X-Git-Url: https://git.danieliu.xyz/?p=st.git;a=blobdiff_plain;f=st.c;h=ede7ae6cff60a8f0767820e0a62179dabbd833ad;hp=504239ea6ac121ec512a4e738e72b916a828015e;hb=2b8333f553c14c15398e810353e192eb05938580;hpb=88d8293fb4ba150a5f19d58d133b5db93d9dcfa5 diff --git a/st.c b/st.c index 504239e..ede7ae6 100644 --- a/st.c +++ b/st.c @@ -3,24 +3,18 @@ #include #include #include -#include #include #include #include #include #include #include -#include #include #include -#include -#include #include #include #include -#include #include -#include #include #include "st.h" @@ -36,6 +30,7 @@ /* Arbitrary sizes */ #define UTF_INVALID 0xFFFD +#define UTF_SIZ 4 #define ESC_BUF_SIZ (128*UTF_SIZ) #define ESC_ARG_SIZ 16 #define STR_BUF_SIZ ESC_BUF_SIZ @@ -43,14 +38,10 @@ /* macros */ #define IS_SET(flag) ((term.mode & (flag)) != 0) -#define NUMMAXLEN(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) #define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177') #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) -#define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL) - -/* constants */ -#define ISO14755CMD "dmenu -w \"$WINDOWID\" -p codepoint: ] [;]] []] */ typedef struct { @@ -116,8 +152,7 @@ typedef struct { int narg; /* nb of args */ } STREscape; - -static void execsh(char **); +static void execsh(char *, char **); static void stty(char **); static void sigchld(int); static void ttywriteraw(const char *, size_t); @@ -168,28 +203,28 @@ static void tstrsequence(uchar); static void drawregion(int, int, int, int); +static void selnormalize(void); static void selscroll(int, int); static void selsnap(int *, int *, int); +static size_t utf8decode(const char *, Rune *, size_t); static Rune utf8decodebyte(char, size_t *); static char utf8encodebyte(Rune, size_t); -static char *utf8strchr(char *s, Rune u); static size_t utf8validate(Rune *, size_t); static char *base64dec(const char *); +static char base64dec_getc(const char **); static ssize_t xwrite(int, const char *, size_t); /* Globals */ -Term term; -int cmdfd; -pid_t pid; -int oldbutton = 3; /* button event on startup: 3 = release */ - +static Term term; static Selection sel; static CSIEscape csiescseq; static STREscape strescseq; static int iofd = 1; +static int cmdfd; +static pid_t pid; static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0}; static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; @@ -216,10 +251,10 @@ xwrite(int fd, const char *s, size_t len) void * xmalloc(size_t len) { - void *p = malloc(len); + void *p; - if (!p) - die("Out of memory\n"); + if (!(p = malloc(len))) + die("malloc: %s\n", strerror(errno)); return p; } @@ -228,7 +263,7 @@ void * xrealloc(void *p, size_t len) { if ((p = realloc(p, len)) == NULL) - die("Out of memory\n"); + die("realloc: %s\n", strerror(errno)); return p; } @@ -237,7 +272,7 @@ char * xstrdup(char *s) { if ((s = strdup(s)) == NULL) - die("Out of memory\n"); + die("strdup: %s\n", strerror(errno)); return s; } @@ -301,23 +336,6 @@ utf8encodebyte(Rune u, size_t i) return utfbyte[i] | (u & ~utfmask[i]); } -char * -utf8strchr(char *s, Rune u) -{ - Rune r; - size_t i, j, len; - - len = strlen(s); - for (i = 0, j = 0; i < len; i += j) { - if (!