diff options
| -rw-r--r-- | libc/misc/glob/glob.c | 1414 |
1 files changed, 451 insertions, 963 deletions
diff --git a/libc/misc/glob/glob.c b/libc/misc/glob/glob.c index e6cfb9e78..e275018d7 100644 --- a/libc/misc/glob/glob.c +++ b/libc/misc/glob/glob.c @@ -1,1028 +1,516 @@ -/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 of the - License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with this library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* AIX requires this to be the first thing in the file. */ -#if defined _AIX && !defined __GNUC__ -#pragma alloca -#endif +/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc. -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. -#define HAVE_DIRENT_H +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. -/* Enable GNU extensions in glob.h. */ -#ifndef _GNU_SOURCE -# define _GNU_SOURCE 1 -#endif +You should have received a copy of the GNU Library General Public +License along with this library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ +#include <stdlib.h> +#include <string.h> #include <errno.h> #include <sys/types.h> #include <sys/stat.h> - -/* Outcomment the following line for production quality code. */ -/* #define NDEBUG 1 */ -#include <assert.h> - -#include <stdio.h> /* Needed on stupid SunOS for assert. */ - - -/* Comment out all this code if we are using the GNU C Library, and are not - actually compiling the library itself. This code is part of the GNU C - Library, but also included in many other GNU distributions. Compiling - and linking in this code is a waste when using the GNU C library - (especially if it is a shared library). Rather than having every GNU - program understand `configure --with-gnu-libc' and omit the object files, - it is simpler to just do this in the source for each such file. */ - -#define GLOB_INTERFACE_VERSION 1 -#if !defined _LIBC && defined __GNU_LIBRARY__ && __GNU_LIBRARY__ > 1 -# include <gnu-versions.h> -# if _GNU_GLOB_INTERFACE_VERSION == GLOB_INTERFACE_VERSION -# define ELIDE_CODE -# endif -#endif - -#ifndef ELIDE_CODE - -#if defined STDC_HEADERS || defined __GNU_LIBRARY__ -# include <stddef.h> -#endif - -#if defined HAVE_UNISTD_H || defined _LIBC -# include <unistd.h> -# ifndef POSIX -# ifdef _POSIX_VERSION -# define POSIX -# endif -# endif -#endif - -#if !defined _AMIGA && !defined VMS && !defined WINDOWS32 -# include <pwd.h> -#endif - -#if !defined __GNU_LIBRARY__ && !defined STDC_HEADERS -extern int errno; -#endif -#ifndef __set_errno -# define __set_errno(val) errno = (val) -#endif - -#ifndef NULL -# define NULL 0 -#endif - - -#if defined HAVE_DIRENT_H || defined __GNU_LIBRARY__ -# include <dirent.h> -# define NAMLEN(dirent) strlen((dirent)->d_name) -#else -# define dirent direct -# define NAMLEN(dirent) (dirent)->d_namlen -# ifdef HAVE_SYS_NDIR_H -# include <sys/ndir.h> -# endif -# ifdef HAVE_SYS_DIR_H -# include <sys/dir.h> -# endif -# ifdef HAVE_NDIR_H -# include <ndir.h> -# endif -# ifdef HAVE_VMSDIR_H -# include "vmsdir.h" -# endif /* HAVE_VMSDIR_H */ -#endif - - -/* In GNU systems, <dirent.h> defines this macro for us. */ -#ifdef _D_NAMLEN -# undef NAMLEN -# define NAMLEN(d) _D_NAMLEN(d) -#endif - -/* When used in the GNU libc the symbol _DIRENT_HAVE_D_TYPE is available - if the `d_type' member for `struct dirent' is available. */ -#ifdef _DIRENT_HAVE_D_TYPE -# define HAVE_D_TYPE 1 -#endif - - -#if (defined POSIX || defined WINDOWS32) && !defined __GNU_LIBRARY__ -/* Posix does not require that the d_ino field be present, and some - systems do not provide it. */ -# define REAL_DIR_ENTRY(dp) 1 -#else -# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0) -#endif /* POSIX */ - -#if defined STDC_HEADERS || defined __GNU_LIBRARY__ -# include <stdlib.h> -# include <string.h> -# define ANSI_STRING -#else /* No standard headers. */ - -extern char *getenv(); - -# ifdef HAVE_STRING_H -# include <string.h> -# define ANSI_STRING -# else -# include <strings.h> -# endif -# ifdef HAVE_MEMORY_H -# include <memory.h> -# endif - -extern char *malloc(), *realloc(); -extern void free(); - -extern void qsort(); -extern void abort(), exit(); - -#endif /* Standard headers. */ - -#ifndef ANSI_STRING - -# ifndef bzero -extern void bzero(); -# endif -# ifndef bcopy -extern void