diff options
Diffstat (limited to 'arch/um/os-Linux/file.c')
| -rw-r--r-- | arch/um/os-Linux/file.c | 130 |
1 files changed, 47 insertions, 83 deletions
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c index c3ecc2a84e0..b542a3a021b 100644 --- a/arch/um/os-Linux/file.c +++ b/arch/um/os-Linux/file.c @@ -82,13 +82,6 @@ int os_access(const char* file, int mode) return 0; } -void os_print_error(int error, const char* str) -{ - errno = error < 0 ? -error : error; - - perror(str); -} - /* FIXME? required only by hostaudio (because it passes ioctls verbatim) */ int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg) { @@ -101,30 +94,6 @@ int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg) return err; } -int os_window_size(int fd, int *rows, int *cols) -{ - struct winsize size; - - if(ioctl(fd, TIOCGWINSZ, &size) < 0) - return -errno; - - *rows = size.ws_row; - *cols = size.ws_col; - - return 0; -} - -int os_new_tty_pgrp(int fd, int pid) -{ - if(ioctl(fd, TIOCSCTTY, 0) < 0) - return -errno; - - if(tcsetpgrp(fd, pid) < 0) - return -errno; - - return 0; -} - /* FIXME: ensure namebuf in os_get_if_name is big enough */ int os_get_ifname(int fd, char* namebuf) { @@ -205,19 +174,19 @@ int os_file_mode(char *file, struct openflags *mode_out) *mode_out = OPENFLAGS(); - err = os_access(file, OS_ACC_W_OK); - if((err < 0) && (err != -EACCES)) - return(err); - - *mode_out = of_write(*mode_out); - - err = os_access(file, OS_ACC_R_OK); - if((err < 0) && (err != -EACCES)) - return(err); + err = access(file, W_OK); + if(err && (errno != EACCES)) + return -errno; + else if(!err) + *mode_out = of_write(*mode_out); - *mode_out = of_read(*mode_out); + err = access(file, R_OK); + if(err && (errno != EACCES)) + return -errno; + else if(!err) + *mode_out = of_read(*mode_out); - return(0); + return err; } int os_open_file(char *file, struct openflags flags, int mode) @@ -236,15 +205,15 @@ int os_open_file(char *file, struct openflags flags, int mode) fd = open64(file, f, mode); if(fd < 0) - return(-errno); + return -errno; if(flags.cl && fcntl(fd, F_SETFD, 1)){ err = -errno; - os_close_file(fd); + close(fd); return err; } - return(fd); + return fd; } int os_connect_socket(char *name) @@ -280,9 +249,9 @@ void os_close_file(int fd) close(fd); } -int os_seek_file(int fd, __u64 offset) +int os_seek_file(int fd, unsigned long long offset) { - __u64 actual; + unsigned long long actual; actual = lseek64(fd, offset, SEEK_SET); if(actual != offset) @@ -316,31 +285,33 @@ int os_file_size(char *file, unsigned long long *size_out) err = os_stat_file(file, &buf); if(err < 0){ printk("Couldn't stat \"%s\" : err = %d\n", file, -err); - return(err); + return err; } if(S_ISBLK(buf.ust_mode)){ int fd; long blocks; - fd = os_open_file(file, of_read(OPENFLAGS()), 0); - if(fd < 0){ - printk("Couldn't open \"%s\", errno = %d\n", file, -fd); - return(fd); + fd = open(file, O_RDONLY, 0); + if(fd < 0) { + err = -errno; + printk("Couldn't open \"%s\", errno = %d\n", file, + errno); + return err; } if(ioctl(fd, BLKGETSIZE, &blocks) < 0){ err = -errno; printk("Couldn't get the block size of \"%s\", " "errno = %d\n", file, errno); - os_close_file(fd); - return(err); + close(fd); + return err; } *size_out = ((long long) blocks) * 512; - os_close_file(fd); - return(0); + close(fd); } - *size_out = buf.ust_size; - return(0); + else *size_out = buf.ust_size; + + return 0; } int os_file_modtime(char *file, unsigned long *modtime) @@ -358,35 +329,28 @@ int os_file_modtime(char *file, unsigned long *modtime) return 0; } -int os_get_exec_close(int fd, int* close_on_exec) +int os_get_exec_close(int fd, int *close_on_exec) { int ret; - do { - ret = fcntl(fd, F_GETFD); - } while((ret < 0) && (errno == EINTR)) ; + CATCH_EINTR(ret = fcntl(fd, F_GETFD)); if(ret < 0) - return(-errno); + return -errno; - *close_on_exec = (ret&FD_CLOEXEC) ? 1 : 0; - return(ret); + *close_on_exec = (ret & FD_CLOEXEC) ? 1 : 0; + return ret; } -int os_set_exec_close(int fd, int close_on_exec) +int os_set_exec_close(int fd) { - int flag, err; - - if(close_on_exec) flag = FD_CLOEXEC; - else flag = 0; + int err; - do { - err = fcntl(fd, F_SETFD, flag); - } while((err < 0) && (errno == EINTR)) ; + CATCH_EINTR(err = fcntl(fd, F_SETFD, FD_CLOEXEC)); if(err < 0) - return(-errno); - return(err); + return -errno; + return err; } int os_pipe(int *fds, int stream, int close_on_exec) @@ -395,16 +359,16 @@ int os_pipe(int *fds, int stream, int close_on_exec) err = socketpair(AF_UNIX, type, 0, fds); if(err < 0) - return(-errno); + return -errno; if(!close_on_exec) - return(0); + return 0; - err = os_set_exec_close(fds[0], 1); + err = os_set_exec_close(fds[0]); if(err < 0) goto error; - err = os_set_exec_close(fds[1], 1); + err = os_set_exec_close(fds[1]); if(err < 0) goto error; @@ -412,9 +376,9 @@ int os_pipe(int *fds, int stream, int close_on_exec) error: printk("os_pipe : Setting FD_CLOEXEC failed, err = %d\n", -err); - os_close_file(fds[1]); - os_close_file(fds[0]); - return(err); + close(fds[1]); + close(fds[0]); + return err; } int os_set_fd_async(int fd, int owner) @@ -561,7 +525,7 @@ int os_create_unix_socket(char *file, int len, int close_on_exec) return -errno; if(close_on_exec) { - err = os_set_exec_close(sock, 1); + err = os_set_exec_close(sock); if(err < 0) printk("create_unix_socket : close_on_exec failed, " "err = %d", -err); |