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syscalls: misc fixes

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Matheus
2023-07-05 00:03:13 -03:00
parent f31295460c
commit c0fdd5700e
5 changed files with 16 additions and 17 deletions
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kernel-src/sys/syscalls/execve.c
+3 -2
View File
@@ -91,8 +91,9 @@ syscallret_t syscall_execve(context_t *context, char *upath, char *uargv[], char
goto error;
if (interp) {
vnode_t *interpnode;
ret.errno = vfs_lookup(&interpnode, refnode, interp, NULL, 0);
vnode_t *interpnode = NULL;
vnode_t *interprefnode = *interp == '/' ? sched_getroot() : sched_getcwd();
ret.errno = vfs_lookup(&interpnode, interprefnode, interp, NULL, 0);
if (ret.errno)
goto error;
kernel-src/sys/syscalls/exit.c
-3
View File
@@ -37,9 +37,6 @@ __attribute__((noreturn)) void syscall_exit(context_t *context, int status) {
}
if (lastchild) {
if (lastchild->sibling->state == SCHED_PROC_STATE_ZOMBIE)
haszombie = true;
lastchild->sibling = sched_initproc->child;
sched_initproc->child = proc->child;
}
kernel-src/sys/syscalls/pipe2.c
+5 -6
View File
@@ -15,8 +15,7 @@ static void open(file_t *file, vnode_t *node, int flags) {
}
syscallret_t syscall_pipe2(context_t *, int flags) {
// TODO support them
__assert(flags == 0);
__assert((flags & ~(O_CLOEXEC | O_NONBLOCK)) == 0);
syscallret_t ret = {
.ret = -1
};
@@ -33,17 +32,17 @@ syscallret_t syscall_pipe2(context_t *, int flags) {
// node held again because two files will point to the same node
VOP_HOLD(node);
ret.errno = fd_new(0, &readfile, &readfd);
ret.errno = fd_new(flags & O_CLOEXEC, &readfile, &readfd);
if (ret.errno)
goto error;
open(readfile, node, FILE_READ);
open(readfile, node, FILE_READ | (flags & O_NONBLOCK));
ret.errno = fd_new(0, &writefile, &writefd);
ret.errno = fd_new(flags & O_CLOEXEC, &writefile, &writefd);
if (ret.errno)
goto error;
open(writefile, node, FILE_WRITE);
open(writefile, node, FILE_WRITE | (flags & O_NONBLOCK));
ret.errno = 0;
ret.ret = (uint64_t)readfd | ((uint64_t)writefd << 32);
kernel-src/sys/syscalls/seek.c
+4 -5
View File
@@ -37,8 +37,8 @@ syscallret_t syscall_seek(context_t *context, int fd, off_t offset, int whence)
case SEEK_SET:
newoffset = offset;
break;
case SEEK_CUR: {
uintmax_t newoffset = curroffset + offset;
case SEEK_CUR:
newoffset = curroffset + offset;
if (offset > 0 && newoffset < curroffset) {
ret.errno = EOVERFLOW;
goto cleanup;
@@ -47,9 +47,7 @@ syscallret_t syscall_seek(context_t *context, int fd, off_t offset, int whence)
ret.errno = EINVAL;
goto cleanup;
}
newoffset = newoffset;
break;
}
case SEEK_END: {
vattr_t attr;
ret.errno = VOP_GETATTR(file->vnode, &attr, &_cpu()->thread->proc->cred);
@@ -60,8 +58,9 @@ syscallret_t syscall_seek(context_t *context, int fd, off_t offset, int whence)
}
}
printf("ret: new %lu old %lu whence %d\n", newoffset, file->offset, whence);
file->offset = newoffset;
ret.ret = file->offset;
ret.ret = newoffset;
ret.errno = 0;
cleanup:
kernel-src/sys/syscalls/stat.c
+4 -1
View File
@@ -88,7 +88,7 @@ syscallret_t syscall_fstatat(context_t *ctx, int dirfd, char *upath, stat_t *ust
}
vnode_t *node = NULL;
ret.errno = vfs_lookup(&node, dirnode, upath, NULL, flags & AT_SYMLINK_NOFOLLOW ? VFS_LOOKUP_NOLINK : 0);
ret.errno = vfs_lookup(&node, dirnode, path, NULL, flags & AT_SYMLINK_NOFOLLOW ? VFS_LOOKUP_NOLINK : 0);
if (ret.errno)
goto cleanup;
@@ -109,5 +109,8 @@ syscallret_t syscall_fstatat(context_t *ctx, int dirfd, char *upath, stat_t *ust
fd_release(file);
else
VOP_RELEASE(dirnode);
free(path);
return ret;
}