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diff -aurp checkpassword-0.90-orig/alloc.c checkpassword-0.90/alloc.c
--- checkpassword-0.90-orig/alloc.c 2019-10-18 18:32:45.888000000 +0200
+++ checkpassword-0.90/alloc.c 2019-10-18 18:39:41.820000000 +0200
@@ -1,7 +1,6 @@
+#include <stdlib.h>
#include "alloc.h"
#include "error.h"
-extern char *malloc();
-extern void free();
#define ALIGNMENT 16 /* XXX: assuming that this alignment is enough */
#define SPACE 2048 /* must be multiple of ALIGNMENT */
diff -aurp checkpassword-0.90-orig/checkpassword.c checkpassword-0.90/checkpassword.c
--- checkpassword-0.90-orig/checkpassword.c 2019-10-18 18:32:45.888000000 +0200
+++ checkpassword-0.90/checkpassword.c 2019-10-18 18:42:00.352000000 +0200
@@ -1,3 +1,4 @@
+#include <string.h>
#include <unistd.h>
#include "error.h"
@@ -23,6 +24,7 @@ static struct userpw *upw;
static char up[513];
static int uplen;
+int
main(int argc,char **argv)
{
char *login;
diff -aurp checkpassword-0.90-orig/chkshsgr.c checkpassword-0.90/chkshsgr.c
--- checkpassword-0.90-orig/chkshsgr.c 2019-10-18 18:32:45.888000000 +0200
+++ checkpassword-0.90/chkshsgr.c 2019-10-18 18:38:29.436000000 +0200
@@ -1,5 +1,8 @@
+#include <grp.h>
+#include <unistd.h>
#include "exit.h"
+int
main()
{
short x[4];
diff -aurp checkpassword-0.90-orig/install.c checkpassword-0.90/install.c
--- checkpassword-0.90-orig/install.c 2019-10-18 18:32:45.888000000 +0200
+++ checkpassword-0.90/install.c 2019-10-18 18:43:52.968000000 +0200
@@ -1,3 +1,6 @@
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
#include "buffer.h"
#include "strerr.h"
#include "error.h"
@@ -137,6 +140,7 @@ int mode;
strerr_die6sys(111,FATAL,"unable to chmod .../",subdir,"/",file,": ");
}
+int
main()
{
fdsourcedir = open_read(".");
diff -aurp checkpassword-0.90-orig/instcheck.c checkpassword-0.90/instcheck.c
--- checkpassword-0.90-orig/instcheck.c 2019-10-18 18:32:45.888000000 +0200
+++ checkpassword-0.90/instcheck.c 2019-10-18 18:42:42.428000000 +0200
@@ -101,6 +101,7 @@ int mode;
perm("",home,"/",file,S_IFREG,uid,gid,mode);
}
+int
main()
{
hier();
diff -aurp checkpassword-0.90-orig/pathexec_run.c checkpassword-0.90/pathexec_run.c
--- checkpassword-0.90-orig/pathexec_run.c 2019-10-18 18:32:45.888000000 +0200
+++ checkpassword-0.90/pathexec_run.c 2019-10-18 18:40:42.944000000 +0200
@@ -1,3 +1,4 @@
+#include <unistd.h>
#include "error.h"
#include "stralloc.h"
#include "str.h"
diff -aurp checkpassword-0.90-orig/prot.c checkpassword-0.90/prot.c
--- checkpassword-0.90-orig/prot.c 2019-10-18 18:32:45.888000000 +0200
+++ checkpassword-0.90/prot.c 2019-10-18 18:37:28.668000000 +0200
@@ -1,3 +1,5 @@
+#include <grp.h>
+#include <unistd.h>
#include "hasshsgr.h"
#include "prot.h"
diff -aurp checkpassword-0.90-orig/readwrite.h checkpassword-0.90/readwrite.h
--- checkpassword-0.90-orig/readwrite.h 2019-10-18 18:32:45.888000000 +0200
+++ checkpassword-0.90/readwrite.h 2019-10-18 18:33:59.732000000 +0200
@@ -1,7 +1,6 @@
#ifndef READWRITE_H
#define READWRITE_H
-extern int read();
-extern int write();
+#include <unistd.h>
#endif
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