# endif
#endif
+#ifdef I_LIMITS
+#include <limits.h>
+#endif
+
+#ifndef ARG_MAX
+# ifdef _SC_ARG_MAX
+# define ARG_MAX (sysconf(_SC_ARG_MAX))
+# else
+# ifdef _POSIX_ARG_MAX
+# define ARG_MAX _POSIX_ARG_MAX
+# else
+# ifdef WIN32
+# define ARG_MAX 14500 /* from VC's limits.h */
+# else
+# define ARG_MAX 4096 /* from POSIX, be conservative */
+# endif
+# endif
+# endif
+#endif
+
#define BG_DOLLAR '$'
#define BG_DOT '.'
#define BG_EOS '\0'
static int compare(const void *, const void *);
static int ci_compare(const void *, const void *);
-static void g_Ctoc(const Char *, char *);
+static int g_Ctoc(const Char *, char *, STRLEN);
static int g_lstat(Char *, Stat_t *, glob_t *);
static DIR *g_opendir(Char *, glob_t *);
static Char *g_strchr(Char *, int);
-#ifdef notdef
-static Char *g_strcat(Char *, const Char *);
-#endif
static int g_stat(Char *, Stat_t *, glob_t *);
static int glob0(const Char *, glob_t *);
-static int glob1(Char *, glob_t *);
-static int glob2(Char *, Char *, Char *, glob_t *);
-static int glob3(Char *, Char *, Char *, Char *, glob_t *);
-static int globextend(const Char *, glob_t *);
-static const Char * globtilde(const Char *, Char *, glob_t *);
+static int glob1(Char *, Char *, glob_t *, size_t *);
+static int glob2(Char *, Char *, Char *, Char *, Char *, Char *,
+ glob_t *, size_t *);
+static int glob3(Char *, Char *, Char *, Char *, Char *, Char *,
+ Char *, Char *, glob_t *, size_t *);
+static int globextend(const Char *, glob_t *, size_t *);
+static const Char *
+ globtilde(const Char *, Char *, size_t, glob_t *);
static int globexp1(const Char *, glob_t *);
static int globexp2(const Char *, const Char *, glob_t *, int *);
static int match(Char *, Char *, Char *, int);
{
const U8 *patnext;
int c;
- Char *bufnext, *bufend, patbuf[MAXPATHLEN+1];
+ Char *bufnext, *bufend, patbuf[MAXPATHLEN];
patnext = (U8 *) pattern;
if (!(flags & GLOB_APPEND)) {
pglob->gl_matchc = 0;
bufnext = patbuf;
- bufend = bufnext + MAXPATHLEN;
+ bufend = bufnext + MAXPATHLEN - 1;
#ifdef DOSISH
/* Nasty hack to treat patterns like "C:*" correctly. In this
* case, the * should match any file in the current directory
--patnext;
}
*bufnext++ = c | M_PROTECT;
- }
- else
+ } else
*bufnext++ = c;
- }
- else
- while (bufnext < bufend && (c = *patnext++) != BG_EOS)
- *bufnext++ = c;
+ } else
+ while (bufnext < bufend && (c = *patnext++) != BG_EOS)
+ *bufnext++ = c;
*bufnext = BG_EOS;
if (flags & GLOB_BRACE)
* invoke the standard globbing routine to glob the rest of the magic
* characters
*/
-static int globexp1(const Char *pattern, glob_t *pglob)
+static int
+globexp1(const Char *pattern, glob_t *pglob)
{
const Char* ptr = pattern;
int rv;
* If it succeeds then it invokes globexp1 with the new pattern.
* If it fails then it tries to glob the rest of the pattern and returns.
*/
-static int globexp2(const Char *ptr, const Char *pattern,
- glob_t *pglob, int *rv)
+static int
+globexp2(const Char *ptr, const Char *pattern,
+ glob_t *pglob, int *rv)
{
int i;
Char *lm, *ls;
const Char *pe, *pm, *pl;
- Char patbuf[MAXPATHLEN + 1];
+ Char patbuf[MAXPATHLEN];
/* copy part up to the brace */
for (lm = patbuf, pm = pattern; pm != ptr; *lm++ = *pm++)
- continue;
+ ;
+ *lm = BG_EOS;
ls = lm;
/* Find the balanced brace */
if (*pe == BG_LBRACKET) {
/* Ignore everything between [] */
for (pm = pe++; *pe != BG_RBRACKET && *pe != BG_EOS; pe++)
- continue;
+ ;
if (*pe == BG_EOS) {
/*
* We could not find a matching BG_RBRACKET.
