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slave: unsetenv() env vars that have been set to the empty string

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That is, users can now *clear* environment variables by doing:

  [environment]
  VAR=””

Note that the quotes are required.

Closes #1225
This commit is contained in:
Daniel Eklöf 2022-12-01 19:43:38 +01:00
parent 646314469a
commit ccfb953bb0
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GPG key ID: 5BBD4992C116573F
3 changed files with 24 additions and 13 deletions
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11
slave.c
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@ -359,8 +359,15 @@ slave_spawn(int ptmx, int argc, const char *cwd, char *const *argv,
#endif
if (extra_env_vars != NULL) {
tll_foreach(*extra_env_vars, it)
setenv(it->item.name, it->item.value, 1);
tll_foreach(*extra_env_vars, it) {
const char *name = it->item.name;
const char *value = it->item.value;
if (strlen(value) == 0)
unsetenv(name);
else
setenv(name, value, 1);
}
}
char **_shell_argv = NULL;