Fix space path bug in printvideo.com (#11)

In addition to removing the URI downloading support. It was originally
intended to have this command play YouTube videos too but that support
was never completed. Latest release binaries can be obtained via:

    wget https://justine.lol/printvideo.com      # 284k ape executable
    wget https://justine.lol/printvideo.com.dbg

tool/viz/printvideo.c

@@ -94,8 +94,6 @@
 #include "libc/time/time.h"
 #include "libc/unicode/unicode.h"
 #include "libc/x/x.h"
-#include "net/http/http.h"
-#include "net/http/uri.h"
 #include "third_party/avir/lanczos.h"
 #include "third_party/getopt/getopt.h"
 #include "third_party/stb/stb_image_resize.h"
@@ -112,13 +110,9 @@
 #define MAX_FRAMERATE (1 / 60.)
 
 #define USAGE \
-  " [FLAGS] [URI]\n\
+  " [FLAGS] MPG\n\
 Renders motion picture to teletypewriters.\n\
 \n\
-Arguments:\n\
-  - URI can be file.mpg\n\
-  - URI can be zip://αpε-embedded-object.mpg\n\
-\n\
 Flags & Keyboard Shortcuts:\n\
   -s         stats\n\
   -t         true color\n\
@@ -240,12 +234,6 @@ static const struct itimerval kTimerHalfSecordSingleShot = {
     {0, 500000},
 };
 
-static const struct addrinfo kResolvHints = {
-    .ai_family = AF_INET,
-    .ai_socktype = SOCK_STREAM,
-    .ai_protocol = IPPROTO_TCP,
-};
-
 static const struct NamedVector kPrimaries[] = {
     {"BT.601", &kBt601Primaries},
     {"BT.709", &kBt709Primaries},
@@ -268,7 +256,6 @@ static FILE *fsock_;
 static float gamma_;
 static int volscale_;
 static enum Blur blur_;
-static struct Uri uri_;
 static enum Sharp sharp_;
 static jmp_buf jb_, jbi_;
 static double pary_, parx_;
@@ -277,20 +264,18 @@ static struct YCbCr *ycbcr_;
 static bool emboss_, sobel_;
 static volatile int playpid_;
 static struct winsize wsize_;
-static enum UriScheme scheme_;
 static float hue_, sat_, lit_;
 static struct FrameBuffer fb0_;
 static unsigned chans_, srate_;
 static volatile bool ignoresigs_;
 static size_t dh_, dw_, framecount_;
-static struct UriSlice urisegmem_[8];
 static struct FrameCountRing fcring_;
 static volatile bool resized_, piped_;
 static int lumakernel_, chromakernel_;
 static openspeaker_f tryspeakerfns_[4];
 static int primaries_, lighting_, swing_;
 static uint64_t t1, t2, t3, t4, t5, t6, t8;
-static const char *sox_, *ffplay_, *uriarg_;
+static const char *sox_, *ffplay_, *patharg_;
 static struct GuardedBuffer xtcodes_, audio_;
 static struct VtFrame vtframe_[2], *f1_, *f2_;
 static struct Graphic graphic_[2], *g1_, *g2_;
@@ -301,8 +286,8 @@ static int16_t pcm_[PLM_AUDIO_SAMPLES_PER_FRAME * 2 / 8][8];
 static int16_t pcmscale_[PLM_AUDIO_SAMPLES_PER_FRAME * 2 / 8][8];
 static bool fullclear_, historyclear_, tuned_, yonly_, gotvideo_;
 static int homerow_, lastrow_, playfd_, infd_, outfd_, nullfd_, speakerfails_;
-static char host_[DNS_NAME_MAX + 1], port_[8], path_[PATH_MAX], status_[7][200],
-    logpath_[PATH_MAX], fifopath_[PATH_MAX], chansstr_[16], sratestr_[16];
+static char host_[DNS_NAME_MAX + 1], status_[7][200], logpath_[PATH_MAX],
+    fifopath_[PATH_MAX], chansstr_[16], sratestr_[16], port_[8];
 
 static void OnCtrlC(void) {
   longjmp(jb_, 1);
@@ -863,112 +848,11 @@ static void OnVideo(plm_t *mpeg, plm_frame_t *pf, void *user) {
   }
 }
 
