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Cast between longs and pointers via intptr_t. The results of fuword()

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should be checked before casting.  The results of suword() should be
checked.
This commit is contained in:
Bruce Evans 1998-07-15 06:19:33 +00:00
parent 109d5f9fa4
commit aae0aa4593
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=37662
1 changed files with 9 additions and 9 deletions
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18
sys/kern/kern_exec.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: kern_exec.c,v 1.82 1998/04/17 22:36:50 des Exp $
* $Id: kern_exec.c,v 1.83 1998/06/07 17:11:33 dfr Exp $
*/
#include <sys/param.h>
@ -313,7 +313,7 @@ execve(p, uap)
p->p_acflag &= ~AFORK;
/* Set entry address */
setregs(p, imgp->entry_addr, (u_long)stack_base);
setregs(p, imgp->entry_addr, (u_long)(uintptr_t)stack_base);
exec_fail_dealloc:
@ -485,7 +485,7 @@ exec_extract_strings(imgp)
argv = imgp->uap->argv;
if (argv) {
argp = (caddr_t) fuword(argv);
argp = (caddr_t) (intptr_t) fuword(argv);
if (argp == (caddr_t) -1)
return (EFAULT);
if (argp)
@ -505,7 +505,7 @@ exec_extract_strings(imgp)
imgp->stringspace -= length;
imgp->stringp += length;
imgp->argc++;
} while ((argp = (caddr_t) fuword(argv++)));
} while ((argp = (caddr_t) (intptr_t) fuword(argv++)));
}
}
@ -516,7 +516,7 @@ exec_extract_strings(imgp)
envv = imgp->uap->envv;
if (envv) {
while ((envp = (caddr_t) fuword(envv++))) {
while ((envp = (caddr_t) (intptr_t) fuword(envv++))) {
if (envp == (caddr_t) -1)
return (EFAULT);
if ((error = copyinstr(envp, imgp->stringp,
@ -603,14 +603,14 @@ exec_copyout_strings(imgp)
/*
* Fill in "ps_strings" struct for ps, w, etc.
*/
suword(&arginfo->ps_argvstr, (long)vectp);
suword(&arginfo->ps_argvstr, (long)(intptr_t)vectp);
suword(&arginfo->ps_nargvstr, argc);
/*
* Fill in argument portion of vector table.
*/
for (; argc > 0; --argc) {
suword(vectp++, (long)destp);
suword(vectp++, (long)(intptr_t)destp);
while (*stringp++ != 0)
destp++;
destp++;
@ -619,14 +619,14 @@ exec_copyout_strings(imgp)
/* a null vector table pointer seperates the argp's from the envp's */
suword(vectp++, 0);
suword(&arginfo->ps_envstr, (long)vectp);
suword(&arginfo->ps_envstr, (long)(intptr_t)vectp);
suword(&arginfo->ps_nenvstr, envc);
/*
* Fill in environment portion of vector table.
*/
for (; envc > 0; --envc) {
suword(vectp++, (long)destp);
suword(vectp++, (long)(intptr_t)destp);
while (*stringp++ != 0)
destp++;
destp++;