OpenSolaris_b135/cmd/rpcgen/rpc_cout.c
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
/*
* rpc_cout.c, XDR routine outputter for the RPC protocol compiler
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "rpc_parse.h"
#include "rpc_util.h"
extern void crash(void);
static void print_header(definition *);
static void print_trailer(void);
static void emit_enum(definition *);
static void emit_program(definition *);
static void emit_union(definition *);
static void emit_struct(definition *);
static void emit_typedef(definition *);
static void print_stat(int, declaration *);
static void emit_inline(int, declaration *, int);
static void emit_inline64(int, declaration *, int);
static void emit_single_in_line(int, declaration *, int, relation);
static void emit_single_in_line64(int, declaration *, int, relation);
static char *upcase(char *);
/*
* Emit the C-routine for the given definition
*/
void
emit(definition *def)
{
if (def->def_kind == DEF_CONST)
return;
if (def->def_kind == DEF_PROGRAM) {
emit_program(def);
return;
}
if (def->def_kind == DEF_TYPEDEF) {
/*
* now we need to handle declarations like
* struct typedef foo foo;
* since we dont want this to be expanded into 2 calls
* to xdr_foo
*/
if (strcmp(def->def.ty.old_type, def->def_name) == 0)
return;
};
print_header(def);
switch (def->def_kind) {
case DEF_UNION:
emit_union(def);
break;
case DEF_ENUM:
emit_enum(def);
break;
case DEF_STRUCT:
emit_struct(def);
break;
case DEF_TYPEDEF:
emit_typedef(def);
break;
}
print_trailer();
}
static int
findtype(definition *def, char *type)
{
if (def->def_kind == DEF_PROGRAM || def->def_kind == DEF_CONST)
return (0);
return (streq(def->def_name, type));
}
static int
undefined(char *type)
{
definition *def;
def = (definition *)FINDVAL(defined, type, findtype);
return (def == NULL);
}
static void
print_generic_header(char *procname, int pointerp)
{
f_print(fout, "\n");
f_print(fout, "bool_t\n");
if (Cflag) {
f_print(fout, "xdr_%s(", procname);
f_print(fout, "XDR *xdrs, ");
f_print(fout, "%s ", procname);
if (pointerp)
f_print(fout, "*");
f_print(fout, "objp)\n{\n\n");
} else {
f_print(fout, "xdr_%s(xdrs, objp)\n", procname);
f_print(fout, "\tXDR *xdrs;\n");
f_print(fout, "\t%s ", procname);
if (pointerp)
f_print(fout, "*");
f_print(fout, "objp;\n{\n\n");
}
}
static void
print_header(definition *def)
{
print_generic_header(def->def_name,
def->def_kind != DEF_TYPEDEF ||
!isvectordef(def->def.ty.old_type, def->def.ty.rel));
/* Now add Inline support */
if (inlinelen == 0)
return;
/* May cause lint to complain. but ... */
f_print(fout, "\trpc_inline_t *buf;\n\n");
}
static void
print_prog_header(proc_list *plist)
{
print_generic_header(plist->args.argname, 1);
}
static void
print_trailer(void)
{
f_print(fout, "\treturn (TRUE);\n");
f_print(fout, "}\n");
}
static void
print_ifopen(int indent, char *name)
{
tabify(fout, indent);
if (streq(name, "rpcprog_t") ||
streq(name, "rpcvers_t") ||
streq(name, "rpcproc_t") ||
streq(name, "rpcprot_t") ||
streq(name, "rpcport_t"))
(void) strtok(name, "_");
