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/*
Copyright (c) 1990-2005 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 2005-Feb-10 or later
(the contents of which are also included in zip.h) for terms of use.
If, for some reason, all these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
*/
#include "zip.h"
#ifndef UTIL /* the companion #endif is a bit of ways down ... */
#include <time.h>
#if defined(__IBMC__) || defined(MSC)
#include <direct.h>
#endif
/* Extra malloc() space in names for cutpath() */
#define PAD 0
#define PATH_END '/'
#include "os2zip.h"
/* Library functions not in (most) header files */
extern char *label;
local ulg label_time = 0;
local ulg label_mode = 0;
local time_t label_utim = 0;
/* Local functions */
local char *readd OF((DIR *));
local char *readd(d)
DIR *d; /* directory stream to read from */
/* Return a pointer to the next name in the directory stream d, or NULL if
no more entries or an error occurs. */
{
struct dirent *e;
e = readdir(d);
return e == NULL ? (char *) NULL : e->d_name;
}
int wild(w)
char *w; /* path/pattern to match */
/* If not in exclude mode, expand the pattern based on the contents of the
file system. Return an error code in the ZE_ class. */
{
DIR *d; /* stream for reading directory */
char *e; /* name found in directory */
int r; /* temporary variable */
char *n; /* constructed name from directory */
int f; /* true if there was a match */
char *a; /* alloc'ed space for name */
char *p; /* path */
char *q; /* name */
char v[5]; /* space for device current directory */
if (volume_label == 1) {
volume_label = 2;
label = getVolumeLabel((w != NULL && w[1] == ':') ? to_up(w[0]) : '\0',
&label_time, &label_mode, &label_utim);
if (label != NULL) {
newname(label, 0, 0);
}
if (w == NULL || (w[1] == ':' && w[2] == '\0')) return ZE_OK;
/* "zip -$ foo a:" can be used to force drive name */
}
if (w == NULL)
return ZE_OK;
/* special handling of stdin request */
if (strcmp(w, "-") == 0) /* if compressing stdin */
return newname(w, 0, 0);
/* Allocate and copy pattern */
if ((p = a = malloc(strlen(w) + 1)) == NULL)
return ZE_MEM;
strcpy(p, w);
/* catch special case: treat "*.*" as "*" for DOS-impaired people */
r = strlen(p);
if (strcmp(p + r - 3, "*.*") == 0)
p[r - 2] = '\0';
/* Normalize path delimiter as '/'. */
for (q = p; *q; q++) /* use / consistently */
if (*q == '\\')
*q = '/';
/* Only name can have special matching characters */
if ((q = isshexp(p)) != NULL &&
(strrchr(q, '/') != NULL || strrchr(q, ':') != NULL))
{
free((zvoid *)a);
return ZE_PARMS;
}
/* Separate path and name into p and q */
if ((q = strrchr(p, '/')) != NULL && (q == p || q[-1] != ':'))
{
*q++ = '\0'; /* path/name -> path, name */
if (*p == '\0') /* path is just / */
p = strcpy(v, "/.");
}
else if ((q = strrchr(p, ':')) != NULL)
{ /* has device and no or root path */
*q++ = '\0';
p = strcat(strcpy(v, p), ":"); /* copy device as path */
if (*q == '/') /* -> device:/., name */
{
strcat(p, "/");
q++;
}
strcat(p, ".");
}
else if (recurse && (strcmp(p, ".") == 0 || strcmp(p, "..") == 0))
{ /* current or parent directory */
/* I can't understand Mark's code so I am adding a hack here to get
* "zip -r foo ." to work. Allow the dubious "zip -r foo .." but
* reject "zip -rm foo ..".
