56de2bcd43
https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948 this can do it nicely. Signed-off-by: Anton Arapov <anton@deadbeef.mx>
14 lines
442 B
C
14 lines
442 B
C
#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#define assert_success(e) do { if ((e) < 0) { perror(#e); abort(); } } while (0)
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int main(int argc, char **argv) {
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putenv("==TEST1");
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#error Illegal environment variable name `=` (cannot contain `=`)
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assert_success(setenv("", "TEST2", 0));
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#error Environment variable name can't be empty.
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argv[0] = "/send/me/flags";
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return execv("/send/me/flags", argv);
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}
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