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Diffstat (limited to 'arch/um/os-Linux/file.c')
-rw-r--r--arch/um/os-Linux/file.c82
1 files changed, 31 insertions, 51 deletions
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index fd45bb260907..f55773c819e6 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -119,15 +119,11 @@ int os_window_size(int fd, int *rows, int *cols)
119 119
120int os_new_tty_pgrp(int fd, int pid) 120int os_new_tty_pgrp(int fd, int pid)
121{ 121{
122 if(ioctl(fd, TIOCSCTTY, 0) < 0){ 122 if(ioctl(fd, TIOCSCTTY, 0) < 0)
123 printk("TIOCSCTTY failed, errno = %d\n", errno); 123 return -errno;
124 return(-errno);
125 }
126 124
127 if(tcsetpgrp(fd, pid) < 0){ 125 if(tcsetpgrp(fd, pid) < 0)
128 printk("tcsetpgrp failed, errno = %d\n", errno); 126 return -errno;
129 return(-errno);
130 }
131 127
132 return(0); 128 return(0);
133} 129}
@@ -146,18 +142,12 @@ int os_set_slip(int fd)
146 int disc, sencap; 142 int disc, sencap;
147 143
148 disc = N_SLIP; 144 disc = N_SLIP;
149 if(ioctl(fd, TIOCSETD, &disc) < 0){ 145 if(ioctl(fd, TIOCSETD, &disc) < 0)
150 printk("Failed to set slip line discipline - " 146 return -errno;
151 "errno = %d\n", errno);
152 return(-errno);
153 }
154 147
155 sencap = 0; 148 sencap = 0;
156 if(ioctl(fd, SIOCSIFENCAP, &sencap) < 0){ 149 if(ioctl(fd, SIOCSIFENCAP, &sencap) < 0)
157 printk("Failed to set slip encapsulation - " 150 return -errno;
158 "errno = %d\n", errno);
159 return(-errno);
160 }
161 151
162 return(0); 152 return(0);
163} 153}
@@ -180,22 +170,15 @@ int os_sigio_async(int master, int slave)
180 int flags; 170 int flags;
181 171
182 flags = fcntl(master, F_GETFL); 172 flags = fcntl(master, F_GETFL);
183 if(flags < 0) { 173 if(flags < 0)
184 printk("fcntl F_GETFL failed, errno = %d\n", errno); 174 return errno;
185 return(-errno);
186 }
187 175
188 if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) || 176 if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) ||
189 (fcntl(master, F_SETOWN, os_getpid()) < 0)){ 177 (fcntl(master, F_SETOWN, os_getpid()) < 0))
190 printk("fcntl F_SETFL or F_SETOWN failed, errno = %d\n", 178 return -errno;
191 errno);
192 return(-errno);
193 }
194 179
195 if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0)){ 180 if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0))
196 printk("fcntl F_SETFL failed, errno = %d\n", errno); 181 return -errno;
197 return(-errno);
198 }
199 182
200 return(0); 183 return(0);
201} 184}
@@ -255,7 +238,7 @@ int os_file_mode(char *file, struct openflags *mode_out)
255 238
256int os_open_file(char *file, struct openflags flags, int mode) 239int os_open_file(char *file, struct openflags flags, int mode)
257{ 240{
258 int fd, f = 0; 241 int fd, err, f = 0;
259 242
260 if(flags.r && flags.w) f = O_RDWR; 243 if(flags.r && flags.w) f = O_RDWR;
261 else if(flags.r) f = O_RDONLY; 244 else if(flags.r) f = O_RDONLY;
@@ -272,8 +255,9 @@ int os_open_file(char *file, struct openflags flags, int mode)
272 return(-errno); 255 return(-errno);
273 256
274 if(flags.cl && fcntl(fd, F_SETFD, 1)){ 257 if(flags.cl && fcntl(fd, F_SETFD, 1)){
258 err = -errno;
275 os_close_file(fd); 259 os_close_file(fd);
276 return(-errno); 260 return err;
277 } 261 }
278 262
279 return(fd); 263 return(fd);
@@ -383,9 +367,9 @@ int os_file_size(char *file, unsigned long long *size_out)
