change normal mode key

[st.git] / st.c

diff --git a/st.c b/st.c
index 324c598..3abf1b0 100644 (file)
--- 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)
 {