diff options
Diffstat (limited to 'terms.c')
| -rw-r--r-- | terms.c | 41 |
1 files changed, 25 insertions, 16 deletions
@@ -489,31 +489,40 @@ get_pixel_per_cell(int *ppc, int *ppl) fd_set rfd; struct timeval tval; char buf[100]; + char *p; ssize_t len; + ssize_t left; int wp,hp,wc,hc; + int i; fputs("\x1b[14t\x1b[18t",ttyf); flush_tty(); - tval.tv_usec = 10000; /* 0.1 sec */ - tval.tv_sec = 0; - FD_SET(tty,&rfd); - if (select(tty+1,&rfd,NULL,NULL,&tval) < 0 || ! FD_ISSET(tty,&rfd)) { - return 0; - } + p = buf; + left = sizeof(buf) - 1; + for (i = 0; i < 5; i++) { + tval.tv_usec = 100000; /* 0.1 sec */ + tval.tv_sec = 0; + FD_SET(tty,&rfd); + if (select(tty+1,&rfd,NULL,NULL,&tval) <= 0 || ! FD_ISSET(tty,&rfd)) { + continue; + } - if ((len = read(tty,buf,sizeof(buf)-1)) <= 0) { - return 0; - } - buf[len] = '\0'; + if ((len = read(tty,p,left)) <= 0) { + return 0; + } + p[len] = '\0'; - if (sscanf(buf,"\x1b[4;%d;%dt\x1b[8;%d;%dt",&hp,&wp,&hc,&wc) != 4) { - return 0; - } + if (sscanf(buf,"\x1b[4;%d;%dt\x1b[8;%d;%dt",&hp,&wp,&hc,&wc) == 4) { + *ppc = wp / wc; + *ppl = hp / hc; - *ppc = wp / wc; - *ppl = hp / hc; + return 1; + } + p = buf + len; + left -= len; + } - return 1; + return 0; } #ifdef USE_MOUSE |