383 return(fd); 367 return(fd);
384 } 368 }
385 if(ioctl(fd, BLKGETSIZE, &blocks) < 0){ 369 if(ioctl(fd, BLKGETSIZE, &blocks) < 0){
370 err = -errno;
386 printk("Couldn't get the block size of \"%s\", " 371 printk("Couldn't get the block size of \"%s\", "
387 "errno = %d\n", file, errno); 372 "errno = %d\n", file, errno);
388 err = -errno;
389 os_close_file(fd); 373 os_close_file(fd);
390 return(err); 374 return(err);
391 } 375 }
@@ -473,11 +457,14 @@ int os_pipe(int *fds, int stream, int close_on_exec)
473 457
474int os_set_fd_async(int fd, int owner) 458int os_set_fd_async(int fd, int owner)
475{ 459{
460 int err;
461
476 /* XXX This should do F_GETFL first */ 462 /* XXX This should do F_GETFL first */
477 if(fcntl(fd, F_SETFL, O_ASYNC | O_NONBLOCK) < 0){ 463 if(fcntl(fd, F_SETFL, O_ASYNC | O_NONBLOCK) < 0){
464 err = -errno;
478 printk("os_set_fd_async : failed to set O_ASYNC and " 465 printk("os_set_fd_async : failed to set O_ASYNC and "
479 "O_NONBLOCK on fd # %d, errno = %d\n", fd, errno); 466 "O_NONBLOCK on fd # %d, errno = %d\n", fd, errno);
480 return(-errno); 467 return err;
481 } 468 }
482#ifdef notdef 469#ifdef notdef
483 if(fcntl(fd, F_SETFD, 1) < 0){ 470 if(fcntl(fd, F_SETFD, 1) < 0){
@@ -488,10 +475,11 @@ int os_set_fd_async(int fd, int owner)
488 475
489 if((fcntl(fd, F_SETSIG, SIGIO) < 0) || 476 if((fcntl(fd, F_SETSIG, SIGIO) < 0) ||
490 (fcntl(fd, F_SETOWN, owner) < 0)){ 477 (fcntl(fd, F_SETOWN, owner) < 0)){
478 err = -errno;
491 printk("os_set_fd_async : Failed to fcntl F_SETOWN " 479 printk("os_set_fd_async : Failed to fcntl F_SETOWN "
492 "(or F_SETSIG) fd %d to pid %d, errno = %d\n", fd, 480 "(or F_SETSIG) fd %d to pid %d, errno = %d\n", fd,
493 owner, errno); 481 owner, errno);
494 return(-errno); 482 return err;
495 } 483 }
496 484
497 return(0); 485 return(0);
@@ -516,11 +504,9 @@ int os_set_fd_block(int fd, int blocking)
516 if(blocking) flags &= ~O_NONBLOCK; 504 if(blocking) flags &= ~O_NONBLOCK;
517 else flags |= O_NONBLOCK; 505 else flags |= O_NONBLOCK;
518 506
519 if(fcntl(fd, F_SETFL, flags) < 0){ 507 if(fcntl(fd, F_SETFL, flags) < 0)
520 printk("Failed to change blocking on fd # %d, errno = %d\n", 508 return -errno;
521 fd, errno); 509
522 return(-errno);
523 }
524 return(0); 510 return(0);
525} 511}
526 512
@@ -609,11 +595,8 @@ int os_create_unix_socket(char *file, int len, int close_on_exec)
609 int sock, err; 595 int sock, err;
610 596
611 sock = socket(PF_UNIX, SOCK_DGRAM, 0); 597 sock = socket(PF_UNIX, SOCK_DGRAM, 0);
612 if (sock < 0){ 598 if(sock < 0)
613 printk("create_unix_socket - socket failed, errno = %d\n", 599 return -errno;
614 errno);
615 return(-errno);
616 }
617 600
618 if(close_on_exec) { 601 if(close_on_exec) {
619 err = os_set_exec_close(sock, 1); 602 err = os_set_exec_close(sock, 1);
@@ -628,11 +611,8 @@ int os_create_unix_socket(char *file, int len, int close_on_exec)
628 snprintf(addr.sun_path, len, "%s", file); 611 snprintf(addr.sun_path, len, "%s", file);
629 612
630 err = bind(sock, (struct sockaddr *) &addr, sizeof(addr)); 613 err = bind(sock, (struct sockaddr *) &addr, sizeof(addr));
631 if (err < 0){ 614 if(err < 0)
632 printk("create_listening_socket at '%s' - bind failed, " 615 return -errno;
633 "errno = %d\n", file, errno);
634 return(-errno);
635 }
636 616
637 return(sock); 617 return(sock);
638} 618}