| /* Copyright (C) 1991, 1992, 1993, 1994, 1995 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., 675 Mass Ave, |
| Cambridge, MA 02139, USA. */ |
| |
| /* AIX requires this to be the first thing in the file. */ |
| #if defined (_AIX) && !defined (__GNUC__) |
| #pragma alloca |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <errno.h> |
| #include <sys/types.h> |
| |
| |
| /* 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. */ |
| |
| #if defined (_LIBC) || !defined (__GNU_LIBRARY__) |
| |
| |
| #ifdef STDC_HEADERS |
| #include <stddef.h> |
| #endif |
| |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #ifndef POSIX |
| #ifdef _POSIX_VERSION |
| #define POSIX |
| #endif |
| #endif |
| #endif |
| |
| #if !defined(__GNU_LIBRARY__) && !defined(STDC_HEADERS) |
| extern int errno; |
| #endif |
| |
| #ifndef NULL |
| #define NULL 0 |
| #endif |
| |
| |
| #if defined (POSIX) || defined (HAVE_DIRENT_H) || defined (__GNU_LIBRARY__) |
| #include <dirent.h> |
| #ifndef __GNU_LIBRARY__ |
| #define D_NAMLEN(d) strlen((d)->d_name) |
| #else /* GNU C library. */ |
| #define D_NAMLEN(d) ((d)->d_namlen) |
| #endif /* Not GNU C library. */ |
| #else /* Not POSIX or HAVE_DIRENT_H. */ |
| #define direct dirent |
| #define D_NAMLEN(d) ((d)->d_namlen) |
| #ifdef HAVE_SYS_NDIR_H |
| #include <sys/ndir.h> |
| #endif /* HAVE_SYS_NDIR_H */ |
| #ifdef HAVE_SYS_DIR_H |
| #include <sys/dir.h> |
| #endif /* HAVE_SYS_DIR_H */ |
| #ifdef HAVE_NDIR_H |
| #include <ndir.h> |
| #endif /* HAVE_NDIR_H */ |
| #endif /* POSIX or HAVE_DIRENT_H or __GNU_LIBRARY__. */ |
| |
| #if defined (POSIX) && !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. */ |
| |
| #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. */ |
| |
| #ifndef HAVE_STRCOLL |
| #define strcoll strcmp |
| #endif |
| |
| |
| #ifndef __GNU_LIBRARY__ |
| #ifdef __GNUC__ |
| __inline |
| #endif |
| static char * |
| 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 |
| |
| |
| #if !defined(__alloca) && !defined(__GNU_LIBRARY__) |
| |
| #ifdef __GNUC__ |
| #undef alloca |
| #define alloca(n) __builtin_alloca (n) |
| #else /* Not GCC. */ |
| #if defined (sparc) || defined (HAVE_ALLOCA_H) |
| #include <alloca.h> |
| #else /* Not sparc or HAVE_ALLOCA_H. */ |
| #ifndef _AIX |
| extern char *alloca (); |
| #endif /* Not _AIX. */ |
| #endif /* sparc or HAVE_ALLOCA_H. */ |
| #endif /* GCC. */ |
| |
| #define __alloca alloca |
| |
| #endif |
| |
| #ifndef STDC_HEADERS |
| #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 <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> |
| |
| __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)); |
| 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_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; |
| { |
| 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 oldcount; |
| |
| #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)) |
| { |
| 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; |
| } |
| } |
| } |
| |
| if (!(flags & GLOB_NOSORT)) |
| /* Sort the vector. */ |
| qsort ((__ptr_t) & pglob->gl_pathv[oldcount], |
| pglob->gl_pathc - oldcount, |
| sizeof (char *), collated_compare); |
| |
| return 0; |
| } |
| |
| |
| /* Free storage allocated in PGLOB by a previous `glob' call. */ |
| 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); |
| } |
| } |
| |
| |
| /* Do a collated comparison of A and 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); |
| } |
| |
| |
| /* 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; |
| { |
| 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; |
| } |
| |
| 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; |
| { |
| __ptr_t stream; |
| |
| struct globlink |
| { |
| struct globlink *next; |
| char *name; |
| }; |
| struct globlink *names = NULL; |
| size_t nfound = 0; |
| |
| if (!glob_pattern_p (pattern, !(flags & GLOB_NOESCAPE))) |
| { |
| stream = NULL; |
| flags |= GLOB_NOCHECK; |
| } |
| else |
| { |
| flags |= GLOB_MAGCHAR; |
| |
| 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_ABEND; |
| } |
| else |
| while (1) |
| { |
| const char *name; |
| size_t len; |
| |
| if (__glob_readdir_hook) |
| { |
| name = (*__glob_readdir_hook) (stream); |
| if (name == NULL) |
| break; |
| len = 0; |
| } |
| else |
| { |
| struct dirent *d = readdir ((DIR *) stream); |
| if (d == NULL) |
| break; |
| if (! REAL_DIR_ENTRY (d)) |
| continue; |
| name = d->d_name; |
| #ifdef HAVE_D_NAMLEN |
| len = d->d_namlen; |
| #else |
| len = 0; |
| #endif |
| } |
| |
| if (fnmatch (pattern, name, |
| (!(flags & GLOB_PERIOD) ? FNM_PERIOD : 0) | |
| ((flags & GLOB_NOESCAPE) ? FNM_NOESCAPE : 0)) == 0) |
| { |
| 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); |
| if (flags & GLOB_MARK) |
| new->name[len++] = '/'; |
| new->name[len] = '\0'; |
| new->next = names; |
| names = new; |
| ++nfound; |
| } |
| } |
| } |
| |
| 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); |
| if (flags & GLOB_MARK) |
| names->name[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; |
| |
| if (stream != NULL) |
| { |
| 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 /* _LIBC or not __GNU_LIBRARY__. */ |