Use _CALL_DL_FCT to call function from dynamically loaded object.

[kopensolaris-gnu/glibc.git] / io / fts.c

diff --git a/io/fts.c b/io/fts.c
index 5bc1aff..259274d 100644 (file)
--- a/io/fts.c
+++ b/io/fts.c
@@ -1,5 +1,5 @@
 /*-
 /*-

- * Copyright (c) 1990, 1993
+ * Copyright (c) 1990, 1993, 1994

  *     The Regents of the University of California.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  *     The Regents of the University of California.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without


@@ -32,11 +32,11 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)

-static char sccsid[] = "@(#)fts.c      8.2 (Berkeley) 1/2/94";
+static char sccsid[] = "@(#)fts.c      8.6 (Berkeley) 8/14/94";

 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/param.h>
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/param.h>

-#include <sys/stat.h>
+#include <include/sys/stat.h>

 #include <fcntl.h>
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <dirent.h>
 #include <errno.h>


@@ -57,15 +57,16 @@ static char sccsid[] = "@(#)fts.c   8.2 (Berkeley) 1/2/94";
 #endif
 
 
 #endif
 
 

-static FTSENT  *fts_alloc __P((FTS *, char *, int));
-static FTSENT  *fts_build __P((FTS *, int));
-static void     fts_lfree __P((FTSENT *));
+static FTSENT  *fts_alloc __P((FTS *, const char *, int)) internal_function;
+static FTSENT  *fts_build __P((FTS *, int)) internal_function;
+static void     fts_lfree __P((FTSENT *)) internal_function;

 static void     fts_load __P((FTS *, FTSENT *));
 static void     fts_load __P((FTS *, FTSENT *));

-static size_t   fts_maxarglen __P((char * const *));
-static void     fts_padjust __P((FTS *, void *));
-static int      fts_palloc __P((FTS *, size_t));
-static FTSENT  *fts_sort __P((FTS *, FTSENT *, int));
-static u_short  fts_stat __P((FTS *, FTSENT *, int));
+static size_t   fts_maxarglen __P((char * const *)) internal_function;
+static void     fts_padjust __P((FTS *, void *)) internal_function;
+static int      fts_palloc __P((FTS *, size_t)) internal_function;
+static FTSENT  *fts_sort __P((FTS *, FTSENT *, int)) internal_function;
+static u_short  fts_stat __P((FTS *, struct dirent *, FTSENT *, int))
+     internal_function;

 
 #ifndef MAX
 #define MAX(a, b)      ({ __typeof__ (a) _a = (a); \
 
 #ifndef MAX
 #define MAX(a, b)      ({ __typeof__ (a) _a = (a); \


@@ -100,7 +101,7 @@ fts_open(argv, options, compar)
 
        /* Options check. */
        if (options & ~FTS_OPTIONMASK) {
 
        /* Options check. */
        if (options & ~FTS_OPTIONMASK) {

-               errno = EINVAL;
+               __set_errno (EINVAL);

                return (NULL);
        }
 
                return (NULL);
        }
 


@@ -134,7 +135,7 @@ fts_open(argv, options, compar)
        for (root = NULL, nitems = 0; *argv; ++argv, ++nitems) {
                /* Don't allow zero-length paths. */
                if ((len = strlen(*argv)) == 0) {
        for (root = NULL, nitems = 0; *argv; ++argv, ++nitems) {
                /* Don't allow zero-length paths. */
                if ((len = strlen(*argv)) == 0) {

-                       errno = ENOENT;
+                       __set_errno (ENOENT);

                        goto mem3;
                }
 
                        goto mem3;
                }
 


@@ -142,7 +143,7 @@ fts_open(argv, options, compar)
                p->fts_level = FTS_ROOTLEVEL;
                p->fts_parent = parent;
                p->fts_accpath = p->fts_name;
                p->fts_level = FTS_ROOTLEVEL;
                p->fts_parent = parent;
                p->fts_accpath = p->fts_name;

-               p->fts_info = fts_stat(sp, p, ISSET(FTS_COMFOLLOW));
+               p->fts_info = fts_stat(sp, NULL, p, ISSET(FTS_COMFOLLOW));

