add put*ent functions for passwd/group files and similar for shadow

[musl] / src / passwd / putgrent.c

diff --git a/src/passwd/putgrent.c b/src/passwd/putgrent.c
new file mode 100644 (file)
index 0000000..d7847b1
--- /dev/null
+++ b/src/passwd/putgrent.c
@@ -0,0 +1,14 @@
+#include <grp.h>
+#include <stdio.h>
+
+int putgrent(const struct group *gr, FILE *f)
+{
+       int r;
+       size_t i;
+       flockfile(f);
+       r = fprintf(f, "%s:%s:%d:", gr->gr_name, gr->gr_passwd, gr->gr_gid);
+       if (gr->gr_mem) for (i=0; gr->gr_mem[i]; i++)
+               if (fprintf(f, "%s%s", i?",":"", gr->gr_mem[i])<0) r = -1;
+       funlockfile(f);
+       return r<0 ? -1 : 0;
+}