bcopy(); -# endif - -# define memcpy(d, s, n) bcopy ((s), (d), (n)) -# define strrchr rindex -/* memset is only used for zero here, but let's be paranoid. */ -# define memset(s, better_be_zero, n) \ - ((void) ((better_be_zero) == 0 ? (bzero((s), (n)), 0) : (abort(), 0))) -#endif /* Not ANSI_STRING. */ - -#if !defined HAVE_STRCOLL && !defined _LIBC -# define strcoll strcmp -#endif - -#if !defined HAVE_MEMPCPY && __GLIBC__ - 0 == 2 && __GLIBC_MINOR__ >= 1 -# define HAVE_MEMPCPY 1 -# define mempcpy(Dest, Src, Len) __mempcpy (Dest, Src, Len) -#endif - - -#ifndef __GNU_LIBRARY__ -# ifdef __GNUC__ -__inline -# endif -# ifndef __SASC -# ifdef WINDOWS32 -static void * -# else -static char * -# endif -my_realloc(p, n) -char *p; -unsigned int n; -{ - /* These casts are the for sake of the broken Ultrix compiler, - which warns of illegal pointer combinations otherwise. */ - if (p == NULL) - return (char *) malloc(n); - return (char *) realloc(p, n); -} - -# define realloc my_realloc -# endif /* __SASC */ -#endif /* __GNU_LIBRARY__ */ - - -#if !defined __alloca && !defined __GNU_LIBRARY__ - -# ifdef __GNUC__ -# undef alloca -# define alloca(n) __builtin_alloca (n) -# else /* Not GCC. */ -# ifdef HAVE_ALLOCA_H -# include <alloca.h> -# else /* Not HAVE_ALLOCA_H. */ -# ifndef _AIX -# ifdef WINDOWS32 -# include <malloc.h> -# else -extern char *alloca(); -# endif /* WINDOWS32 */ -# endif /* Not _AIX. */ -# endif /* sparc or HAVE_ALLOCA_H. */ -# endif /* GCC. */ - -# define __alloca alloca - -#endif - -#ifndef __GNU_LIBRARY__ -# define __stat stat -# ifdef STAT_MACROS_BROKEN -# undef S_ISDIR -# endif -# ifndef S_ISDIR -# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) -# endif -#endif - -#if !(defined STDC_HEADERS || defined __GNU_LIBRARY__) -# undef size_t -# define size_t unsigned int -#endif - -/* Some system header files erroneously define these. - We want our own definitions from <fnmatch.h> to take precedence. */ -#undef FNM_PATHNAME -#undef FNM_NOESCAPE -#undef FNM_PERIOD +#include <unistd.h> +#include <dirent.h> +#include <malloc.h> #include <fnmatch.h> - -/* Some system header files erroneously define these. - We want our own definitions from <glob.h> to take precedence. */ -#undef GLOB_ERR -#undef GLOB_MARK -#undef GLOB_NOSORT -#undef GLOB_DOOFFS -#undef GLOB_NOCHECK -#undef GLOB_APPEND -#undef GLOB_NOESCAPE -#undef GLOB_PERIOD #include <glob.h> -static -#if __GNUC__ - 0 >= 2 -/*inline*/ -#endif -const char *next_brace_sub __P((const char *begin)); -static int glob_in_dir __P((const char *pattern, const char *directory, - int flags, - int (*errfunc) __P((const char *, int)), - glob_t * pglob)); -static int prefix_array __P((const char *prefix, char **array, size_t n)); -static int collated_compare __P((const __ptr_t, const __ptr_t)); - - -/* Find the end of the sub-pattern in a brace expression. We define - this as an inline function if the compiler permits. */ -static -#if __GNUC__ - 0 >= 2 -/*inline*/ -#endif -const char *next_brace_sub(begin) -const char *begin; -{ - unsigned int depth = 0; - const char *cp = begin; - - while (1) { - if (depth == 0) { - if (*cp != ',' && *cp != '}' && *cp != '\0') { - if (*cp == '{') - ++depth; - ++cp; - continue; - } - } else { - while (*cp != '\0' && (*cp != '}' || depth > 0)) { - if (*cp == '}') - --depth; - ++cp; - } - if (*cp == '\0') - /* An incorrectly terminated brace expression. */ - return NULL; - - continue; - } - break; - } - - return cp; -} -/* Return nonzero if PATTERN contains any metacharacters. - Metacharacters can be quoted with backslashes if QUOTE is nonzero. */ -int __glob_pattern_p(pattern, quote) -const char *pattern; -int quote; -{ - register const char *p; - int open = 0; - - for (p = pattern; *p != '\0'; ++p) - switch (*p) { - case '?': - case '*': - return 1; - - case '\\': - if (quote && p[1] != '\0') - ++p; - break; - - case '[': - open = 1; - break; - - case ']': - if (open) - return 1; - break; - } - - return 0; -} +__ptr_t (*__glob_opendir_hook) __P ((const char *directory)); +const char *(*__glob_readdir_hook) __P ((__ptr_t stream)); +void (*__glob_closedir_hook) __P ((__ptr_t stream)); +static int glob_pattern_p __P ((const char *pattern, int quote)); +static int glob_in_dir __P ((const char *pattern, const char *directory, + int flags, + int (*errfunc) __P ((const char *, int)), + glob_t *pglob)); +static int prefix_array __P ((const char *prefix, char **array, size_t n, + int add_slash)); +static int collated_compare __P ((const __ptr_t, const __ptr_t)); /* Do glob searching for PATTERN, placing results in PGLOB. The bits defined above may be set in FLAGS. If a directory cannot be opened or read and ERRFUNC is not nil, it is called with the pathname that caused the error, and the `errno' value from the failing call; if it returns non-zero - `glob' returns GLOB_ABORTED; if it returns zero, the error is ignored. + `glob' returns GLOB_ABEND; if it returns zero, the error is ignored. If memory cannot be allocated for PGLOB, GLOB_NOSPACE is returned. Otherwise, `glob' returns zero. */ -int glob(pattern, flags, errfunc, pglob) -const char *pattern; -int flags; -int (*errfunc) __P((const char *, int)); -glob_t *pglob; +int +glob (pattern, flags, errfunc, pglob) + const char *pattern; + int flags; + int (*errfunc) __P ((const char *, int)); + glob_t *pglob; { - const char *filename; - char *dirname; - size_t dirlen; - int status; - int oldcount; - - if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0) { - __set_errno(EINVAL); - return -1; - } - - if (flags & GLOB_BRACE) { - const char *begin = strchr(pattern, '{'); - - if (begin != NULL) { - /* Allocate working buffer large enough for our work. Note that - we have at least an opening and closing brace. */ - int firstc; - char *alt_start; - const char *p; - const char *next; - const char *rest; - size_t rest_len; - -#ifdef __GNUC__ - char onealt[strlen(pattern) - 1]; -#else - char *onealt = (char *) malloc(strlen(pattern) - 1); - - if (onealt == NULL) { - if (!(flags & GLOB_APPEND)) - globfree(pglob); - return GLOB_NOSPACE; - } -#endif - - /* We know the prefix for all sub-patterns. */ -#ifdef HAVE_MEMPCPY - alt_start = mempcpy(onealt, pattern, begin - pattern); -#else - memcpy(onealt, pattern, begin - pattern); - alt_start = &onealt[begin - pattern]; -#endif - - /* Find the first sub-pattern and at the same time find the - rest after the closing brace. */ - next = next_brace_sub(begin + 1); - if (next == NULL) { - /* It is an illegal expression. */ -#ifndef __GNUC__ - free(onealt); -#endif - return glob(pattern, flags & ~GLOB_BRACE, errfunc, pglob); - } - - /* Now find the end of the whole brace expression. */ - rest = next; - while (*rest != '}') { - rest = next_brace_sub(rest + 1); - if (rest == NULL) { - /* It is an illegal expression. */ -#ifndef __GNUC__ - free(onealt); -#endif - return glob(pattern, flags & ~GLOB_BRACE, errfunc, - pglob); - } - } - /* Please note that we now can be sure the brace expression - is well-formed. */ - rest_len = strlen(++rest) + 1; - - /* We have a brace expression. BEGIN points to the opening {, - NEXT points past the terminator of the first element, and END - points past the final }. We will accumulate result names from - recursive runs for each brace alternative in the buffer using - GLOB_APPEND. */ - - if (!(flags & GLOB_APPEND)) { - /* This call is to set a new vector, so clear out the - vector so we can append to it. */ - pglob->gl_pathc = 0; - pglob->gl_pathv = NULL; - } - firstc = pglob->gl_pathc; - - p = begin + 1; - while (1) { - int result; - - /* Construct the new glob expression. */ -#ifdef HAVE_MEMPCPY - mempcpy(mempcpy(alt_start, p, next - p), rest, rest_len); -#else - memcpy(alt_start, p, next - p); - memcpy(&alt_start[next - p], rest, rest_len); -#endif - - result = glob(onealt, - ((flags & ~(GLOB_NOCHECK | GLOB_NOMAGIC)) - | GLOB_APPEND), errfunc, pglob); - - /* If we got an error, return it. */ - if (result && result != GLOB_NOMATCH) { -#ifndef __GNUC__ - free(onealt); -#endif - if (!(flags & GLOB_APPEND)) - globfree(pglob); - return result; - } - - if (*next == '}') - /* We saw the last entry. */ - break; - - p = next + 1; - next = next_brace_sub(p); - assert(next != NULL); - } - -#ifndef __GNUC__ - free(onealt); -#endif - - if (pglob->gl_pathc != firstc) - /* We found some entries. */ - return 0; - else if (!