/* Write an entry to the given stream.
This must know the format of the group file. */
int
putsgent (const struct sgrp *g, FILE *stream)
{
int errors = 0;
if (g->sg_namp == NULL || !__nss_valid_field (g->sg_namp)
|| !__nss_valid_field (g->sg_passwd)
|| !__nss_valid_list_field (g->sg_adm)
|| !__nss_valid_list_field (g->sg_mem))
{
__set_errno (EINVAL);
return -1;
}
_IO_flockfile (stream);
if (fprintf (stream, "%s:%s:", g->sg_namp, _S (g->sg_passwd)) < 0)
++errors;
bool first = true;
char **sp = g->sg_adm;
if (sp != NULL)
while (*sp != NULL)
{
if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0)
{
++errors;
break;
}
first = false;
}
if (putc_unlocked (':', stream) == EOF)
++errors;
first = true;
sp = g->sg_mem;
if (sp != NULL)
while (*sp != NULL)
{
if (fprintf (stream, "%s%s", first ? "" : ",", *sp++) < 0)
{
++errors;
break;
}
first = false;
}
if (putc_unlocked ('\n', stream) == EOF)
++errors;
_IO_funlockfile (stream);
return errors ? -1 : 0;
}
/* Write an entry to the given stream.
This must know the format of the group file. */
int
putgrent (const struct group *gr, FILE *stream)
{
int retval;
if (__glibc_unlikely (gr == NULL) || __glibc_unlikely (stream == NULL)
|| gr->gr_name == NULL || !__nss_valid_field (gr->gr_name)
|| !__nss_valid_field (gr->gr_passwd)
|| !__nss_valid_list_field (gr->gr_mem))
{
__set_errno (EINVAL);
return -1;
}
flockfile (stream);
if (gr->gr_name[0] == '+' || gr->gr_name[0] == '-')
retval = fprintf (stream, "%s:%s::",
gr->gr_name, _S (gr->gr_passwd));
else
retval = fprintf (stream, "%s:%s:%lu:",
gr->gr_name, _S (gr->gr_passwd),
(unsigned long int) gr->gr_gid);
if (__builtin_expect (retval, 0) < 0)
{
funlockfile (stream);
return -1;
}
if (gr->gr_mem != NULL)
{
for (size_t i = 0; gr->gr_mem[i] != NULL; i++)
if (fprintf (stream, i == 0 ? "%s" : ",%s", gr->gr_mem[i]) < 0)
{
/* What else can we do? */
funlockfile (stream);
return -1;
}
}
retval = fputc_unlocked ('\n', stream);
funlockfile (stream);
return retval < 0 ? -1 : 0;
}
