HelenOS sources

O_RDONLY           49 uspace/lib/posix/include/posix/fcntl.h #define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
O_RDONLY          118 uspace/lib/posix/src/fcntl.c 	if (((posix_flags & (O_RDONLY | O_WRONLY | O_RDWR)) == 0) ||
O_RDONLY          119 uspace/lib/posix/src/fcntl.c 	    ((posix_flags & (O_RDONLY | O_WRONLY)) == (O_RDONLY | O_WRONLY)) ||
O_RDONLY          120 uspace/lib/posix/src/fcntl.c 	    ((posix_flags & (O_RDONLY | O_RDWR)) == (O_RDONLY | O_RDWR)) ||
O_RDONLY          136 uspace/lib/posix/src/fcntl.c 	    ((posix_flags & O_RDONLY) ? MODE_READ : 0) |
O_RDONLY          418 uspace/lib/posix/src/unistd.c 		int fd = open(path, O_RDONLY);