 
                /* Command-line "." and ".." are real directories. */
                if (p->fts_info == FTS_DOT)
 
                /* Command-line "." and ".." are real directories. */
                if (p->fts_info == FTS_DOT)


@@ -262,7 +263,7 @@ fts_close(sp)
 
        /* Set errno and return. */
        if (!ISSET(FTS_NOCHDIR) && saved_errno) {
 
        /* Set errno and return. */
        if (!ISSET(FTS_NOCHDIR) && saved_errno) {

-               errno = saved_errno;
+               __set_errno (saved_errno);

                return (-1);
        }
        return (0);
                return (-1);
        }
        return (0);


@@ -298,7 +299,7 @@ fts_read(sp)
 
        /* Any type of file may be re-visited; re-stat and re-turn. */
        if (instr == FTS_AGAIN) {
 
        /* Any type of file may be re-visited; re-stat and re-turn. */
        if (instr == FTS_AGAIN) {

-               p->fts_info = fts_stat(sp, p, 0);
+               p->fts_info = fts_stat(sp, NULL, p, 0);

                return (p);
        }
 
                return (p);
        }
 


@@ -310,7 +311,7 @@ fts_read(sp)
         */
        if (instr == FTS_FOLLOW &&
            (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) {
         */
        if (instr == FTS_FOLLOW &&
            (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) {

-               p->fts_info = fts_stat(sp, p, 1);
+               p->fts_info = fts_stat(sp, NULL, p, 1);

                if (p->fts_info == FTS_D && !ISSET(FTS_NOCHDIR))
                        if ((p->fts_symfd = open(".", O_RDONLY, 0)) < 0) {
                                p->fts_errno = errno;
                if (p->fts_info == FTS_D && !ISSET(FTS_NOCHDIR))
                        if ((p->fts_symfd = open(".", O_RDONLY, 0)) < 0) {
                                p->fts_errno = errno;


@@ -398,7 +399,7 @@ next:       tmp = p;
                if (p->fts_instr == FTS_SKIP)
                        goto next;
                if (p->fts_instr == FTS_FOLLOW) {
                if (p->fts_instr == FTS_SKIP)
                        goto next;
                if (p->fts_instr == FTS_FOLLOW) {

-                       p->fts_info = fts_stat(sp, p, 1);
+                       p->fts_info = fts_stat(sp, NULL, p, 1);

                        if (p->fts_info == FTS_D && !ISSET(FTS_NOCHDIR))
                                if ((p->fts_symfd =
                                    open(".", O_RDONLY, 0)) < 0) {
                        if (p->fts_info == FTS_D && !ISSET(FTS_NOCHDIR))
                                if ((p->fts_symfd =
                                    open(".", O_RDONLY, 0)) < 0) {


@@ -425,7 +426,7 @@ name:               t = sp->fts_path + NAPPEND(p->fts_parent);
                 * can distinguish between error and EOF.
                 */
                free(p);
                 * can distinguish between error and EOF.
                 */
                free(p);

-               errno = 0;
+               __set_errno (0);

                return (sp->fts_cur = NULL);
        }
 
                return (sp->fts_cur = NULL);
        }
 


@@ -446,7 +447,7 @@ name:               t = sp->fts_path + NAPPEND(p->fts_parent);
                if (FCHDIR(sp, p->fts_symfd)) {
                        saved_errno = errno;
                        (void)close(p->fts_symfd);
                if (FCHDIR(sp, p->fts_symfd)) {
                        saved_errno = errno;
                        (void)close(p->fts_symfd);

-                       errno = saved_errno;
+                       __set_errno (saved_errno);

                        SET(FTS_STOP);
                        return (NULL);
                }
                        SET(FTS_STOP);
                        return (NULL);
                }


@@ -476,7 +477,7 @@ fts_set(sp, p, instr)
 {
        if (instr && instr != FTS_AGAIN && instr != FTS_FOLLOW &&
            instr != FTS_NOINSTR && instr != FTS_SKIP) {
 {
        if (instr && instr != FTS_AGAIN && instr != FTS_FOLLOW &&
            instr != FTS_NOINSTR && instr != FTS_SKIP) {

