char *
base_name (char const *name)
{
char const *base = name + FILESYSTEM_PREFIX_LEN (name);
char const *p;
for (p = base; *p; p++)
{
if (ISSLASH (*p))
{
/* Treat multiple adjacent slashes like a single slash. */
do p++;
while (ISSLASH (*p));
/* If the file name ends in slash, use the trailing slash as
the basename if no non-slashes have been found. */
if (! *p)
{
if (ISSLASH (*base))
base = p - 1;
break;
}
/* *P is a non-slash preceded by a slash. */
base = p;
}
}
return (char *) base;
}
char *base_name(char const *name) {
char const *base = name + FILESYSTEM_PREFIX_LEN(name);
char const *p;
// kill drive letter, if present (on Win32) /* GGRIII */
if((p = strchr(base, ':'))) {
// drive letter is present
base = p + 1;
}
for(p = base; *p; p++) {
if(ISSLASH(*p)) {
/* Treat multiple adjacent slashes like a single slash. */
do
p++;
while (ISSLASH(*p));
/* If the file name ends in slash, use the trailing slash as
the basename if no non-slashes have been found. */
if(!*p) {
if(ISSLASH(*base))
base = p - 1;
break;
}
/* *P is a non-slash preceded by a slash. */
base = p;
}
}
return (char *)base;
}
/* Concatenate a directory pathname, a relative pathname and an optional
suffix. The directory may end with the directory separator. The second
argument may not start with the directory separator (it is relative).
Return a freshly allocated pathname. */
char *
concatenated_pathname (const char *directory, const char *filename,
const char *suffix)
{
char *result;
char *p;
if (strcmp (directory, ".") == 0)
{
/* No need to prepend the directory. */
result = (char *) xmalloc (strlen (filename)
+ (suffix != NULL ? strlen (suffix) : 0)
+ 1);
p = result;
}
else
{
size_t directory_len = strlen (directory);
int need_slash =
(directory_len > FILESYSTEM_PREFIX_LEN (directory)
&& !ISSLASH (directory[directory_len - 1]));
result = (char *) xmalloc (directory_len + need_slash
+ strlen (filename)
+ (suffix != NULL ? strlen (suffix) : 0)
+ 1);
memcpy (result, directory, directory_len);
p = result + directory_len;
if (need_slash)
*p++ = '/';
}
p = stpcpy (p, filename);
if (suffix != NULL)
stpcpy (p, suffix);
return result;
}
char *
path_concat (const char *dir, const char *base, char **base_in_result)
{
char *p;
char *p_concat;
size_t baselen;
size_t dirlen;
if (!dir)
{
p_concat = strdup (base);
if (base_in_result)
*base_in_result = p_concat;
return p_concat;
}
/* DIR is not empty. */
baselen = base_len (base);
dirlen = strlen (dir);
p_concat = malloc (dirlen + baselen + 2);
if (!p_concat)
return 0;
p = mempcpy (p_concat, dir, dirlen);
if (FILESYSTEM_PREFIX_LEN (dir) < dirlen)
{
if (ISSLASH (*(p - 1)) && ISSLASH (*base))
--p;
else if (!ISSLASH (*(p - 1)) && !ISSLASH (*base))
*p++ = DIRECTORY_SEPARATOR;
}
if (base_in_result)
*base_in_result = p;
memcpy (p, base, baselen);
p[baselen] = '\0';
return p_concat;
}
char *
base_name (char const *name)
{
char const *base = name += FILESYSTEM_PREFIX_LEN (name);
int all_slashes = 1;
char const *p;
for (p = name; *p; p++)
{
if (ISSLASH (*p))
base = p + 1;
else
all_slashes = 0;
}
/* If NAME is all slashes, arrange to return `/'. */
if (*base == '\0' && ISSLASH (*name) && all_slashes)
--base;
return (char *) base;
}
/* Strip directory and suffix from filenames */
char * ft_basename (char const *fpath)
{
char const *base = fpath += FILESYSTEM_PREFIX_LEN (fpath);
int all_slashes = 1;
char const *p;
for (p = fpath; *p; p++) {
if (ISSLASH (*p)) {
base = p + 1;
} else {
all_slashes = 0;
}
}
/* If NAME is all slashes, arrange to return `/'. */
if (*base == '\0' && ISSLASH (*fpath) && all_slashes) {
--base;
}
return (char *) base;
}
/* Replace '/' with '\0' in FILENAME if it marks a place that
needs testing for the existence of directory. Return the address
of the last location replaced, or 0 if none were replaced. */
static char *
replace_slashes (char *filename)
{
char *f;
char *last_location_replaced = 0;
char const *component_start;
for (f = filename + FILESYSTEM_PREFIX_LEN (filename); ISSLASH (*f); f++)
continue;
component_start = f;
for (; *f; f++)
if (ISSLASH (*f))
{
char *slash = f;
/* Treat multiple slashes as if they were one slash. */
while (ISSLASH (f[1]))
f++;
/* Ignore slashes at the end of the path. */
if (! f[1])
break;
/* "." and ".." need not be tested. */
if (! (slash - component_start <= 2
&& component_start[0] == '.' && slash[-1] == '.'))
