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ape: re-implement getlogin() by stating /proc/$pid/status

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This commit is contained in:
cinap_lenrek 2020-12-23 02:32:13 +01:00
parent dced7255ec
commit a7a08647b6
1 changed files with 16 additions and 13 deletions
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29
sys/src/ape/lib/ap/plan9/getlogin.c
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@ -1,21 +1,24 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "lib.h"
#include <unistd.h>
#include <sys/limits.h>
#include <stdlib.h>
#include <stdio.h>
#include "sys9.h"
#include "dir.h"
char *
getlogin_r(char *buf, int len)
getlogin_r(char *user, int len)
{
int f, n;
char name[32];
Dir *dir;
f = open("/dev/user", O_RDONLY);
if(f < 0)
return 0;
n = read(f, buf, len);
buf[len-1] = 0;
close(f);
return (n>=0)? buf : 0;
snprintf(name, sizeof(name), "/proc/%d/status", getpid());
if((dir = _dirstat(name)) == nil){
_syserrno();
return NULL;
}
snprintf(user, len, "%s", dir->uid);
free(dir);
return user;
}
char *