file.h File Reference

#include "msdos_fs.h"

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Classes
struct	_fptr

Typedefs
typedef struct _fptr	FDSC

Enumerations
enum	FD_TYPE { fdt_none, fdt_drop, fdt_undelete }

Functions
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)
FD_TYPE	file_type (FDSC **curr, char *fixed)
void	file_modify (FDSC **curr, char *fixed)
void	file_unused (void)

Variables
FDSC *	fp_root

Typedef Documentation

FDSC

typedef struct _fptr FDSC

Enumeration Type Documentation

FD_TYPE

enum FD_TYPE

Enumerator
fdt_none
fdt_drop
fdt_undelete

Definition at line 28 of file file.h.

{ fdt_none, fdt_drop, fdt_undelete } FD_TYPE;

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_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;
}

Referenced by file_modify(), report_unused(), test_CreateFile(), test_file_all_name_information(), and test_file_name_information().

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().

Variable Documentation

fp_root

FDSC* fp_root

Definition at line 32 of file file.c.

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