-static void ParseUriOrDie(const char *uristr) {
-  static bool once;
-  if (!once) {
-    uri_.segs.n = ARRAYLEN(urisegmem_);
-    uri_.segs.p = urisegmem_;
-  }
-  CHECK_NE(-1, uriparse(&uri_, uristr, strlen(uristr)));
-  scheme_ = urischeme(uri_.scheme, uristr);
-  urislice2cstr(host_, sizeof(host_), uri_.host, uristr, NULL);
-  urislice2cstr(port_, sizeof(port_), uri_.port, uristr, "80");
-  urislice2cstr(path_, sizeof(path_), uripath(&uri_), uristr, NULL);
-}
-
-static int Rebuffer(FILE *f) {
-  ssize_t rc;
-  size_t got;
-  struct iovec iov[2];
-  if (f->beg == f->end) {
-    f->beg = f->end = 0;
-  }
-  if (f->beg <= f->end) {
-    if (f->beg) {
-      iov[0].iov_base = f->buf + f->end;
-      iov[0].iov_len = f->size - f->end;
-      iov[1].iov_base = f->buf;
-      iov[1].iov_len = f->beg - 1;
-      rc = readv(f->fd, iov, 2);
-    } else {
-      rc = read(f->fd, f->buf, f->size - (f->end - f->beg) - 1);
-    }
-  } else {
-    if (f->end + 1 == f->beg) return 0;
-    rc = read(f->fd, f->buf + f->end, f->beg - f->end - 1);
-  }
-  if (rc != -1) {
-    if (rc) {
-      got = rc;
-      f->end = (f->end + got) & (f->size - 1);
-      return got;
-    } else {
-      return __fseteof(f);
-    }
-  } else if (errno == EINTR || errno == EAGAIN) {
-    return 0;
-  } else {
-    return __fseterrno(f);
-  }
-}
-
-static FILE *OpenVideoHttp(void) {
-  FILE *f;
-  int sock;
-  const char *req;
-  char resp[1500];
-  struct addrinfo *ai;
-  uint32_t reqsize, respsize, resphdrsize;
-  CHECK_EQ(0, getaddrinfo(host_, port_, &kResolvHints, &ai));
-  CHECK_NE(-1, (sock = socketconnect(ai, O_CLOEXEC /* | O_NONBLOCK */)));
-  freeaddrinfo(ai);
-  respsize = sizeof(resp);
-  reqsize = strlen((req = gc(xstrcat("GET ", path_,
-                                     " HTTP/1.1\r\n"
-                                     "Host: ",
-                                     host_,
-                                     "\r\n"
-                                     "Connection: close\r\n"
-                                     "Content-Length: 0\r\n"
-                                     "User-Agent: printvideo/1.o\r\n"
-                                     "\r\n"))));
-  CHECK_NE(-1, NegotiateHttpRequest(sock, req, &reqsize, resp, &respsize,
-                                    &resphdrsize, true, 2));
-  CHECK_NOTNULL(strstr(resp, "200 OK"));
-  CHECK_NOTNULL(strstr(resp, "Content-Type: video/mpeg"));
-  f = xcalloc(1, sizeof(FILE));
-  f->buf = memcpy(xvalloc((f->size = NETBUFSIZ)), resp + resphdrsize,
-                  (f->end = respsize - resphdrsize));
-  f->bufmode = _IOFBF;
-  f->iomode = O_RDONLY;
-  f->reader = Rebuffer;
-  f->fd = sock;
-  fsock_ = f;
-  do {
-    snprintf(status_[1], sizeof(status_[1]), VEIL("r", "\r\e[K%,d\r"),
-             favail(fsock_));
-    if (ttymode_) ttysend(outfd_, status_[1]);
-    if (freplenish(fsock_) <= 0) break;
-  } while (favail(fsock_) < HALF(NETBUFSIZ));
-  if (ttymode_) ttysend(outfd_, "\r\e[K");
-  f->state = 0;
-  return f;
-}
-
 static void OpenVideo(void) {
   size_t yn, xn;
   playfd_ = -1;
-  switch (scheme_) {
-    case kUriSchemeHttps:
-      FATALF("no https support");
-    case kUriSchemeHttp:
-      CHECK_NOTNULL((plm_ = plm_create_with_file(OpenVideoHttp(), true)));
-      break;
-    default:
-      LOGF("%s(%`'s)", "OpenVideo", path_);
-      CHECK_NOTNULL((plm_ = plm_create_with_filename(path_)));
-      break;
-  }
+  LOGF("%s(%`'s)", "OpenVideo", patharg_);
+  CHECK_NOTNULL((plm_ = plm_create_with_filename(patharg_)));
   swing_ = 219;
   xn = plm_get_width(plm_);
   yn = plm_get_height(plm_);
@@ -1606,7 +1490,7 @@ int main(int argc, char *argv[]) {
   GetOpts(argc, argv);
   if (!tuned_) PickDefaults();
   if (optind == argc) PrintUsage(EX_USAGE, stderr);
-  uriarg_ = argv[optind];
+  patharg_ = argv[optind];
   sox_ = commandvenv("SOX", "sox");
   ffplay_ = commandvenv("FFPLAY", "ffplay");
   infd_ = STDIN_FILENO;
@@ -1632,7 +1516,6 @@ int main(int argc, char *argv[]) {
     TryToOpenFrameBuffer();
     RenounceSpecialPrivileges();
     if (t2 > t1) longjmp(jb_, 1);
-    ParseUriOrDie(uriarg_);
     OpenVideo();
     DimensionDisplay();
     starttime_ = nowl();