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dlopen utility #2337

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dlopen utility #2337

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brooksdavis
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Attempts to dlopen each command line argument then sleeps. Useful for demoing the idea of plugins without a real plugin system.

TODO:

  • options for sleep time, dlopen paramaters, etc
  • manpage

bsdjhb
bsdjhb reviewed Mar 26, 2025
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The style suggestions all seem correct from the checker.

FWIW, I tend to use (void)getchar() in my test programs when I want them to hang around while I use a debugger, etc. A timeout is fine though.

bin/dlopen/dlopen.c Outdated
printf("loaded %s\n", argv[i]);
}
if (seconds != 0 && verbose)
printf("sleeping %d seconds\n", seconds);
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Suggested change
printf("sleeping %d seconds\n", seconds);
printf("sleeping for %d seconds\n", seconds);

@brooksdavis
dlopen(1): a program that dlopens its arguments
5fb093c 
Attempts to dlopen each command line argument then sleeps.  This allows
trivial demonstration of the impact of loading various libraries without
the need to write custom code.
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@brooksdavis @bsdjhb