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Red Hat Bugzilla – Attachment 306479 Details for
Bug 432867
memory corruption due to portmap call succeeding after parent rpc_clnt has been freed
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small test program to set a blocking lock on a file
lockit.c (text/plain), 521 bytes, created by
Jeff Layton
on 2008-05-23 10:59:04 UTC
(
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Description:
small test program to set a blocking lock on a file
Filename:
MIME Type:
Creator:
Jeff Layton
Created:
2008-05-23 10:59:04 UTC
Size:
521 bytes
patch
obsolete
>#include <unistd.h> >#include <fcntl.h> >#include <stdio.h> > >int >main(int argc, char **argv) >{ > struct flock fl; > int fd, err; > > if (argc != 2) { > printf("usage: %s <filename>\n", argv[0]); > return 1; > } > > fd = open(argv[1], O_CREAT|O_RDWR, 0666); > if (fd < 0) { > perror("open"); > return 2; > } > > fl.l_type = F_WRLCK; > fl.l_whence = SEEK_SET; > fl.l_start = 0; > fl.l_len = 0; > > err = fcntl(fd, F_SETLKW, &fl); > if (err < 0) { > perror("fcntl"); > return 3; > } > > > printf("hit return to exit\n"); > getchar(); > return 0; >}
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