X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=st.c;h=3abf1b021258ce2b7f16f24bd1e14aa3247ed595;hb=ddb08dfe82ca196bb4f6e554e7db0fd32da58ba2;hp=324c59805d20e7b9eb15e4d7e76efc196d4cd193;hpb=181c9f3ba9a0d9bb36b372f3dc04c966a95f491e;p=st.git

diff --git a/st.c b/st.c
index 324c598..3abf1b0 100644
--- a/st.c
+++ b/st.c
@@ -28,6 +28,9 @@
 #elif defined(__FreeBSD__) || defined(__DragonFly__)
  #include <libutil.h>
 #endif
+#if defined(__OpenBSD__)
+ #include <sys/sysctl.h>
+#endif
 
 /* Arbitrary sizes */
 #define UTF_INVALID   0xFFFD
@@ -157,6 +160,7 @@ typedef struct {
 } STREscape;
 
 static void execsh(char *, char **);
+static char *getcwd_by_pid(pid_t pid);
 static void stty(char **);
 static void sigchld(int);
 static void ttywriteraw(const char *, size_t);
@@ -242,6 +246,22 @@ static TCursor c[3];
 static inline int rows() { return IS_SET(MODE_ALTSCREEN) ? term.row : buffSize;}
 static inline int rangeY(int i) { while (i < 0) i += rows(); return i % rows();}
 
+int
+subprocwd(char *path)
+{
+#if   defined(__linux)
+	if (snprintf(path, PATH_MAX, "/proc/%d/cwd", pid) < 0)
+		return -1;
+	return 0;
+#elif defined(__OpenBSD__)
+	size_t sz = PATH_MAX;
+	int name[3] = {CTL_KERN, KERN_PROC_CWD, pid};
+	if (sysctl(name, 3, path, &sz, 0, 0) == -1)
+		return -1;
+	return 0;
+#endif
+}
+
 ssize_t
 xwrite(int fd, const char *s, size_t len)
 {
@@ -811,7 +831,7 @@ ttynew(char *line, char *cmd, char *out, char **args)
 		break;
 	default:
 #ifdef __OpenBSD__
-		if (pledge("stdio rpath tty proc", NULL) == -1)
+		if (pledge("stdio rpath tty proc ps exec", NULL) == -1)
 			die("pledge\n");
 #endif
 		close(s);
@@ -1061,6 +1081,26 @@ tswapscreen(void)
 	tfulldirt();
 }
 
+void
+newterm(const Arg* a)
+{
+	switch (fork()) {
+	case -1:
+		die("fork failed: %s\n", strerror(errno));
+		break;
+	case 0:
+		chdir(getcwd_by_pid(pid));
+		execlp("st", "./st", NULL);
+		break;
+	}
+}
+
+static char *getcwd_by_pid(pid_t pid) {
+	char buf[32];
+	snprintf(buf, sizeof buf, "/proc/%d/cwd", pid);
+	return realpath(buf, NULL);
+}
+
 void
 tscrolldown(int orig, int n)
 {