SYNTAX
#include "alloc.h"
char *alloc(new);
void alloc_free(x);
void alloc_re(&x,old,new);
char *x;
unsigned int old;
unsigned int new;
DESCRIPTION
alloc allocates enough space from the heap for new bytes of data,
adequately aligned for any data type. new may be 0. alloc returns a
pointer to the space. If space is not available, alloc returns 0,
setting errno appropriately.
alloc_free returns space to the heap.
alloc_re expands the space allocated to x from old bytes to new bytes.
It allocates new space, copies old bytes from the old space to the new
space, returns the old space to the heap, and changes x to point to the
new space. It then returns 1. If space is not available, alloc_re
returns 0, leaving the old space alone.
CVE-2005-1513
This version of alloc respects limits.h to avoid memory resource
exhaustion.
SEE ALSO
sbrk(2), malloc(3), error(3)
3 qlibs:(alloc)
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