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by alkonaut
660 days ago
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Really the weirdness isn't that main is invoked with the program name as argv[0]. The weirdness comes not in main() but in execv. Shouldn't execv have just taken the user provided arguments, prepended the program name (as provided by the OS) and then invoke the main function of the program with that array? The busybox argument or shutdown/reboot explains why the name of a symlinked binary is helpful as argv[0]. But does the busybox/shutdown case explain why the execv lets the user set the argv[0] value to anything other than what the path says? |
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