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* glob.c: (glob0): New local variable limit. Use in calls to glob1

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and globextend.
	(glob1): Add `limit' parameter.
	(glob2): Ditto.
	(glob3): Ditto.
	(globextend): Ditto. Implement GLOB_LIMIT handling.
	* include/glob.h (GLOB_LIMIT): New define.
	* include/cygwin/version.h: Bump API minor number.
This commit is contained in:
Corinna Vinschen
2005-06-18 19:04:25 +00:00
parent dae4a4c93c
commit fa2d9fc528
4 changed files with 48 additions and 17 deletions
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50
winsup/cygwin/glob.c
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@@ -83,6 +83,10 @@
#include "perprocess.h"
#include "cygwin/version.h"
#ifndef ARG_MAX
#define ARG_MAX 32000 /* See CreateProcess */
#endif
#ifdef __weak_alias
#ifdef __LIBC12_SOURCE__
__weak_alias(glob,_glob);
@@ -160,10 +164,10 @@ 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 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 *, glob_t *));
static int globexp1 __P((const Char *, glob_t *));
static int globexp2 __P((const Char *, const Char *, glob_t *, int *));
@@ -428,6 +432,7 @@ glob0(pattern, pglob)
const Char *qpatnext;
int c, err, oldpathc;
Char *bufnext, patbuf[MAXPATHLEN+1];
size_t limit = 0;
qpatnext = globtilde(pattern, patbuf, pglob);
oldpathc = pglob->gl_pathc;
@@ -485,7 +490,7 @@ glob0(pattern, pglob)
qprintf("glob0:", patbuf);
#endif
if ((err = glob1(patbuf, pglob)) != 0)
if ((err = glob1(patbuf, pglob, &limit)) != 0)
return(err);
/*
@@ -498,7 +503,7 @@ glob0(pattern, pglob)
((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 if (!(pglob->gl_flags & GLOB_NOSORT))
qsort(pglob->gl_pathv + pglob->gl_offs + oldpathc,
pglob->gl_pathc - oldpathc, sizeof(char *), compare);
@@ -513,16 +518,17 @@ compare(p, q)
}
static int
glob1(pattern, pglob)
glob1(pattern, pglob, limit)
Char *pattern;
glob_t *pglob;
size_t *limit;
{
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, limit));
}
/*
@@ -531,9 +537,10 @@ glob1(pattern, pglob)
* meta characters.
*/
static int
glob2(pathbuf, pathend, pattern, pglob)
glob2(pathbuf, pathend, pattern, pglob, limit)
Char *pathbuf, *pathend, *pattern;
glob_t *pglob;
size_t *limit;
{
struct STAT sb;
Char *p, *q;
@@ -558,7 +565,7 @@ glob2(pathbuf, pathend, pattern, pglob)
*pathend = EOS;
}
++pglob->gl_matchc;
return(globextend(pathbuf, pglob));
return(globextend(pathbuf, pglob, limit));
}
/* Find end of next segment, copy tentatively to pathend. */
@@ -576,15 +583,17 @@ 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,
limit));
}
/* NOTREACHED */
}
static int
glob3(pathbuf, pathend, pattern, restpattern, pglob)
glob3(pathbuf, pathend, pattern, restpattern, pglob, limit)
Char *pathbuf, *pathend, *pattern, *restpattern;
glob_t *pglob;
size_t *limit;
{
register struct dirent *dp;
DIR *dirp;
@@ -634,7 +643,7 @@ glob3(pathbuf, pathend, pattern, restpattern, pglob)
*pathend = EOS;
continue;
}
err = glob2(pathbuf, --dc, restpattern, pglob);
err = glob2(pathbuf, --dc, restpattern, pglob, limit);
if (err)
break;
}
@@ -662,13 +671,14 @@ glob3(pathbuf, pathend, pattern, restpattern, pglob)
* gl_pathv points to (gl_offs + gl_pathc + 1) items.
*/
static int
globextend(path, pglob)
globextend(path, pglob, limit)
const Char *path;
glob_t *pglob;
size_t *limit;
{
register char **pathv;
register int i;
u_int newsize;
size_t newsize, len;
char *copy;
const Char *p;
@@ -689,11 +699,19 @@ globextend(path, pglob)
for (p = path; *p++;)
continue;
if ((copy = malloc(p - path)) != NULL) {
len = (size_t)(p - path);
*limit += 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 + *limit) >= ARG_MAX) {
errno = 0;
return(GLOB_NOSPACE);
}
return(copy == NULL ? GLOB_NOSPACE : 0);
}