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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 "lib.h"
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h> #include <unistd.h>
#include <sys/limits.h> #include <stdlib.h>
#include <stdio.h>
#include "sys9.h"
#include "dir.h"
char * 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); snprintf(name, sizeof(name), "/proc/%d/status", getpid());
if(f < 0) if((dir = _dirstat(name)) == nil){
return 0; _syserrno();
n = read(f, buf, len); return NULL;
buf[len-1] = 0; }
close(f); snprintf(user, len, "%s", dir->uid);
return (n>=0)? buf : 0; free(dir);
return user;
} }
char * char *