X-Git-Url: https://git.xinqibao.xyz/st.git/blobdiff_plain/177d888dff2fdf987dfa7fc3eb8495fa107879ad..83dea7fd7bb5f6e8a11a7ac8a734d8016d1ed0cb:/st.c?ds=sidebyside
diff --git a/st.c b/st.c
index 0e228a7..6165119 100644
--- a/st.c
+++ b/st.c
@@ -70,7 +70,7 @@ char *argv0;
#define LEN(a) (sizeof(a) / sizeof(a)[0])
#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
-#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f))
+#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
@@ -88,17 +88,17 @@ char *argv0;
enum glyph_attribute {
ATTR_NULL = 0,
- ATTR_BOLD = 1,
- ATTR_FAINT = 2,
- ATTR_ITALIC = 4,
- ATTR_UNDERLINE = 8,
- ATTR_BLINK = 16,
- ATTR_REVERSE = 32,
- ATTR_INVISIBLE = 64,
- ATTR_STRUCK = 128,
- ATTR_WRAP = 256,
- ATTR_WIDE = 512,
- ATTR_WDUMMY = 1024,
+ ATTR_BOLD = 1 << 0,
+ ATTR_FAINT = 1 << 1,
+ ATTR_ITALIC = 1 << 2,
+ ATTR_UNDERLINE = 1 << 3,
+ ATTR_BLINK = 1 << 4,
+ ATTR_REVERSE = 1 << 5,
+ ATTR_INVISIBLE = 1 << 6,
+ ATTR_STRUCK = 1 << 7,
+ ATTR_WRAP = 1 << 8,
+ ATTR_WIDE = 1 << 9,
+ ATTR_WDUMMY = 1 << 10,
};
enum cursor_movement {
@@ -113,27 +113,27 @@ enum cursor_state {
};
enum term_mode {
- MODE_WRAP = 1,
- MODE_INSERT = 2,
- MODE_APPKEYPAD = 4,
- MODE_ALTSCREEN = 8,
- MODE_CRLF = 16,
- MODE_MOUSEBTN = 32,
- MODE_MOUSEMOTION = 64,
- MODE_REVERSE = 128,
- MODE_KBDLOCK = 256,
- MODE_HIDE = 512,
- MODE_ECHO = 1024,
- MODE_APPCURSOR = 2048,
- MODE_MOUSESGR = 4096,
- MODE_8BIT = 8192,
- MODE_BLINK = 16384,
- MODE_FBLINK = 32768,
- MODE_FOCUS = 65536,
- MODE_MOUSEX10 = 131072,
- MODE_MOUSEMANY = 262144,
- MODE_BRCKTPASTE = 524288,
- MODE_PRINT = 1048576,
+ MODE_WRAP = 1 << 0,
+ MODE_INSERT = 1 << 1,
+ MODE_APPKEYPAD = 1 << 2,
+ MODE_ALTSCREEN = 1 << 3,
+ MODE_CRLF = 1 << 4,
+ MODE_MOUSEBTN = 1 << 5,
+ MODE_MOUSEMOTION = 1 << 6,
+ MODE_REVERSE = 1 << 7,
+ MODE_KBDLOCK = 1 << 8,
+ MODE_HIDE = 1 << 9,
+ MODE_ECHO = 1 << 10,
+ MODE_APPCURSOR = 1 << 11,
+ MODE_MOUSESGR = 1 << 12,
+ MODE_8BIT = 1 << 13,
+ MODE_BLINK = 1 << 14,
+ MODE_FBLINK = 1 << 15,
+ MODE_FOCUS = 1 << 16,
+ MODE_MOUSEX10 = 1 << 17,
+ MODE_MOUSEMANY = 1 << 18,
+ MODE_BRCKTPASTE = 1 << 19,
+ MODE_PRINT = 1 << 20,
MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
|MODE_MOUSEMANY,
};
@@ -356,6 +356,7 @@ static void csidump(void);
static void csihandle(void);
static void csiparse(void);
static void csireset(void);
+static int eschandle(uchar ascii);
static void strdump(void);
static void strhandle(void);
static void strparse(void);
@@ -1139,23 +1140,29 @@ die(const char *errstr, ...) {
void
execsh(void) {
- char **args;
- char *envshell = getenv("SHELL");
- const struct passwd *pass = getpwuid(getuid());
+ char **args, *sh;
+ const struct passwd *pw;
char buf[sizeof(long) * 8 + 1];
+ errno = 0;
+ if((pw = getpwuid(getuid())) == NULL) {
