1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#include <sys/types.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <sys/wait.h>
#include "lutil.h"
#define SHELL "/bin/sh"
int execsh(cmd,in,out,err)
char *cmd,*in,*out,*err;
{
int pid,status,rc,sverr;
loginf("Execute command: %s",S(cmd));
fflush(stdout);
fflush(stderr);
if ((pid=fork()) == 0)
{
if (in)
{
close(0);
if (open(in,O_RDONLY) != 0)
{
logerr("$Reopen of stdin to %s failed",S(in));
exit(-1);
}
}
if (out)
{
close(1);
if (open(out,O_WRONLY | O_APPEND | O_CREAT,0600) != 1)
{
logerr("$Reopen of stdout to %s failed",S(out));
exit(-1);
}
}
if (err)
{
close(2);
if (open(err,O_WRONLY | O_APPEND | O_CREAT,0600) != 2)
{
logerr("$Reopen of stderr to %s failed",S(err));
exit(-1);
}
}
rc=execl(SHELL,"sh","-c",cmd,NULL);
logerr("$Exec \"%s\" returned %d",S(cmd),rc);
exit(-1);
}
do
{
rc=wait(&status);
sverr=errno;
debug(2,"$Wait returned %d, status %d,%d",
rc,status>>8,status&0xff);
}
while (((rc > 0) && (rc != pid)) || ((rc == -1) && (sverr == EINTR)));
if (rc == -1)
{
logerr("$Wait returned %d, status %d,%d",
rc,status>>8,status&0xff);
return -1;
}
debug(2,"status=%d",status);
return status;
}
|
