rpmio/fts.c File Reference

#include "system.h"
#include "fts.h"
#include "rpmio.h"
#include "rpmurl.h"

Go to the source code of this file.

Defines

#define __set_errno(val)   (*__errno_location ()) = (val)
#define __open   open
#define __close   close
#define __fchdir   fchdir
#define ALIGNBYTES   (__alignof__ (long double) - 1)
#define ALIGN(p)   (((unsigned long int) (p) + ALIGNBYTES) & ~ALIGNBYTES)
#define MAX(a, b)
#define ISDOT(a)   (a[0] == '.' && (!a[1] || (a[1] == '.' && !a[2])))
#define CLR(opt)   (sp->fts_options &= ~(opt))
#define ISSET(opt)   (sp->fts_options & (opt))
#define SET(opt)   (sp->fts_options |= (opt))
#define FCHDIR(sp, fd)   (!ISSET(FTS_NOCHDIR) && __fchdir(fd))
#define BCHILD   1
#define BNAMES   2
#define BREAD   3
#define MAXPATHLEN   1024
#define NAPPEND(p)
#define __opendir2(path, flag)   (*sp->fts_opendir) (path)
#define ADJUST(p)

Functions

static FTSENT * fts_alloc (FTS *sp, const char *name, int namelen)
static FTSENT * fts_build (FTS *sp, int type)
static void fts_lfree (FTSENT *head)
static void fts_load (FTS *sp, FTSENT *p)
static size_t fts_maxarglen (char *const *argv)
static void fts_padjust (FTS *sp, FTSENT *head)
static int fts_palloc (FTS *sp, size_t more)
static FTSENT * fts_sort (FTS *sp, FTSENT *head, int nitems)
static u_short fts_stat (FTS *sp, FTSENT *p, int follow)
static int fts_safe_changedir (FTS *sp, FTSENT *p, int fd, const char *path)
FTS * Fts_open (char *const *argv, int options, int(*compar)(const FTSENT **, const FTSENT **))
 Create a handle for file hierarchy traversal.
int Fts_close (FTS *sp)
 Destroy a file hierarchy traversal handle.
FTSENT * Fts_read (FTS *sp)
 Return next node in the file hierarchy traversal.
int Fts_set (FTS *sp, FTSENT *p, int instr)
 Modify the traversal for a file set member.
FTSENT * Fts_children (FTS *sp, int instr)
 Return list of children of the current node.

Define Documentation

#define __close   close

Definition at line 74 of file fts.c.

Referenced by Fts_children(), Fts_close(), Fts_read(), and fts_safe_changedir().

#define __fchdir   fchdir

Definition at line 75 of file fts.c.

Referenced by Fts_children(), Fts_close(), and fts_safe_changedir().

#define __open   open

Definition at line 73 of file fts.c.

Referenced by Fts_children(), Fts_open(), Fts_read(), and fts_safe_changedir().

#define __opendir2 ( path,
flag   )     (*sp->fts_opendir) (path)

Referenced by fts_build().

#define __set_errno ( val   )     (*__errno_location ()) = (val)

Definition at line 72 of file fts.c.

Referenced by fts_build(), Fts_children(), Fts_close(), Fts_open(), fts_palloc(), Fts_read(), fts_safe_changedir(), Fts_set(), and fts_stat().

#define ADJUST ( p   ) 

Value:

do {                                                    \
        if ((p)->fts_accpath != (p)->fts_name) {                        \
                (p)->fts_accpath =                                      \
                    (char *)addr + ((p)->fts_accpath - (p)->fts_path);  \
        }                                                               \
        (p)->fts_path = addr;                                           \
} while (0)

Referenced by fts_padjust().

#define ALIGN ( p   )     (((unsigned long int) (p) + ALIGNBYTES) & ~ALIGNBYTES)

Definition at line 86 of file fts.c.

Referenced by fts_alloc().

#define ALIGNBYTES   (__alignof__ (long double) - 1)

Definition at line 82 of file fts.c.

