add terminal plugin

plugins/wterm/wterm.c

@@ -0,0 +1,88 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include "../plugin.h"
+
+void init();
+call __init__ = init;
+
+void init()
+{
+	
+}
+void pexit()
+{
+	
+}
+
+int read_buf(int fd, char*buf,int size)
+{
+	int i = 0;
+	char c = '\0';
+	int n;
+	while ((i < size - 1) && (c != '\n'))
+	{
+		n = read(fd, &c, 1);
+		if (n > 0)
+		{
+			buf[i] = c;
+			i++;
+		}
+		else if(n == -1) return n;
+		else
+			c = '\n';
+	}
+	buf[i] = '\0';
+	return i;
+}
+void execute(int client, const char* m, dictionary rq)
+{
+	textstream(client);
+	int filedes[2];
+	char* code = R_STR(rq, "cmd");
+	if(!code) return;
+	if(pipe(filedes) == -1)
+	{
+		perror("pipe");
+		return;
+	}
+	pid_t pid = fork();
+	if(pid == -1)
+	{
+		perror("folk");
+		return;
+	} else if(pid == 0)
+	{
+	    while ((dup2(filedes[1], STDOUT_FILENO) == -1) && (errno == EINTR)) {}
+	     close(filedes[1]);
+	     close(filedes[0]);
+	    // executecomand
+		 system(code);
+	     //perror("execl");
+	     _exit(1);
+	}
+	close(filedes[1]);
+	char buffer[1024];
+	while (1) {
+		ssize_t count = read_buf(filedes[0],buffer, sizeof(buffer));
+		if (count == -1) {
+			if (errno == EINTR) {
+				continue;
+			} else {
+				perror("read");
+				return;
+			}
+		} else if (count == 0) {
+			break;
+		} else {
+			__t(client,"data:%s\n",buffer);
+			//handle_child_process_output(buffer, count);
+		}
+	}
+	close(filedes[0]);
+	wait(0);
+	free(code);
+	printf("Child process exit\n");
+}