Author: Jason A. Donenfeld <Jason@zx2c4.com>
ui-snapshot: do not access $HOME It's a bit tedious to have to do this here too. If we encounter other issues with $HOME down the line, I'll look into adding some nice utility functions to handle this, or perhaps giving up on the hope that we could keep $HOME defined for scripts. This commit additionally adds a test case, should the issue surface again. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
tests/t0109-gitconfig.sh | 1 + ui-snapshot.c | 9 +++++++++
diff --git a/tests/t0109-gitconfig.sh b/tests/t0109-gitconfig.sh index 24b2942f260d8201782f2c82d1cf0b1e7fff9120..c9d16a258aee945dc53077489d1c67a221f95630 100755 --- a/tests/t0109-gitconfig.sh +++ b/tests/t0109-gitconfig.sh @@ -37,5 +37,6 @@ test_no_home_access_success foo/tree/file-1 test_no_home_access_success foo/commit test_no_home_access_success foo/diff test_no_home_access_success foo/patch +test_no_home_access_success foo/snapshot/master.tar.gz test_done diff --git a/ui-snapshot.c b/ui-snapshot.c index 42b7489d5b4048248b9223cfc14a437fabdeba09..8a720801004cca005287c2f9457340da8703ef81 100644 --- a/ui-snapshot.c +++ b/ui-snapshot.c @@ -16,6 +16,7 @@ static int write_archive_type(const char *format, const char *hex, const char *prefix) { struct argv_array argv = ARGV_ARRAY_INIT; const char **nargv; + char *user_home, *xdg_home; int result; argv_array_push(&argv, "snapshot"); argv_array_push(&argv, format); @@ -38,7 +39,15 @@ nargv = xmalloc(sizeof(char *) * (argv.argc + 1)); /* argv_array guarantees a trailing NULL entry. */ memcpy(nargv, argv.argv, sizeof(char *) * (argv.argc + 1)); + user_home = getenv("HOME"); + xdg_home = getenv("XDG_CONFIG_HOME"); + unsetenv("HOME"); + unsetenv("XDG_CONFIG_HOME"); result = write_archive(argv.argc, nargv, NULL, 1, NULL, 0); + if (user_home) + setenv("HOME", user_home, 1); + if (xdg_home) + setenv("XDG_CONFIG_HOME", xdg_home, 1); argv_array_clear(&argv); free(nargv); return result;