Referenced by fts_alloc().

#define BCHILD   1

Definition at line 131 of file fts.c.

Referenced by fts_build(), and Fts_children().

#define BNAMES   2

Definition at line 132 of file fts.c.

Referenced by fts_build(), and Fts_children().

#define BREAD   3

Definition at line 133 of file fts.c.

Referenced by fts_build(), and Fts_read().

#define CLR ( opt   )     (sp->fts_options &= ~(opt))

Definition at line 124 of file fts.c.

Referenced by Fts_read().

#define FCHDIR ( sp,
fd   )     (!ISSET(FTS_NOCHDIR) && __fchdir(fd))

Definition at line 128 of file fts.c.

Referenced by fts_build(), and Fts_read().

#define ISDOT ( a   )     (a[0] == '.' && (!a[1] || (a[1] == '.' && !a[2])))

Definition at line 122 of file fts.c.

Referenced by fts_build(), and fts_stat().

#define ISSET ( opt   )     (sp->fts_options & (opt))

Definition at line 125 of file fts.c.

Referenced by fts_alloc(), fts_build(), Fts_children(), Fts_close(), Fts_open(), Fts_read(), fts_safe_changedir(), and fts_stat().

#define MAX ( a,
b   ) 

Value:

({ __typeof__ (a) _a = (a); \
                           __typeof__ (b) _b = (b); \
                           _a > _b ? _a : _b; })

Definition at line 117 of file fts.c.

Referenced by Fts_open().

#define MAXPATHLEN   1024

#define NAPPEND ( p   ) 

Value:

(p->fts_path[p->fts_pathlen - 1] == '/'                         \
            ? p->fts_pathlen - 1 : p->fts_pathlen)

Definition at line 361 of file fts.c.

Referenced by fts_build(), and Fts_read().

#define SET ( opt   )     (sp->fts_options |= (opt))

Definition at line 126 of file fts.c.

Referenced by fts_build(), Fts_children(), Fts_open(), and Fts_read().

Function Documentation

static FTSENT * fts_alloc ( FTS *  sp,
const char *  name,
int  namelen 
) [static]

Definition at line 1053 of file fts.c.

References ALIGN, ALIGNBYTES, _ftsent::fts_errno, _ftsent::fts_flags, _ftsent::fts_instr, _ftsent::fts_name, _ftsent::fts_namelen, FTS_NOINSTR, FTS_NOSTAT, _ftsent::fts_number, FTS::fts_path, _ftsent::fts_path, _ftsent::fts_pointer, _ftsent::fts_statp, and ISSET.

Referenced by fts_build(), and Fts_open().

static FTSENT * fts_build ( FTS *  sp,
int  type 
) [static]

Definition at line 663 of file fts.c.

References __opendir2, __set_errno, BCHILD, BNAMES, BREAD, dirent, errno, FCHDIR, _ftsent::fts_accpath, fts_alloc(), FTS::fts_closedir, FTS::fts_cur, FTS_D, FTS_DC, FTS_DNR, FTS_DONTCHDIR, FTS_DOT, FTS_DP, FTS_ERR, _ftsent::fts_errno, _ftsent::fts_flags, _ftsent::fts_info, _ftsent::fts_level, fts_lfree(), _ftsent::fts_link, _ftsent::fts_name, _ftsent::fts_namelen, _ftsent::fts_nlink, FTS_NOCHDIR, FTS_NOSTAT, FTS_NS, FTS_NSOK, fts_padjust(), fts_palloc(), _ftsent::fts_parent, _ftsent::fts_path, FTS::fts_path, _ftsent::fts_pathlen, FTS::fts_pathlen, FTS_PHYSICAL, FTS::fts_readdir, FTS_ROOTLEVEL, fts_safe_changedir(), FTS_SEEDOT, fts_sort(), fts_stat(), FTS_STOP, FTS_WHITEOUT, ISDOT, ISSET, NAPPEND, nitems, and SET.