*/
pe = pm;
}
- }
- else if (*pe == BG_LBRACE)
+ } else if (*pe == BG_LBRACE)
i++;
else if (*pe == BG_RBRACE) {
if (i == 0)
return 0;
}
- for (i = 0, pl = pm = ptr; pm <= pe; pm++)
+ for (i = 0, pl = pm = ptr; pm <= pe; pm++) {
switch (*pm) {
case BG_LBRACKET:
/* Ignore everything between [] */
for (pl = pm++; *pm != BG_RBRACKET && *pm != BG_EOS; pm++)
- continue;
+ ;
if (*pm == BG_EOS) {
/*
* We could not find a matching BG_RBRACKET.
case BG_RBRACE:
if (i) {
- i--;
- break;
+ i--;
+ break;
}
/* FALLTHROUGH */
case BG_COMMA:
else {
/* Append the current string */
for (lm = ls; (pl < pm); *lm++ = *pl++)
- continue;
+ ;
+
/*
* Append the rest of the pattern after the
* closing brace
*/
- for (pl = pe + 1; (*lm++ = *pl++) != BG_EOS;)
- continue;
+ for (pl = pe + 1; (*lm++ = *pl++) != BG_EOS; )
+ ;
/* Expand the current pattern */
#ifdef GLOB_DEBUG
default:
break;
}
+ }
*rv = 0;
return 0;
}
* expand tilde from the passwd file.
*/
static const Char *
-globtilde(const Char *pattern, Char *patbuf, glob_t *pglob)
+globtilde(const Char *pattern, Char *patbuf, size_t limit, glob_t *pglob)
{
struct passwd *pwd;
char *h;
/* Copy up to the end of the string or / */
for (p = pattern + 1, h = (char *) patbuf; *p && *p != BG_SLASH;
*h++ = *p++)
- continue;
+ ;
*h = BG_EOS;
+#if 0
+ if (h == (char *)eb)
+ return what;
+#endif
+
if (((char *) patbuf)[0] == BG_EOS) {
/*
* handle a plain ~ or ~/ by expanding $HOME
return pattern;
#endif
}
- }
- else {
+ } else {
/*
* Expand a ~user
*/
/* Copy the home directory */
for (b = patbuf; *h; *b++ = *h++)
- continue;
+ ;
/* Append the rest of the pattern */
while ((*b++ = *p++) != BG_EOS)
- continue;
+ ;
return patbuf;
}
{
const Char *qpat, *qpatnext;
int c, err, oldflags, oldpathc;
- Char *bufnext, patbuf[MAXPATHLEN+1];
+ Char *bufnext, patbuf[MAXPATHLEN];
+ size_t limit = 0;
#ifdef MACOS_TRADITIONAL
if ( (*pattern == BG_TILDE) && (pglob->gl_flags & GLOB_TILDE) ) {
}
#endif
- qpat = globtilde(pattern, patbuf, pglob);
+ qpat = globtilde(pattern, patbuf, MAXPATHLEN, pglob);
qpatnext = qpat;
oldflags = pglob->gl_flags;
oldpathc = pglob->gl_pathc;
* to avoid exponential behavior
*/
if (bufnext == patbuf || bufnext[-1] != M_ALL)
- *bufnext++ = M_ALL;
+ *bufnext++ = M_ALL;
break;
default:
*bufnext++ = CHAR(c);
qprintf("glob0:", patbuf);
#endif /* GLOB_DEBUG */
- if ((err = glob1(patbuf, pglob)) != 0) {
+ if ((err = glob1(patbuf, patbuf+MAXPATHLEN-1, pglob, &limit)) != 0) {
pglob->gl_flags = oldflags;
return(err);
}
printf("calling globextend from glob0\n");
#endif /* GLOB_DEBUG */
pglob->gl_flags = oldflags;
- return(globextend(qpat, pglob));
+ return(globextend(qpat, pglob, &limit));
}
else if (!(pglob->gl_flags & GLOB_NOSORT))
qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc,
static int
ci_compare(const void *p, const void *q)
{
- const char *pp = *(const char **)p;
- const char *qq = *(const char **)q;
- int ci;
- while (*pp && *qq) {
- if (tolower(*pp) != tolower(*qq))
- break;
- ++pp;
- ++qq;
- }
- ci = tolower(*pp) - tolower(*qq);
- if (ci == 0)
- return compare(p, q);
- return ci;
+ const char *pp = *(const char **)p;
+ const char *qq = *(const char **)q;
+ int ci;
+ while (*pp && *qq) {
+ if (tolower(*pp) != tolower(*qq))
+ break;
+ ++pp;
+ ++qq;
+ }
+ ci = tolower(*pp) - tolower(*qq);
+ if (ci == 0)
+ return compare(p, q);
+ return ci;
}
static int
}
static int
-glob1(Char *pattern, glob_t *pglob)
+glob1(Char *pattern, Char *pattern_last, glob_t *pglob, size_t *limitp)
{
- Char pathbuf[MAXPATHLEN+1];
+ Char pathbuf[MAXPATHLEN];
/* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */
if (*pattern == BG_EOS)
return(0);
- return(glob2(pathbuf, pathbuf, pattern, pglob));
+ return(glob2(pathbuf, pathbuf+MAXPATHLEN-1,
+ pathbuf, pathbuf+MAXPATHLEN-1,
+ pattern, pattern_last, pglob, limitp));
}
/*
* meta characters.