*/
if (dispose && strcmp(p, "..") == 0)
ziperr(ZE_PARMS, "cannot remove parent directory");
q = "*";
}
else /* no path or device */
{
q = p;
p = strcpy(v, ".");
}
if (recurse && *q == '\0') {
q = "*";
}
/* Search that level for matching names */
if ((d = opendir(p)) == NULL)
{
free((zvoid *)a);
return ZE_MISS;
}
if ((r = strlen(p)) > 1 &&
(strcmp(p + r - 2, ":.") == 0 || strcmp(p + r - 2, "/.") == 0))
*(p + r - 1) = '\0';
f = 0;
while ((e = readd(d)) != NULL) {
if (strcmp(e, ".") && strcmp(e, "..") && MATCH(q, e, 0))
{
f = 1;
if (strcmp(p, ".") == 0) { /* path is . */
r = procname(e, 0); /* name is name */
if (r) {
f = 0;
break;
}
} else
{
if ((n = malloc(strlen(p) + strlen(e) + 2)) == NULL)
{
free((zvoid *)a);
closedir(d);
return ZE_MEM;
}
n = strcpy(n, p);
if (n[r = strlen(n) - 1] != '/' && n[r] != ':')
strcat(n, "/");
r = procname(strcat(n, e), 0); /* name is path/name */
free((zvoid *)n);
if (r) {
f = 0;
break;
}
}
}
}
closedir(d);
/* Done */
free((zvoid *)a);
return f ? ZE_OK : ZE_MISS;
}
int procname(n, caseflag)
char *n; /* name to process */
int caseflag; /* true to force case-sensitive match */
/* Process a name or sh expression to operate on (or exclude). Return
an error code in the ZE_ class. */
{
char *a; /* path and name for recursion */
DIR *d; /* directory stream from opendir() */
char *e; /* pointer to name from readd() */
int m; /* matched flag */
char *p; /* path for recursion */
struct stat s; /* result of stat() */
struct zlist far *z; /* steps through zfiles list */
if (n == NULL) /* volume_label request in freshen|delete mode ?? */
return ZE_OK;
if (strcmp(n, "-") == 0) /* if compressing stdin */
return newname(n, 0, caseflag);
else if (LSSTAT(n, &s)
#if defined(__TURBOC__) || defined(__WATCOMC__)
/* For these 2 compilers, stat() succeeds on wild card names! */
|| isshexp(n)
#endif
)
{
/* Not a file or directory--search for shell expression in zip file */
p = ex2in(n, 0, (int *)NULL); /* shouldn't affect matching chars */
m = 1;
for (z = zfiles; z != NULL; z = z->nxt) {
if (MATCH(p, z->iname, caseflag))
{
z->mark = pcount ? filter(z->zname, caseflag) : 1;
if (verbose)
fprintf(mesg, "zip diagnostic: %scluding %s\n",
z->mark ? "in" : "ex", z->name);
m = 0;
}
}
free((zvoid *)p);
return m ? ZE_MISS : ZE_OK;
}
/* Live name--use if file, recurse if directory */
for (p = n; *p; p++) /* use / consistently */
if (*p == '\\')
*p = '/';
if ((s.st_mode & S_IFDIR) == 0)
{
/* add or remove name of file */
if ((m = newname(n, 0, caseflag)) != ZE_OK)
return m;
} else {
/* Add trailing / to the directory name */
if ((p = malloc(strlen(n)+2)) == NULL)
return ZE_MEM;
if (strcmp(n, ".") == 0 || strcmp(n, "/.") == 0) {
*p = '\0'; /* avoid "./" prefix and do not create zip entry */
} else {
strcpy(p, n);
a = p + strlen(p);
if (a[-1] != '/')
strcpy(a, "/");
if (dirnames && (m = newname(p, 1, caseflag)) != ZE_OK) {
free((zvoid *)p);
return m;
}
}
/* recurse into directory */
if (recurse && (d = opendir(n)) != NULL)
{
while ((e = readd(d)) != NULL) {
if (strcmp(e, ".") && strcmp(e, ".."))
{
if ((a = malloc(strlen(p) + strlen(e) + 1)) == NULL)
{
closedir(d);
free((zvoid *)p);
return ZE_MEM;
}
strcat(strcpy(a, p), e);
if ((m = procname(a, caseflag)) != ZE_OK) /* recurse on name */
{
if (m == ZE_MISS)
zipwarn("name not matched: ", a);
else
ziperr(m, a);
}
free((zvoid *)a);
}
}
closedir(d);
}
free((zvoid *)p);
} /* (s.st_mode & S_IFDIR) == 0) */
return ZE_OK;
}
char *ex2in(x, isdir, pdosflag)
char *x; /* external file name */
int isdir; /* input: x is a directory */
int *pdosflag; /* output: force MSDOS file attributes? */
/* Convert the external file name to a zip file name, returning the malloc'ed
string or NULL if not enough memory. */
{
char *n; /* internal file name (malloc'ed) */
char *t; /* shortened name */
int dosflag;
dosflag = dosify || IsFileSystemFAT(x) || (x == label);
if (!dosify && use_longname_ea && (t = GetLongPathEA(x)) != NULL)
{
x = t;
dosflag = 0;
}
/* Find starting point in name before doing malloc */
/* Strip drive specification */
t = *x && *(x + 1) == ':' ? x + 2 : x;
/* Strip "//host/share/" part of a UNC name */
if ((!strncmp(x,"//",2) || !strncmp(x,"\\\\",2)) &&
