/* * This is _not_ a 64 bit system call. It's a 32 bit svc that * supports large files */ extern "C" int __k42_linux_lstat64 ( char *filename, struct stat64 *output_stat) { struct _gstat64 gstat; int rc = dolstat(filename, (void *) &gstat); if (rc < 0) return rc; _convert_gstat2lgstat64(output_stat, &gstat); return 0; }
extern "C" int __k42_linux_lstat (const char *filename, struct stat *kstat) { struct _gstat64 gstat; int rc = dolstat(filename, (void *) &gstat); if (rc < 0) return rc; _convert_gstat2kstat(kstat, &gstat); return 0; }
/* 32-bit lstat syscalls are vectored here. */ extern "C" int __k42_linux_compat_sys_newlstat (const char *filename, struct compat_stat *kstat) { struct _gstat64 gstat; int rc = dolstat(filename, (void *) &gstat); if (rc < 0) return rc; _convert_gstat2kstat32(kstat, &gstat); // kstat <- gstat return 0; }
int evalcond(Estate state, char *fromtest) { struct stat *st; char *left, *right, *overridename, overridebuf[13]; Wordcode pcode; wordcode code; int ctype, htok = 0, ret; rec: left = right = overridename = NULL; pcode = state->pc++; code = *pcode; ctype = WC_COND_TYPE(code); switch (ctype) { case COND_NOT: if (tracingcond) fprintf(xtrerr, " %s", condstr[ctype]); ret = evalcond(state, fromtest); if (ret == 2) return ret; else return !ret; case COND_AND: if (!(ret = evalcond(state, fromtest))) { if (tracingcond) fprintf(xtrerr, " %s", condstr[ctype]); goto rec; } else { state->pc = pcode + (WC_COND_SKIP(code) + 1); return ret; } case COND_OR: if ((ret = evalcond(state, fromtest)) == 1) { if (tracingcond) fprintf(xtrerr, " %s", condstr[ctype]); goto rec; } else { state->pc = pcode + (WC_COND_SKIP(code) + 1); return ret; } case COND_REGEX: { char *modname = isset(REMATCHPCRE) ? "zsh/pcre" : "zsh/regex"; sprintf(overridename = overridebuf, "-%s-match", modname+4); (void)ensurefeature(modname, "C:", overridename+1); ctype = COND_MODI; } /*FALLTHROUGH*/ case COND_MOD: case COND_MODI: { Conddef cd; char *name = overridename, *errname; char **strs; int l = WC_COND_SKIP(code); if (name == NULL) name = ecgetstr(state, EC_NODUP, NULL); if (ctype == COND_MOD) strs = ecgetarr(state, l, EC_DUP, NULL); else { char *sbuf[3]; sbuf[0] = ecgetstr(state, EC_NODUP, NULL); sbuf[1] = ecgetstr(state, EC_NODUP, NULL); sbuf[2] = NULL; strs = arrdup(sbuf); l = 2; } if (name && name[0] == '-') errname = name; else if (strs[0] && *strs[0] == '-') errname = strs[0]; else errname = "<null>"; if (name && name[0] == '-' && (cd = getconddef((ctype == COND_MODI), name + 1, 1))) { if (ctype == COND_MOD && (l < cd->min || (cd->max >= 0 && l > cd->max))) { zwarnnam(fromtest, "unknown condition: %s", name); return 2; } if (tracingcond) tracemodcond(name, strs, ctype == COND_MODI); return !cd->handler(strs, cd->condid); } else { char *s = strs[0]; if (overridename) { /* * Standard regex function not available: this * is a hard error. */ zerrnam(fromtest, "%s not available for regex", overridename); return 2; } strs[0] = dupstring(name); name = s; if (name && name[0] == '-' && (cd = getconddef(0, name + 1, 1))) { if (l < cd->min || (cd->max >= 0 && l > cd->max)) { zwarnnam(fromtest, "unknown condition: %s", errname); return 2; } if (tracingcond) tracemodcond(name, strs, ctype == COND_MODI); return !cd->handler(strs, cd->condid); } else { zwarnnam(fromtest, "unknown condition: %s", errname); } } /* module not found, error */ return 2; } } left = ecgetstr(state, EC_DUPTOK, &htok); if (htok) { cond_subst(&left, !fromtest); untokenize(left); } if (ctype <= COND_GE && ctype != COND_STREQ && ctype != COND_STRNEQ) { right = ecgetstr(state, EC_DUPTOK, &htok); if (htok) { cond_subst(&right, !fromtest); untokenize(right); } } if (tracingcond) { if (ctype < COND_MOD) { fputc(' ',xtrerr); quotedzputs(left, xtrerr); fprintf(xtrerr, " %s ", condstr[ctype]); if (ctype == COND_STREQ || ctype == COND_STRNEQ) { char *rt = dupstring(ecrawstr(state->prog, state->pc, NULL)); cond_subst(&rt, !fromtest); quote_tokenized_output(rt, xtrerr); } else quotedzputs((char *)right, xtrerr); } else { fprintf(xtrerr, " -%c ", ctype); quotedzputs(left, xtrerr); } } if (ctype >= COND_EQ && ctype <= COND_GE) { mnumber mn1, mn2; if (fromtest) { /* * For test and [, the expressions must be base 10 integers, * not integer expressions. */ char *eptr, *err; mn1.u.l = zstrtol(left, &eptr, 10); if (!