diff options
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | da.c | 43 | ||||
| -rw-r--r-- | safetitle.c | 1 |
3 files changed, 44 insertions, 1 deletions
@@ -1,6 +1,7 @@ CFLAGS += -O2 -pedantic -Wall -Wextra safetitle: safetitle.c +da: da.c install: install safetitle /usr/local/bin @@ -0,0 +1,43 @@ +/* + * da prints the device attributes of the current terminal + * to standard output as a string of comma-separated integers. + * + * If run inside GNU screen, it will print the device attributes + * of GNU screen itself and not those of the real terminal. + */ + +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <termios.h> +#include <unistd.h> + +int +main() +{ + char c; + int r, ttyfd; + struct termios term, restore; + + if((ttyfd = open("/dev/tty", O_RDWR))==-1) + err(1, "open"); + + tcgetattr(ttyfd, &restore); + tcgetattr(ttyfd, &term); + term.c_lflag &= ~(ICANON|ECHO); + tcsetattr(ttyfd, TCSANOW, &term); + + write(ttyfd, "\033[>c", 4); + while(r = read(ttyfd, &c, 1)){ + if(r==-1){ + warn("read"); + goto end; + } + if(c=='c') break; + printf("%d,", c); + } + printf("99\n"); + +end: + tcsetattr(ttyfd, TCSANOW, &restore); +} diff --git a/safetitle.c b/safetitle.c index a926264..bf302d3 100644 --- a/safetitle.c +++ b/safetitle.c @@ -6,7 +6,6 @@ * the title is not set. It is theoretically possible to check every * terminal too see if it is recognized and, if so, set the title -- * but that would make the code more complex. - * */ #include <err.h> |