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daemon: Don't abort when $PATH is undefined.

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* nix/nix-daemon/guix-daemon.cc (main): Check whether getenv ("PATH")
  returns NULL before blindly initializing 'search_path'.  Before that
  'guix-daemon' would abort when run in an environment where 'PATH' is
  undefined.
This commit is contained in:
Ludovic Courtès 2014-04-09 23:05:42 +02:00
parent 9132b9bd72
commit 18d9a4466c
1 changed files with 8 additions and 2 deletions
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10
nix/nix-daemon/guix-daemon.cc
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@ -257,8 +257,14 @@ main (int argc, char *argv[])
/* Hackily help 'local-store.cc' find our 'guix-authenticate' program, which
is known as 'OPENSSL_PATH' here. */
std::string search_path (getenv ("PATH"));
search_path = settings.nixLibexecDir + ":" + search_path;
std::string search_path;
search_path = settings.nixLibexecDir;
if (getenv ("PATH") != NULL)
{
search_path += ":";
search_path += getenv ("PATH");
}
setenv ("PATH", search_path.c_str (), 1);
/* Use our substituter by default. */