1 files changed, 87 insertions, 0 deletions
diff --git a/packages/google-compute-engine-oslogin/nss_module/compat/getpwent_r.c b/packages/google-compute-engine-oslogin/nss_module/compat/getpwent_r.c
new file mode 100644
index 0000000..b1be6fc
--- /dev/null
+++ b/packages/google-compute-engine-oslogin/nss_module/compat/getpwent_r.c
@@ -0,0 +1,87 @@
+/*
+ * ----------------------------------------------------------------------
+ *  Copyright © 2005-2014 Rich Felker, et al.
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining
+ *  a copy of this software and associated documentation files (the
+ *  "Software"), to deal in the Software without restriction, including
+ *  without limitation the rights to use, copy, modify, merge, publish,
+ *  distribute, sublicense, and/or sell copies of the Software, and to
+ *  permit persons to whom the Software is furnished to do so, subject to
+ *  the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be
+ *  included in all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ *  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ *  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ *  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ *  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *  ----------------------------------------------------------------------
+ *
+ *  Adapted from http://www.musl-libc.org/ for libnss-cache
+ *  Copyright © 2015 Kevin Bowling <k@kev009.com>
+ */
+
+#include <sys/param.h>
+
+#ifdef BSD
+
+#include <pwd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+static unsigned atou(char **s)
+{
+	unsigned x;
+	for (x=0; **s-'0'<10U; ++*s) x=10*x+(**s-'0');
+	return x;
+}
+
+int fgetpwent_r(FILE *f, struct passwd *pw, char *line, size_t size, struct passwd **res)
+{
+	char *s;
+	int rv = 0;
+	for (;;) {
+		line[size-1] = '\xff';
+		if ( (fgets(line, size, f) == NULL) || ferror(f) || line[size-1] != '\xff' ) {
+			rv = (line[size-1] != '\xff') ? ERANGE : ENOENT;
+			line = 0;
+			pw = 0;
+			break;
+		}
+		line[strcspn(line, "\n")] = 0;
+
+		s = line;
+		pw->pw_name = s++;
+		if (!(s = strchr(s, ':'))) continue;
+
+		*s++ = 0; pw->pw_passwd = s;
+		if (!(s = strchr(s, ':'))) continue;
+
+		*s++ = 0; pw->pw_uid = atou(&s);
+		if (*s != ':') continue;
+
+		*s++ = 0; pw->pw_gid = atou(&s);
+		if (*s != ':') continue;
+
+		*s++ = 0; pw->pw_gecos = s;
+		if (!(s = strchr(s, ':'))) continue;
+
+		*s++ = 0; pw->pw_dir = s;
+		if (!(s = strchr(s, ':'))) continue;
+
+		*s++ = 0; pw->pw_shell = s;
+		break;
+	}
+	*res = pw;
+	if (rv) errno = rv;
+	return rv;
+}
+
+#endif // ifdef BSD