int readcmd(int argc, char **argv) { char **ap; int backslash; char c; int rflag; char *prompt; char *p; int status; int i; rflag = 0; prompt = NULL; while ((i = nextopt("p:r")) != '\0') { if (i == 'p') prompt = optionarg; else rflag = 1; } if (prompt && isatty(0)) { out2str(prompt); #ifdef FLUSHERR flushall(); #endif } if (*(ap = argptr) == NULL) sh_error("arg count"); status = 0; backslash = 0; STARTSTACKSTR(p); for (;;) { if (read(0, &c, 1) != 1) { status = 1; break; } if (c == '\0') continue; if (backslash) { if (c == '\n') goto resetbs; STPUTC(CTLESC, p); goto put; } if (!rflag && c == '\\') { backslash++; continue; } if (c == '\n') break; put: STPUTC(c, p); resetbs: backslash = 0; } STACKSTRNUL(p); readcmd_handle_line(stackblock(), ap, p + 1 - (char *)stackblock()); return status; }
int readcmd(int argc, char **argv) { char **ap; char c; int rflag; char *prompt; char *p; int startloc; int newloc; int status; int i; rflag = 0; prompt = NULL; while ((i = nextopt("p:r")) != '\0') { if (i == 'p') prompt = optionarg; else rflag = 1; } if (prompt && isatty(0)) { out2str(prompt); #ifdef FLUSHERR flushall(); #endif } if (*(ap = argptr) == NULL) sh_error("arg count"); status = 0; STARTSTACKSTR(p); goto start; for (;;) { switch (read(0, &c, 1)) { case 1: break; default: if (errno == EINTR && !pendingsigs) continue; /* fall through */ case 0: status = 1; goto out; } if (c == '\0') continue; if (newloc >= startloc) { if (c == '\n') goto resetbs; goto put; } if (!rflag && c == '\\') { newloc = p - (char *)stackblock(); continue; } if (c == '\n') break; put: CHECKSTRSPACE(2, p); if (strchr(qchars, c)) USTPUTC(CTLESC, p); USTPUTC(c, p); if (newloc >= startloc) { resetbs: recordregion(startloc, newloc, 0); start: startloc = p - (char *)stackblock(); newloc = startloc - 1; } } out: recordregion(startloc, p - (char *)stackblock(), 0); STACKSTRNUL(p); readcmd_handle_line(p + 1, ap); return status; }
int readcmd(int argc, char **argv) { char **ap; char c; int rflag; char *prompt; char *p; int startloc; int newloc; int status; int timeout; int i; fd_set set; struct timeval ts, t0, t1, to; ts.tv_sec = ts.tv_usec = 0; rflag = 0; timeout = 0; prompt = NULL; while ((i = nextopt("p:rt:")) != '\0') { switch(i) { case 'p': prompt = optionarg; break; case 't': p = strtotimeval(optionarg, &ts); if (*p || (!ts.tv_sec && !ts.tv_usec)) sh_error("invalid timeout"); timeout = 1; break; case 'r': rflag = 1; break; default: break; } } if (prompt && isatty(0)) { out2str(prompt); #ifdef FLUSHERR flushall(); #endif } if (*(ap = argptr) == NULL) sh_error("arg count"); status = 0; if (timeout) { gettimeofday(&t0, NULL); /* ts += t0; */ ts.tv_usec += t0.tv_usec; while (ts.tv_usec >= 1000000) { ts.tv_sec++; ts.tv_usec -= 1000000; } ts.tv_sec += t0.tv_sec; } STARTSTACKSTR(p); goto start; for (;;) { if (timeout) { gettimeofday(&t1, NULL); if (t1.tv_sec > ts.tv_sec || (t1.tv_sec == ts.tv_sec && t1.tv_usec >= ts.tv_usec)) { status = 1; break; /* Timeout! */ } /* to = ts - t1; */ if (ts.tv_usec >= t1.tv_usec) { to.tv_usec = ts.tv_usec - t1.tv_usec; to.tv_sec = ts.tv_sec - t1.tv_sec; } else { to.tv_usec = ts.tv_usec - t1.tv_usec + 1000000; to.tv_sec = ts.tv_sec - t1.tv_sec - 1; } FD_ZERO(&set); FD_SET(0, &set); if (select(1, &set, NULL, NULL, &to) != 1) { status = 1; break; /* Timeout! */ } } switch (read(0, &c, 1)) { case 1: break; default: if (errno == EINTR && !pendingsigs) continue; /* fall through */ case 0: status = 1; goto out; } if (c == '\0') continue; if (newloc >= startloc) { if (c == '\n') goto resetbs; goto put; } if (!rflag && c == '\\') { newloc = p - (char *)stackblock(); continue; } if (c == '\n') break; put: CHECKSTRSPACE(2, p); if (strchr(qchars, c)) USTPUTC(CTLESC, p); USTPUTC(c, p); if (newloc >= startloc) { resetbs: recordregion(startloc, newloc, 0); start: startloc = p - (char *)stackblock(); newloc = startloc - 1; } } out: recordregion(startloc, p - (char *)stackblock(), 0); STACKSTRNUL(p); readcmd_handle_line(p + 1, ap); return status; }