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fix: harden the per-user IPC endpoint

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Hojun-Cho
2026-08-12 16:08:23 +09:00
parent 4120f90736
commit 432df3730c
9 changed files with 96 additions and 46 deletions
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30
tests/ipc_test.c
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@@ -1,3 +1,7 @@
#define _POSIX_C_SOURCE 200809L
#include <stdlib.h>
#include <unistd.h>
#include "test.h"
void
@@ -21,3 +25,29 @@ ipc_masks_modifiers(struct ct *t)
CT_EQ_UINT(t, 0, key);
CT_CHECK(t, ipcreqreset(buf));
}
void
ipc_runtime_path(struct ct *t)
{
char buf[128], fallback[128], *old, *saved;
old = getenv("XDG_RUNTIME_DIR");
saved = old == nil ? nil : strdup(old);
setenv("XDG_RUNTIME_DIR", "/tmp/strans-runtime-test", 1);
CT_EQ_INT(t, 0, ipcpath(buf, sizeof buf));
CT_EQ_STR(t, "/tmp/strans-runtime-test/strans.sock", buf);
setenv("XDG_RUNTIME_DIR", "/tmp/strans-runtime-test/", 1);
CT_EQ_INT(t, 0, ipcpath(buf, sizeof buf));
CT_EQ_STR(t, "/tmp/strans-runtime-test/strans.sock", buf);
setenv("XDG_RUNTIME_DIR", "relative", 1);
CT_EQ_INT(t, 0, ipcpath(buf, sizeof buf));
snprint(fallback, sizeof fallback, "/tmp/strans.%d", getuid());
CT_EQ_STR(t, fallback, buf);
CT_EQ_INT(t, -1, ipcpath(buf, 4));
CT_EQ_INT(t, -1, ipcpath(nil, sizeof buf));
if(saved != nil){
setenv("XDG_RUNTIME_DIR", saved, 1);
free(saved);
}else
unsetenv("XDG_RUNTIME_DIR");
}