-               errno = EINVAL;
+               __set_errno (EINVAL);

                return (1);
        }
        p->fts_instr = instr;
                return (1);
        }
        p->fts_instr = instr;


@@ -492,7 +493,7 @@ fts_children(sp, instr)
        int fd;
 
        if (instr && instr != FTS_NAMEONLY) {
        int fd;
 
        if (instr && instr != FTS_NAMEONLY) {

-               errno = EINVAL;
+               __set_errno (EINVAL);

                return (NULL);
        }
 
                return (NULL);
        }
 


@@ -503,7 +504,7 @@ fts_children(sp, instr)
         * Errno set to 0 so user can distinguish empty directory from
         * an error.
         */
         * Errno set to 0 so user can distinguish empty directory from
         * an error.
         */

-       errno = 0;
+       __set_errno (0);

 
        /* Fatal errors stop here. */
        if (ISSET(FTS_STOP))
 
        /* Fatal errors stop here. */
        if (ISSET(FTS_STOP))


@@ -566,11 +567,12 @@ fts_children(sp, instr)
  * been found, cutting the stat calls by about 2/3.
  */
 static FTSENT *
  * been found, cutting the stat calls by about 2/3.
  */
 static FTSENT *

+internal_function

 fts_build(sp, type)
        register FTS *sp;
        int type;
 {
 fts_build(sp, type)
        register FTS *sp;
        int type;
 {

-       register struct dirent *dp;
+       struct dirent *dp;

        register FTSENT *p, *head;
        register int nitems;
        FTSENT *cur, *tail;
        register FTSENT *p, *head;
        register int nitems;
        FTSENT *cur, *tail;


@@ -578,6 +580,9 @@ fts_build(sp, type)
        void *adjaddr;
        int cderrno, descend, len, level, maxlen, nlinks, saved_errno;
        char *cp;
        void *adjaddr;
        int cderrno, descend, len, level, maxlen, nlinks, saved_errno;
        char *cp;

+#ifdef DTF_HIDEW
+       int oflag;
+#endif

 
        /* Set current node pointer. */
        cur = sp->fts_cur;
 
        /* Set current node pointer. */
        cur = sp->fts_cur;


@@ -586,7 +591,15 @@ fts_build(sp, type)
         * Open the directory for reading.  If this fails, we're done.
         * If being called from fts_read, set the fts_info field.
         */
         * Open the directory for reading.  If this fails, we're done.
         * If being called from fts_read, set the fts_info field.
         */

-       if ((dirp = opendir(cur->fts_accpath)) == NULL) {
+#ifdef DTF_HIDEW
+       if (ISSET (FTS_WHITEOUT))
+               oflag = DTF_NODUP|DTF_REWIND;
+       else
+               oflag = DTF_HIDEW|DTF_NODUP|DTF_REWIND;
+#else
+# define __opendir2(path, flag) opendir(path)
+#endif
+       if ((dirp = __opendir2 (cur->fts_accpath, oflag)) == NULL) {

                if (type == BREAD) {
                        cur->fts_info = FTS_DNR;
                        cur->fts_errno = errno;
                if (type == BREAD) {
                        cur->fts_info = FTS_DNR;
                        cur->fts_errno = errno;


@@ -661,13 +674,16 @@ fts_build(sp, type)
        /* Read the directory, attaching each entry to the `link' pointer. */
        adjaddr = NULL;
        for (head = tail = NULL, nitems = 0; dp = readdir(dirp);) {
        /* Read the directory, attaching each entry to the `link' pointer. */
        adjaddr = NULL;
        for (head = tail = NULL, nitems = 0; dp = readdir(dirp);) {

+               int namlen;
+

                if (!ISSET(FTS_SEEDOT) && ISDOT(dp->d_name))
                        continue;
 
                if (!ISSET(FTS_SEEDOT) && ISDOT(dp->d_name))
                        continue;
 

-               if ((p = fts_alloc(sp, dp->d_name, (int)dp->d_namlen)) == NULL)
+               namlen = _D_EXACT_NAMLEN (dp);
+               if ((p = fts_alloc(sp, dp->d_name, namlen)) == NULL)

                        goto mem1;
                        goto mem1;

