+#define _GNU_SOURCE
#include <stdio.h>
-#include <string.h>
#include <termios.h>
#include <unistd.h>
#include <fcntl.h>
+#include <string.h>
char *getpass(const char *prompt)
{
ssize_t l;
static char password[128];
- if ((fd = open("/dev/tty", O_RDONLY|O_NOCTTY)) < 0) fd = 0;
+ if ((fd = open("/dev/tty", O_RDWR|O_NOCTTY|O_CLOEXEC)) < 0) return 0;
tcgetattr(fd, &t);
s = t;
tcsetattr(fd, TCSAFLUSH, &t);
tcdrain(fd);
- fputs(prompt, stderr);
- fflush(stderr);
+ dprintf(fd, "%s", prompt);
l = read(fd, password, sizeof password);
if (l >= 0) {
- if (l > 0 && password[l-1] == '\n') l--;
+ if (l > 0 && password[l-1] == '\n' || l==sizeof password) l--;
password[l] = 0;
}
tcsetattr(fd, TCSAFLUSH, &s);
- if (fd > 2) close(fd);
+ dprintf(fd, "\n");
+ close(fd);
- return password;
+ return l<0 ? 0 : password;
}