Referenced by Fts_children(), and Fts_read().

FTSENT* Fts_children ( FTS *  sp,
int  instr 
)

Return list of children of the current node.

Parameters:
sp file hierarchy state
instr 
Returns:
file set member

Definition at line 579 of file fts.c.

References __close, __fchdir, __open, __set_errno, BCHILD, BNAMES, _ftsent::fts_accpath, fts_build(), FTS::fts_child, FTS::fts_cur, FTS_D, _ftsent::fts_info, FTS_INIT, _ftsent::fts_level, fts_lfree(), _ftsent::fts_link, FTS_NAMEONLY, FTS_NOCHDIR, FTS_ROOTLEVEL, FTS_STOP, ISSET, and SET.

Referenced by rpmfts_Children().

int Fts_close ( FTS *  sp  ) 

Destroy a file hierarchy traversal handle.

Parameters:
sp file hierarchy state
Returns:
0 on sucess, -1 on error

Definition at line 305 of file fts.c.

References __close, __fchdir, __set_errno, errno, FTS::fts_array, FTS::fts_child, FTS::fts_cur, _ftsent::fts_level, fts_lfree(), _ftsent::fts_link, FTS_NOCHDIR, _ftsent::fts_parent, FTS::fts_path, FTS::fts_rfd, FTS_ROOTLEVEL, and ISSET.

Referenced by main(), recurseDir(), rpmfts_state(), rpmgiFree(), and rpmgiNext().

static void fts_lfree ( FTSENT *  head  )  [static]

Definition at line 1091 of file fts.c.

References _ftsent::fts_link.

Referenced by fts_build(), Fts_children(), Fts_close(), Fts_open(), and Fts_read().

static void fts_load ( FTS *  sp,
FTSENT *  p 
) [static]

Definition at line 279 of file fts.c.

References _ftsent::fts_accpath, _ftsent::fts_dev, FTS::fts_dev, _ftsent::fts_name, _ftsent::fts_namelen, _ftsent::fts_path, FTS::fts_path, and _ftsent::fts_pathlen.

Referenced by Fts_read().

static size_t fts_maxarglen ( char *const *  argv  )  [static]

Definition at line 1171 of file fts.c.

Referenced by Fts_open().

FTS* Fts_open ( char *const *  argv,
int  options,
int(*)(const FTSENT **, const FTSENT **)  compar 
)

Create a handle for file hierarchy traversal.

Parameters:
argv paths that compose a logical file hierarchy
options traversal options
compar traversal ordering (or NULL)
Returns:
file hierarchy state (or NULL on error)

Definition at line 136 of file fts.c.

References __open, __set_errno, Closedir(), _ftsent::fts_accpath, fts_alloc(), FTS_COMFOLLOW, FTS_D, FTS_DOT, _ftsent::fts_info, FTS_INIT, _ftsent::fts_level, fts_lfree(), _ftsent::fts_link, FTS_LOGICAL, fts_maxarglen(), _ftsent::fts_name, FTS_NOCHDIR, FTS_OPTIONMASK, fts_palloc(), _ftsent::fts_parent, FTS_ROOTLEVEL, FTS_ROOTPARENTLEVEL, fts_sort(), fts_stat(), ISSET, Lstat(), MAX, MAXPATHLEN, nitems, Opendir(), Readdir(), SET, Stat(), URL_IS_DASH, URL_IS_FTP, URL_IS_HKP, URL_IS_HTTP, URL_IS_HTTPS, URL_IS_PATH, URL_IS_UNKNOWN, and urlIsURL().

Referenced by main(), recurseDir(), rpmfts_state(), and rpmgiNext().

static void fts_padjust ( FTS *  sp,
FTSENT *  head 
) [static]

Definition at line 1147 of file fts.c.

References ADJUST, FTS::fts_child, _ftsent::fts_level, _ftsent::fts_link, _ftsent::fts_parent, FTS::fts_path, and FTS_ROOTLEVEL.

