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#include <pwd.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <paths.h>
#include <string.h>
#include "parselib.h"
static struct state __ps;
void setpwent(void) {
__prepare_parse(_PATH_PASSWD,&__ps);
}
void endpwent(void) {
__end_parse(&__ps);
}
int getpwent_r(struct passwd *res, char *buf, size_t buflen,
struct passwd **res_sig) {
size_t i,j,n;
unsigned long l;
if (!__ps.buffirst) setpwent();
if (!__ps.buffirst) goto error;
if (__ps.cur>=__ps.buflen) goto error;
again:
n=0;
for (i=0; i<7; ++i) {
j=__parse_1(&__ps,':');
if (__ps.buffirst[__ps.cur+j]!=':' && i<6) {
parseerror:
while (__ps.cur+j<__ps.buflen) {
if (__ps.buffirst[__ps.cur+j]=='\n') {
__ps.cur+=j+1;
goto again;
}
++j;
}
}
switch (i) {
case 0:
res->pw_name=buf+n;
copy:
if ((size_t)buflen<=n+j) goto error;
memcpy(buf+n,__ps.buffirst+__ps.cur,j);
buf[n+j]=0;
n+=j+1;
break;
case 1: res->pw_passwd=buf+n; goto copy;
case 4: res->pw_gecos=buf+n; goto copy;
case 5: res->pw_dir=buf+n; goto copy;
case 6: res->pw_shell=buf+n; goto copy;
case 2:
case 3:
if (scan_ulong(__ps.buffirst+__ps.cur,&l)!=j) goto parseerror;
if (i==2) res->pw_uid=l; else res->pw_gid=l;
break;
}
__ps.cur+=j+1;
}
*res_sig=res;
return 0;
error:
*res_sig=0;/* the glibc people should be taken behind the barn and shot */
return -1;
}
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