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libc: getlogin should not query fd directly

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This commit is contained in:
K. Lange 2018-10-31 11:30:17 +09:00
parent be97496bed
commit 0762fb30ce
1 changed files with 4 additions and 1 deletions
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5
libc/unistd/getlogin.c
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@ -20,9 +20,12 @@ char * getlogin(void) {
}
}
char * name = ttyname(tty);
if (!name) return NULL;
/* Get the owner */
struct stat statbuf;
fstat(tty, &statbuf);
stat(name, &statbuf);
struct passwd * passwd = getpwuid(statbuf.st_uid);