(x[2] != '\0' && x[2] != '/' && x[2] != '\\')) {
n = x + 2;
while (*n != '\0' && *n != '/' && *n != '\\')
n++; /* strip host name */
if (*n != '\0') {
n++;
while (*n != '\0' && *n != '/' && *n != '\\')
n++; /* strip `share' name */
}
if (*n != '\0')
t = n + 1;
}
/* Strip leading "/" to convert an absolute path into a relative path */
while (*t == '/' || *t == '\\')
t++;
/* Strip leading "./" as well as drive letter */
while (*t == '.' && (t[1] == '/' || t[1] == '\\'))
t += 2;
/* Make changes, if any, to the copied name (leave original intact) */
for (n = t; *n; n++)
if (*n == '\\')
*n = '/';
if (!pathput)
t = last(t, PATH_END);
/* Malloc space for internal name and copy it */
if ((n = malloc(strlen(t) + 1)) == NULL)
return NULL;
strcpy(n, t);
if (dosify)
msname(n);
/* Returned malloc'ed name */
if (pdosflag)
*pdosflag = dosflag;
return n;
}
char *in2ex(n)
char *n; /* internal file name */
/* Convert the zip file name to an external file name, returning the malloc'ed
string or NULL if not enough memory. */
{
char *x; /* external file name */
if ((x = malloc(strlen(n) + 1 + PAD)) == NULL)
return NULL;
strcpy(x, n);
return x;
}
void stamp(f, d)
char *f; /* name of file to change */
ulg d; /* dos-style time to change it to */
/* Set last updated and accessed time of file f to the DOS time d. */
{
SetFileTime(f, d);
}
ulg filetime(f, a, n, t)
char *f; /* name of file to get info on */
ulg *a; /* return value: file attributes */
long *n; /* return value: file size */
iztimes *t; /* return value: access, modific. and creation times */
/* If file *f does not exist, return 0. Else, return the file's last
modified date and time as an MSDOS date and time. The date and
time is returned in a long with the date most significant to allow
unsigned integer comparison of absolute times. Also, if a is not
a NULL pointer, store the file attributes there, with the high two
bytes being the Unix attributes, and the low byte being a mapping
of that to DOS attributes. If n is not NULL, store the file size
there. If t is not NULL, the file's access, modification and creation
times are stored there as UNIX time_t values.
If f is "-", use standard input as the file. If f is a device, return
a file size of -1 */
{
struct stat s; /* results of stat() */
char *name;
ulg r;
unsigned int len = strlen(f);
int isstdin = !strcmp(f, "-");
if (f == label) {
if (a != NULL)
*a = label_mode;
if (n != NULL)
*n = -2L; /* convention for a label name */
if (t != NULL)
t->atime = t->mtime = t->ctime = label_utim;
return label_time;
}
if ((name = malloc(len + 1)) == NULL) {
ZIPERR(ZE_MEM, "filetime");
}
strcpy(name, f);
if (name[len - 1] == '/')
name[len - 1] = '\0';
/* not all systems allow stat'ing a file with / appended */
if (isstdin) {
/* it is common for some PC based compilers to
fail with fstat() on devices or pipes */
if (fstat(fileno(stdin), &s) != 0) {
s.st_mode = S_IFREG; s.st_size = -1L;
}
time(&s.st_ctime);
s.st_atime = s.st_mtime = s.st_ctime;
} else if (LSSTAT(name, &s) != 0) {
/* Accept about any file kind including directories
* (stored with trailing / with -r option)
*/
free(name);
return 0;
}
if (a != NULL) {
*a = ((ulg)s.st_mode << 16) | (isstdin ? 0L : (ulg)GetFileMode(name));
}
if (n != NULL)
*n = (s.st_mode & S_IFMT) == S_IFREG ? s.st_size : -1L;
#ifdef __WATCOMC__
/* of course, Watcom always has to make an exception */
if (s.st_atime == 312764400)
s.st_atime = s.st_mtime;
if (s.st_ctime == 312764400)
s.st_ctime = s.st_mtime;
#endif
if (t != NULL) {
t->atime = s.st_atime;
t->mtime = s.st_mtime;
t->ctime = s.st_ctime;
}
r = GetFileTime(name);
free(name);
return r;
}
int deletedir(d)
char *d; /* directory to delete */
/* Delete the directory *d if it is empty, do nothing otherwise.
Return the result of rmdir(), delete(), or system().
*/
{
return rmdir(d);
}
#if defined MY_ZCALLOC /* Special zcalloc function for MEMORY16 (MSDOS/OS2) */
#ifdef MSC /* Microsoft C */
zvoid far *zcalloc (unsigned items, unsigned size)
{
return (zvoid far *)halloc((long)items, size);
}
zvoid zcfree (zvoid far *ptr)
{
hfree((void huge *)ptr);
}
#endif /* MSC */
#endif /* MY_ZCALLOC */
#endif /* !UTIL */
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