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| | #include "pwf.h"
static FILE *f;
void setgrent()
{
if (f) fclose(f);
f = 0;
}
weak_alias(setgrent, endgrent);
struct group *getgrent()
{
static char *line, **mem;
static struct group gr;
size_t size=0, nmem=0;
if (!f) f = fopen("/etc/group", "rbe");
if (!f) return 0;
return __getgrent_a(f, &gr, &line, &size, &mem, &nmem);
}
struct group *getgrgid(gid_t gid)
{
struct group *gr;
int errno_saved;
setgrent();
while ((gr=getgrent()) && gr->gr_gid != gid);
errno_saved = errno;
endgrent();
errno = errno_saved;
return gr;
}
struct group *getgrnam(const char *name)
{
struct group *gr;
int errno_saved;
setgrent();
while ((gr=getgrent()) && strcmp(gr->gr_name, name));
errno_saved = errno;
endgrent();
errno = errno_saved;
return gr;
}
|