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@ -3,6 +3,10 @@ |
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#include <sys/wait.h> |
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#include <ctype.h> |
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#include <err.h> |
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#include <fcntl.h> |
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#if !(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) |
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#include <pty.h> |
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#endif |
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#include <signal.h> |
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#include <stdarg.h> |
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#include <stdio.h> |
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@ -17,7 +21,7 @@ |
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static void buffer(char c); |
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static void cmd(const char *cmdstr, ...); |
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static int getch(); |
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void getpty(void); |
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static void getpty(void); |
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static void movea(int x, int y); |
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static void mover(int x, int y); |
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static void parseesc(void); |
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@ -41,7 +45,7 @@ typedef struct { |
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static int cols = 80, lines = 25; |
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static int cx = 0, cy = 0; |
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static int c; |
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int ptm, pts; |
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static int ptm, pts; |
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static _Bool bold, digit, qmark; |
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static pid_t pid; |
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static RingBuffer buf; |
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@ -207,6 +211,38 @@ scroll(int l) { |
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cmd("seek(%d,%d)", cx, cy + l); |
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} |
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void |
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getpty(void) { |
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char *ptsdev; |
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#if defined(_GNU_SOURCE) |
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ptm = getpt(); |
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#elif _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600 |
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ptm = posix_openpt(O_RDWR); |
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#else |
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ptm = open("/dev/ptmx", O_RDWR); |
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if(ptm == -1) |
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if(openpty(&ptm, &pts, NULL, NULL, NULL) == -1) |
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err(EXIT_FAILURE, "cannot open pty"); |
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#endif |
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#if defined(_XOPEN_SOURCE) |
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if(ptm != -1) { |
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if(grantpt(ptm) == -1) |
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err(EXIT_FAILURE, "cannot grant access to pty"); |
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if(unlockpt(ptm) == -1) |
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err(EXIT_FAILURE, "cannot unlock pty"); |
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ptsdev = ptsname(ptm); |
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if(!ptsdev) |
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err(EXIT_FAILURE, "slave pty name undefined"); |
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pts = open(ptsdev, O_RDWR); |
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if(pts == -1) |
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err(EXIT_FAILURE, "cannot open slave pty"); |
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} |
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else |
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err(EXIT_FAILURE, "cannot open pty"); |
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#endif |
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} |
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void |
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shell(void) { |
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static char *shell = NULL; |
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