Make improvements

- Add rusage to redbean Lua API
- Add more redbean documentation
- Add pledge() to redbean Lua API
- Polyfill OpenBSD pledge() for Linux
- Increase PATH_MAX limit to 1024 characters
- Untrack sibling processes after fork() on Windows

libc/dns/gethoststxt.c

@@ -57,7 +57,7 @@ static textwindows dontinline char *GetNtHostsTxtPath(char *pathbuf,
 const struct HostsTxt *GetHostsTxt(void) {
   FILE *f;
   const char *path;
-  char pathbuf[PATH_MAX + 1];
+  char pathbuf[PATH_MAX];
   struct HostsTxtInitialStaticMemory *init;
   init = &g_hoststxt_init;
   if (!g_hoststxt) {

libc/dns/lookupprotobyname.c

@@ -51,7 +51,7 @@ int LookupProtoByName(const char *protoname, char *buf, size_t bufsize,
   const char *path;
   size_t linesize;
   int found, result;
-  char pathbuf[PATH_MAX + 1];
+  char pathbuf[PATH_MAX];
   char *name, *number, *alias, *comment, *tok;
   if (!(path = filepath)) {
     path = "/etc/protocols";

libc/dns/lookupprotobynumber.c

@@ -55,7 +55,7 @@ int LookupProtoByNumber(const int protonum, char *buf, size_t bufsize,
   int found;
   size_t linesize;
   const char *path;
-  char pathbuf[PATH_MAX + 1];
+  char pathbuf[PATH_MAX];
   char *name, *number, *comment, *tok;
   if (!(path = filepath)) {
     path = "/etc/protocols";

libc/dns/lookupservicesbyname.c

@@ -56,7 +56,7 @@ int LookupServicesByName(const char *servname, char *servproto,
   const char *path;
   size_t linesize;
   int found, result;
-  char pathbuf[PATH_MAX + 1];
+  char pathbuf[PATH_MAX];
   char *name, *port, *proto, *alias, *comment, *tok;
   if (!(path = filepath)) {
     path = "/etc/services";

libc/dns/lookupservicesbyport.c

@@ -59,7 +59,7 @@ int LookupServicesByPort(const int servport, char *servproto,
                          const char *filepath) {
   FILE *f;
   char *line;
-  char pathbuf[PATH_MAX + 1];
+  char pathbuf[PATH_MAX];
   const char *path;
   size_t linesize;
   int found;