-               if (dp->d_namlen > maxlen) {
-                       if (fts_palloc(sp, (size_t)dp->d_namlen)) {
+               if (namlen > maxlen) {
+                       if (fts_palloc(sp, (size_t)namlen)) {

                                /*
                                 * No more memory for path or structures.  Save
                                 * errno, free up the current structure and the
                                /*
                                 * No more memory for path or structures.  Save
                                 * errno, free up the current structure and the


@@ -678,7 +694,7 @@ mem1:                               saved_errno = errno;
                                        free(p);
                                fts_lfree(head);
                                (void)closedir(dirp);
                                        free(p);
                                fts_lfree(head);
                                (void)closedir(dirp);

-                               errno = saved_errno;
+                               __set_errno (saved_errno);

                                cur->fts_info = FTS_ERR;
                                SET(FTS_STOP);
                                return (NULL);
                                cur->fts_info = FTS_ERR;
                                SET(FTS_STOP);
                                return (NULL);


@@ -687,7 +703,7 @@ mem1:                               saved_errno = errno;
                        maxlen = sp->fts_pathlen - sp->fts_cur->fts_pathlen - 1;
                }
 
                        maxlen = sp->fts_pathlen - sp->fts_cur->fts_pathlen - 1;
                }
 

-               p->fts_pathlen = len + dp->d_namlen + 1;
+               p->fts_pathlen = len + namlen + 1;

                p->fts_parent = sp->fts_cur;
                p->fts_level = level;
 
                p->fts_parent = sp->fts_cur;
                p->fts_level = level;
 


@@ -699,7 +715,7 @@ mem1:                               saved_errno = errno;
                                p->fts_info = FTS_NSOK;
                        p->fts_accpath = cur->fts_accpath;
                } else if (nlinks == 0
                                p->fts_info = FTS_NSOK;
                        p->fts_accpath = cur->fts_accpath;
                } else if (nlinks == 0

-#ifdef DT_DIR
+#if defined DT_DIR && defined _DIRENT_HAVE_D_TYPE

                    || nlinks > 0 &&
                    dp->d_type != DT_DIR && dp->d_type != DT_UNKNOWN
 #endif
                    || nlinks > 0 &&
                    dp->d_type != DT_DIR && dp->d_type != DT_UNKNOWN
 #endif


@@ -715,7 +731,7 @@ mem1:                               saved_errno = errno;
                        } else
                                p->fts_accpath = p->fts_name;
                        /* Stat it. */
                        } else
                                p->fts_accpath = p->fts_name;
                        /* Stat it. */

-                       p->fts_info = fts_stat(sp, p, 0);
+                       p->fts_info = fts_stat(sp, dp, p, 0);

 
                        /* Decrement link count if applicable. */
                        if (nlinks > 0 && (p->fts_info == FTS_D ||
 
                        /* Decrement link count if applicable. */
                        if (nlinks > 0 && (p->fts_info == FTS_D ||


@@ -753,11 +769,15 @@ mem1:                             saved_errno = errno;
        }
 
        /*
        }
 
        /*

-        * If descended after called from fts_children or called from
-        * fts_read and didn't find anything, get back.  If can't get
-        * back, done.
+        * If descended after called from fts_children or after called from
+        * fts_read and nothing found, get back.  At the root level we use
+        * the saved fd; if one of fts_open()'s arguments is a relative path
+        * to an empty directory, we wind up here with no other way back.  If
+        * can't get back, we're done.

         */
         */

-       if (descend && (!nitems || type == BCHILD) && CHDIR(sp, "..")) {
+       if (descend && (type == BCHILD || !nitems) &&
+           (cur->fts_level == FTS_ROOTLEVEL ?
+            FCHDIR (sp, sp->fts_rfd) : CHDIR (sp, ".."))) {

                cur->fts_info = FTS_ERR;
                SET(FTS_STOP);
                return (NULL);
                cur->fts_info = FTS_ERR;
                SET(FTS_STOP);
                return (NULL);


@@ -777,9 +797,11 @@ mem1:                              saved_errno = errno;
 }
 
 static u_short
 }
 
 static u_short

-fts_stat(sp, p, follow)
+internal_function
+fts_stat(sp, dp, p, follow)

