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Note to self: Test code before committing...
[doldaconnect.git]
/
config
/
locktouch.c
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <errno.h>
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int main(int argc, char **argv)
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{
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int fd;
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if(argc < 2)
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{
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fprintf(stderr, "usage: locktouch lockfile\n");
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exit(1);
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}
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if((fd = open(argv[1], O_CREAT | O_EXCL, 0666)) < 0)
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{
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if(errno != EEXIST)
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{
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perror(argv[1]);
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exit(2);
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}
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exit(1);
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}
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close(fd);
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return(0);
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}