diff options
Diffstat (limited to 'lib/libc/xdr/xdr.c')
| -rw-r--r-- | lib/libc/xdr/xdr.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/lib/libc/xdr/xdr.c b/lib/libc/xdr/xdr.c index 4435119..20e4c21 100644 --- a/lib/libc/xdr/xdr.c +++ b/lib/libc/xdr/xdr.c @@ -52,6 +52,8 @@ __FBSDID("$FreeBSD$"); #include <stdlib.h> #include <string.h> +#include <rpc/rpc.h> +#include <rpc/rpc_com.h> #include <rpc/types.h> #include <rpc/xdr.h> #include "un-namespace.h" @@ -64,7 +66,6 @@ typedef u_quad_t u_longlong_t; /* ANSI unsigned long long type */ */ #define XDR_FALSE ((long) 0) #define XDR_TRUE ((long) 1) -#define LASTUNSIGNED ((u_int) 0-1) /* * for unit alignment @@ -602,6 +603,7 @@ xdr_bytes(xdrs, cpp, sizep, maxsize) { char *sp = *cpp; /* sp is the actual string pointer */ u_int nodesize; + bool_t ret, allocated = FALSE; /* * first deal with the length since xdr bytes are counted @@ -625,6 +627,7 @@ xdr_bytes(xdrs, cpp, sizep, maxsize) } if (sp == NULL) { *cpp = sp = mem_alloc(nodesize); + allocated = TRUE; } if (sp == NULL) { warnx("xdr_bytes: out of memory"); @@ -633,7 +636,14 @@ xdr_bytes(xdrs, cpp, sizep, maxsize) /* FALLTHROUGH */ case XDR_ENCODE: - return (xdr_opaque(xdrs, sp, nodesize)); + ret = xdr_opaque(xdrs, sp, nodesize); + if ((xdrs->x_op == XDR_DECODE) && (ret == FALSE)) { + if (allocated == TRUE) { + free(sp); + *cpp = NULL; + } + } + return (ret); case XDR_FREE: if (sp != NULL) { @@ -727,6 +737,7 @@ xdr_string(xdrs, cpp, maxsize) char *sp = *cpp; /* sp is the actual string pointer */ u_int size; u_int nodesize; + bool_t ret, allocated = FALSE; /* * first deal with the length since xdr strings are counted-strings @@ -760,8 +771,10 @@ xdr_string(xdrs, cpp, maxsize) if (nodesize == 0) { return (TRUE); } - if (sp == NULL) + if (sp == NULL) { *cpp = sp = mem_alloc(nodesize); + allocated = TRUE; + } if (sp == NULL) { warnx("xdr_string: out of memory"); return (FALSE); @@ -770,7 +783,14 @@ xdr_string(xdrs, cpp, maxsize) /* FALLTHROUGH */ case XDR_ENCODE: - return (xdr_opaque(xdrs, sp, size)); + ret = xdr_opaque(xdrs, sp, size); + if ((xdrs->x_op == XDR_DECODE) && (ret == FALSE)) { + if (allocated == TRUE) { + free(sp); + *cpp = NULL; + } + } + return (ret); case XDR_FREE: mem_free(sp, nodesize); @@ -790,7 +810,7 @@ xdr_wrapstring(xdrs, cpp) XDR *xdrs; char **cpp; { - return xdr_string(xdrs, cpp, LASTUNSIGNED); + return xdr_string(xdrs, cpp, RPC_MAXDATASIZE); } /* |
