Date: Sat, 23 Jul 2016 01:21:58 +0000 (UTC) From: "Andrey A. Chernov" <ache@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r303208 - head/lib/libc/gen Message-ID: <201607230121.u6N1LwA8077831@repo.freebsd.org>
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Author: ache Date: Sat Jul 23 01:21:58 2016 New Revision: 303208 URL: https://svnweb.freebsd.org/changeset/base/303208 Log: 1) We need the original pattern (in the next round of changes) not only in case it fully constructed, but for half-constructed too, so have no other choice to pass original pattern from glob() down to globextend() instead of attempt to reconstruct I implement previously. 2) Instead of copy&paste the same big enough code, make function for it: globfinal(). Modified: head/lib/libc/gen/glob.c Modified: head/lib/libc/gen/glob.c ============================================================================== --- head/lib/libc/gen/glob.c Fri Jul 22 23:13:25 2016 (r303207) +++ head/lib/libc/gen/glob.c Sat Jul 23 01:21:58 2016 (r303208) @@ -145,11 +145,12 @@ typedef uint_fast64_t Char; #define M_RNG META(L'-') #define M_SET META(L'[') #define ismeta(c) (((c)&M_QUOTE) != 0) +#ifdef DEBUG #define isprot(c) (((c)&M_PROTECT) != 0) - +#endif static int compare(const void *, const void *); -static int g_Ctoc(const Char *, char *, size_t, int); +static int g_Ctoc(const Char *, char *, size_t); static int g_lstat(Char *, struct stat *, glob_t *); static DIR *g_opendir(Char *, glob_t *); static const Char *g_strchr(const Char *, wchar_t); @@ -157,19 +158,24 @@ static const Char *g_strchr(const Char * static Char *g_strcat(Char *, const Char *); #endif static int g_stat(Char *, struct stat *, glob_t *); -static int glob0(const Char *, glob_t *, struct glob_limit *, int); +static int glob0(const Char *, glob_t *, struct glob_limit *, + const char *); static int glob1(Char *, glob_t *, struct glob_limit *); static int glob2(Char *, Char *, Char *, Char *, glob_t *, struct glob_limit *); static int glob3(Char *, Char *, Char *, Char *, Char *, glob_t *, struct glob_limit *); -static int globextend(const Char *, glob_t *, struct glob_limit *, int); +static int globextend(const Char *, glob_t *, struct glob_limit *, + const char *); static const Char * globtilde(const Char *, Char *, size_t, glob_t *); -static int globexp0(const Char *, glob_t *, struct glob_limit *); +static int globexp0(const Char *, glob_t *, struct glob_limit *, + const char *); static int globexp1(const Char *, glob_t *, struct glob_limit *); static int globexp2(const Char *, const Char *, glob_t *, struct glob_limit *); +static int globfinal(glob_t *, struct glob_limit *, size_t, + const char *); static int match(Char *, Char *, Char *); #ifdef DEBUG static void qprintf(const char *, Char *); @@ -247,14 +253,14 @@ glob(const char * __restrict pattern, in *bufnext = EOS; if (flags & GLOB_BRACE) - return (globexp0(patbuf, pglob, &limit)); + return (globexp0(patbuf, pglob, &limit, pattern)); else - return (glob0(patbuf, pglob, &limit, 1)); + return (glob0(patbuf, pglob, &limit, pattern)); } static int -globexp0(const Char *pattern, glob_t *pglob, struct glob_limit *limit) -{ +globexp0(const Char *pattern, glob_t *pglob, struct glob_limit *limit, + const char *origpat) { int rv; size_t oldpathc; @@ -265,31 +271,15 @@ globexp0(const Char *pattern, glob_t *pg errno = 0; return (GLOB_NOSPACE); } - return (glob0(pattern, pglob, limit, 1)); + return (glob0(pattern, pglob, limit, origpat)); } oldpathc = pglob->gl_pathc; if ((rv = globexp1(pattern, pglob, limit)) != 0) return rv; - /* - * If there was no match we are going to append the pattern - * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified - * and the pattern did not contain any magic characters - * GLOB_NOMAGIC is there just for compatibility with csh. - */ - if (pglob->gl_pathc == oldpathc) { - if (((pglob->gl_flags & GLOB_NOCHECK) || - ((pglob->gl_flags & GLOB_NOMAGIC) && - !(pglob->gl_flags & GLOB_MAGCHAR)))) - return (globextend(pattern, pglob, limit, 1)); - else - return (GLOB_NOMATCH); - } - if (!(pglob->gl_flags & GLOB_NOSORT)) - qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, - pglob->gl_pathc - oldpathc, sizeof(char *), compare); - return (0); + + return (globfinal(pglob, limit, oldpathc, origpat)); } /* @@ -311,7 +301,7 @@ globexp1(const Char *pattern, glob_t *pg return (globexp2(ptr, pattern, pglob, limit)); } - return (glob0(pattern, pglob, limit, 0)); + return (glob0(pattern, pglob, limit, NULL)); } @@ -359,7 +349,7 @@ globexp2(const Char *ptr, const Char *pa /* Non matching braces; just glob the pattern */ if (i != 0 || *pe == EOS) - return (glob0(pattern, pglob, limit, 0)); + return (glob0(pattern, pglob, limit, NULL)); for (i = 0, pl = pm = ptr; pm <= pe; pm++) switch (*pm) { @@ -475,7 +465,7 @@ globtilde(const Char *pattern, Char *pat /* * Expand a ~user */ - if (g_Ctoc(patbuf, (char *)wbuf, sizeof(wbuf), 0)) + if (g_Ctoc(patbuf, (char *)wbuf, sizeof(wbuf))) return (NULL); if ((pwd = getpwnam((char *)wbuf)) == NULL) return (pattern); @@ -538,8 +528,7 @@ globtilde(const Char *pattern, Char *pat */ static int glob0(const Char *pattern, glob_t *pglob, struct glob_limit *limit, - int final) -{ + const char *origpat) { const Char *qpatnext; int err; size_t oldpathc; @@ -608,25 +597,33 @@ glob0(const Char *pattern, glob_t *pglob if ((err = glob1(patbuf, pglob, limit)) != 0) return(err); - if (final) { - /* - * If there was no match we are going to append the pattern - * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified - * and the pattern did not contain any magic characters - * GLOB_NOMAGIC is there just for compatibility with csh. - */ - if (pglob->gl_pathc == oldpathc) { - if (((pglob->gl_flags & GLOB_NOCHECK) || - ((pglob->gl_flags & GLOB_NOMAGIC) && - !(pglob->gl_flags & GLOB_MAGCHAR)))) - return (globextend(pattern, pglob, limit, 1)); - else - return (GLOB_NOMATCH); - } - if (!(pglob->gl_flags & GLOB_NOSORT)) - qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, - pglob->gl_pathc - oldpathc, sizeof(char *), compare); + if (origpat != NULL) + return (globfinal(pglob, limit, oldpathc, origpat)); + + return (0); +} + +static int +globfinal(glob_t *pglob, struct glob_limit *limit, size_t oldpathc, + const char *origpat) { + /* + * If there was no match we are going to append the origpat + * if GLOB_NOCHECK was specified or if GLOB_NOMAGIC was specified + * and the origpat did not contain any magic characters + * GLOB_NOMAGIC is there just for compatibility with csh. + */ + if (pglob->gl_pathc == oldpathc) { + if (origpat != NULL && ((pglob->gl_flags & GLOB_NOCHECK) || + ((pglob->gl_flags & GLOB_NOMAGIC) && + !