(j = utf8decode(&s[i], &r, len - i))) - break; - if (r == u) - return &(s[i]); - } - - return NULL; -} - size_t utf8validate(Rune *u, size_t i) { @@ -406,6 +424,7 @@ selstart(int col, int row, int snap) selclear(); sel.mode = SEL_EMPTY; sel.type = SEL_REGULAR; + sel.alt = IS_SET(MODE_ALTSCREEN); sel.snap = snap; sel.oe.x = sel.ob.x = col; sel.oe.y = sel.ob.y = row; @@ -421,7 +440,7 @@ selextend(int col, int row, int type, int done) { int oldey, oldex, oldsby, oldsey, oldtype; - if (!sel.mode) + if (sel.mode == SEL_IDLE) return; if (done && sel.mode == SEL_EMPTY) { selclear(); @@ -434,13 +453,12 @@ selextend(int col, int row, int type, int done) oldsey = sel.ne.y; oldtype = sel.type; - sel.alt = IS_SET(MODE_ALTSCREEN); sel.oe.x = col; sel.oe.y = row; selnormalize(); sel.type = type; - if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type) + if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type || sel.mode == SEL_EMPTY) tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey)); sel.mode = done ? SEL_IDLE : SEL_READY; @@ -639,7 +657,7 @@ die(const char *errstr, ...) } void -execsh(char **args) +execsh(char *cmd, char **args) { char *sh, *prog; const struct passwd *pw; @@ -647,13 +665,13 @@ execsh(char **args) errno = 0; if ((pw = getpwuid(getuid())) == NULL) { if (errno) - die("getpwuid:%s\n", strerror(errno)); + die("getpwuid: %s\n", strerror(errno)); else die("who are you?\n"); } if ((sh = getenv("SHELL")) == NULL) - sh = (pw->pw_shell[0]) ? pw->pw_shell : shell; + sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd; if (args) prog = args[0]; @@ -690,17 +708,18 @@ sigchld(int a) pid_t p; if ((p = waitpid(pid, &stat, WNOHANG)) < 0) - die("Waiting for pid %hd failed: %s\n", pid, strerror(errno)); + die("waiting for pid %hd failed: %s\n", pid, strerror(errno)); if (pid != p) return; - if (!WIFEXITED(stat) || WEXITSTATUS(stat)) - die("child finished with error '%d'\n", stat); + if (WIFEXITED(stat) && WEXITSTATUS(stat)) + die("child exited with status %d\n", WEXITSTATUS(stat)); + else if (WIFSIGNALED(stat)) + die("child terminated due to signal %d\n", WTERMSIG(stat)); exit(0); } - void stty(char **args) { @@ -722,11 +741,11 @@ stty(char **args) } *q = '\0'; if (system(cmd) != 0) - perror("Couldn't call stty"); + perror("Couldn't call stty"); } -void -ttynew(char *line, char *out, char **args) +int +ttynew(char *line, char *cmd, char *out, char **args) { int m, s; @@ -742,10 +761,11 @@ ttynew(char *line, char *out, char **args) if (line) { if ((cmdfd = open(line, O_RDWR)) < 0) - die("open line failed: %s\n", strerror(errno)); + die("open line '%s' failed: %s\n", + line, strerror(errno)); dup2(cmdfd, 0); stty(args); - return; + return cmdfd; } /* seems to work fine on linux, openbsd and freebsd */ @@ -754,7 +774,7 @@ ttynew(char *line, char *out, char **args) switch (pid = fork()) { case -1: - die("fork failed\n"); + die("fork failed: %s\n", strerror(errno)); break; case 0: close(iofd); @@ -766,14 +786,23 @@ ttynew(char *line, char *out, char **args) die("ioctl TIOCSCTTY failed: %s\n", strerror(errno)); close(s); close(m); - execsh(args); +#ifdef __OpenBSD__ + if (pledge("stdio getpw proc exec", NULL) == -1) + die("pledge\n"); +#endif + execsh(cmd, args); break; default: +#ifdef __OpenBSD__ + if (pledge("stdio rpath tty proc", NULL) == -1) + die("pledge\n"); +#endif close(s); cmdfd = m; signal(SIGCHLD, sigchld); break; } + return cmdfd; } size_t @@ -786,7 +815,7 @@ ttyread(void) /* append read bytes to unprocessed bytes */ if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0) - die("Couldn't read from shell: %s\n", strerror(errno)); + die("couldn't read from shell: %s\n", strerror(errno)); buflen += ret; written = twrite(buf, buflen, 0); @@ -896,6 +925,13 @@ ttyresize(int tw, int th) fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno)); } +void +ttyhangup() +{ + /* Send SIGHUP to shell */ + kill(pid, SIGHUP); +} + int tattrset(int attr) { @@ -1400,7 +1436,8 @@ tsetattr(int *attr, int l) } else { fprintf(stderr, "erresc(default): gfx attr %d unknown\n", - attr[i]), csidump(); + attr[i]); + csidump(); } break; } @@ -1520,6 +1557,7 @@ tsetmode(int priv, int set, int *args, int narg) case 1015: /* urxvt mangled mouse mode; incompatible and can be mistaken for other control codes. */ + break; default: fprintf(stderr, "erresc: unknown private set/reset mode %d\n", @@ -1646,7 +1684,6 @@ csihandle(void) tputtab(csiescseq.arg[0]); break; case 'J': /* ED -- Clear screen */ - selclear(); switch (csiescseq.arg[0]) { case 0: /* below */ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); @@ -1792,7 +1829,7 @@ csireset(void) void strhandle(void) { - char *p = NULL; + char *p = NULL, *dec; int j, narg, par; term.esc &= ~(ESC_STR_END|ESC_STR); @@ -1810,8 +1847,6 @@ strhandle(void) return; case 52: if (narg > 2) { - char *dec; - dec = base64dec(strescseq.args[2]); if (dec) { xsetsel(dec); @@ -1829,7 +1864,10 @@ strhandle(void) case 104: /* color reset, here p = NULL */ j = (narg > 1) ? atoi(strescseq.args[1]) : -1; if (xsetcolorname(j, p)) { - fprintf(stderr, "erresc: invalid color %s\n", p); + if (par == 104 && narg <= 1) + return; /* color reset without parameter */ + fprintf(stderr, "erresc: invalid color j=%d, p=%s\n", + j, p ? p : "(null)"); } else { /* * TODO if defaultbg color is changed, borders @@ -1926,28 +1964,6 @@ tprinter(char *s, size_t len) } } -void -iso14755(const Arg *arg) -{ - FILE *p; - char *us, *e, codepoint[9], uc[UTF_SIZ]; - unsigned long utf32; - - if (!(p = popen(ISO14755CMD, "r"))) - return; - - us = fgets(codepoint, sizeof(codepoint), p); - pclose(p); - - if (!us || *us == '\0' || *us == '-' || strlen(us) > 7) - return; - if ((utf32 = strtoul(us, &e, 16)) == ULONG_MAX || - (*e != '\n' && *e != '\0')) - return; - - ttywrite(uc, utf8encode(utf32, uc), 1); -} - void toggleprinter(const Arg *arg) { @@ -2232,7 +2248,7 @@ eschandle(uchar ascii) case 'Z': /* DECID -- Identify Terminal */ ttywrite(vtiden, strlen(vtiden), 0); break; - case 'c': /* RIS -- Reset to inital state */ + case 'c': /* RIS -- Reset to initial state */ treset(); resettitle(); xloadcols(); @@ -2303,7 +2319,6 @@ tputc(Rune u) goto check_control_code; } - if (IS_SET(MODE_SIXEL)) { /* TODO: implement sixel mode */ return; @@ -2544,11 +2559,25 @@ drawregion(int x1, int y1, int x2, int y2) void draw(void) { + int cx = term.c.x; + if (!xstartdraw()) return; + + /* adjust cursor position */ + LIMIT(term.ocx, 0, term.col-1); + LIMIT(term.ocy, 0, term.row-1); + if (term.line[term.ocy][term.ocx].mode & ATTR_WDUMMY) + term.ocx--; + if (term.line[term.c.y][cx].mode & ATTR_WDUMMY) + cx--; + drawregion(0, 0, term.col, term.row); - xdrawcursor(); + xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], + term.ocx, term.ocy, term.line[term.ocy][term.ocx]); + term.ocx = cx, term.ocy = term.c.y; xfinishdraw(); + xximspot(term.ocx, term.ocy); } void