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author | Mystery Man <unknown@mandriva.org> | 2003-08-20 07:37:27 +0000 |
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committer | Mystery Man <unknown@mandriva.org> | 2003-08-20 07:37:27 +0000 |
commit | 7f2ac73888b8ef372ea597049981b27e7d810ac2 (patch) | |
tree | 354132889b63bbe5f446cb82869b3c3367135a80 /mdk-stage1/dietlibc/libugly/openpty.c | |
parent | 327bd24f8e4291bd1882de1990dd7339f781a9cb (diff) | |
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This commit was manufactured by cvs2svn to create branch 'MDKC_1_0'.topic/MDKC_1_0
Diffstat (limited to 'mdk-stage1/dietlibc/libugly/openpty.c')
-rw-r--r-- | mdk-stage1/dietlibc/libugly/openpty.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libugly/openpty.c b/mdk-stage1/dietlibc/libugly/openpty.c new file mode 100644 index 000000000..8d06f329c --- /dev/null +++ b/mdk-stage1/dietlibc/libugly/openpty.c @@ -0,0 +1,54 @@ +#include <unistd.h> +#include <pty.h> +#include <fcntl.h> +#include <termios.h> +#include <sys/ioctl.h> +#include <errno.h> +#include <string.h> + +extern int __ltostr(char *s, int size, unsigned long i, int base, char UpCase); + +int openpty(int *amaster, int *aslave, char *name, struct termios + *termp, struct winsize *winp) { + int fd; + char buf[20]; +#if 0 + This is what glibc does: + open("/dev/ptmx", O_RDWR) = 4 + statfs("/dev/pts", {f_type=0x1cd1, f_bsize=1024, f_blocks=0, f_bfree=0, f_files=0, f_ffree=0, f_namelen=255}) = 0 + ioctl(4, TCGETS, {B38400 opost isig icanon echo ...}) = 0 + ioctl(4, 0x80045430, [0]) = 0 + stat("/dev/pts/0", {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0 + statfs("/dev/pts/0", {f_type=0x1cd1, f_bsize=1024, f_blocks=0, f_bfree=0, f_files=0, f_ffree=0, f_namelen=255}) = 0 + ioctl(4, 0x40045431, [0]) = 0 + ioctl(4, TCGETS, {B38400 opost isig icanon echo ...}) = 0 + ioctl(4, 0x80045430, [0]) = 0 + stat("/dev/pts/0", {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0 + open("/dev/pts/0", O_RDWR|O_NOCTTY) = 5 +#endif + if ((fd=open("/dev/ptmx",O_RDWR))<0) return -1; +#if 0 + if (ioctl(fd,TCGETS,&ts)<0) goto kaputt; +#endif + { + int unlock=0; + while (ioctl(fd,TIOCSPTLCK, &unlock)<0) if (errno!=EINTR) goto kaputt; + } + { + int ptyno; + while (ioctl(fd,TIOCGPTN,&ptyno)<0) if (errno!=EINTR) goto kaputt; + strcpy(buf,"/dev/pts/"); + __ltostr(buf+9,10,ptyno,10,0); + } + *aslave=open(buf,O_RDWR|O_NOCTTY); + if (*aslave<0) goto kaputt; + *amaster=fd; + if (name) strcpy(name,buf); + if (termp) + while (tcsetattr(*aslave,TCSAFLUSH,termp) && errno==EINTR); + if (winp) while (ioctl(*aslave, TIOCSWINSZ, winp) && errno==EINTR); + return 0; +kaputt: + close(fd); + return -1; +} |