*/
static int
-glob2(Char *pathbuf, Char *pathend, Char *pattern, glob_t *pglob)
+glob2(Char *pathbuf, Char *pathbuf_last, Char *pathend, Char *pathend_last,
+ Char *pattern, Char *pattern_last, glob_t *pglob, size_t *limitp)
{
Stat_t sb;
Char *p, *q;
#ifdef DOSISH
&& pathend[-1] != BG_SEP2
#endif
- ) && (S_ISDIR(sb.st_mode)
- || (S_ISLNK(sb.st_mode) &&
+ ) && (S_ISDIR(sb.st_mode) ||
+ (S_ISLNK(sb.st_mode) &&
(g_stat(pathbuf, &sb, pglob) == 0) &&
S_ISDIR(sb.st_mode)))) {
+ if (pathend+1 > pathend_last)
+ return (1);
*pathend++ = BG_SEP;
*pathend = BG_EOS;
}
#ifdef GLOB_DEBUG
printf("calling globextend from glob2\n");
#endif /* GLOB_DEBUG */
- return(globextend(pathbuf, pglob));
+ return(globextend(pathbuf, pglob, limitp));
}
/* Find end of next segment, copy tentatively to pathend. */
) {
if (ismeta(*p))
anymeta = 1;
+ if (q+1 > pathend_last)
+ return (1);
*q++ = *p++;
}
#ifdef DOSISH
|| *pattern == BG_SEP2
#endif
- )
+ ) {
+ if (pathend+1 > pathend_last)
+ return (1);
*pathend++ = *pattern++;
- } else /* Need expansion, recurse. */
- return(glob3(pathbuf, pathend, pattern, p, pglob));
+ }
+ } else
+ /* Need expansion, recurse. */
+ return(glob3(pathbuf, pathbuf_last, pathend,
+ pathend_last, pattern, pattern_last,
+ p, pattern_last, pglob, limitp));
}
/* NOTREACHED */
}
static int
-glob3(Char *pathbuf, Char *pathend, Char *pattern,
- Char *restpattern, glob_t *pglob)
+glob3(Char *pathbuf, Char *pathbuf_last, Char *pathend, Char *pathend_last,
+ Char *pattern, Char *pattern_last,
+ Char *restpattern, Char *restpattern_last, glob_t *pglob, size_t *limitp)
{
register Direntry_t *dp;
DIR *dirp;
*/
Direntry_t *(*readdirfunc)(DIR*);
+ if (pathend > pathend_last)
+ return (1);
*pathend = BG_EOS;
errno = 0;
if ((dirp = g_opendir(pathbuf, pglob)) == NULL) {
/* TODO: don't call for ENOENT or ENOTDIR? */
if (pglob->gl_errfunc) {
- g_Ctoc(pathbuf, buf);
+ if (g_Ctoc(pathbuf, buf, sizeof(buf)))
+ return (GLOB_ABEND);
if (pglob->gl_errfunc(buf, errno) ||
(pglob->gl_flags & GLOB_ERR))
return (GLOB_ABEND);
/* Search directory for matching names. */
if (pglob->gl_flags & GLOB_ALTDIRFUNC)
- readdirfunc = (Direntry_t *(*)(DIR *))pglob->gl_readdir;
+ readdirfunc = (Direntry_t *(*)(DIR *))pglob->gl_readdir;
else
readdirfunc = my_readdir;
while ((dp = (*readdirfunc)(dirp))) {
/* Initial BG_DOT must be matched literally. */
if (dp->d_name[0] == BG_DOT && *pattern != BG_DOT)
continue;
- for (sc = (U8 *) dp->d_name, dc = pathend;
- (*dc++ = *sc++) != BG_EOS;)
- continue;
+ dc = pathend;
+ sc = (U8 *) dp->d_name;
+ while (dc < pathend_last && (*dc++ = *sc++) != BG_EOS)
+ ;
+ if (dc >= pathend_last) {
+ *dc = BG_EOS;
+ err = 1;
+ break;
+ }
+
if (!match(pathend, pattern, restpattern, nocase)) {
*pathend = BG_EOS;
continue;
}
- err = glob2(pathbuf, --dc, restpattern, pglob);
+ err = glob2(pathbuf, pathbuf_last, --dc, pathend_last,
+ restpattern, restpattern_last, pglob, limitp);
if (err)
break;
}
* gl_pathv points to (gl_offs + gl_pathc + 1) items.