(pglob->gl_flags & GLOB_MAGCHAR)))) + return (globextend(NULL, pglob, limit, origpat)); + else + return (GLOB_NOMATCH); } + if (!(pglob->gl_flags & GLOB_NOSORT)) + qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc, + pglob->gl_pathc - oldpathc, sizeof(char *), compare); + return (0); } @@ -690,7 +687,7 @@ glob2(Char *pathbuf, Char *pathend, Char *pathend = EOS; } ++pglob->gl_matchc; - return (globextend(pathbuf, pglob, limit, 0)); + return (globextend(pathbuf, pglob, limit, NULL)); } /* Find end of next segment, copy tentatively to pathend. */ @@ -741,7 +738,7 @@ glob3(Char *pathbuf, Char *pathend, Char } *pathend = EOS; if (pglob->gl_errfunc != NULL && - g_Ctoc(pathbuf, buf, sizeof(buf), 0)) { + g_Ctoc(pathbuf, buf, sizeof(buf))) { errno = 0; return (GLOB_NOSPACE); } @@ -847,7 +844,7 @@ glob3(Char *pathbuf, Char *pathend, Char */ static int globextend(const Char *path, glob_t *pglob, struct glob_limit *limit, - int prot) + const char *origpat) { char **pathv; size_t i, newsize, len; @@ -874,17 +871,21 @@ globextend(const Char *path, glob_t *pgl } pglob->gl_pathv = pathv; - for (p = path; *p++ != EOS;) - continue; - len = MB_CUR_MAX * (size_t)(p - path); /* XXX overallocation */ - if (prot) - len += (size_t)(p - path) - 1; - if ((copy = malloc(len)) != NULL) { - if (g_Ctoc(path, copy, len, prot)) { - free(copy); - errno = 0; - return (GLOB_NOSPACE); + if (origpat != NULL) + copy = strdup(origpat); + else { + for (p = path; *p++ != EOS;) + continue; + len = MB_CUR_MAX * (size_t)(p - path); /* XXX overallocation */ + if ((copy = malloc(len)) != NULL) { + if (g_Ctoc(path, copy, len)) { + free(copy); + errno = 0; + return (GLOB_NOSPACE); + } } + } + if (copy != NULL) { limit->l_string_cnt += strlen(copy) + 1; if ((pglob->gl_flags & GLOB_LIMIT) && limit->l_string_cnt >= GLOB_LIMIT_STRING) { @@ -981,7 +982,7 @@ g_opendir(Char *str, glob_t *pglob) if (*str == EOS) strcpy(buf, "."); else { - if (g_Ctoc(str, buf, sizeof(buf), 0)) { + if (g_Ctoc(str, buf, sizeof(buf))) { errno = ENAMETOOLONG; return (NULL); } @@ -998,7 +999,7 @@ g_lstat(Char *fn, struct stat *sb, glob_ { char buf[MAXPATHLEN + MB_LEN_MAX - 1]; - if (g_Ctoc(fn, buf, sizeof(buf), 0)) { + if (g_Ctoc(fn, buf, sizeof(buf))) { errno = ENAMETOOLONG; return (-1); } @@ -1012,7 +1013,7 @@ g_stat(Char *fn, struct stat *sb, glob_t { char buf[MAXPATHLEN + MB_LEN_MAX - 1]; - if (g_Ctoc(fn, buf, sizeof(buf), 0)) { + if (g_Ctoc(fn, buf, sizeof(buf))) { errno = ENAMETOOLONG; return (-1); } @@ -1033,31 +1034,23 @@ g_strchr(const Char *str, wchar_t ch) } static int -g_Ctoc(const Char *str, char *buf, size_t len, int prot) +g_Ctoc(const Char *str, char *buf, size_t len) { mbstate_t mbs; size_t clen; - Char Ch; - Ch = *str; memset(&mbs, 0, sizeof(mbs)); while (len >= MB_CUR_MAX) { - if (prot && isprot(Ch)) { - Ch = UNPROT(Ch); - *buf++ = '\\'; - len--; - continue; - } - clen = wcrtomb(buf, CHAR(Ch), &mbs); + clen = wcrtomb(buf, CHAR(*str), &mbs); if (clen == (size_t)-1) { /* XXX See initial comment #2. */ - *buf = (char)CHAR(Ch); + *buf = (char)CHAR(*str); clen = 1; memset(&mbs, 0, sizeof(mbs)); } - if (CHAR(Ch) == EOS) + if (CHAR(*str) == EOS) return (0); - Ch = *++str; + str++; buf += clen; len -= clen; }
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