+ if(errno)
+ die("getpwuid:%s\n", strerror(errno));
+ else
+ die("who are you?\n");
+ }
unsetenv("COLUMNS");
unsetenv("LINES");
unsetenv("TERMCAP");
- if(pass) {
- setenv("LOGNAME", pass->pw_name, 1);
- setenv("USER", pass->pw_name, 1);
- setenv("SHELL", pass->pw_shell, 0);
- setenv("HOME", pass->pw_dir, 0);
- }
-
+ sh = (pw->pw_shell[0]) ? pw->pw_shell : shell;
snprintf(buf, sizeof(buf), "%lu", xw.win);
+
+ setenv("LOGNAME", pw->pw_name, 1);
+ setenv("USER", pw->pw_name, 1);
+ setenv("SHELL", sh, 1);
+ setenv("HOME", pw->pw_dir, 1);
+ setenv("TERM", termname, 1);
setenv("WINDOWID", buf, 1);
signal(SIGCHLD, SIG_DFL);
@@ -1165,9 +1172,7 @@ execsh(void) {
signal(SIGTERM, SIG_DFL);
signal(SIGALRM, SIG_DFL);
- DEFAULT(envshell, shell);
- setenv("TERM", termname, 1);
- args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
+ args = opt_cmd ? opt_cmd : (char *[]){sh, "-i", NULL};
execvp(args[0], args);
exit(EXIT_FAILURE);
}
@@ -2343,6 +2348,19 @@ tdeftran(char ascii) {
}
}
+void
+tdectest(char c) {
+ static char E[UTF_SIZ] = "E";
+ int x, y;
+
+ if(c == '8') { /* DEC screen alignment test. */
+ for(x = 0; x < term.col; ++x) {
+ for(y = 0; y < term.row; ++y)
+ tsetchar(E, &term.c.attr, x, y);
+ }
+ }
+}
+
void
tstrsequence(uchar c) {
if (c & 0x80) {
@@ -2451,17 +2469,83 @@ tcontrolcode(uchar ascii) {
return;
}
-void
-tdectest(char c) {
- static char E[UTF_SIZ] = "E";
- int x, y;
-
- if(c == '8') { /* DEC screen alignment test. */
- for(x = 0; x < term.col; ++x) {
- for(y = 0; y < term.row; ++y)
- tsetchar(E, &term.c.attr, x, y);
+/*
+ * returns 1 when the sequence is finished and it hasn't to read
+ * more characters for this sequence, otherwise 0
+ */
+int
+eschandle(uchar ascii) {
+ switch(ascii) {
+ case '[':
+ term.esc |= ESC_CSI;
+ return 0;
+ case '#':
+ term.esc |= ESC_TEST;
+ return 0;
+ case 'P': /* DCS -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ case ']': /* OSC -- Operating System Command */
+ case 'k': /* old title set compatibility */
+ tstrsequence(ascii);
+ return 0;
+ case '(': /* set primary charset G0 */
+ case ')': /* set secondary charset G1 */
+ case '*': /* set tertiary charset G2 */
+ case '+': /* set quaternary charset G3 */
+ term.icharset = ascii - '(';
+ term.esc |= ESC_ALTCHARSET;
+ return 0;
+ case 'D': /* IND -- Linefeed */
+ if(term.c.y == term.bot) {
+ tscrollup(term.top, 1);
+ } else {
+ tmoveto(term.c.x, term.c.y+1);
}
+ break;
+ case 'E': /* NEL -- Next line */
+ tnewline(1); /* always go to first col */
+ break;
+ case 'H': /* HTS -- Horizontal tab stop */
+ term.tabs[term.c.x] = 1;
+ break;
+ case 'M': /* RI -- Reverse index */
+ if(term.c.y == term.top) {
+ tscrolldown(term.top, 1);
+ } else {
+ tmoveto(term.c.x, term.c.y-1);
+ }
+ break;
