diff options
Diffstat (limited to 'libc/misc/glob/glob.c')
| -rw-r--r-- | libc/misc/glob/glob.c | 1028 |
1 files changed, 1028 insertions, 0 deletions
diff --git a/libc/misc/glob/glob.c b/libc/misc/glob/glob.c new file mode 100644 index 000000000..e6cfb9e78 --- /dev/null +++ b/libc/misc/glob/glob.c @@ -0,0 +1,1028 @@ +/* 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 + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#define HAVE_DIRENT_H + +/* Enable GNU extensions in glob.h. */ +#ifndef _GNU_SOURCE +# define _GNU_SOURCE 1 +#endif + +#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 <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; +} + + +/* 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. + 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) { + __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. */ + { + 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; + +#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. */ + } +#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; + } + } + } + + 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; + } + } + + 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; + } +#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; + } + + 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; + 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; + } + } + } + + 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 + memcpy(names->name, pattern, len); + names->name[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: + { + 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; + } + return GLOB_NOSPACE; +} + +#endif /* Not ELIDE_CODE. */ |