file.c File Reference

#include "vfatlib.h"
#include <debug.h>

Include dependency graph for file.c:

Go to the source code of this file.

Macros
#define	NDEBUG

Functions
static void	put_char (char **p, unsigned char c)
char *	file_name (unsigned char *fixed)
int	file_cvt (unsigned char *name, unsigned char *fixed)
void	file_add (char *path, FD_TYPE type)
FDSC **	file_cd (FDSC **curr, char *fixed)
static FDSC **	file_find (FDSC **dir, char *fixed)
FD_TYPE	file_type (FDSC **curr, char *fixed)
void	file_modify (FDSC **curr, char *fixed)
static void	report_unused (FDSC *this)
void	file_unused (void)

Variables
FDSC *	fp_root = NULL

Macro Definition Documentation

NDEBUG

#define NDEBUG

Definition at line 29 of file file.c.

Function Documentation

file_add()

void file_add	(	char *	path,
		FD_TYPE	type
	)

Definition at line 142 of file file.c.

{
    FDSC **current, *walk;
    char name[MSDOS_NAME];
    char *here;
 
    current = &fp_root;
    if (*path != '/')
    die("%s: Absolute path required.", path);
    path++;
    while (1) {
    if ((here = strchr(path, '/')))
        *here = 0;
    if (!file_cvt((unsigned char *)path, (unsigned char *)name))
        exit(2);
    for (walk = *current; walk; walk = walk->next)
        if (!here && (!strncmp(name, walk->name, MSDOS_NAME) || (type ==
                                     fdt_undelete
                                     &&
                                     !strncmp
                                     (name + 1,
                                      walk->name
                                      + 1,
                                      MSDOS_NAME
                                      - 1))))
        die("Ambiguous name: \"%s\"", path);
        else if (here && !strncmp(name, walk->name, MSDOS_NAME))
        break;
    if (!walk) {
        walk = alloc(sizeof(FDSC));
        strncpy(walk->name, name, MSDOS_NAME);
        walk->type = here ? fdt_none : type;
        walk->first = NULL;
        walk->next = *current;
        *current = walk;
    }
    current = &walk->first;
    if (!here)
        break;
    *here = '/';
    path = here + 1;
    }
}

file_cd()

FDSC ** file_cd	(	FDSC **	curr,
		char *	fixed
	)

Definition at line 186 of file file.c.

{
    FDSC **walk;
 
    if (!curr || !*curr)
    return NULL;
    for (walk = curr; *walk; walk = &(*walk)->next)
    if (!strncmp((*walk)->name, fixed, MSDOS_NAME) && (*walk)->first)
        return &(*walk)->first;
    return NULL;
}

Referenced by subdirs().

file_cvt()

int file_cvt	(	unsigned char *	name,
		unsigned char *	fixed
	)

Definition at line 84 of file file.c.

{
    unsigned char c;
    int size, ext, cnt;
 
    size = 8;
    ext = 0;
    while (*name) {
    c = *name;
    if (c < ' ' || c > 0x7e || strchr("*?<>|\"/", c)) {
        printf("Invalid character in name. Use \\ooo for special "
           "characters.\n");
        return 0;
    }
    if (c == '.') {
        if (ext) {
        printf("Duplicate dots in name.\n");
        return 0;
        }
        while (size--)
        *fixed++ = ' ';
        size = 3;
        ext = 1;
        name++;
        continue;
    }
    if (c == '\\') {
        c = 0;
        name++;
        for (cnt = 3; cnt; cnt--) {
        if (*name < '0' || *name > '7') {
            printf("Expected three octal digits.\n");
            return 0;
        }
        c = c * 8 + *name++ - '0';
        }
        name--;
    }
    if (islower(c))
        c = toupper(c);
    if (size) {
        *fixed++ = c;
        size--;
    }
    name++;
    }
    if (*name || size == 8)
    return 0;
    if (!ext) {
    while (size--)
        *fixed++ = ' ';
    size = 3;
    }
    while (size--)
    *fixed++ = ' ';
    return 1;
}

Referenced by file_add(), and rename_file().

file_find()

static FDSC ** file_find ( FDSC **  dir, char *  fixed  )

static

Definition at line 198 of file file.c.

