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2001-11-30 Jennifer Averett <jennifer@OARcorp.com>

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This was tracked as PR88.
	* libc/scandir.c: Fixed to perform cleanup on error conditions.
This commit is contained in:
Joel Sherrill
2001-11-30 12:03:15 +00:00
parent 7fe83def1b
commit c43d7bd117
4 changed files with 74 additions and 21 deletions
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30
c/src/exec/libcsupport/src/scandir.c
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@@ -83,16 +83,19 @@ scandir(dirname, namelist, select, dcomp)
int (*select) __P((struct dirent *));
int (*dcomp) __P((const void *, const void *));
{
register struct dirent *d, *p, **names;
register struct dirent *d = NULL;
register struct dirent *p = NULL;
register struct dirent **names = NULL;
register size_t nitems;
struct stat stb;
long arraysz;
DIR *dirp;
DIR *dirp = NULL;
int i;
if ((dirp = opendir(dirname)) == NULL)
return(-1);
if (fstat(dirp->dd_fd, &stb) < 0)
return(-1);
goto cleanup_and_bail;
/*
* estimate the array size by taking the size of the directory file
@@ -101,7 +104,7 @@ scandir(dirname, namelist, select, dcomp)
arraysz = (stb.st_size / 24);
names = (struct dirent **)malloc(arraysz * sizeof(struct dirent *));
if (names == NULL)
return(-1);
goto cleanup_and_bail;
nitems = 0;
while ((d = readdir(dirp)) != NULL) {
@@ -112,7 +115,7 @@ scandir(dirname, namelist, select, dcomp)
*/
p = (struct dirent *)malloc(DIRSIZ(d));
if (p == NULL)
return(-1);
goto cleanup_and_bail;
p->d_ino = d->d_ino;
p->d_reclen = d->d_reclen;
p->d_namlen = d->d_namlen;
@@ -123,12 +126,12 @@ scandir(dirname, namelist, select, dcomp)
*/
if (++nitems >= arraysz) {
if (fstat(dirp->dd_fd, &stb) < 0)
return(-1); /* just might have grown */
goto cleanup_and_bail; /* just might have grown */
arraysz = stb.st_size / 12;
names = (struct dirent **)realloc((char *)names,
arraysz * sizeof(struct dirent *));
if (names == NULL)
return(-1);
goto cleanup_and_bail;
}
names[nitems-1] = p;
}
@@ -138,6 +141,19 @@ scandir(dirname, namelist, select, dcomp)
}
*namelist = names;
return(nitems);
cleanup_and_bail:
if ( dirp )
closedir( dirp );
if ( names ) {
for (i=0; i < nitems; i++ )
free( names[i] );
free( names );
}
return(-1);
}
/*