diff options
author | rsc <rsc> | 2007-08-27 23:53:17 +0000 |
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committer | rsc <rsc> | 2007-08-27 23:53:17 +0000 |
commit | 3a2310f7465ed92db7ce9ecfd619e8ac2011a789 (patch) | |
tree | 38a9f7e9b714132bd449d6ed65b1c3c2435b1c10 | |
parent | 64c47374772c2311bf6d751869eabb95b017c2a7 (diff) | |
download | xv6-labs-3a2310f7465ed92db7ce9ecfd619e8ac2011a789.tar.gz xv6-labs-3a2310f7465ed92db7ce9ecfd619e8ac2011a789.tar.bz2 xv6-labs-3a2310f7465ed92db7ce9ecfd619e8ac2011a789.zip |
make code match comment
-rw-r--r-- | syscall.c | 13 | ||||
-rw-r--r-- | sysfile.c | 2 |
2 files changed, 7 insertions, 8 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); @@ -17,7 +17,7 @@ argfd(int n, int *pfd, struct file **pf) int fd; struct file *f; - if(argint(argno, &fd) < 0) + if(argint(n, &fd) < 0) return -1; if(fd < 0 || fd >= NOFILE || (f=cp->ofile[fd]) == 0) return -1; |