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Only re-open executable as O_RDWR if .ape present

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This attempts to avoid a SIGSEGV in environments where the original
executable cannot be reopened as O_RDWR (AWS Lambda)

(hopefully) fixes #233
This commit is contained in:
Robert Hencke 2021-08-08 07:04:13 -04:00
parent 28a592f2d4
commit 9f4a4b615d
1 changed files with 2 additions and 3 deletions
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5
tool/net/redbean.c
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@ -5035,7 +5035,6 @@ static int LuaGetComment(lua_State *L) {
return 1; return 1;
} }
static int LuaGetHostOs(lua_State *L) { static int LuaGetHostOs(lua_State *L) {
const char *s = NULL; const char *s = NULL;
if (IsLinux()) { if (IsLinux()) {
@ -6472,9 +6471,9 @@ static void RestoreApe(void) {
if (IsOpenbsd()) return; /* TODO */ if (IsOpenbsd()) return; /* TODO */
if (IsNetbsd()) return; /* TODO */ if (IsNetbsd()) return; /* TODO */
if (endswith(zpath, ".com.dbg")) return; if (endswith(zpath, ".com.dbg")) return;
close(zfd);
zfd = OpenExecutable();
if ((a = GetAssetZip("/.ape", 5)) && (p = LoadAsset(a, &n))) { if ((a = GetAssetZip("/.ape", 5)) && (p = LoadAsset(a, &n))) {
close(zfd);
zfd = OpenExecutable();
write(zfd, p, n); write(zfd, p, n);
free(p); free(p);
} else { } else {