commit 75659fd548cbb6d597c9cf3fc6748f9771a746e9 Author: Nick Mathewson nickm@torproject.org Date: Fri Sep 15 14:26:59 2017 -0400

Use different variable names for pw_uid usages

Catalyst points out that using pw_uid for two different purposes here is likely to be confusing. --- src/common/util.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/src/common/util.c b/src/common/util.c index 40f05468d..6b1b4296b 100644 --- a/src/common/util.c +++ b/src/common/util.c @@ -2323,21 +2323,27 @@ check_private_dir,(const char *dirname, cpd_check_t check, running_gid = getgid(); } if (st.st_uid != running_uid) { - const struct passwd *pw_uid = NULL; - char *process_ownername = NULL; + char *process_ownername = NULL, *file_ownername = NULL;

- pw_uid = tor_getpwuid(running_uid); - process_ownername = pw_uid ? tor_strdup(pw_uid->pw_name) : - tor_strdup("<unknown>"); + { + const struct passwd *pw_running = tor_getpwuid(running_uid); + process_ownername = pw_running ? tor_strdup(pw_running->pw_name) : + tor_strdup("<unknown>"); + }

- pw_uid = tor_getpwuid(st.st_uid); + { + const struct passwd *pw_stat = tor_getpwuid(st.st_uid); + file_ownername = pw_stat ? tor_strdup(pw_stat->pw_name) : + tor_strdup("<unknown>"); + }

log_warn(LD_FS, "%s is not owned by this user (%s, %d) but by " "%s (%d). Perhaps you are running Tor as the wrong user?", dirname, process_ownername, (int)running_uid, - pw_uid ? pw_uid->pw_name : "<unknown>", (int)st.st_uid); + file_ownername, (int)st.st_uid);

tor_free(process_ownername); + tor_free(file_ownername); close(fd); return -1; }