| 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 | #ifdef BASH_BUILTIN |
| 10 | #include "bash/config.h" |
| 11 | #include "bash/shell.h" |
| 12 | #include "bash/builtins.h" |
| 13 | #include "bash/builtins/common.h" |
| 14 | #include "bash/builtins/bashgetopt.h" |
| 15 | #endif |
| 16 | |
| 17 | #ifdef BASH_BUILTIN |
| 18 | int xtitle_builtin(WORD_LIST *list) |
| 19 | #else |
| 20 | int main(int argc, char *argv[]) |
| 21 | #endif |
| 22 | { |
| 23 | int query = 0; |
| 24 | int fd; |
| 25 | int openned = 0; |
| 26 | |
| 27 | #ifdef BASH_BUILTIN |
| 28 | reset_internal_getopt(); |
| 29 | #endif |
| 30 | for (;;) { |
| 31 | #ifdef BASH_BUILTIN |
| 32 | int i; |
| 33 | i = internal_getopt(list, "q"); |
| 34 | #else |
| 35 | int i = getopt(argc, argv, "q"); |
| 36 | #endif |
| 37 | if (i < 0) |
| 38 | break; |
| 39 | switch (i) { |
| 40 | case 'q': |
| 41 | query = 1; |
| 42 | break; |
| 43 | default: |
| 44 | #ifdef BASH_BUILTIN |
| 45 | builtin_usage(); |
| 46 | #else |
| 47 | fprintf(stderr, "usage: xtitle [-q] [string]\n"); |
| 48 | #endif |
| 49 | return (1); |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | #ifdef BASH_BUILTIN |
| 54 | if (!query && loptend == 0) { |
| 55 | #else |
| 56 | if (!query && optind == argc) { |
| 57 | #endif |
| 58 | fprintf(stderr, "xtitle: no string to set\n"); |
| 59 | return (1); |
| 60 | } |
| 61 | |
| 62 | { |
| 63 | char *t = getenv("TERM"); |
| 64 | if (!t || strncmp(t, "xterm", 5)) |
| 65 | return (0); |
| 66 | } |
| 67 | |
| 68 | if (isatty(0)) |
| 69 | fd = 0; |
| 70 | else { |
| 71 | fd = open("/dev/tty", O_RDWR); |
| 72 | if (fd < 0) { |
| 73 | fprintf(stderr, "xtitle: couldn't open terminal: %s", strerror(errno)); |
| 74 | return (1); |
| 75 | } |
| 76 | openned = 1; |
| 77 | } |
| 78 | |
| 79 | if (!query) { |
| 80 | #ifdef BASH_BUILTIN |
| 81 | WORD_LIST *l = loptend; |
| 82 | char sp = ' '; |
| 83 | write(fd, "\33]0;", 4); |
| 84 | while (l) { |
| 85 | write(fd, l->word->word, strlen(l->word->word)); |
| 86 | if (l->next) |
| 87 | write(fd, &sp, 1); |
| 88 | l = l->next; |
| 89 | } |
| 90 | write(fd, "\7", 2); |
| 91 | #else |
| 92 | int i; |
| 93 | char sp = ' '; |
| 94 | write(fd, "\33]0;", 4); |
| 95 | for (i = optind; i < argc; i++) { |
| 96 | write(fd, argv[i], strlen(argv[i])); |
| 97 | if (i < argc - 1) |
| 98 | write(fd, &sp, 1); |
| 99 | } |
| 100 | write(fd, "\7", 2); |
| 101 | #endif |
| 102 | } else { |
| 103 | struct termios o, n; |
| 104 | char hack; |
| 105 | int state = 0; |
| 106 | |
| 107 | tcgetattr(fd, &o); |
| 108 | n = o; |
| 109 | n.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 110 | |INLCR|IGNCR|ICRNL|IXON); |
| 111 | n.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); |
| 112 | n.c_cflag &= ~(CSIZE|PARENB); |
| 113 | n.c_cflag |= CS8; |
| 114 | tcsetattr(fd, TCSAFLUSH, &n); |
| 115 | write(fd, "\33[21t", 5); |
| 116 | |
| 117 | while (state != -1) { |
| 118 | if (read(fd, &hack, 1) < 1) |
| 119 | break; |
| 120 | switch (state) { |
| 121 | case 0: |
| 122 | if (hack == '\33') state = 1; |
| 123 | break; |
| 124 | case 1: |
| 125 | if (hack == ']') state = 2; else state = 0; |
| 126 | break; |
| 127 | case 2: |
| 128 | if (hack == 'l') state = 3; else state = 0; |
| 129 | break; |
| 130 | case 3: |
| 131 | if (hack == '\33') state = 4; else putchar(hack); |
| 132 | break; |
| 133 | case 4: |
| 134 | if (hack == '\\') { state = -1; putchar('\n'); } |
| 135 | else { putchar('\33'); putchar(hack); state = 3; } |
| 136 | break; |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | tcsetattr(fd, TCSAFLUSH, &o); |
| 141 | } |
| 142 | |
| 143 | if (openned) |
| 144 | close(fd); |
| 145 | |
| 146 | return (0); |
| 147 | } |
| 148 | |
| 149 | |
| 150 | #ifdef BASH_BUILTIN |
| 151 | |
| 152 | static char *xtitle_doc[] = { |
| 153 | "Either set or read the title of the current xterm window. With the", |
| 154 | "-q option, writes the current xterm title to standard output. Without", |
| 155 | "the -q option, sets the xterm title to be the arguments given,", |
| 156 | "separated by space characters. [By Mark Wooding, mdw@nsict.org]", |
| 157 | 0 |
| 158 | }; |
| 159 | |
| 160 | struct builtin xtitle_struct = { |
| 161 | "xtitle", |
| 162 | xtitle_builtin, |
| 163 | BUILTIN_ENABLED, |
| 164 | xtitle_doc, |
| 165 | "xtitle [-q] [arguments]", |
| 166 | 0 |
| 167 | }; |
| 168 | |
| 169 | #endif |