| 1 | #include <errno.h> |
| 2 | #include <unistd.h> |
| 3 | #include <termios.h> |
| 4 | #include <stdio.h> |
| 5 | #include <stdlib.h> |
| 6 | #include <string.h> |
| 7 | #include <fcntl.h> |
| 8 | |
| 9 | int main(int argc, char *argv[]) |
| 10 | { |
| 11 | int query = 0; |
| 12 | int fd; |
| 13 | int openned = 0; |
| 14 | int i; |
| 15 | |
| 16 | for (;;) { |
| 17 | i = getopt(argc, argv, "q"); |
| 18 | if (i < 0) |
| 19 | break; |
| 20 | switch (i) { |
| 21 | case 'q': |
| 22 | query = 1; |
| 23 | break; |
| 24 | default: |
| 25 | fprintf(stderr, "usage: xtitle [-q] [STRING]\n"); |
| 26 | return (1); |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | if (!query && optind == argc) { |
| 31 | fprintf(stderr, "xtitle: no string to set\n"); |
| 32 | return (1); |
| 33 | } |
| 34 | |
| 35 | { |
| 36 | char *t = getenv("TERM"); |
| 37 | if (!t || strncmp(t, "xterm", 5)) |
| 38 | return (0); |
| 39 | } |
| 40 | |
| 41 | if (isatty(0)) |
| 42 | fd = 0; |
| 43 | else { |
| 44 | fd = open("/dev/tty", O_RDWR); |
| 45 | if (fd < 0) { |
| 46 | fprintf(stderr, "xtitle: couldn't open terminal: %s", strerror(errno)); |
| 47 | return (1); |
| 48 | } |
| 49 | openned = 1; |
| 50 | } |
| 51 | |
| 52 | if (!query) { |
| 53 | char sp = ' '; |
| 54 | write(fd, "\33]0;", 4); |
| 55 | for (i = optind; i < argc; i++) { |
| 56 | write(fd, argv[i], strlen(argv[i])); |
| 57 | if (i < argc - 1) |
| 58 | write(fd, &sp, 1); |
| 59 | } |
| 60 | write(fd, "\7", 2); |
| 61 | } else { |
| 62 | struct termios o, n; |
| 63 | char hack; |
| 64 | int state = 0; |
| 65 | |
| 66 | tcgetattr(fd, &o); |
| 67 | n = o; |
| 68 | n.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 69 | |INLCR|IGNCR|ICRNL|IXON); |
| 70 | n.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
| 71 | n.c_cflag &= ~(CSIZE|PARENB); |
| 72 | n.c_cflag |= CS8; |
| 73 | tcsetattr(fd, TCSAFLUSH, &n); |
| 74 | write(fd, "\33[21t", 5); |
| 75 | |
| 76 | while (state != -1) { |
| 77 | if (read(fd, &hack, 1) < 1) |
| 78 | break; |
| 79 | switch (state) { |
| 80 | case 0: |
| 81 | if (hack == '\33') state = 1; |
| 82 | break; |
| 83 | case 1: |
| 84 | if (hack == ']') state = 2; else state = 0; |
| 85 | break; |
| 86 | case 2: |
| 87 | if (hack == 'l') state = 3; else state = 0; |
| 88 | break; |
| 89 | case 3: |
| 90 | if (hack == '\33') state = 4; else putchar(hack); |
| 91 | break; |
| 92 | case 4: |
| 93 | if (hack == '\\') { state = -1; putchar('\n'); } |
| 94 | else { putchar('\33'); putchar(hack); state = 3; } |
| 95 | break; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | tcsetattr(fd, TCSAFLUSH, &o); |
| 100 | } |
| 101 | |
| 102 | if (openned) |
| 103 | close(fd); |
| 104 | |
| 105 | return (0); |
| 106 | } |