f_print(fout, "if (!xdr_%s(xdrs", name);
}
static void
print_ifarg(char *arg)
{
f_print(fout, ", %s", arg);
}
static void
print_ifsizeof(int indent, char *prefix, char *type)
{
if (indent) {
f_print(fout, ",\n");
tabify(fout, indent);
} else {
f_print(fout, ", ");
}
if (streq(type, "bool")) {
f_print(fout, "sizeof (bool_t), (xdrproc_t)xdr_bool");
} else {
f_print(fout, "sizeof (");
if (undefined(type) && prefix) {
f_print(fout, "%s ", prefix);
}
f_print(fout, "%s), (xdrproc_t)xdr_%s", type, type);
}
}
static void
print_ifclose(int indent)
{
f_print(fout, "))\n");
tabify(fout, indent);
f_print(fout, "\treturn (FALSE);\n");
}
static void
print_ifstat(int indent, char *prefix, char *type, relation rel,
char *amax, char *objname, char *name)
{
char *alt = NULL;
switch (rel) {
case REL_POINTER:
print_ifopen(indent, "pointer");
print_ifarg("(char **)");
f_print(fout, "%s", objname);
print_ifsizeof(0, prefix, type);
break;
case REL_VECTOR:
if (streq(type, "string"))
alt = "string";
else if (streq(type, "opaque"))
alt = "opaque";
if (alt) {
print_ifopen(indent, alt);
print_ifarg(objname);
} else {
print_ifopen(indent, "vector");
print_ifarg("(char *)");
f_print(fout, "%s", objname);
}
print_ifarg(amax);
if (!alt)
print_ifsizeof(indent + 1, prefix, type);
break;
case REL_ARRAY:
if (streq(type, "string"))
alt = "string";
else if (streq(type, "opaque"))
alt = "bytes";
if (streq(type, "string")) {
print_ifopen(indent, alt);
print_ifarg(objname);
} else {
if (alt)
print_ifopen(indent, alt);
else
print_ifopen(indent, "array");
print_ifarg("(char **)");
if (*objname == '&')
f_print(fout, "%s.%s_val, (u_int *) %s.%s_len",
objname, name, objname, name);
else
f_print(fout,
"&%s->%s_val, (u_int *) &%s->%s_len",
objname, name, objname, name);
}
print_ifarg(amax);
if (!alt)
print_ifsizeof(indent + 1, prefix, type);
break;
case REL_ALIAS:
print_ifopen(indent, type);
print_ifarg(objname);
break;
}
print_ifclose(indent);
}
/* ARGSUSED */
static void
emit_enum(definition *def)
{
print_ifopen(1, "enum");
print_ifarg("(enum_t *)objp");
print_ifclose(1);
}
static void
emit_program(definition *def)
{
decl_list *dl;
version_list *vlist;
proc_list *plist;
for (vlist = def->def.pr.versions; vlist != NULL; vlist = vlist->next)
for (plist = vlist->procs; plist != NULL; plist = plist->next) {
if (!newstyle || plist->arg_num < 2)
continue; /* old style, or single argument */
print_prog_header(plist);
for (dl = plist->args.decls; dl != NULL;
dl = dl->next)
print_stat(1, &dl->decl);
print_trailer();
}
}
static void
emit_union(definition *def)
{
declaration *dflt;
case_list *cl;
declaration *cs;
char *object;
print_stat(1, &def->def.un.enum_decl);
f_print(fout, "\tswitch (objp->%s) {\n", def->def.un.enum_decl.name);
for (cl = def->def.un.cases; cl != NULL; cl = cl->next) {
f_print(fout, "\tcase %s:\n", cl->case_name);
if (cl->contflag == 1) /* a continued case statement */
continue;
cs = &cl->case_decl;
if (!streq(cs->type, "void")) {
size_t len = strlen(def->def_name) +
strlen("&objp->%s_u.%s") +
