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Add support for user-level 9P servers/clients and various bug fixes to go with them.

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This commit is contained in:
rsc 2003-12-11 17:48:38 +00:00
parent ac244f8d28
commit 32f69c36e0
60 changed files with 965 additions and 485 deletions
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88
src/cmd/sam/unix.c
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@ -214,92 +214,4 @@ erealloc(void *p, ulong n)
return p;
}
#if 0
char *
strdup(const char *s)
{
return strcpy(emalloc(strlen(s)), s);
}
#endif
/*
void exits(const char *s)
{
if (s) fprint(2, "exit: %s\n", s);
exit(s != 0);
}
void
_exits(const char *s)
{
if (s) fprint(2, "exit: %s\n", s);
_exit(s != 0);
}
int errstr(char *buf, int size)
{
extern int errno;
snprint(buf, size, "%s", strerror(errno));
return 1;
}
*/
int
create(char *name, int omode, ulong perm)
{
int mode;
int fd;
if (omode & OWRITE) mode = O_WRONLY;
else if (omode & OREAD) mode = O_RDONLY;
else mode = O_RDWR;
if ((fd = open(name, mode|O_CREAT|O_TRUNC, perm)) < 0)
return fd;
if (omode & OCEXEC)
fcntl(fd, F_SETFD, fcntl(fd,F_GETFD,0) | FD_CLOEXEC);
/* SES - not exactly right, but hopefully good enough. */
if (omode & ORCLOSE)
remove(name);
return fd;
}
/* SHOULD BE ELSEWHERE */
#if 0 /* needed on old __APPLE__ */
#include <lib9.h>
Lock plk;
ulong
pread(int fd, void *buf, ulong n, ulong off)
{
ulong rv;
lock(&plk);
if (lseek(fd, off, 0) != off)
return -1;
rv = read(fd, buf, n);
unlock(&plk);
return rv;
}
ulong
pwrite(int fd, void *buf, ulong n, ulong off)
{
ulong rv;
lock(&plk);
if (lseek(fd, off, 0) != off)
return -1;
rv = write(fd, buf, n);
unlock(&plk);
return rv;
}
#endif