(flags & (GLOB_NOCHECK | GLOB_NOMAGIC))) - return GLOB_NOMATCH; - } - } - - /* Find the filename. */ - filename = strrchr(pattern, '/'); - if (filename == NULL) { - filename = pattern; -#ifdef _AMIGA - dirname = (char *) ""; -#else - dirname = (char *) "."; -#endif - dirlen = 0; - } else if (filename == pattern) { - /* "/pattern". */ - dirname = (char *) "/"; - dirlen = 1; - ++filename; - } else { - dirlen = filename - pattern; - dirname = (char *) __alloca(dirlen + 1); -#ifdef HAVE_MEMPCPY - *((char *) mempcpy(dirname, pattern, dirlen)) = '\0'; -#else - memcpy(dirname, pattern, dirlen); - dirname[dirlen] = '\0'; -#endif - ++filename; - } - - if (filename[0] == '\0' && dirlen > 1) - /* "pattern/". Expand "pattern", appending slashes. */ + const char *filename; + char *dirname; + size_t dirlen; + int status; + int oldcount; + + if (pattern == NULL || pglob == NULL || (flags & ~__GLOB_FLAGS) != 0) + { + errno = EINVAL; + return -1; + } + + /* Find the filename. */ + filename = strrchr (pattern, '/'); + if (filename == NULL) + { + filename = pattern; + dirname = (char *) "."; + dirlen = 0; + } + else if (filename == pattern) + { + /* "/pattern". */ + dirname = (char *) "/"; + dirlen = 1; + ++filename; + } + else + { + dirlen = filename - pattern; + dirname = (char *) alloca (dirlen + 1); + memcpy (dirname, pattern, dirlen); + dirname[dirlen] = '\0'; + ++filename; + } + + if (filename[0] == '\0' && dirlen > 1) + /* "pattern/". Expand "pattern", appending slashes. */ + { + int val = glob (dirname, flags | GLOB_MARK, errfunc, pglob); + if (val == 0) + pglob->gl_flags = (pglob->gl_flags & ~GLOB_MARK) | (flags & GLOB_MARK); + return val; + } + + if (!(flags & GLOB_APPEND)) + { + pglob->gl_pathc = 0; + pglob->gl_pathv = NULL; + } + + oldcount = pglob->gl_pathc; + + if (glob_pattern_p (dirname, !(flags & GLOB_NOESCAPE))) + { + /* The directory name contains metacharacters, so we + have to glob for the directory, and then glob for + the pattern in each directory found. */ + glob_t dirs; + register int i; + + status = glob (dirname, + ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE)) | + GLOB_NOSORT), + errfunc, &dirs); + if (status != 0) + return status; + + /* We have successfully globbed the preceding directory name. + For each name we found, call glob_in_dir on it and FILENAME, + appending the results to PGLOB. */ + for (i = 0; i < dirs.gl_pathc; ++i) { - int val = glob(dirname, flags | GLOB_MARK, errfunc, pglob); + int oldcount; - if (val == 0) - pglob->gl_flags = - (pglob->gl_flags & ~GLOB_MARK) | (flags & GLOB_MARK); - return val; +#ifdef SHELL + { + /* Make globbing interruptible in the bash shell. */ + extern int interrupt_state; + + if (interrupt_state) + { + globfree (&dirs); + globfree (&files); + return GLOB_ABEND; + } + } +#endif /* SHELL. */ + + oldcount = pglob->gl_pathc; + status = glob_in_dir (filename, dirs.gl_pathv[i], + (flags | GLOB_APPEND) & ~GLOB_NOCHECK, + errfunc, pglob); + if (status == GLOB_NOMATCH) + /* No matches in this directory. Try the next. */ + continue; + + if (status != 0) + { + globfree (&dirs); + globfree (pglob); + return status; + } + + /* Stick the directory on the front of each name. */ + if (prefix_array (dirs.gl_pathv[i], + &pglob->gl_pathv[oldcount], + pglob->gl_pathc - oldcount, + flags & GLOB_MARK)) + { + globfree (&dirs); + globfree (pglob); + return GLOB_NOSPACE; + } } - if (!(flags & GLOB_APPEND)) { - pglob->gl_pathc = 0; - pglob->gl_pathv = NULL; - } + flags |= GLOB_MAGCHAR; - oldcount = pglob->gl_pathc; - -#ifndef VMS - if ((flags & GLOB_TILDE) && dirname[0] == '~') { - if (dirname[1] == '\0' || dirname[1] == '/') { - /* Look up home directory. */ - char *home_dir = getenv("HOME"); - - if (home_dir == NULL || home_dir[0] == '\0') - home_dir = (char *) "~"; /* No luck. */ - - /* Now construct the full directory. */ - if (dirname[1] == '\0') - dirname = home_dir; - else { - char *newp; - size_t home_len = strlen(home_dir); - - newp = (char *) __alloca(home_len + dirlen); -# ifdef HAVE_MEMPCPY - mempcpy(mempcpy(newp, home_dir, home_len), - &dirname[1], dirlen); -# else - memcpy(newp, home_dir, home_len); - memcpy(&newp[home_len], &dirname[1], dirlen); -# endif - dirname = newp; - } - } -# if !defined _AMIGA && !defined WINDOWS32 - else { - char *end_name = strchr(dirname, '/'); - char *user_name; - char *home_dir; - - if (end_name == NULL) - user_name = dirname + 1; - else { - user_name = (char *) __alloca(end_name - dirname); -# ifdef HAVE_MEMPCPY - *((char *) - mempcpy(user_name, dirname + 1, end_name - dirname)) = - '\0'; -# else - memcpy(user_name, dirname + 1, end_name - dirname); - user_name[end_name - dirname - 1] = '\0'; -# endif - } - - /* Look up specific user's home directory. */ - { -//# if defined HAVE_GETPWNAM_R || defined _LIBC -# if 0 - size_t buflen = sysconf(_SC_GETPW_R_SIZE_MAX); - char *pwtmpbuf = (char *) __alloca(buflen); - struct passwd pwbuf, *p; - - if (__getpwnam_r(user_name, &pwbuf, pwtmpbuf, buflen, &p) - >= 0) - home_dir = p->pw_dir; - else - home_dir = NULL; -# else - struct passwd *p = getpwnam(user_name); - - if (p != NULL) - home_dir = p->pw_dir; - else - home_dir = NULL; -# endif - } - /* If we found a home directory use this. */ - if (home_dir != NULL) { - char *newp; - size_t home_len = strlen(home_dir); - size_t rest_len = end_name == NULL ? 0 : strlen(end_name); - - newp = (char *) __alloca(home_len + rest_len + 1); -# ifdef HAVE_MEMPCPY - *((char *) mempcpy(mempcpy(newp, home_dir, home_len), - end_name, rest_len)) = '\0'; -# else - memcpy(newp, home_dir, home_len); - memcpy(&newp[home_len], end_name, rest_len); - newp[home_len + rest_len] = '\0'; -# endif - dirname = newp; - } - } -# endif /* Not Amiga && not WINDOWS32. */ + if (pglob->gl_pathc == oldcount) + { + /* No matches. */ + if (flags & GLOB_NOCHECK) + { + size_t len = strlen (pattern) + 1; + char *patcopy = (char *) malloc (len); + if (patcopy == NULL) + return GLOB_NOSPACE; + memcpy (patcopy, pattern, len); + + pglob->gl_pathv + = (char **) realloc (pglob->gl_pathv, + (pglob->gl_pathc + + ((flags & GLOB_DOOFFS) ? + pglob->gl_offs : 0) + + 1 + 1) * + sizeof (char *)); + if (pglob->gl_pathv == NULL) + { + free (patcopy); + return GLOB_NOSPACE; + } + + if (flags & GLOB_DOOFFS) + while (pglob->gl_pathc < pglob->gl_offs) + pglob->gl_pathv[pglob->gl_pathc++] = NULL; + + pglob->gl_pathv[pglob->gl_pathc++] = patcopy; + pglob->gl_pathv[pglob->gl_pathc] = NULL; + pglob->gl_flags = flags; } -#endif /* Not VMS. */ - - if (__glob_pattern_p(dirname, !(flags & GLOB_NOESCAPE))) { - /* The directory name contains metacharacters, so we - have to glob for the directory, and then glob for - the pattern in each directory found. */ - glob_t dirs; - register int i; - - status = glob(dirname, - ((flags & (GLOB_ERR | GLOB_NOCHECK | GLOB_NOESCAPE)) - | GLOB_NOSORT | GLOB_ONLYDIR), errfunc, &dirs); - if (status != 0) - return status; - - /* We have successfully globbed the preceding directory name. - For each name we found, call glob_in_dir on it and FILENAME, - appending the results to PGLOB. */ - for (i = 0; i < dirs.gl_pathc; ++i) { - int oldcount; - -#ifdef SHELL - { - /* Make globbing interruptible in the bash shell. */ - extern int interrupt_state; - - if (interrupt_state) { - globfree(&dirs); - globfree(&files); - return GLOB_ABORTED; - } - } -#endif /* SHELL. */ - - oldcount = pglob->gl_pathc; - status = glob_in_dir(filename, dirs.gl_pathv[i], - ((flags | GLOB_APPEND) - & ~(GLOB_NOCHECK | GLOB_ERR)), - errfunc, pglob); - if (status == GLOB_NOMATCH) - /* No matches in this directory. Try the next. */ - continue; - - if (status != 0) { - globfree(&dirs); - globfree(pglob); - return status; - } - - /* Stick the directory on the front of each name. */ - if (prefix_array(dirs.gl_pathv[i], - &pglob->gl_pathv[oldcount], - pglob->gl_pathc - oldcount)) { - globfree(&dirs); - globfree(pglob); - return GLOB_NOSPACE; - } - } - - flags |= GLOB_MAGCHAR; - - if (pglob->gl_pathc == oldcount) { - /* No matches. */ - if (flags & GLOB_NOCHECK) { - size_t len = strlen(pattern) + 1; - char *patcopy = (char *) malloc(len); - - if (patcopy == NULL) - return GLOB_NOSPACE; - memcpy(patcopy, pattern, len); - - pglob->gl_pathv - = (char **) realloc(pglob->gl_pathv, - (pglob->gl_pathc + - ((flags & GLOB_DOOFFS) ? - pglob->gl_offs : 0) + - 1 + 1) * sizeof(char *)); - - if (pglob->gl_pathv == NULL) { - free(patcopy); - return GLOB_NOSPACE; - } - - if (flags & GLOB_DOOFFS) - while (pglob->gl_pathc < pglob->gl_offs) - pglob->gl_pathv[pglob->gl_pathc++] = NULL; - - pglob->gl_pathv[pglob->gl_pathc++] = patcopy; - pglob->gl_pathv[pglob->gl_pathc] = NULL; - pglob->gl_flags = flags; - } else - return GLOB_NOMATCH; - } - } else { - status = glob_in_dir(filename, dirname, flags, errfunc, pglob); - if (status != 0) - return status; - - if (dirlen > 0) { - /* Stick the directory on the front of each name. */ - if (prefix_array(dirname, - &pglob->gl_pathv[oldcount], - pglob->gl_pathc - oldcount)) { - globfree(pglob); - return GLOB_NOSPACE; - } - } + else + { + return GLOB_NOMATCH; } - - if (flags & GLOB_MARK) { - /* Append slashes to directory names. */ - int i; - struct stat st; - - for (i = oldcount; i < pglob->gl_pathc; ++i) - if (((flags & GLOB_ALTDIRFUNC) ? - (*pglob->gl_stat) (pglob->gl_pathv[i], &st) : - __stat(pglob->gl_pathv[i], &st)) == 0 && - S_ISDIR(st.st_mode)) { - size_t len = strlen(pglob->gl_pathv[i]) + 2; - char *new = realloc(pglob->gl_pathv[i], len); - - if (new == NULL) { - globfree(pglob); - return GLOB_NOSPACE; - } - strcpy(&new[len - 2], "/"); - pglob->gl_pathv[i] = new; - } + } + } + else + { + status = glob_in_dir (filename, dirname, flags, errfunc, pglob); + if (status != 0) + return status; + + if (dirlen > 0) + { + /* Stick the directory on the front of each name. */ + if (prefix_array (dirname, + &pglob->gl_pathv[oldcount], + pglob->gl_pathc - oldcount, + flags & GLOB_MARK)) + { + globfree (pglob); + return GLOB_NOSPACE; + } } - - if (!(flags & GLOB_NOSORT)) - /* Sort the vector. */ - qsort((__ptr_t) & pglob->gl_pathv[oldcount], - pglob->gl_pathc - oldcount, - - sizeof(char *), collated_compare); - - return 0; + } + + if (flags & GLOB_MARK) + { + /* Append slashes to directory names. glob_in_dir has already + allocated the extra character for us. */ + int i; + struct stat st; + for (i = oldcount; i < pglob->gl_pathc; ++i) + if (lstat (pglob->gl_pathv[i], &st) == 0 && + S_ISDIR (st.st_mode)) + strcat (pglob->gl_pathv[i], "/"); + } + + if (!(flags & GLOB_NOSORT)) + /* Sort the vector. */ + qsort ((__ptr_t) &pglob->gl_pathv[oldcount], + pglob->gl_pathc - oldcount, + sizeof (char *), (__compar_fn_t)collated_compare); + + return 0; } /* Free storage allocated in PGLOB by a previous `glob' call. */ -void globfree(pglob) -register glob_t *pglob; +void +globfree (pglob) + register glob_t *pglob; { - if (pglob->gl_pathv != NULL) { - register int i; - - for (i = 0; i < pglob->gl_pathc; ++i) - if (pglob->gl_pathv[i] != NULL) - free((__ptr_t) pglob->gl_pathv[i]); - free((__ptr_t) pglob->gl_pathv); - } + if (pglob->gl_pathv != NULL) + { + register int i; + for (i = 0; i < pglob->gl_pathc; ++i) + if (pglob->gl_pathv[i] != NULL) + free ((__ptr_t) pglob->gl_pathv[i]); + free ((__ptr_t) pglob->gl_pathv); + } } /* Do a collated comparison of A and B. */ -static int collated_compare(a, b) -const __ptr_t a; -const __ptr_t b; +static int +collated_compare (a, b) + const __ptr_t a; + const __ptr_t b; { - const char *const s1 = *(const char *const *const) a; - const char *const s2 = *(const char *const *const) b; - - if (s1 == s2) - return 0; - if (s1 == NULL) - return 1; - if (s2 == NULL) - return -1; - return strcoll(s1, s2); + const char *const s1 = *(const char *const * const) a; + const char *const s2 = *(const char *const * const) b; + + if (s1 == s2) + return 0; + if (s1 == NULL) + return 1; + if (s2 == NULL) + return -1; + return strcoll (s1, s2); } /* Prepend DIRNAME to each of N members of ARRAY, replacing ARRAY's elements in place. Return nonzero if out of memory, zero if successful. A slash is inserted between DIRNAME and each elt of ARRAY, - unless DIRNAME is just "/". Each old element of ARRAY is freed. */ -static int prefix_array(dirname, array, n) -const char *dirname; -char **array; -size_t n; + unless DIRNAME is just "/". Each old element of ARRAY is freed. + If ADD_SLASH is non-zero, allocate one character more than + necessary, so that a slash can be appended later. */ +static int +prefix_array (dirname, array, n, add_slash) + const char *dirname; + char **array; + size_t n; + int add_slash; { - register size_t i; - size_t dirlen = strlen(dirname); - - if (dirlen == 1 && dirname[0] == '/') - /* DIRNAME is just "/", so normal prepending would get us "//foo". - We want "/foo" instead, so don't prepend any chars from DIRNAME. */ - dirlen = 0; - - for (i = 0; i < n; ++i) { - size_t eltlen = strlen(array[i]) + 1; - char *new = (char *) malloc(dirlen + 1 + eltlen); - - if (new == NULL) { - while (i > 0) - free((__ptr_t) array[--i]); - return 