Referenced by fts_build().

static int fts_palloc ( FTS *  sp,
size_t  more 
) [static]

Definition at line 1111 of file fts.c.

References __set_errno, FTS::fts_path, and FTS::fts_pathlen.

Referenced by fts_build(), and Fts_open().

FTSENT* Fts_read ( FTS *  sp  ) 

Return next node in the file hierarchy traversal.

Parameters:
sp file hierarchy state
Returns:
file set member

Definition at line 366 of file fts.c.

References __close, __open, __set_errno, BREAD, CLR, errno, FCHDIR, _ftsent::fts_accpath, FTS_AGAIN, fts_build(), FTS::fts_child, FTS::fts_cur, FTS_D, _ftsent::fts_dev, FTS::fts_dev, FTS_DONTCHDIR, FTS_DP, FTS_ERR, _ftsent::fts_errno, _ftsent::fts_flags, FTS_FOLLOW, _ftsent::fts_info, _ftsent::fts_instr, _ftsent::fts_level, fts_lfree(), _ftsent::fts_link, fts_load(), _ftsent::fts_name, _ftsent::fts_namelen, FTS_NAMEONLY, FTS_NOCHDIR, FTS_NOINSTR, _ftsent::fts_parent, FTS::fts_path, _ftsent::fts_pathlen, FTS::fts_rfd, FTS_ROOTLEVEL, FTS_ROOTPARENTLEVEL, fts_safe_changedir(), FTS_SKIP, FTS_SL, FTS_SLNONE, fts_stat(), FTS_STOP, _ftsent::fts_symfd, FTS_SYMFOLLOW, FTS_XDEV, ISSET, NAPPEND, next, and SET.

Referenced by main(), recurseDir(), rpmfts_step(), and rpmgiWalkReadHeader().

static int fts_safe_changedir ( FTS *  sp,
FTSENT *  p,
int  fd,
const char *  path 
) [static]

Definition at line 1187 of file fts.c.

References __close, __fchdir, __open, __set_errno, errno, _ftsent::fts_dev, _ftsent::fts_ino, FTS_NOCHDIR, and ISSET.

Referenced by fts_build(), and Fts_read().

int Fts_set ( FTS *  sp,
FTSENT *  p,
int  instr 
)

Modify the traversal for a file set member.

Parameters:
sp file hierarchy state
p file set member
instr new disposition for file set member
Returns:
0 on sucess, -1 on error

Definition at line 565 of file fts.c.

References __set_errno, FTS_AGAIN, FTS_FOLLOW, _ftsent::fts_instr, FTS_NOINSTR, and FTS_SKIP.

Referenced by ftsPrint(), and rpmfts_Set().

static FTSENT * fts_sort ( FTS *  sp,
FTSENT *  head,
int  nitems 
) [static]

Definition at line 1015 of file fts.c.

References FTS::fts_array, FTS::fts_compar, _ftsent::fts_link, and FTS::fts_nitems.

Referenced by fts_build(), and Fts_open().

static u_short fts_stat ( FTS *  sp,
FTSENT *  p,
int  follow 
) [static]

Definition at line 931 of file fts.c.

References __set_errno, errno, _ftsent::fts_accpath, _ftsent::fts_cycle, FTS_D, FTS_DC, FTS_DEFAULT, _ftsent::fts_dev, FTS_DOT, _ftsent::fts_errno, FTS_F, _ftsent::fts_flags, _ftsent::fts_ino, _ftsent::fts_level, FTS_LOGICAL, FTS::fts_lstat, _ftsent::fts_name, _ftsent::fts_nlink, FTS_NOSTAT, FTS_NS, _ftsent::fts_parent, FTS_ROOTLEVEL, FTS_SL, FTS_SLNONE, FTS::fts_stat, _ftsent::fts_statp, FTS_W, ISDOT, ISSET, and S_ISLNK.

Referenced by fts_build(), Fts_open(), and Fts_read().

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