*eptr) { mn2.u.l = zstrtol(right, &eptr, 10); err = right; } else err = left; if (*eptr) { zwarnnam(fromtest, "integer expression expected: %s", err); return 2; } mn1.type = mn2.type = MN_INTEGER; } else { mn1 = matheval(left); mn2 = matheval(right); } if (((mn1.type|mn2.type) & (MN_INTEGER|MN_FLOAT)) == (MN_INTEGER|MN_FLOAT)) { /* promote to float */ if (mn1.type & MN_INTEGER) { mn1.type = MN_FLOAT; mn1.u.d = (double)mn1.u.l; } if (mn2.type & MN_INTEGER) { mn2.type = MN_FLOAT; mn2.u.d = (double)mn2.u.l; } } switch(ctype) { case COND_EQ: return !((mn1.type & MN_FLOAT) ? (mn1.u.d == mn2.u.d) : (mn1.u.l == mn2.u.l)); case COND_NE: return !((mn1.type & MN_FLOAT) ? (mn1.u.d != mn2.u.d) : (mn1.u.l != mn2.u.l)); case COND_LT: return !((mn1.type & MN_FLOAT) ? (mn1.u.d < mn2.u.d) : (mn1.u.l < mn2.u.l)); case COND_GT: return !((mn1.type & MN_FLOAT) ? (mn1.u.d > mn2.u.d) : (mn1.u.l > mn2.u.l)); case COND_LE: return !((mn1.type & MN_FLOAT) ? (mn1.u.d <= mn2.u.d) : (mn1.u.l <= mn2.u.l)); case COND_GE: return !((mn1.type & MN_FLOAT) ? (mn1.u.d >= mn2.u.d) : (mn1.u.l >= mn2.u.l)); } } switch (ctype) { case COND_STREQ: case COND_STRNEQ: { int test, npat = state->pc[1]; Patprog pprog = state->prog->pats[npat]; if (pprog == dummy_patprog1 || pprog == dummy_patprog2) { char *opat; int save; right = dupstring(opat = ecrawstr(state->prog, state->pc, &htok)); singsub(&right); save = (!(state->prog->flags & EF_HEAP) && !strcmp(opat, right) && pprog != dummy_patprog2); if (!(pprog = patcompile(right, (save ? PAT_ZDUP : PAT_STATIC), NULL))) { zwarnnam(fromtest, "bad pattern: %s", right); return 2; } else if (save) state->prog->pats[npat] = pprog; } state->pc += 2; test = (pprog && pattry(pprog, left)); return !(ctype == COND_STREQ ? test : !test); } case COND_STRLT: return !(strcmp(left, right) < 0); case COND_STRGTR: return !(strcmp(left, right) > 0); case 'e': case 'a': return (!doaccess(left, F_OK)); case 'b': return (!S_ISBLK(dostat(left))); case 'c': return (!S_ISCHR(dostat(left))); case 'd': return (!S_ISDIR(dostat(left))); case 'f': return (!S_ISREG(dostat(left))); case 'g': return (!(dostat(left) & S_ISGID)); case 'k': return (!(dostat(left) & S_ISVTX)); case 'n': return (!strlen(left)); case 'o': return (optison(fromtest, left)); case 'p': return (!S_ISFIFO(dostat(left))); case 'r': return (!doaccess(left, R_OK)); case 's': return !((st = getstat(left)) && !!(st->st_size)); case 'S': return (!S_ISSOCK(dostat(left))); case 'u': return (!(dostat(left) & S_ISUID)); case 'w': return (!doaccess(left, W_OK)); case 'x': if (privasserted()) { mode_t mode = dostat(left); return !((mode & S_IXUGO) || S_ISDIR(mode)); } return !doaccess(left, X_OK); case 'z': return !!(strlen(left)); case 'h': case 'L': return (!S_ISLNK(dolstat(left))); case 'O': return !((st = getstat(left)) && st->st_uid == geteuid()); case 'G': return !((st = getstat(left)) && st->st_gid == getegid()); case 'N': #if defined(GET_ST_MTIME_NSEC) && defined(GET_ST_ATIME_NSEC) if (!(st = getstat(left))) return 1; return (st->st_atime == st->st_mtime) ? GET_ST_ATIME_NSEC(*st) > GET_ST_MTIME_NSEC(*st) : st->st_atime > st->st_mtime; #else return !((st = getstat(left)) && st->st_atime <= st->st_mtime); #endif case 't': return !isatty(mathevali(left)); case COND_NT: case COND_OT: { time_t a; #ifdef GET_ST_MTIME_NSEC long nsecs; #endif if (!(st = getstat(left))) return 1; a = st->st_mtime; #ifdef GET_ST_MTIME_NSEC nsecs = GET_ST_MTIME_NSEC(*st); #endif if (!(st = getstat(right))) return 1; #ifdef GET_ST_MTIME_NSEC if (a == st->st_mtime) { return !((ctype == COND_NT) ? nsecs > GET_ST_MTIME_NSEC(*st) : nsecs < GET_ST_MTIME_NSEC(*st)); } #endif return !((ctype == COND_NT) ? a > st->st_mtime : a < st->st_mtime); } case COND_EF: { dev_t d; ino_t i; if (!(st = getstat(left))) return 1; d = st->st_dev; i = st->st_ino; if (!(st = getstat(right))) return 1; return !(d == st->st_dev && i == st->st_ino); } default: zwarnnam(fromtest, "bad cond code"); return 2; } }