        FTS *sp;
        register FTSENT *p;
        FTS *sp;
        register FTSENT *p;

+       struct dirent *dp;

        int follow;
 {
        register FTSENT *t;
        int follow;
 {
        register FTSENT *t;


@@ -791,6 +813,19 @@ fts_stat(sp, p, follow)
        /* If user needs stat info, stat buffer already allocated. */
        sbp = ISSET(FTS_NOSTAT) ? &sb : p->fts_statp;
 
        /* If user needs stat info, stat buffer already allocated. */
        sbp = ISSET(FTS_NOSTAT) ? &sb : p->fts_statp;
 

+#ifdef DT_WHT
+       /*
+        * Whited-out files don't really exist.  However, there's stat(2) file
+        * mask for them, so we set it so that programs (i.e., find) don't have
+        * to test FTS_W separately from other file types.
+        */
+       if (dp != NULL && dp->d_type == DT_WHT) {
+               memset(sbp, 0, sizeof(struct stat));
+               sbp->st_mode = S_IFWHT;
+               return (FTS_W);
+       }
+#endif
+

        /*
         * If doing a logical walk, or application requested FTS_FOLLOW, do
         * a stat(2).  If that fails, check for a non-existent symlink.  If
        /*
         * If doing a logical walk, or application requested FTS_FOLLOW, do
         * a stat(2).  If that fails, check for a non-existent symlink.  If


@@ -800,7 +835,7 @@ fts_stat(sp, p, follow)
                if (stat(p->fts_accpath, sbp)) {
                        saved_errno = errno;
                        if (!lstat(p->fts_accpath, sbp)) {
                if (stat(p->fts_accpath, sbp)) {
                        saved_errno = errno;
                        if (!lstat(p->fts_accpath, sbp)) {

-                               errno = 0;
+                               __set_errno (0);

                                return (FTS_SLNONE);
                        }
                        p->fts_errno = saved_errno;
                                return (FTS_SLNONE);
                        }
                        p->fts_errno = saved_errno;


@@ -849,6 +884,7 @@ err:                bzero(sbp, sizeof(struct stat));
 }
 
 static FTSENT *
 }
 
 static FTSENT *

+internal_function

 fts_sort(sp, head, nitems)
        FTS *sp;
        FTSENT *head;
 fts_sort(sp, head, nitems)
        FTS *sp;
        FTSENT *head;


@@ -881,9 +917,10 @@ fts_sort(sp, head, nitems)
 }
 
 static FTSENT *
 }
 
 static FTSENT *

+internal_function

 fts_alloc(sp, name, namelen)
        FTS *sp;
 fts_alloc(sp, name, namelen)
        FTS *sp;

-       char *name;
+       const char *name;

        register int namelen;
 {
        register FTSENT *p;
        register int namelen;
 {
        register FTSENT *p;


@@ -919,6 +956,7 @@ fts_alloc(sp, name, namelen)
 }
 
 static void
 }
 
 static void

+internal_function

 fts_lfree(head)
        register FTSENT *head;
 {
 fts_lfree(head)
        register FTSENT *head;
 {


@@ -938,6 +976,7 @@ fts_lfree(head)
  * plus 256 bytes so don't realloc the path 2 bytes at a time.
  */
 static int
  * plus 256 bytes so don't realloc the path 2 bytes at a time.
  */
 static int

+internal_function

 fts_palloc(sp, more)
        FTS *sp;
        size_t more;
 fts_palloc(sp, more)
        FTS *sp;
        size_t more;


@@ -952,6 +991,7 @@ fts_palloc(sp, more)
  * already returned.
  */
 static void
  * already returned.
  */
 static void

+internal_function

 fts_padjust(sp, addr)
        FTS *sp;
        void *addr;
 fts_padjust(sp, addr)
        FTS *sp;
        void *addr;


@@ -975,6 +1015,7 @@ fts_padjust(sp, addr)
 }
 
 static size_t
 }
 
 static size_t

+internal_function

 fts_maxarglen(argv)
        char * const *argv;
 {
 fts_maxarglen(argv)
        char * const *argv;
 {