strlen(cs->name) + 1;
object = malloc(len);
if (isvectordef(cs->type, cs->rel))
(void) snprintf(object, len, "objp->%s_u.%s",
def->def_name, cs->name);
else
(void) snprintf(object, len, "&objp->%s_u.%s",
def->def_name, cs->name);
print_ifstat(2, cs->prefix, cs->type, cs->rel,
cs->array_max, object, cs->name);
free(object);
}
f_print(fout, "\t\tbreak;\n");
}
dflt = def->def.un.default_decl;
if (dflt != NULL) {
if (!streq(dflt->type, "void")) {
size_t len = strlen(def->def_name) +
strlen("&objp->%s_u.%s") +
strlen(dflt->name) + 1;
f_print(fout, "\tdefault:\n");
object = malloc(len);
if (isvectordef(dflt->type, dflt->rel))
(void) snprintf(object, len, "objp->%s_u.%s",
def->def_name, dflt->name);
else
(void) snprintf(object, len, "&objp->%s_u.%s",
def->def_name, dflt->name);
print_ifstat(2, dflt->prefix, dflt->type, dflt->rel,
dflt->array_max, object, dflt->name);
free(object);
f_print(fout, "\t\tbreak;\n");
}
} else {
f_print(fout, "\tdefault:\n");
f_print(fout, "\t\treturn (FALSE);\n");
}
f_print(fout, "\t}\n");
}
static void
expand_inline(int indent, const char *sizestr,
int size, int flag, decl_list *dl, decl_list *cur)
{
decl_list *psav;
/*
* were already looking at a xdr_inlineable structure
*/
tabify(fout, indent + 1);
if (sizestr == NULL)
f_print(fout,
"buf = XDR_INLINE(xdrs, %d * BYTES_PER_XDR_UNIT);",
size);
else if (size == 0)
f_print(fout,
"buf = XDR_INLINE(xdrs, (%s) * BYTES_PER_XDR_UNIT);",
sizestr);
else
f_print(fout,
"buf = XDR_INLINE(xdrs, (%d + (%s)) "
"* BYTES_PER_XDR_UNIT);", size, sizestr);
f_print(fout, "\n");
tabify(fout, indent + 1);
f_print(fout, "if (buf == NULL) {\n");
psav = cur;
while (cur != dl) {
print_stat(indent + 2,
&cur->decl);
cur = cur->next;
}
tabify(fout, indent+1);
f_print(fout, "} else {\n");
f_print(fout, "#if defined(_LP64) || defined(_KERNEL)\n");
cur = psav;
while (cur != dl) {
emit_inline64(indent + 2, &cur->decl, flag);
cur = cur->next;
}
f_print(fout, "#else\n");
cur = psav;
while (cur != dl) {
emit_inline(indent + 2, &cur->decl, flag);
cur = cur->next;
}
f_print(fout, "#endif\n");
tabify(fout, indent + 1);
f_print(fout, "}\n");
}
/*
* An inline type is a base type (interger type) or a vector of base types.
*/
static int
inline_type(declaration *dc, int *size)
{
bas_type *ptr;
*size = 0;
if (dc->prefix == NULL &&
(dc->rel == REL_ALIAS || dc->rel == REL_VECTOR)) {
ptr = find_type(dc->type);
if (ptr != NULL) {
*size = ptr->length;
return (1);
}
}
return (0);
}
static char *
arraysize(char *sz, declaration *dc, int elsize)
{
int len;
int elsz = elsize;
int digits;
int slen = 0;
char *plus = "";
char *tmp;
size_t tlen;
/*
* Calculate the size of a string to hold the size of all arrays
* to be inlined.
*
* We have the string representation of the total size that has already
* been seen. (Null if this is the first array).
* We have the string representation of array max from the declaration,
* optionally the plus string, " + ", if this is not the first array,
* and the number of digits for the element size for this declaration.