1; - } -#ifdef HAVE_MEMPCPY - { - char *endp = (char *) mempcpy(new, dirname, dirlen); - - *endp++ = '/'; - mempcpy(endp, array[i], eltlen); - } -#else - memcpy(new, dirname, dirlen); - new[dirlen] = '/'; - memcpy(&new[dirlen + 1], array[i], eltlen); -#endif - free((__ptr_t) array[i]); - array[i] = new; + register size_t i; + size_t dirlen = strlen (dirname); + + if (dirlen == 1 && dirname[0] == '/') + /* DIRNAME is just "/", so normal prepending would get us "//foo". + We want "/foo" instead, so don't prepend any chars from DIRNAME. */ + dirlen = 0; + + for (i = 0; i < n; ++i) + { + size_t eltlen = strlen (array[i]) + 1; + char *new = (char *) malloc (dirlen + 1 + eltlen + (add_slash ? 1 : 0)); + if (new == NULL) + { + while (i > 0) + free ((__ptr_t) array[--i]); + return 1; } - return 0; + memcpy (new, dirname, dirlen); + new[dirlen] = '/'; + memcpy (&new[dirlen + 1], array[i], eltlen); + free ((__ptr_t) array[i]); + array[i] = new; + } + + return 0; } +/* Return nonzero if PATTERN contains any metacharacters. + Metacharacters can be quoted with backslashes if QUOTE is nonzero. */ +static int +glob_pattern_p (pattern, quote) + const char *pattern; + int quote; +{ + register const char *p; + int open = 0; + + for (p = pattern; *p != '\0'; ++p) + switch (*p) + { + case '?': + case '*': + return 1; + + case '\\': + if (quote) + ++p; + break; + + case '[': + open = 1; + break; + + case ']': + if (open) + return 1; + break; + } + + return 0; +} + /* Like `glob', but PATTERN is a final pathname component, and matches are searched for in DIRECTORY. The GLOB_NOSORT bit in FLAGS is ignored. No sorting is ever done. The GLOB_APPEND flag is assumed to be set (always appends). */ -static int glob_in_dir(pattern, directory, flags, errfunc, pglob) -const char *pattern; -const char *directory; -int flags; -int (*errfunc) __P((const char *, int)); -glob_t *pglob; +static int +glob_in_dir (pattern, directory, flags, errfunc, pglob) + const char *pattern; + const char *directory; + int flags; + int (*errfunc) __P ((const char *, int)); + glob_t *pglob; { - __ptr_t stream; - - struct globlink { - struct globlink *next; - char *name; - }; - struct globlink *names = NULL; - size_t nfound; - int meta; - int save; - - stream = ((flags & GLOB_ALTDIRFUNC) ? - (*pglob->gl_opendir) (directory) : - (__ptr_t) opendir(directory)); - if (stream == NULL) { - if ((errfunc != NULL && (*errfunc) (directory, errno)) || - (flags & GLOB_ERR)) return GLOB_ABORTED; - nfound = 0; - meta = 0; - } else if (pattern[0] == '\0') { - /* This is a special case for matching directories like in - "*a/". */ - names = (struct globlink *) __alloca(sizeof(struct globlink)); - - names->name = (char *) malloc(1); - if (names->name == NULL) - goto memory_error; - names->name[0] = '\0'; - names->next = NULL; - nfound = 1; - meta = 0; - } else { - nfound = 0; - meta = __glob_pattern_p(pattern, !(flags & GLOB_NOESCAPE)); - if (meta) - flags |= GLOB_MAGCHAR; - - while (1) { - const char *name; - size_t len; - struct dirent *d = ((flags & GLOB_ALTDIRFUNC) ? - (*pglob->gl_readdir) (stream) : - readdir((DIR *) stream)); - - if (d == NULL) - break; - if (!REAL_DIR_ENTRY(d)) - continue; - -#ifdef HAVE_D_TYPE - /* If we shall match only directories use the information - provided by the dirent call if possible. */ - if ((flags & GLOB_ONLYDIR) - && d->d_type != DT_UNKNOWN && d->d_type != DT_DIR) - continue; -#endif - - name = d->d_name; - - if ((!meta && strcmp(pattern, name) == 0) - || fnmatch(pattern, name, - (!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) | - ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0) -#ifdef _AMIGA - | FNM_CASEFOLD -#endif - ) == 0) { - struct globlink *new - - = - (struct globlink *) __alloca(sizeof(struct globlink)); - len = NAMLEN(d); - new->name = (char *) malloc(len + 1); - if (new->name == NULL) - goto memory_error; -#ifdef HAVE_MEMPCPY - *((char *) mempcpy((__ptr_t) new->name, name, len)) = '\0'; -#else - memcpy((__ptr_t) new->name, name, len); - new->name[len] = '\0'; -#endif - new->next = names; - names = new; - ++nfound; - if (!meta) - break; - } - } + __ptr_t stream; + + struct globlink + { + struct globlink *next; + char *name; + }; + struct globlink *names = NULL; + size_t