+ case 'Z': /* DECID -- Identify Terminal */
+ ttywrite(vtiden, sizeof(vtiden) - 1);
+ break;
+ case 'c': /* RIS -- Reset to inital state */
+ treset();
+ xresettitle();
+ xloadcols();
+ break;
+ case '=': /* DECPAM -- Application keypad */
+ term.mode |= MODE_APPKEYPAD;
+ break;
+ case '>': /* DECPNM -- Normal keypad */
+ term.mode &= ~MODE_APPKEYPAD;
+ break;
+ case '7': /* DECSC -- Save Cursor */
+ tcursor(CURSOR_SAVE);
+ break;
+ case '8': /* DECRC -- Restore Cursor */
+ tcursor(CURSOR_LOAD);
+ break;
+ case '\\': /* ST -- String Terminator */
+ if(term.esc & ESC_STR_END)
+ strhandle();
+ break;
+ default:
+ fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
+ (uchar) ascii, isprint(ascii)? ascii:'.');
+ break;
}
+ return 1;
}
void
@@ -2548,76 +2632,9 @@ tputc(char *c, int len) {
} else if(term.esc & ESC_TEST) {
tdectest(ascii);
} else {
- switch(ascii) {
- case '[':
- term.esc |= ESC_CSI;
+ if (!eschandle(ascii))
return;
- case '#':
- term.esc |= ESC_TEST;
- return;
- case 'P': /* DCS -- Device Control String */
- case '_': /* APC -- Application Program Command */
- case '^': /* PM -- Privacy Message */
- case ']': /* OSC -- Operating System Command */
- case 'k': /* old title set compatibility */
- tstrsequence(ascii);
- return;
- case '(': /* set primary charset G0 */
- case ')': /* set secondary charset G1 */
- case '*': /* set tertiary charset G2 */
- case '+': /* set quaternary charset G3 */
- term.icharset = ascii - '(';
- term.esc |= ESC_ALTCHARSET;
- return;
- case 'D': /* IND -- Linefeed */
- if(term.c.y == term.bot) {
- tscrollup(term.top, 1);
- } else {
- tmoveto(term.c.x, term.c.y+1);
- }
- break;
- case 'E': /* NEL -- Next line */
- tnewline(1); /* always go to first col */
- break;
- case 'H': /* HTS -- Horizontal tab stop */
- term.tabs[term.c.x] = 1;
- break;
- case 'M': /* RI -- Reverse index */
- if(term.c.y == term.top) {
- tscrolldown(term.top, 1);
- } else {
- tmoveto(term.c.x, term.c.y-1);
- }
- break;
- case 'Z': /* DECID -- Identify Terminal */
- ttywrite(vtiden, sizeof(vtiden) - 1);
- break;
- case 'c': /* RIS -- Reset to inital state */
- treset();
- xresettitle();
- xloadcols();
- break;
- case '=': /* DECPAM -- Application keypad */
- term.mode |= MODE_APPKEYPAD;
- break;
- case '>': /* DECPNM -- Normal keypad */
- term.mode &= ~MODE_APPKEYPAD;
- break;
- case '7': /* DECSC -- Save Cursor */
- tcursor(CURSOR_SAVE);
- break;
- case '8': /* DECRC -- Restore Cursor */
- tcursor(CURSOR_LOAD);
- break;
- case '\\': /* ST -- String Terminator */
- if(term.esc & ESC_STR_END)
- strhandle();
- break;
- default:
- fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
- (uchar) ascii, isprint(ascii)? ascii:'.');
- break;
- }
+ /* sequence already finished */
}
term.esc = 0;
/*