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Index: head/usr.sbin/crunch/crunchgen/crunchgen.c
===================================================================
--- head/usr.sbin/crunch/crunchgen/crunchgen.c
+++ head/usr.sbin/crunch/crunchgen/crunchgen.c
@@ -39,10 +39,13 @@
#include <ctype.h>
#include <err.h>
+#include <fcntl.h>
#include <paths.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sysexits.h>
#include <unistd.h>
#define CRUNCH_VERSION "0.2"
@@ -91,6 +94,7 @@
char confname[MAXPATHLEN], infilename[MAXPATHLEN];
char outmkname[MAXPATHLEN], outcfname[MAXPATHLEN], execfname[MAXPATHLEN];
char tempfname[MAXPATHLEN], cachename[MAXPATHLEN], curfilename[MAXPATHLEN];
+bool tempfname_initialized = false;
char outhdrname[MAXPATHLEN] ; /* user-supplied header for *.mk */
char *objprefix; /* where are the objects ? */
char *path_make;
@@ -216,6 +220,7 @@
snprintf(cachename, sizeof(cachename), "%s.cache", confname);
snprintf(tempfname, sizeof(tempfname), "%s/crunchgen_%sXXXXXX",
getenv("TMPDIR") ? getenv("TMPDIR") : _PATH_TMP, confname);
+ tempfname_initialized = false;
parse_conf_file();
if (list_mode)
@@ -648,8 +653,7 @@
/* Determine the actual srcdir (maybe symlinked). */
if (p->srcdir) {
- snprintf(line, MAXLINELEN, "cd %s && echo -n `/bin/pwd`",
- p->srcdir);
+ snprintf(line, MAXLINELEN, "cd %s && pwd", p->srcdir);
f = popen(line,"r");
if (!f)
errx(1, "Can't execute: %s\n", line);
@@ -721,14 +725,26 @@
/* discover the objs from the srcdir Makefile */
- if ((fd = mkstemp(tempfname)) == -1) {
- perror(tempfname);
- exit(1);
+ /*
+ * We reuse the same temporary file name for multiple objects. However,
+ * some libc implementations (such as glibc) return EINVAL if there
+ * are no XXXXX characters in the template. This happens after the
+ * first call to mkstemp since the argument is modified in-place.
+ * To avoid this error we use open() instead of mkstemp() after the
+ * call to mkstemp().
+ */
+ if (tempfname_initialized) {
+ if ((fd = open(tempfname, O_CREAT | O_EXCL | O_RDWR, 0600)) == -1) {
+ err(EX_OSERR, "open(%s)", tempfname);
+ }
+ } else if ((fd = mkstemp(tempfname)) == -1) {
+ err(EX_OSERR, "mkstemp(%s)", tempfname);
}
+ tempfname_initialized = true;
if ((f = fdopen(fd, "w")) == NULL) {
- warn("%s", tempfname);
+ warn("fdopen(%s)", tempfname);
goterror = 1;
- return;
+ goto out;
}
if (p->objvar)
objvar = p->objvar;
@@ -763,14 +779,14 @@
if ((f = popen(line, "r")) == NULL) {
warn("submake pipe");
goterror = 1;
- return;
+ goto out;
}
while(fgets(line, MAXLINELEN, f)) {
if (strncmp(line, "OBJS= ", 6)) {
warnx("make error: %s", line);
goterror = 1;
- continue;
+ goto out;
}
cp = line + 6;
@@ -793,7 +809,7 @@
warnx("make error: make returned %d", rc);
goterror = 1;
}
-
+out:
unlink(tempfname);
}

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