diff options
Diffstat (limited to 'src/lib9/create.c')
-rw-r--r-- | src/lib9/create.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/src/lib9/create.c b/src/lib9/create.c deleted file mode 100644 index e4e3c715..00000000 --- a/src/lib9/create.c +++ /dev/null @@ -1,75 +0,0 @@ -#define _GNU_SOURCE /* for Linux O_DIRECT */ -#include <u.h> -#define NOPLAN9DEFINES -#include <sys/file.h> -#include <unistd.h> -#include <fcntl.h> -#include <libc.h> -#include <sys/stat.h> -#ifndef O_DIRECT -#define O_DIRECT 0 -#endif - -int -p9create(char *path, int mode, ulong perm) -{ - int fd, cexec, umode, rclose, lock, rdwr; - struct flock fl; - - rdwr = mode&3; - lock = mode&OLOCK; - cexec = mode&OCEXEC; - rclose = mode&ORCLOSE; - mode &= ~(ORCLOSE|OCEXEC|OLOCK); - - /* XXX should get mode mask right? */ - fd = -1; - if(perm&DMDIR){ - if(mode != OREAD){ - werrstr("bad mode in directory create"); - goto out; - } - if(mkdir(path, perm&0777) < 0) - goto out; - fd = open(path, O_RDONLY); - }else{ - umode = (mode&3)|O_CREAT|O_TRUNC; - mode &= ~(3|OTRUNC); - if(mode&ODIRECT){ - umode |= O_DIRECT; - mode &= ~ODIRECT; - } - if(mode&OEXCL){ - umode |= O_EXCL; - mode &= ~OEXCL; - } - if(mode&OAPPEND){ - umode |= O_APPEND; - mode &= ~OAPPEND; - } - if(mode){ - werrstr("unsupported mode in create"); - goto out; - } - fd = open(path, umode, perm); - } -out: - if(fd >= 0){ - if(lock){ - fl.l_type = (rdwr==OREAD) ? F_RDLCK : F_WRLCK; - fl.l_whence = SEEK_SET; - fl.l_start = 0; - fl.l_len = 0; - if(fcntl(fd, F_SETLK, &fl) < 0){ - close(fd); - werrstr("lock: %r"); - return -1; - } - } - if(cexec) - fcntl(fd, F_SETFL, FD_CLOEXEC); - if(rclose) - remove(path); - } - return fd; -} |