diff options
Diffstat (limited to 'arch/um/os-Linux/file.c')
| -rw-r--r-- | arch/um/os-Linux/file.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c index 26e0164895e4..2db18cbbb0ea 100644 --- a/arch/um/os-Linux/file.c +++ b/arch/um/os-Linux/file.c @@ -264,6 +264,15 @@ int os_read_file(int fd, void *buf, int len) return n; } +int os_pread_file(int fd, void *buf, int len, unsigned long long offset) +{ + int n = pread(fd, buf, len, offset); + + if (n < 0) + return -errno; + return n; +} + int os_write_file(int fd, const void *buf, int len) { int n = write(fd, (void *) buf, len); @@ -282,6 +291,16 @@ int os_sync_file(int fd) return n; } +int os_pwrite_file(int fd, const void *buf, int len, unsigned long long offset) +{ + int n = pwrite(fd, (void *) buf, len, offset); + + if (n < 0) + return -errno; + return n; +} + + int os_file_size(const char *file, unsigned long long *size_out) { struct uml_stat buf; |