{
*slash = '\0';
last_location_replaced = slash;
}
component_start = f + 1;
}
return last_location_replaced;
}
char *basename(char const *name)
{
char const *base = name += FILESYSTEM_PREFIX_LEN(name);
int all_slashes = 1;
char const *p;
for (p = name; *p; p++)
{
if (ISSLASH(*p))
base = p + 1;
else
all_slashes = 0;
}
/* If NAME is all slashes, arrange to return `/'. */
if (*base == '\0' && ISSLASH(*name) && all_slashes)
--base;
/* Make sure the last byte is not a slash. */
//assert(all_slashes || !ISSLASH(*(p - 1)));
return (char *)base;
}
void
move_file (char const *from, int volatile *from_needs_removal,
char *to, mode_t mode, int backup)
{
struct stat to_st;
int to_errno = ! backup ? -1 : stat (to, &to_st) == 0 ? 0 : errno;
if (backup)
{
int try_makedirs_errno = 0;
char *bakname;
if (origprae || origbase)
{
char const *p = origprae ? origprae : "";
char const *b = origbase ? origbase : "";
char const *o = base_name (to);
size_t plen = strlen (p);
size_t tlen = o - to;
size_t blen = strlen (b);
size_t osize = strlen (o) + 1;
bakname = xmalloc (plen + tlen + blen + osize);
memcpy (bakname, p, plen);
memcpy (bakname + plen, to, tlen);
memcpy (bakname + plen + tlen, b, blen);
memcpy (bakname + plen + tlen + blen, o, osize);
for (p += FILESYSTEM_PREFIX_LEN (p); *p; p++)
if (ISSLASH (*p))
{
try_makedirs_errno = ENOENT;
break;
}
}
else
{
bakname = find_backup_file_name (to, backup_type);
if (!bakname)
memory_fatal ();
}
if (to_errno)
{
int fd;
if (debug & 4)
say ("Creating empty unreadable file %s\n", quotearg (bakname));
try_makedirs_errno = ENOENT;
unlink (bakname);
while ((fd = creat (bakname, 0)) < 0)
{
if (errno != try_makedirs_errno)
pfatal ("Can't create file %s", quotearg (bakname));
makedirs (bakname);
try_makedirs_errno = 0;
}
if (close (fd) != 0)
pfatal ("Can't close file %s", quotearg (bakname));
}
else
{
if (debug & 4)
say ("Renaming file %s to %s\n",
quotearg_n (0, to), quotearg_n (1, bakname));
while (rename (to, bakname) != 0)
{
if (errno != try_makedirs_errno)
pfatal ("Can't rename file %s to %s",
quotearg_n (0, to), quotearg_n (1, bakname));
makedirs (bakname);
try_makedirs_errno = 0;
}
}
free (bakname);
}
if (from)
{
if (debug & 4)
say ("Renaming file %s to %s\n",
quotearg_n (0, from), quotearg_n (1, to));
if (rename (from, to) == 0)
*from_needs_removal = 0;
else
{
int to_dir_known_to_exist = 0;
if (errno == ENOENT
&& (to_errno == -1 || to_errno == ENOENT))
{
makedirs (to);
to_dir_known_to_exist = 1;
if (rename (from, to) == 0)
{
*from_needs_removal = 0;
return;
}
}
if (errno == EXDEV)
{
if (! backup)
{
if (unlink (to) == 0)
to_dir_known_to_exist = 1;
else if (errno != ENOENT)
pfatal ("Can't remove file %s", quotearg (to));
}
if (! to_dir_known_to_exist)
makedirs (to);
copy_file (from, to, 0, mode);
return;
}
pfatal ("Can't rename file %s to %s",
quotearg_n (0, from), quotearg_n (1, to));
}
}
else if (! backup)
{
if (debug & 4)
say ("Removing file %s\n", quotearg (to));
if (unlink (to) != 0)
pfatal ("Can't remove file %s", quotearg (to));
}
}
static
#endif
const char *
compute_curr_prefix (const char *orig_installprefix,
const char *orig_installdir,
const char *curr_pathname)
{
const char *curr_installdir;
const char *rel_installdir;
if (curr_pathname == NULL)
return NULL;
if (strncmp (orig_installprefix, orig_installdir, strlen (orig_installprefix))
!= 0)
return NULL;
rel_installdir = orig_installdir + strlen (orig_installprefix);
{
const char *p_base = curr_pathname + FILESYSTEM_PREFIX_LEN (curr_pathname);
const char *p = curr_pathname + strlen (curr_pathname);
char *q;
while (p > p_base)
{
p--;
if (ISSLASH (*p))
break;
}
q = (char *) xmalloc (p - curr_pathname + 1);
#ifdef NO_XMALLOC
if (q == NULL)
