ann.py: Fixed searching for names beginning with "a ".
[utils.git] / serialize.c
CommitLineData
21e62b99 1#include <stdio.h>
2#include <unistd.h>
3#include <fcntl.h>
4#include <sys/file.h>
5
6int main(int argc, unsigned char **argv)
7{
8 int c;
9 int fd, locktype;
10 pid_t pid;
11 int status;
12
13 locktype = LOCK_EX;
14 while((c = getopt(argc, argv, "se")) > 0)
15 {
16 switch(c)
17 {
18 case 's':
19 locktype = LOCK_SH;
20 break;
21 case 'e':
22 locktype = LOCK_EX;
23 break;
24 default:
25 return(1);
26 }
27 }
28 if(argc - optind < 2)
29 {
30 fprintf(stderr, "Wrong number of arguments\n");
31 return(1);
32 }
33 if((fd = open(argv[optind], O_RDWR | O_CREAT, 0600)) < 0)
34 {
35 perror(argv[optind]);
36 return(1);
37 }
38 optind++;
39 flock(fd, locktype);
40 if((pid = fork()) < 0)
41 {
42 perror("fork");
43 return(1);
44 } else if(!pid) {
45 execvp(argv[optind], argv + optind);
46 perror(argv[optind]);
47 exit(127);
48 }
49 while(wait(&status) != pid);
50 flock(fd, LOCK_UN);
51 return(status);
52}