nfound = 0; + int meta; + + stream = (__glob_opendir_hook ? (*__glob_opendir_hook) (directory) + : (__ptr_t) opendir (directory)); + if (stream == NULL) + { + if ((errfunc != NULL && (*errfunc) (directory, errno)) || + (flags & GLOB_ERR)) + return GLOB_ABORTED; + } + + meta = glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE)); + + if (meta) + flags |= GLOB_MAGCHAR; + + while (1) + { + const char *name; + size_t len; + + if (__glob_readdir_hook) + { + name = (*__glob_readdir_hook) (stream); + if (name == NULL) + break; + len = 0; } - - if (nfound == 0 && (flags & GLOB_NOMAGIC) && !meta) - flags |= GLOB_NOCHECK; - - if (nfound == 0 && (flags & GLOB_NOCHECK)) { - size_t len = strlen(pattern); - - nfound = 1; - names = (struct globlink *) __alloca(sizeof(struct globlink)); - - names->next = NULL; - names->name = (char *) malloc(len + 1); - if (names->name == NULL) - goto memory_error; -#ifdef HAVE_MEMPCPY - *((char *) mempcpy(names->name, pattern, len)) = '\0'; + else + { + struct dirent *d = readdir ((DIR *) stream); + if (d == NULL) + break; + if (! (d->d_ino != 0)) + continue; + name = d->d_name; +#ifdef HAVE_D_NAMLEN + len = d->d_namlen; #else - memcpy(names->name, pattern, len); - names->name[len] = '\0'; + len = 0; #endif } - - if (nfound != 0) { - pglob->gl_pathv - = (char **) realloc(pglob->gl_pathv, - (pglob->gl_pathc + - ((flags & GLOB_DOOFFS) ? pglob-> - gl_offs : 0) + nfound + - - 1) * sizeof(char *)); - if (pglob->gl_pathv == NULL) - goto memory_error; - - if (flags & GLOB_DOOFFS) - while (pglob->gl_pathc < pglob->gl_offs) - pglob->gl_pathv[pglob->gl_pathc++] = NULL; - - for (; names != NULL; names = names->next) - pglob->gl_pathv[pglob->gl_pathc++] = names->name; - pglob->gl_pathv[pglob->gl_pathc] = NULL; - - pglob->gl_flags = flags; - } - - save = errno; - if (flags & GLOB_ALTDIRFUNC) - (*pglob->gl_closedir) (stream); - else - closedir((DIR *) stream); - __set_errno(save); - - return nfound == 0 ? GLOB_NOMATCH : 0; - - memory_error: + + if ((!meta && strcmp (pattern, name) == 0) + || fnmatch (pattern, name, + (!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) | + ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)) == 0) { - int save = errno; - - if (flags & GLOB_ALTDIRFUNC) - (*pglob->gl_closedir) (stream); - else - closedir((DIR *) stream); - __set_errno(save); - } - while (names != NULL) { - if (names->name != NULL) - free((__ptr_t) names->name); - names = names->next; + struct globlink *new + = (struct globlink *) alloca (sizeof (struct globlink)); + if (len == 0) + len = strlen (name); + new->name + = (char *) malloc (len + ((flags & GLOB_MARK) ? 1 : 0) + 1); + if (new->name == NULL) + goto memory_error; + memcpy ((__ptr_t) new->name, name, len); + new->name[len] = '\0'; + new->next = names; + names = new; + ++nfound; + if (!meta) + break; } - return GLOB_NOSPACE; + } + + if (nfound == 0 && (flags & GLOB_NOCHECK)) + { + size_t len = strlen (pattern); + nfound = 1; + names = (struct globlink *) alloca (sizeof (struct globlink)); + names->next = NULL; + names->name = (char *) malloc (len + (flags & GLOB_MARK ? 1 : 0) + 1); + if (names->name == NULL) + goto memory_error; + memcpy (names->name, pattern, len); + names->name[len] = '\0'; + } + + pglob->gl_pathv + = (char **) realloc (pglob->gl_pathv, + (pglob->gl_pathc + + ((flags & GLOB_DOOFFS) ? pglob->gl_offs : 0) + + nfound + 1) * + sizeof (char *)); + if (pglob->gl_pathv == NULL) + goto memory_error; + + if (flags & GLOB_DOOFFS) + while (pglob->gl_pathc < pglob->gl_offs) + pglob->gl_pathv[pglob->gl_pathc++] = NULL; + + for (; names != NULL; names = names->next) + pglob->gl_pathv[pglob->gl_pathc++] = names->name; + pglob->gl_pathv[pglob->gl_pathc] = NULL; + + pglob->gl_flags = flags; + + { + int save = errno; + if (__glob_closedir_hook) + (*__glob_closedir_hook) (stream); + else + (void) closedir ((DIR *) stream); + errno = save; + } + return nfound == 0 ? GLOB_NOMATCH : 0; + + memory_error: + { + int save = errno; + if (__glob_closedir_hook) + (*__glob_closedir_hook) (stream); + else + (void) closedir ((DIR *) stream); + errno = save; + } + while (names != NULL) + { + if (names->name != NULL) + free ((__ptr_t) names->name); + names = names->next; + } + return GLOB_NOSPACE; } -#endif /* Not ELIDE_CODE. */ |