proc_t** readproctab(int flags, ... );
void freeproctab(proc_t **p);
readproctab reads information on all processes matching the criteria from flags, allocating memory for everything as needed. It returns a NULL-terminated list of proc_t pointers. For more information on the arguments of readproctab, see openproc(3).
freeproctab frees all memory allocated by readproctab.
The proc_t structure is defined in <proc/readproc.h>, please look there for a definition of all fields.