mirror/gmni
1
0
Fork 0
mirror of https://git.sr.ht/~sircmpwn/gmni synced 2024-11-23 04:51:59 +01:00
Code

Add '|' to pipe page into an external program

Browse Source
This commit is contained in:
Eyal Sawady 2020-10-20 12:55:40 -04:00 committed by Drew DeVault
parent fa78663748
commit fc6d4a6f69
1 changed files with 64 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

64
src/gmnlm.c
View File

@ -11,6 +11,7 @@
#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 @@ const char *help_msg =
"M\tBrowse bookmarks\n"
"r\tReload the page\n"
"d <path>\tDownload page to <path>\n"
"|<prog>\tPipe page into program\n"
"\n"
"Other commands include:\n\n"
"<Enter>\tread more lines\n"
@ -309,6 +311,55 @@ has_suffix(char *str, char *suff)
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)
{
@ -572,6 +623,19 @@ do_prompts(const char *prompt, struct browser *browser)
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 '?':
if (in[1]) break;
fprintf(browser->tty, "%s", help_msg);