*/
if (sz != NULL) {
plus = " + ";
slen = strlen(sz);
}
/* Calculate the number of digits to hold the element size */
for (digits = 1; elsz >= 10; digits++)
elsz /= 10;
/*
* If elsize != 1 the allocate 3 extra bytes for the times
* string, " * ", the "()" below, and the digits. One extra
* for the trailing NULL
*/
len = strlen(dc->array_max) + (elsize == 1 ? 0 : digits + 5) + 1;
tlen = slen + len + strlen(plus);
tmp = realloc(sz, tlen);
if (tmp == NULL) {
f_print(stderr, "Fatal error : no memory\n");
crash();
}
if (elsize == 1)
(void) snprintf(tmp + slen, tlen - slen, "%s%s",
plus, dc->array_max);
else
(void) snprintf(tmp + slen, tlen - slen, "%s(%s) * %d",
plus, dc->array_max, elsize);
return (tmp);
}
static void
inline_struct(decl_list *dl, decl_list *last, int flag, int indent)
{
int size, tsize;
decl_list *cur;
char *sizestr;
cur = NULL;
tsize = 0;
sizestr = NULL;
for (; dl != last; dl = dl->next) {
if (inline_type(&dl->decl, &size)) {
if (cur == NULL)
cur = dl;
if (dl->decl.rel == REL_ALIAS)
tsize += size;
else {
/* this code is required to handle arrays */
sizestr = arraysize(sizestr, &dl->decl, size);
}
} else {
if (cur != NULL)
if (sizestr == NULL && tsize < inlinelen) {
/*
* don't expand into inline code
* if tsize < inlinelen
*/
while (cur != dl) {
print_stat(indent + 1,
&cur->decl);
cur = cur->next;
}
} else {
expand_inline(indent, sizestr,
tsize, flag, dl, cur);
}
tsize = 0;
cur = NULL;
sizestr = NULL;
print_stat(indent + 1, &dl->decl);
}
}
if (cur == NULL)
return;
if (sizestr == NULL && tsize < inlinelen) {
/* don't expand into inline code if tsize < inlinelen */
while (cur != dl) {
print_stat(indent + 1, &cur->decl);
cur = cur->next;
}
} else {
expand_inline(indent, sizestr, tsize, flag, dl, cur);
}
}
/*
* Check if we can inline this structure. While we are at it check if the
* declaration list has any vectors defined of "basic" types.
*/
static int
check_inline(decl_list *dl, int inlinelen, int *have_vector)
{
int tsize = 0;
int size;
int doinline = 0;
*have_vector = 0;
if (inlinelen == 0)
return (0);
for (; dl != NULL; dl = dl->next) {
if (!inline_type(&dl->decl, &size)) {
tsize = 0;
continue;
}
if (dl->decl.rel == REL_VECTOR) {
*have_vector = 1;
return (1);
}
tsize += size;
if (tsize >= inlinelen)
doinline = 1;
}
return (doinline);
}
static void
emit_struct_tail_recursion(definition *defp, int can_inline)
{
int indent = 3;
struct_def *sp = &defp->def.st;
decl_list *dl;
f_print(fout, "\t%s *tmp_%s;\n",
defp->def_name, defp->def_name);
f_print(fout, "\tbool_t more_data = TRUE;\n");
f_print(fout, "\tbool_t first_objp = TRUE;\n\n");
f_print(fout, "\n\tif (xdrs->x_op == XDR_DECODE) {\n");
f_print(fout, "\n\t\twhile (more_data) {\n");
f_print(fout, "\n\t\t\tvoid bzero();\n\n");
if (can_inline)
inline_struct(sp->decls, sp->tail, GET, indent);
else
for (dl = sp->decls; dl != NULL && dl != sp->tail;
dl = dl->next)
print_stat(indent, &dl->decl);
f_print(fout, "\t\t\tif (!xdr_bool(xdrs, "
"&more_data))\n\t\t\t\treturn (FALSE);\n");
f_print(fout, "\n\t\t\tif (!more_data) {\n");
f_print(fout, "\t\t\t\tobjp->%s = NULL;\n", sp->tail->decl.name);
f_print(fout, "\t\t\t\tbreak;\n");
f_print(fout, "\t\t\t}\n\n");
f_print(fout, "\t\t\tif (objp->%s == NULL) {\n", sp->tail->decl.name);
