 13 | #include <mit-copyright.h> |
de56407f | 14 | #include <stdio.h> |
8b3ba58e | 15 | #include <errno.h> |
c57b6bd3 | 16 | #include <sys/types.h> |
c91c8276 | 17 | #ifdef _AIX |
18 | #undef _BSD | |
19 | #endif | |
de56407f | 20 | #include <sys/wait.h> |
c91c8276 | 21 | #ifdef _AIX |
22 | #define _BSD 44 | |
23 | #endif | |
6143ee87 | 24 | #include <signal.h> |
c8dc853f | 25 | #include <gdb.h> |
2ad0a777 | 26 | #include <moira.h> |
de56407f | 27 | #include "update.h" |
de56407f | 28 | |
29 | extern CONNECTION conn; | |
994657b2 | 30 | extern int code, errno, uid, log_priority, have_authorization; |
8b3ba58e | 31 | extern char *whoami; |
32 | ||
984bd8ef | 33 | #if defined(vax) || defined(ibm032) |
34 | #define WEXITSTATUS(waitb) ((waitb).w_retcode) | |
35 | #endif | |
36 | ||
de56407f | 37 | |
38 | int | |
39 | exec_002(str) | |
40 | char *str; | |
41 | { | |
8a7d0639 | 42 | #ifdef POSIX |
984bd8ef | 43 | int waitb; |
8a7d0639 | 44 | sigset_t mask,oldmask; |
984bd8ef | 45 | #else |
de56407f | 46 | union wait waitb; |
8a7d0639 | 47 | int mask; |
984bd8ef | 48 | #endif |
8a7d0639 | 49 | int n, pid; |
de56407f | 50 | |
994657b2 | 51 | if (!have_authorization) { |
52 | reject_call(MR_PERM); | |
53 | return(0); | |
54 | } | |
8b3ba58e | 55 | if (config_lookup("noexec")) { |
56 | code = EPERM; | |
585b298c | 57 | send_object(conn, (char *)&code, INTEGER_T); |
8b3ba58e | 58 | com_err(whoami, code, "Not allowed to execute"); |
984bd8ef | 59 | return(0); |
8b3ba58e | 60 | } |
de56407f | 61 | str += 8; |
62 | while (*str == ' ') | |
63 | str++; | |
8a7d0639 | 64 | #ifdef POSIX |
65 | sigemptyset(&mask); | |
66 | sigaddset(&mask,SIGCHLD); | |
67 | sigprocmask(SIG_BLOCK,&mask,&oldmask); | |
68 | #else | |
6143ee87 | 69 | mask = sigblock(sigmask(SIGCHLD)); |
8a7d0639 | 70 | #endif |
de56407f | 71 | pid = fork(); |
72 | switch (pid) { | |
73 | case -1: | |
74 | n = errno; | |
8a7d0639 | 75 | #ifdef POSIX |
76 | sigprocmask(SIG_UNBLOCK,&oldmask,&mask); | |
77 | #else | |
6143ee87 | 78 | sigsetmask(mask); |
8a7d0639 | 79 | #endif |
de56407f | 80 | log_priority = log_ERROR; |
81 | com_err(whoami, errno, ": can't fork to run install script"); | |
82 | code = send_object(conn, (char *)&n, INTEGER_T); | |
83 | if (code) | |
84 | exit(1); | |
984bd8ef | 85 | return(0); |
de56407f | 86 | case 0: |
8b3ba58e | 87 | if (setuid(uid) < 0) { |
88 | com_err(whoami, errno, "Unable to setuid to %d\n", uid); | |
89 | exit(1); | |
90 | } | |
8a7d0639 | 91 | #ifdef POSIX |
92 | sigprocmask(SIG_UNBLOCK,&oldmask,&mask); | |
93 | #else | |
e19df9fb | 94 | sigsetmask(mask); |
8a7d0639 | 95 | #endif |
de56407f | 96 | execlp(str, str, (char *)NULL); |
97 | n = errno; | |
8a7d0639 | 98 | #ifdef POSIX |
99 | sigprocmask(SIG_UNBLOCK,&oldmask,&mask); | |
100 | #else | |
6143ee87 | 101 | sigsetmask(mask); |
8a7d0639 | 102 | #endif |
de56407f | 103 | log_priority = log_ERROR; |
104 | com_err(whoami, n, ": %s", str); | |
105 | (void) send_object(conn, (char *)&n, INTEGER_T); | |
106 | exit(1); | |
107 | default: | |
108 | do { | |
109 | n = wait(&waitb); | |
110 | } while (n != -1 && n != pid); | |
8a7d0639 | 111 | #ifdef POSIX |
112 | sigprocmask(SIG_UNBLOCK,&oldmask,&mask); | |
113 | #else | |
6143ee87 | 114 | sigsetmask(mask); |
8a7d0639 | 115 | #endif |
116 | #ifdef POSIX | |
4aba574b | 117 | if ( (WIFEXITED(waitb) && (WEXITSTATUS(waitb)!=0)) || WIFSIGNALED(waitb) ) { |
de56407f | 118 | log_priority = log_ERROR; |
585b298c | 119 | if (WIFSIGNALED(waitb)) { |
120 | n = MR_COREDUMP; | |
121 | com_err(whoami, n, " child exited on signal %d", | |
122 | WTERMSIG(waitb)); | |
123 | } else { | |
124 | n = WEXITSTATUS(waitb) + ERROR_TABLE_BASE_sms; | |
125 | com_err(whoami, n, " child exited with status %d", | |
126 | WEXITSTATUS(waitb)); | |
127 | } | |
8a7d0639 | 128 | #else |
129 | if (waitb.w_status) { | |
130 | n = waitb.w_retcode + ERROR_TABLE_BASE_sms; | |
131 | log_priority = log_ERROR; | |
132 | com_err(whoami, n, " child exited with status %d", | |
133 | waitb.w_retcode); | |
134 | #endif | |
de56407f | 135 | code = send_object(conn, (char *)&n, INTEGER_T); |
c8dc853f | 136 | if (code) { |
de56407f | 137 | exit(1); |
c8dc853f | 138 | } |
139 | } else { | |
de56407f | 140 | code = send_ok(); |
141 | if (code) | |
c8dc853f | 142 | exit(1); |
de56407f | 143 | } |
144 | } | |
145 | } |