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Allow setting default session directory via environment variable #46

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Allow setting default session directory via environment variable #46

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7 changes: 7 additions & 0 deletions atch.c
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Original file line number Diff line number Diff line change
Expand Up @@ -36,10 +36,17 @@ const char *session_shortname(void)
/* Returns the directory where session sockets are stored. */
void get_session_dir(char *buf, size_t size)
{
const char *dir_env = getenv("ATCH_SESSION_DIR");
const char *home = getenv("HOME");
const char *base = strrchr(progname, '/');
struct passwd *pw;

/* Allow override via ATCH_SESSION_DIR environment variable. */
if (dir_env && *dir_env) {
snprintf(buf, size, "%s", dir_env);
return;
}

base = base ? base + 1 : progname;

/* If $HOME is unset or empty, try the passwd database. */
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