return NULL;
#endif
memcpy (q, curr_pathname, p - curr_pathname);
q[p - curr_pathname] = '\0';
curr_installdir = q;
}
{
const char *rp = rel_installdir + strlen (rel_installdir);
const char *cp = curr_installdir + strlen (curr_installdir);
const char *cp_base =
curr_installdir + FILESYSTEM_PREFIX_LEN (curr_installdir);
while (rp > rel_installdir && cp > cp_base)
{
bool same = false;
const char *rpi = rp;
const char *cpi = cp;
while (rpi > rel_installdir && cpi > cp_base)
{
rpi--;
cpi--;
if (ISSLASH (*rpi) || ISSLASH (*cpi))
{
if (ISSLASH (*rpi) && ISSLASH (*cpi))
same = true;
break;
}
#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
if ((*rpi >= 'a' && *rpi <= 'z' ? *rpi - 'a' + 'A' : *rpi)
!= (*cpi >= 'a' && *cpi <= 'z' ? *cpi - 'a' + 'A' : *cpi))
break;
#else
if (*rpi != *cpi)
break;
#endif
}
if (!same)
break;
rp = rpi;
cp = cpi;
}
if (rp > rel_installdir)
return NULL;
{
size_t curr_prefix_len = cp - curr_installdir;
char *curr_prefix;
curr_prefix = (char *) xmalloc (curr_prefix_len + 1);
#ifdef NO_XMALLOC
if (curr_prefix == NULL)
return NULL;
#endif
memcpy (curr_prefix, curr_installdir, curr_prefix_len);
curr_prefix[curr_prefix_len] = '\0';
return curr_prefix;
}
}
}
static
#endif
const char *
compute_curr_prefix (const char *orig_installprefix,
const char *orig_installdir,
const char *curr_pathname)
{
const char *curr_installdir;
const char *rel_installdir;
if (curr_pathname == NULL)
return NULL;
/* Determine the relative installation directory, relative to the prefix.
This is simply the difference between orig_installprefix and
orig_installdir. */
if (strncmp (orig_installprefix, orig_installdir, strlen (orig_installprefix))
!= 0)
/* Shouldn't happen - nothing should be installed outside $(prefix). */
return NULL;
rel_installdir = orig_installdir + strlen (orig_installprefix);
/* Determine the current installation directory. */
{
const char *p_base = curr_pathname + FILESYSTEM_PREFIX_LEN (curr_pathname);
const char *p = curr_pathname + strlen (curr_pathname);
char *q;
while (p > p_base)
{
p--;
if (ISSLASH (*p))
break;
}
q = (char *) xmalloc (p - curr_pathname + 1);
#ifdef NO_XMALLOC
if (q == NULL)
return NULL;
#endif
memcpy (q, curr_pathname, p - curr_pathname);
q[p - curr_pathname] = '\0';
curr_installdir = q;
}
/* Compute the current installation prefix by removing the trailing
rel_installdir from it. */
{
const char *rp = rel_installdir + strlen (rel_installdir);
const char *cp = curr_installdir + strlen (curr_installdir);
const char *cp_base =
curr_installdir + FILESYSTEM_PREFIX_LEN (curr_installdir);
while (rp > rel_installdir && cp > cp_base)
{
bool same = false;
const char *rpi = rp;
const char *cpi = cp;
while (rpi > rel_installdir && cpi > cp_base)
{
rpi--;
cpi--;
if (ISSLASH (*rpi) || ISSLASH (*cpi))
{
if (ISSLASH (*rpi) && ISSLASH (*cpi))
same = true;
break;
}
#if defined _WIN32 || defined __WIN32__ || defined __EMX__ || defined __DJGPP__
/* Win32, OS/2, DOS - case insignificant filesystem */
if ((*rpi >= 'a' && *rpi <= 'z' ? *rpi - 'a' + 'A' : *rpi)
!= (*cpi >= 'a' && *cpi <= 'z' ? *cpi - 'a' + 'A' : *cpi))
break;
#else
if (*rpi != *cpi)
break;
#endif
}
if (!same)
break;
/* The last pathname component was the same. opi and cpi now point
to the slash before it. */
rp = rpi;
cp = cpi;
}
if (rp > rel_installdir)
/* Unexpected: The curr_installdir does not end with rel_installdir. */
return NULL;
{
size_t curr_prefix_len = cp - curr_installdir;
char *curr_prefix;
curr_prefix = (char *) xmalloc (curr_prefix_len + 1);
#ifdef NO_XMALLOC
if (curr_prefix == NULL)
return NULL;
#endif
memcpy (curr_prefix, curr_installdir, curr_prefix_len);
curr_prefix[curr_prefix_len] = '\0';
return curr_prefix;
}
}
}
