diff options
Diffstat (limited to 'syscall.c')
| -rw-r--r-- | syscall.c | 13 |
1 files changed, 6 insertions, 7 deletions
@@ -42,20 +42,20 @@ fetchstr(struct proc *p, uint addr, char **pp) // Fetch the argno'th 32-bit system call argument. int -argint(int argno, int *ip) +argint(int n, int *ip) { - return fetchint(cp, cp->tf->esp + 4 + 4*argno, ip); + return fetchint(cp, cp->tf->esp + 4 + 4*n, ip); } // Fetch the nth word-sized system call argument as a pointer // to a block of memory of size n bytes. Check that the pointer // lies within the process address space. int -argptr(int argno, char **pp, int size) +argptr(int n, char **pp, int size) { int i; - if(argint(argno, &i) < 0) + if(argint(n, &i) < 0) return -1; if((uint)i >= cp->sz || (uint)i+size >= cp->sz) return -1; @@ -68,10 +68,10 @@ argptr(int argno, char **pp, int size) // (There is no shared writable memory, so the string can't change // between this check and being used by the kernel.) int -argstr(int argno, char **pp) +argstr(int n, char **pp) { int addr; - if(argint(argno, &addr) < 0) + if(argint(n, &addr) < 0) return -1; return fetchstr(cp, addr, pp); } @@ -88,7 +88,6 @@ extern int sys_kill(void); extern int sys_link(void); extern int sys_mkdir(void); extern int sys_mknod(void); -//PAGEBREAK: 0 extern int sys_open(void); extern int sys_pipe(void); extern int sys_read(void); |