diff --git a/src/gmnlm.c b/src/gmnlm.c

index d5cb2dc29f9ceb448622d5c36b7b73f0ca985bcb..5d7892b83f7914da46b08100014db6211e36173a 100644

--- a/src/gmnlm.c

+++ b/src/gmnlm.c

@@ -11,6 +11,7 @@ #include <stdio.h>

#include <string.h>

#include <sys/ioctl.h>

#include <sys/stat.h>

+#include <sys/wait.h>

#include <termios.h>

#include <unistd.h>

#include "gmni.h"

@@ -79,6 +80,7 @@ "m\tSave bookmark\n"

"M\tBrowse bookmarks\n"

"r\tReload the page\n"

"d <path>\tDownload page to <path>\n"

• "|\tPipe page into program\n"

"\n"

"Other commands include:\n\n"

"<Enter>\tread more lines\n"

@@ -309,6 +311,55 @@ }

return strcmp(&str[strl - suffl], suff) == 0;

}

+static void

+pipe_resp(FILE *out, struct gemini_response resp, char *cmd) {

• char buf[BUFSIZ];

• int pfd[2];

• if (pipe(pfd) == -1) {

•   perror("pipe");
  

•   return;
  

• }

• pid_t pid;

• switch ((pid = fork())) {

• case -1:

•   perror("fork");
  

•   return;
  

• case 0:

•   close(pfd[1]);
  

•   dup2(pfd[0], STDIN_FILENO);
  

•   close(pfd[0]);
  

•   execlp("sh", "sh", "-c", cmd);
  

•   perror("exec");
  

•   _exit(1);
  

• }

• close(pfd[0]);

• FILE *f = fdopen(pfd[1], "w");

• // XXX: may affect history, do we care?

• for (int n = 1; n > 0;) {

•   n = BIO_read(resp.bio, buf, BUFSIZ);
  

•   if (n == -1) {
  

•   	fprintf(stderr, "Error: read\n");
  

•   	return;
  

•   }
  

•   ssize_t w = 0;
  

•   while (w < (ssize_t)n) {
  

•   	ssize_t x = fwrite(&buf[w], 1, n - w, f);
  

•   	if (ferror(f)) {
  

•   		fprintf(stderr, "Error: write: %s\n",
  

•   			strerror(errno));
  

•   		return;
  

•   	}
  

•   	w += x;
  

•   }
  

• }

• fclose(f);

• int status;

• waitpid(pid, &status, 0);

• if (status != 0) {

•   fprintf(out, "Command exited %d\n", status);
  

• }

+}

static enum gemini_result

do_requests(struct browser *browser, struct gemini_response *resp)

{

@@ -570,6 +621,19 @@ }

	set_url(browser, url, NULL);

	download_resp(browser->tty, resp, trim_ws(&in[1]), url);

	gemini_response_finish(&resp);

•   result = PROMPT_AGAIN;
  

•   goto exit;
  

• case '|':

•   strncpy(&url[0], browser->plain_url, sizeof(url));
  

•   res = do_requests(browser, &resp);
  

•   if (res != GEMINI_OK) {
  

•   	fprintf(stderr, "Error: %s\n",
  

•   		gemini_strerr(res, &resp));
  

•   	goto exit;
  

•   }
  

•   pipe_resp(browser->tty, resp, &in[1]);
  

•   gemini_response_finish(&resp);
  

•   set_url(browser, url, NULL);
  

	result = PROMPT_AGAIN;

	goto exit;

case '?':