diff options
Diffstat (limited to 'mdk-stage1/dietlibc/libcruft/getpass.c')
| -rw-r--r-- | mdk-stage1/dietlibc/libcruft/getpass.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/mdk-stage1/dietlibc/libcruft/getpass.c b/mdk-stage1/dietlibc/libcruft/getpass.c index 3da7cd2b3..2183284b3 100644 --- a/mdk-stage1/dietlibc/libcruft/getpass.c +++ b/mdk-stage1/dietlibc/libcruft/getpass.c @@ -3,30 +3,42 @@ #include <limits.h> #include <fcntl.h> #include <string.h> +#include <errno.h> + +static inline int _tcsetattr(int fd,int optional,struct termios *termios_p) { + int tmp; + for (;;) { + if ((tmp=tcsetattr(fd,optional,termios_p))) + if (errno==EINTR) continue; + break; + } + return tmp; +} char *getpass(const char* prompt) { struct termios old,tmp; int out,in=open("/dev/tty",O_RDWR); int doclose=(in>=0); static char buf[PASS_MAX]; - if (doclose) { in=0; out=2; } else out=in; + if (!doclose) { in=0; out=2; } else out=in; if (!tcgetattr(in,&old)) { tmp=old; tmp.c_lflag &= ~(ECHO|ISIG); - tcsetattr(in,TCSAFLUSH,&tmp); + _tcsetattr(in,TCSAFLUSH,&tmp); } write(out,prompt,strlen(prompt)); { int nread,ofs=0; for (;;) { - nread=read(in,buf+ofs,PASS_MAX-ofs); - if (nread<0) { + nread=read(in,buf+ofs,1); + if (nread<=0) { + if (errno==EINTR) continue; buf[ofs]=0; break; } else if (ofs+nread>=PASS_MAX) { buf[PASS_MAX-1]=0; break; - } else if (buf[ofs+nread-1]=='\n') { + } else if (buf[ofs]=='\n') { buf[ofs+nread-1]=0; break; } @@ -34,7 +46,7 @@ char *getpass(const char* prompt) { } write(out,"\n",1); } - tcsetattr(in,TCSAFLUSH,&old); + _tcsetattr(in,TCSAFLUSH,&old); if (doclose) close(in); return buf; } |