Changeset 58898d1d in mainline for uspace/lib/posix/source/unistd.c

Timestamp:

2017-03-24T20:31:54Z (7 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

8e9b2534

Parents:

c9e3692

Message:

Remove VFS_IN_SEEK from VFS

File:

• uspace/lib/posix/source/unistd.c (modified) (5 diffs)

uspace/lib/posix/source/unistd.c

@@ -47 +47 @@
 #include "libc/stats.h"
 #include "libc/malloc.h"
+#include "libc/vfs/vfs.h"
+#include "libc/sys/stat.h"
+
+aoff64_t posix_pos[MAX_OPEN_FILES];
 
 /* Array of environment variable strings (NAME=VALUE). */
@@ -175 +179 @@
 int posix_close(int fildes)
 {
+        posix_pos[fildes] = 0;
         return negerrno(close, fildes);
 }
@@ -188 +193 @@
 ssize_t posix_read(int fildes, void *buf, size_t nbyte)
 {
-        return negerrno(read, fildes, buf, nbyte);
+        return negerrno(read, fildes, &posix_pos[fildes], buf, nbyte);
 }
 
@@ -201 +206 @@
 ssize_t posix_write(int fildes, const void *buf, size_t nbyte)
 {
-        return negerrno(write, fildes, buf, nbyte);
+        return negerrno(write, fildes, &posix_pos[fildes], buf, nbyte);
 }
 
@@ -215 +220 @@
 posix_off_t posix_lseek(int fildes, posix_off_t offset, int whence)
 {
-        return negerrno(lseek, fildes, offset, whence);
+        struct stat st;
+
+        switch (whence) {
+        case SEEK_SET:
+                posix_pos[fildes] = offset;
+                break;
+        case SEEK_CUR:
+                posix_pos[fildes] += offset;
+                break;
+        case SEEK_END:
+                if (fstat(fildes, &st) != EOK) {
+                        errno = -errno;
+                        return -1;
+                }
+                posix_pos[fildes] = st.size + offset;
+                break;
+        }
+        return posix_pos[fildes];
 }