*/
static int
-globextend(const Char *path, glob_t *pglob)
+globextend(const Char *path, glob_t *pglob, size_t *limitp)
{
register char **pathv;
register int i;
+ STRLEN newsize, len;
char *copy;
const Char *p;
printf("\n");
#endif /* GLOB_DEBUG */
+ newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs);
if (pglob->gl_pathv)
- pathv = Renew(pglob->gl_pathv,
- (2 + pglob->gl_pathc + pglob->gl_offs),char*);
+ pathv = Renew(pglob->gl_pathv,newsize,char*);
else
- New(0,pathv,(2 + pglob->gl_pathc + pglob->gl_offs),char*);
- if (pathv == NULL)
+ New(0,pathv,newsize,char*);
+ if (pathv == NULL) {
+ if (pglob->gl_pathv) {
+ Safefree(pglob->gl_pathv);
+ pglob->gl_pathv = NULL;
+ }
return(GLOB_NOSPACE);
+ }
if (pglob->gl_pathv == NULL && pglob->gl_offs > 0) {
/* first time around -- clear initial gl_offs items */
pglob->gl_pathv = pathv;
for (p = path; *p++;)
- continue;
+ ;
+ len = (STRLEN)(p - path);
New(0, copy, p-path, char);
if (copy != NULL) {
- g_Ctoc(path, copy);
+ if (g_Ctoc(path, copy, len)) {
+ Safefree(copy);
+ return(GLOB_NOSPACE);
+ }
pathv[pglob->gl_offs + pglob->gl_pathc++] = copy;
}
pathv[pglob->gl_offs + pglob->gl_pathc] = NULL;
+
+ if ((pglob->gl_flags & GLOB_LIMIT) &&
+ newsize + *limitp >= ARG_MAX) {
+ errno = 0;
+ return(GLOB_NOSPACE);
+ }
return(copy == NULL ? GLOB_NOSPACE : 0);
}
do
if (match(name, pat, patend, nocase))
return(1);
- while (*name++ != BG_EOS);
+ while (*name++ != BG_EOS)
+ ;
return(0);
case M_ONE:
if (*name++ == BG_EOS)
if (*pp)
Safefree(*pp);
Safefree(pglob->gl_pathv);
+ pglob->gl_pathv = NULL;
}
}
strcpy(buf, ".");
#endif
} else {
- g_Ctoc(str, buf);
+ if (g_Ctoc(str, buf, sizeof(buf)))
+ return(NULL);
}
if (pglob->gl_flags & GLOB_ALTDIRFUNC)
{
char buf[MAXPATHLEN];
- g_Ctoc(fn, buf);
+ if (g_Ctoc(fn, buf, sizeof(buf)))
+ return(-1);
if (pglob->gl_flags & GLOB_ALTDIRFUNC)
return((*pglob->gl_lstat)(buf, sb));
#ifdef HAS_LSTAT
{
char buf[MAXPATHLEN];
- g_Ctoc(fn, buf);
+ if (g_Ctoc(fn, buf, sizeof(buf)))
+ return(-1);
if (pglob->gl_flags & GLOB_ALTDIRFUNC)
return((*pglob->gl_stat)(buf, sb));
return(PerlLIO_stat(buf, sb));
return (NULL);
}
-#ifdef notdef
-static Char *
-g_strcat(Char *dst, const Char *src)
-{
- Char *sdst = dst;
-
- while (*dst++)
- continue;
- --dst;
- while((*dst++ = *src++) != BG_EOS)
- continue;
-
- return (sdst);
-}
-#endif
-
-static void
-g_Ctoc(register const Char *str, char *buf)
+static int
+g_Ctoc(register const Char *str, char *buf, STRLEN len)
{
- register char *dc;
-
- for (dc = buf; (*dc++ = *str++) != BG_EOS;)
- continue;
+ while (len--) {
+ if ((*buf++ = *str++) == BG_EOS)
+ return (0);
+ }
+ return (1);
}
#ifdef GLOB_DEBUG
projects / p5sagit/p5-mst-13.2.git / blobdiff