nss-pam-ldapd/nss-pam-ldapd-0.7.x-epipe.patch
2012-09-09 20:07:04 +02:00

101 lines
3.6 KiB
Diff

diff -up nss-pam-ldapd-0.7.17/common/tio.c.epipe nss-pam-ldapd-0.7.17/common/tio.c
--- nss-pam-ldapd-0.7.17/common/tio.c.epipe 2012-09-09 19:59:27.189069033 +0200
+++ nss-pam-ldapd-0.7.17/common/tio.c 2012-09-09 20:00:34.378229054 +0200
@@ -312,10 +312,39 @@ int tio_read(TFILE *fp, void *buf, size_
}
}
-/* Read and discard the specified number of bytes from the stream. */
+/* Read and discard the specified number of bytes from the stream.
+ If count is 0 reads and discards any data that can be read and empties
+ the read buffer. */
int tio_skip(TFILE *fp, size_t count)
{
- return tio_read(fp,NULL,count);
+ int rv;
+ size_t len;
+ /* for simple cases just read */
+ if (count>0)
+ {
+ return tio_read(fp,NULL,count);
+ }
+ /* clear the read buffer */
+ fp->readbuffer.start=0;
+ fp->readbuffer.len=0;
+ fp->read_resettable=0;
+ /* read until we can't read no more */
+ len=fp->readbuffer.size;
+#ifdef SSIZE_MAX
+ if (len>SSIZE_MAX)
+ len=SSIZE_MAX;
+#endif /* SSIZE_MAX */
+ while (1)
+ {
+ rv=read(fp->fd,fp->readbuffer.buffer,len);
+ /* check for errors */
+ if (rv==0)
+ return 0; /* end-of-file */
+ if ((rv<0)&&(errno==EWOULDBLOCK))
+ return 0; /* we've ready everything we can without blocking */
+ if ((rv<0)&&(errno!=EINTR)&&(errno!=EAGAIN))
+ return -1; /* something went wrong with the read */
+ }
}
/* the caller has assured us that we can write to the file descriptor
diff -up nss-pam-ldapd-0.7.17/common/tio.h.epipe nss-pam-ldapd-0.7.17/common/tio.h
--- nss-pam-ldapd-0.7.17/common/tio.h.epipe 2012-09-09 20:00:55.145969422 +0200
+++ nss-pam-ldapd-0.7.17/common/tio.h 2012-09-09 20:01:48.294304972 +0200
@@ -2,7 +2,7 @@
tio.h - timed io functions
This file is part of the nss-pam-ldapd library.
- Copyright (C) 2007, 2008 Arthur de Jong
+ Copyright (C) 2007, 2008, 2010, 2012 Arthur de Jong
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@@ -56,7 +56,9 @@ TFILE *tio_fdopen(int fd,struct timeval
/* Read the specified number of bytes from the stream. */
int tio_read(TFILE *fp,void *buf,size_t count);
-/* Read and discard the specified number of bytes from the stream. */
+/* Read and discard the specified number of bytes from the stream.
+ If count is 0 reads and discards any data that can be read and empties
+ the read buffer. */
int tio_skip(TFILE *fp,size_t count);
/* Write the specified buffer to the stream. */
diff -up nss-pam-ldapd-0.7.17/nss/common.h.epipe nss-pam-ldapd-0.7.17/nss/common.h
--- nss-pam-ldapd-0.7.17/nss/common.h.epipe 2012-09-09 20:02:18.855922903 +0200
+++ nss-pam-ldapd-0.7.17/nss/common.h 2012-09-09 20:03:52.188756077 +0200
@@ -2,7 +2,7 @@
common.h - common functions for NSS lookups
Copyright (C) 2006 West Consulting
- Copyright (C) 2006, 2007, 2008, 2009, 2010 Arthur de Jong
+ Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Arthur de Jong
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@@ -97,8 +97,10 @@
READ_RESPONSE_CODE(fp); \
retv=readfn; \
/* close socket and we're done */ \
- if ((retv==NSS_STATUS_SUCCESS)||(retv==NSS_STATUS_TRYAGAIN)) \
+ if ((retv==NSS_STATUS_SUCCESS)||(retv==NSS_STATUS_TRYAGAIN)) { \
+ (void)tio_skip(fp,0); /* read any buffered data */ \
(void)tio_close(fp); \
+ } \
return retv;
/* This macro can be used to generate a get..byname() function
@@ -123,6 +125,7 @@
return NSS_STATUS_UNAVAIL; \
if (fp!=NULL) \
{ \
+ (void)tio_skip(fp,0); /* read any buffered data */ \
(void)tio_close(fp); \
fp=NULL; \
} \