f_print(fout, "\t\t\t\tobjp->%s = "
"(%s *)\n\t\t\t\t\tmem_alloc(sizeof (%s));\n",
sp->tail->decl.name, defp->def_name, defp->def_name);
f_print(fout, "\t\t\t\tif (objp->%s == NULL)\n"
"\t\t\t\t\treturn (FALSE);\n", sp->tail->decl.name);
f_print(fout, "\t\t\t\tbzero(objp->%s, sizeof (%s));\n",
sp->tail->decl.name, defp->def_name);
f_print(fout, "\t\t\t}\n");
f_print(fout, "\t\t\tobjp = objp->%s;\n", sp->tail->decl.name);
f_print(fout, "\t\t}\n");
f_print(fout, "\n\t} else if (xdrs->x_op == XDR_ENCODE) {\n");
f_print(fout, "\n\t\twhile (more_data) {\n");
if (can_inline)
inline_struct(sp->decls, sp->tail, PUT, indent);
else
for (dl = sp->decls; dl != NULL && dl != sp->tail;
dl = dl->next)
print_stat(indent, &dl->decl);
f_print(fout, "\t\t\tobjp = objp->%s;\n", sp->tail->decl.name);
f_print(fout, "\t\t\tif (objp == NULL)\n");
f_print(fout, "\t\t\t\tmore_data = FALSE;\n");
f_print(fout, "\t\t\tif (!xdr_bool(xdrs, &more_data))\n"
"\t\t\t\treturn (FALSE);\n");
f_print(fout, "\t\t}\n");
f_print(fout, "\n\t} else {\n");
f_print(fout, "\n\t\twhile (more_data) {\n");
for (dl = sp->decls; dl != NULL && dl != sp->tail; dl = dl->next)
print_stat(indent, &dl->decl);
f_print(fout, "\t\t\ttmp_%s = objp;\n", defp->def_name);
f_print(fout, "\t\t\tobjp = objp->%s;\n", sp->tail->decl.name);
f_print(fout, "\t\t\tif (objp == NULL)\n");
f_print(fout, "\t\t\t\tmore_data = FALSE;\n");
f_print(fout, "\t\t\tif (!first_objp)\n");
f_print(fout, "\t\t\t\tmem_free(tmp_%s, sizeof (%s));\n",
defp->def_name, defp->def_name);
f_print(fout, "\t\t\telse\n\t\t\t\tfirst_objp = FALSE;\n\t\t}\n");
f_print(fout, "\n\t}\n");
}
static void
emit_struct(definition *def)
{
decl_list *dl = def->def.st.decls;
int can_inline, have_vector;
can_inline = check_inline(dl, inlinelen, &have_vector);
if (have_vector)
f_print(fout, "\tint i;\n");
if (rflag && def->def.st.self_pointer) {
/* Handle tail recursion elimination */
emit_struct_tail_recursion(def, can_inline);
return;
}
if (can_inline) {
f_print(fout, "\n\tif (xdrs->x_op == XDR_ENCODE) {\n");
inline_struct(dl, NULL, PUT, 1);
f_print(fout, "\t\treturn (TRUE);\n\t}"
" else if (xdrs->x_op == XDR_DECODE) {\n");
inline_struct(dl, NULL, GET, 1);
f_print(fout, "\t\treturn (TRUE);\n\t}\n\n");
}
/* now take care of XDR_FREE inline case or the non-inline cases */
for (dl = def->def.st.decls; dl != NULL; dl = dl->next)
print_stat(1, &dl->decl);
}
static void
emit_typedef(definition *def)
{
char *prefix = def->def.ty.old_prefix;
char *type = def->def.ty.old_type;
char *amax = def->def.ty.array_max;
relation rel = def->def.ty.rel;
print_ifstat(1, prefix, type, rel, amax, "objp", def->def_name);
}
static void
print_stat(int indent, declaration *dec)
{
char *prefix = dec->prefix;
char *type = dec->type;
char *amax = dec->array_max;
relation rel = dec->rel;
char name[256];
if (isvectordef(type, rel))
(void) snprintf(name, sizeof (name), "objp->%s", dec->name);
else
(void) snprintf(name, sizeof (name), "&objp->%s", dec->name);
print_ifstat(indent, prefix, type, rel, amax, name, dec->name);
}
static void
emit_inline(int indent, declaration *decl, int flag)
{
switch (decl->rel) {
case REL_ALIAS :
emit_single_in_line(indent, decl, flag, REL_ALIAS);
break;
case REL_VECTOR :
tabify(fout, indent);
