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!1230 加载libappspawn_helper后从env中取消对它的preload配置

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Merge pull request !1230 from Caoruihong/master
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openharmony_ci 2024-06-24 08:12:20 +00:00 committed by Gitee
commit 157014604b
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1 changed files with 14 additions and 3 deletions
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17
standard/appspawn_main.c
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@ -28,17 +28,28 @@
static void CheckPreload(char *const argv[])
{
char buf[256] = APPSPAWN_PRELOAD; // 256 is enough in most cases
char *preload = getenv("LD_PRELOAD");
if (preload && strstr(preload, APPSPAWN_PRELOAD)) {
char *pos = preload ? strstr(preload, APPSPAWN_PRELOAD) : NULL;
if (pos) {
int len = pos - preload;
len = sprintf_s(buf, sizeof(buf), "%.*s%s", len, preload, pos + strlen(APPSPAWN_PRELOAD));
APPSPAWN_CHECK(len >= 0, return, "preload too long?: %{public}s", preload);
if (len == 0) {
int ret = unsetenv("LD_PRELOAD");
APPSPAWN_CHECK(ret == 0, return, "unsetenv fail(%{public}d)", errno);
} else {
int ret = setenv("LD_PRELOAD", buf, true);
APPSPAWN_CHECK(ret == 0, return, "setenv fail(%{public}d): %{public}s", errno, buf);
}
return;
}
char buf[128] = APPSPAWN_PRELOAD; // 128 is enough in most cases
if (preload && preload[0]) {
int len = sprintf_s(buf, sizeof(buf), "%s:" APPSPAWN_PRELOAD, preload);
APPSPAWN_CHECK(len > 0, return, "preload too long: %{public}s", preload);
}
int ret = setenv("LD_PRELOAD", buf, true);
APPSPAWN_CHECK(ret == 0, return, "setenv fail: %{public}s", buf);
APPSPAWN_CHECK(ret == 0, return, "setenv fail(%{public}d): %{public}s", errno, buf);
ssize_t nread = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
APPSPAWN_CHECK(nread != -1, return, "readlink fail: /proc/self/exe: %{public}d", errno);
buf[nread] = 0;