Commit | Line | Data |
---|---|---|
d78f3cba SL |
1 | #ifndef lint |
2 | static char sccsid[] = "@(#)shio.c 5.1 (Berkeley) %G%"; | |
3 | #endif | |
4 | ||
5 | #include "uucp.h" | |
6 | #include <signal.h> | |
7 | ||
8 | ||
9 | /******* | |
10 | * shio(cmd, fi, fo, user) execute shell of command with | |
11 | * char *cmd, *fi, *fo; fi and fo as standard input/output | |
12 | * char *user; user name | |
13 | * | |
14 | * return codes: | |
15 | * 0 - ok | |
16 | * non zero - failed - status from child | |
17 | */ | |
18 | ||
19 | shio(cmd, fi, fo, user) | |
20 | char *cmd, *fi, *fo, *user; | |
21 | { | |
22 | int status, f; | |
23 | int uid, pid, ret; | |
24 | char path[MAXFULLNAME]; | |
25 | ||
26 | if (fi == NULL) | |
27 | fi = "/dev/null"; | |
28 | if (fo == NULL) | |
29 | fo = "/dev/null"; | |
30 | ||
31 | DEBUG(3, "shio - %s\n", cmd); | |
32 | if ((pid = fork()) == 0) { | |
33 | signal(SIGINT, SIG_IGN); | |
34 | signal(SIGHUP, SIG_IGN); | |
35 | signal(SIGQUIT, SIG_IGN); | |
36 | signal(SIGKILL, SIG_IGN); | |
37 | close(Ifn); | |
38 | close(Ofn); | |
39 | close(0); | |
40 | if (user == NULL | |
41 | || (gninfo(user, &uid, path) != 0) | |
42 | || setuid(uid)) | |
43 | setuid(getuid()); | |
44 | f = open(subfile(fi), 0); | |
45 | if (f != 0) | |
46 | exit(f); | |
47 | close(1); | |
48 | f = creat(subfile(fo), 0666); | |
49 | if (f != 1) | |
50 | exit(f); | |
51 | execl(SHELL, "sh", "-c", cmd, (char *)0); | |
52 | exit(100); | |
53 | } | |
54 | while ((ret = wait(&status)) != pid && ret != -1); | |
55 | DEBUG(3, "status %d\n", status); | |
56 | return(status); | |
57 | } |