{
    if (!dir || !*dir)
    return NULL;
    if (*(unsigned char *)fixed == DELETED_FLAG) {
    while (*dir) {
        if (!strncmp((*dir)->name + 1, fixed + 1, MSDOS_NAME - 1)
        && !(*dir)->first)
        return dir;
        dir = &(*dir)->next;
    }
    return NULL;
    }
    while (*dir) {
    if (!strncmp((*dir)->name, fixed, MSDOS_NAME) && !(*dir)->first)
        return dir;
    dir = &(*dir)->next;
    }
    return NULL;
}

Referenced by file_modify(), and file_type().

file_modify()

void file_modify	(	FDSC **	curr,
		char *	fixed
	)

Definition at line 230 of file file.c.

{
    FDSC **this, *next;
 
    if (!(this = file_find(curr, fixed)))
    die("Internal error: file_find failed");
    switch ((*this)->type) {
    case fdt_drop:
    printf("Dropping %s\n", file_name((unsigned char *)fixed));
    *(unsigned char *)fixed = DELETED_FLAG;
    break;
    case fdt_undelete:
    *fixed = *(*this)->name;
    printf("Undeleting %s\n", file_name((unsigned char *)fixed));
    break;
    default:
    die("Internal error: file_modify");
    }
    next = (*this)->next;
    free(*this);
    *this = next;
}

Referenced by add_file().

file_name()

char * file_name

(

unsigned char *

fixed

)

Construct the "pretty-printed" representation of the name in a short directory entry.

Parameters

[in]

fixed

Pointer to name[0] of a DIR_ENT

Returns

Pointer to static string containing pretty "8.3" equivalent of the name in the directory entry.

Definition at line 58 of file file.c.

{
    static char path[MSDOS_NAME * 4 + 2];
    char *p;
    int i, j;
 
    p = path;
    for (i = j = 0; i < 8; i++)
    if (fixed[i] != ' ') {
        while (j++ < i)
        *p++ = ' ';
        put_char(&p, fixed[i]);
    }
    if (strncmp((const char *)(fixed + 8), "   ", 3)) {
    *p++ = '.';
    for (i = j = 0; i < 3; i++)
        if (fixed[i + 8] != ' ') {
        while (j++ < i)
            *p++ = ' ';
        put_char(&p, fixed[i + 8]);
        }
    }
    *p = 0;
    return path;
}

file_type()

FD_TYPE file_type	(	FDSC **	curr,
		char *	fixed
	)

Definition at line 221 of file file.c.

{
    FDSC **this;
 
    if ((this = file_find(curr, fixed)))
    return (*this)->type;
    return fdt_none;
}

Referenced by add_file(), CVfdShExt::DoVfdDrop(), map_acemask(), map_dacl_2_nfs4acl(), OnImage(), OnTarget(), Open(), PrintImageInfo(), Save(), UpdateImageInfo(), VfdImageTip(), and VfdOpenImage().

file_unused()

void file_unused

(

void

)

Definition at line 269 of file file.c.

{
    report_unused(fp_root);
}

Referenced by VfatChkdsk().

put_char()

static void put_char ( char **  p, unsigned char  c  )

static

Definition at line 34 of file file.c.

{
#ifndef __REACTOS__
    if (dos_char_to_printable(p, c))
    return;
#endif
    if ((c >= ' ' && c < 0x7f) || c >= 0xa0)
    *(*p)++ = c;
    else {
    *(*p)++ = '\\';
    *(*p)++ = '0' + (c >> 6);
    *(*p)++ = '0' + ((c >> 3) & 7);
    *(*p)++ = '0' + (c & 7);
    }
}

Referenced by file_name().

report_unused()

static void report_unused ( FDSC *  this )

static

Definition at line 253 of file file.c.

{
    FDSC *next;
 
    while (this) {
    next = this->next;
    if (this->first)
        report_unused(this->first);
    else if (this->type != fdt_none)
        printf("Warning: did not %s file %s\n", this->type == fdt_drop ?
           "drop" : "undelete", file_name((unsigned char *)this->name));
    free(this);
    this = next;
    }
}

Referenced by file_unused(), and report_unused().

Variable Documentation

fp_root

FDSC* fp_root = NULL

Definition at line 32 of file file.c.

Referenced by file_add(), file_unused(), and scan_root().