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freebsd-ports/archivers/arc/files/patch-ac

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--- ./marc.c.orig Tue Apr 14 18:59:21 1992
+++ ./marc.c Wed Aug 11 10:22:31 1999
@@ -28,12 +28,17 @@
#if UNIX
#include <sys/types.h>
#include <sys/stat.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <err.h>
#endif
#ifndef __STDC__
char *calloc(), *malloc(), *realloc(); /* memory managers */
#endif
VOID arcdie();
+int move(),setstamp();
static VOID expandlst(), merge();
FILE *src; /* source archive */
@@ -50,7 +55,7 @@
char *makefnam(); /* filename fixup routine */
char *envfind();
#if !_MTS
- char *arctemp2, *mktemp(); /* temp file stuff */
+ char *arctemp2; /* temp file stuff */
#endif
#if GEMDOS
VOID exitpause();
@@ -114,8 +119,18 @@
#endif
#if !MSDOS
{
- static char tempname[] = "AXXXXXX";
- strcat(arctemp, mktemp(tempname));
+ static char tempname[] = "AXXXXXX.arc";
+ int fd=-1;
+ strcat(arctemp, tempname);
+ if((fd = mkstemps(arctemp,4)) == -1 ||
+ (new = fdopen(fd, "w+")) == NULL) {
+ if (fd != -1) {
+ unlink(arctemp);
+ close(fd);
+ }
+ err(1, "can't create temp file %s", arctemp);
+ }
+
}
#else
strcat(arctemp, "$ARCTEMP");
@@ -148,8 +163,10 @@
arc = fopen(arcname,OPEN_R); /* open the archives */
if(!(src=fopen(srcname,OPEN_R)))
arcdie("Cannot read source archive %s",srcname);
+#if !defined(__OpenBSD__) && !defined(__FreeBSD__) /* this is insecure, see mkstemp(3) */
if(!(new=fopen(newname,OPEN_W)))
arcdie("Cannot create new archive %s",newname);
+#endif
if(!arc)
printf("Creating new archive %s\n",arcname);
@@ -283,7 +300,7 @@
else return 0; /* or fake end of archive */
}
-copyfile(f,hdr,ver) /* copy a file from an archive */
+int copyfile(f,hdr,ver) /* copy a file from an archive */
FILE *f; /* archive to copy from */
struct heads *hdr; /* header data for file */
int ver; /* header version */