X-Git-Url: https://git.danieliu.xyz/?p=st.git;a=blobdiff_plain;f=st.c;h=574dbeee866f2704cb6b3bd971d0089af47f258d;hp=4bf637887cbb40392afbf06ae28c074d1349391d;hb=67d0cb65d0794e2d91e72e5fa1e3612172e5812e;hpb=a5dc1b46976b2252f9d7bb68f126c4b0f351dd1a diff --git a/st.c b/st.c index 4bf6378..574dbee 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 @@ -43,15 +38,11 @@ /* 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 +203,29 @@ 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 char *utf8strchr(char *, Rune); 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 +252,10 @@ 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 +264,7 @@ 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 +273,7 @@ char * xstrdup(char *s) { if ((s = strdup(s)) == NULL) - die("Out of memory\n"); + die("strdup: %s\n", strerror(errno)); return s; } @@ -406,6 +442,7 @@ 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 +458,7 @@ 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(); @@ -434,7 +471,6 @@ 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(); @@ -639,7 +675,7 @@ die(const char *errstr, ...) } void -execsh(char **args) +execsh(char *cmd, char **args) { char *sh, *prog; const struct passwd *pw; @@ -647,13 +683,13 @@ 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]; @@ -690,7 +726,7 @@ 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; @@ -700,7 +736,6 @@ sigchld(int a) exit(0); } - void stty(char **args) { @@ -722,11 +757,11 @@ 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 +777,11 @@ 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 +790,7 @@ 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 +802,23 @@ 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 +831,7 @@ 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 +941,13 @@ 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) { @@ -1646,7 +1698,6 @@ 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); @@ -1926,28 +1977,6 @@ 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) {