f_print(fout, "{\n");
tabify(fout, indent + 1);
f_print(fout, "%s *genp;\n\n", decl->type);
tabify(fout, indent + 1);
f_print(fout,
"for (i = 0, genp = objp->%s;\n", decl->name);
tabify(fout, indent + 2);
f_print(fout, "i < %s; i++) {\n", decl->array_max);
emit_single_in_line(indent + 2, decl, flag, REL_VECTOR);
tabify(fout, indent + 1);
f_print(fout, "}\n");
tabify(fout, indent);
f_print(fout, "}\n");
}
}
static void
emit_inline64(int indent, declaration *decl, int flag)
{
switch (decl->rel) {
case REL_ALIAS :
emit_single_in_line64(indent, decl, flag, REL_ALIAS);
break;
case REL_VECTOR :
tabify(fout, indent);
f_print(fout, "{\n");
tabify(fout, indent + 1);
f_print(fout, "%s *genp;\n\n", decl->type);
tabify(fout, indent + 1);
f_print(fout,
"for (i = 0, genp = objp->%s;\n", decl->name);
tabify(fout, indent + 2);
f_print(fout, "i < %s; i++) {\n", decl->array_max);
emit_single_in_line64(indent + 2, decl, flag, REL_VECTOR);
tabify(fout, indent + 1);
f_print(fout, "}\n");
tabify(fout, indent);
f_print(fout, "}\n");
}
}
static void
emit_single_in_line(int indent, declaration *decl, int flag, relation rel)
{
char *upp_case;
int freed = 0;
tabify(fout, indent);
if (flag == PUT)
f_print(fout, "IXDR_PUT_");
else
if (rel == REL_ALIAS)
f_print(fout, "objp->%s = IXDR_GET_", decl->name);
else
f_print(fout, "*genp++ = IXDR_GET_");
upp_case = upcase(decl->type);
/* hack - XX */
if (strcmp(upp_case, "INT") == 0) {
free(upp_case);
freed = 1;
upp_case = "LONG";
}
if ((strcmp(upp_case, "U_INT") == 0) ||
(strcmp(upp_case, "RPCPROG") == 0) ||
(strcmp(upp_case, "RPCVERS") == 0) ||
(strcmp(upp_case, "RPCPROC") == 0) ||
(strcmp(upp_case, "RPCPROT") == 0) ||
(strcmp(upp_case, "RPCPORT") == 0)) {
free(upp_case);
freed = 1;
upp_case = "U_LONG";
}
if (flag == PUT)
if (rel == REL_ALIAS)
f_print(fout,
"%s(buf, objp->%s);\n", upp_case, decl->name);
else
f_print(fout, "%s(buf, *genp++);\n", upp_case);
else
f_print(fout, "%s(buf);\n", upp_case);
if (!freed)
free(upp_case);
}
static void
emit_single_in_line64(int indent, declaration *decl, int flag, relation rel)
{
char *upp_case;
int freed = 0;
tabify(fout, indent);
if (flag == PUT)
f_print(fout, "IXDR_PUT_");
else
if (rel == REL_ALIAS)
f_print(fout, "objp->%s = IXDR_GET_", decl->name);
else
f_print(fout, "*genp++ = IXDR_GET_");
upp_case = upcase(decl->type);
/* hack - XX */
if ((strcmp(upp_case, "INT") == 0)||(strcmp(upp_case, "LONG") == 0)) {
free(upp_case);
freed = 1;
upp_case = "INT32";
}
if ((strcmp(upp_case, "U_INT") == 0) ||
(strcmp(upp_case, "U_LONG") == 0) ||
(strcmp(upp_case, "RPCPROG") == 0) ||
(strcmp(upp_case, "RPCVERS") == 0) ||
(strcmp(upp_case, "RPCPROC") == 0) ||
(strcmp(upp_case, "RPCPROT") == 0) ||
(strcmp(upp_case, "RPCPORT") == 0)) {
free(upp_case);
freed = 1;
upp_case = "U_INT32";
}
if (flag == PUT)
if (rel == REL_ALIAS)
f_print(fout,
"%s(buf, objp->%s);\n", upp_case, decl->name);
else
f_print(fout, "%s(buf, *genp++);\n", upp_case);
else
f_print(fout, "%s(buf);\n", upp_case);
if (!freed)
free(upp_case);
}
static char *
upcase(char *str)
{
char *ptr, *hptr;
ptr = malloc(strlen(str)+1);
if (ptr == NULL) {
f_print(stderr, "malloc failed\n");
exit(1);
};
hptr = ptr;
while (*str != '\0')
*ptr++ = toupper(*str++);
*ptr = '\0';
return (hptr);
}