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authorBen Lindstrom <mouring@eviladmin.org>2001-03-19 18:58:13 +0000
committerBen Lindstrom <mouring@eviladmin.org>2001-03-19 18:58:13 +0000
commita77d641cea5fc64707bf4a27a7bff8bbb8450c69 (patch)
treebed5f0092586c27e7fe77dc6f9b9572be03e7489 /openbsd-compat
parent55fb9a9064baf6631ab33287b7c750b664b80ca4 (diff)
- (bal) glob.c update to added GLOB_LIMITS.
Diffstat (limited to 'openbsd-compat')
-rw-r--r--openbsd-compat/glob.c60
1 files changed, 38 insertions, 22 deletions
diff --git a/openbsd-compat/glob.c b/openbsd-compat/glob.c
index e2fd7c27..b42cedb7 100644
--- a/openbsd-compat/glob.c
+++ b/openbsd-compat/glob.c
@@ -44,7 +44,7 @@
#if 0
static char sccsid[] = "@(#)glob.c 8.3 (Berkeley) 10/13/93";
#else
-static char rcsid[] = "$OpenBSD: glob.c,v 1.8 1998/08/14 21:39:30 deraadt Exp $";
+static char rcsid[] = "$OpenBSD: glob.c,v 1.9 2001/03/18 17:18:58 deraadt Exp $";
#endif
#endif /* LIBC_SCCS and not lint */
@@ -134,11 +134,13 @@ static Char *g_strcat __P((Char *, const Char *));
#endif
static int g_stat __P((Char *, struct stat *, glob_t *));
static int glob0 __P((const Char *, glob_t *));
-static int glob1 __P((Char *, glob_t *));
-static int glob2 __P((Char *, Char *, Char *, glob_t *));
-static int glob3 __P((Char *, Char *, Char *, Char *, glob_t *));
-static int globextend __P((const Char *, glob_t *));
-static const Char * globtilde __P((const Char *, Char *, size_t, glob_t *));
+static int glob1 __P((Char *, glob_t *, size_t *));
+static int glob2 __P((Char *, Char *, Char *, glob_t *, size_t *));
+static int glob3 __P((Char *, Char *, Char *, Char *, glob_t *,
+ size_t *));
+static int globextend __P((const Char *, glob_t *, size_t *));
+static const Char *
+ globtilde __P((const Char *, Char *, size_t, glob_t *));
static int globexp1 __P((const Char *, glob_t *));
static int globexp2 __P((const Char *, const Char *, glob_t *, int *));
static int match __P((Char *, Char *, Char *));
@@ -403,6 +405,7 @@ glob0(pattern, pglob)
const Char *qpatnext;
int c, err, oldpathc;
Char *bufnext, patbuf[MAXPATHLEN+1];
+ size_t limit = 0;
qpatnext = globtilde(pattern, patbuf, sizeof(patbuf) / sizeof(Char),
pglob);
@@ -461,7 +464,7 @@ glob0(pattern, pglob)
qprintf("glob0:", patbuf);
#endif
- if ((err = glob1(patbuf, pglob)) != 0)
+ if ((err = glob1(patbuf, pglob, &limit)) != 0)
return(err);
/*
@@ -474,7 +477,7 @@ glob0(pattern, pglob)
if ((pglob->gl_flags & GLOB_NOCHECK) ||
((pglob->gl_flags & GLOB_NOMAGIC) &&
!(pglob->gl_flags & GLOB_MAGCHAR)))
- return(globextend(pattern, pglob));
+ return(globextend(pattern, pglob, &limit));
else
return(GLOB_NOMATCH);
}
@@ -492,16 +495,17 @@ compare(p, q)
}
static int
-glob1(pattern, pglob)
+glob1(pattern, pglob, limitp)
Char *pattern;
glob_t *pglob;
+ size_t *limitp;
{
Char pathbuf[MAXPATHLEN+1];
/* A null pathname is invalid -- POSIX 1003.1 sect. 2.4. */
if (*pattern == EOS)
return(0);
- return(glob2(pathbuf, pathbuf, pattern, pglob));
+ return(glob2(pathbuf, pathbuf, pattern, pglob, limitp));
}
/*
@@ -510,9 +514,10 @@ glob1(pattern, pglob)
* meta characters.
*/
static int
-glob2(pathbuf, pathend, pattern, pglob)
+glob2(pathbuf, pathend, pattern, pglob, limitp)
Char *pathbuf, *pathend, *pattern;
glob_t *pglob;
+ size_t *limitp;
{
struct stat sb;
Char *p, *q;
@@ -537,7 +542,7 @@ glob2(pathbuf, pathend, pattern, pglob)
*pathend = EOS;
}
++pglob->gl_matchc;
- return(globextend(pathbuf, pglob));
+ return(globextend(pathbuf, pglob, limitp));
}
/* Find end of next segment, copy tentatively to pathend. */
@@ -555,15 +560,17 @@ glob2(pathbuf, pathend, pattern, pglob)
while (*pattern == SEP)
*pathend++ = *pattern++;
} else /* Need expansion, recurse. */
- return(glob3(pathbuf, pathend, pattern, p, pglob));
+ return(glob3(pathbuf, pathend, pattern, p, pglob,
+ limitp));
}
/* NOTREACHED */
}
static int
-glob3(pathbuf, pathend, pattern, restpattern, pglob)
+glob3(pathbuf, pathend, pattern, restpattern, pglob, limitp)
Char *pathbuf, *pathend, *pattern, *restpattern;
glob_t *pglob;
+ size_t *limitp;
{
register struct dirent *dp;
DIR *dirp;
@@ -613,7 +620,7 @@ glob3(pathbuf, pathend, pattern, restpattern, pglob)
*pathend = EOS;
continue;
}
- err = glob2(pathbuf, --dc, restpattern, pglob);
+ err = glob2(pathbuf, --dc, restpattern, pglob, limitp);
if (err)
break;
}
@@ -641,20 +648,20 @@ glob3(pathbuf, pathend, pattern, restpattern, pglob)
* gl_pathv points to (gl_offs + gl_pathc + 1) items.
*/
static int
-globextend(path, pglob)
+globextend(path, pglob, limitp)
const Char *path;
glob_t *pglob;
+ size_t *limitp;
{
register char **pathv;
register int i;
- u_int newsize;
+ u_int newsize, len;
char *copy;
const Char *p;
newsize = sizeof(*pathv) * (2 + pglob->gl_pathc + pglob->gl_offs);
- pathv = pglob->gl_pathv ?
- realloc((char *)pglob->gl_pathv, newsize) :
- malloc(newsize);
+ pathv = pglob->gl_pathv ? realloc((char *)pglob->gl_pathv, newsize) :
+ malloc(newsize);
if (pathv == NULL) {
if (pglob->gl_pathv)
free(pglob->gl_pathv);
@@ -671,11 +678,20 @@ globextend(path, pglob)
for (p = path; *p++;)
continue;
- if ((copy = malloc(p - path)) != NULL) {
+ len = (size_t)(p - path);
+ *limitp += len;
+ if ((copy = malloc(len)) != NULL) {
g_Ctoc(path, copy);
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);
}
@@ -818,7 +834,7 @@ g_strcat(dst, src)
continue;
--dst;
while((*dst++ = *src++) != EOS)
- continue;
+ continue;
return (sdst);
}