util.c (1700B)
1 /* 2 * Copyright (c) 2018-2023 Jan Klemkow <j.klemkow@wemelug.de> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include <stdarg.h> 18 #include <stdbool.h> 19 #include <stdio.h> 20 #include <stdlib.h> 21 #include <string.h> 22 #include <unistd.h> 23 24 void 25 die(const char *fmt, ...) 26 { 27 va_list ap; 28 29 va_start(ap, fmt); 30 vfprintf(stderr, fmt, ap); 31 va_end(ap); 32 33 if (fmt[0] && fmt[strlen(fmt)-1] == ':') { 34 fputc(' ', stderr); 35 perror(NULL); 36 } else { 37 fputc('\n', stderr); 38 } 39 40 exit(EXIT_FAILURE); 41 } 42 43 bool 44 bell_match(const char *str, const char *regex_file) 45 { 46 FILE *fh = NULL; 47 char cmd[BUFSIZ]; 48 49 if (access(regex_file, R_OK) == -1) 50 return true; 51 52 snprintf(cmd, sizeof cmd, "exec grep -qf %s", regex_file); 53 54 if ((fh = popen(cmd, "w")) == NULL) 55 die("popen:"); 56 57 if (fputs(str, fh) == EOF) 58 die("fputs:"); 59 60 if (pclose(fh) == 0) 61 return true; 62 63 return false; 64 } 65 66 void 67 set_title(const char *term, char *title) 68 { 69 if (strncmp(term, "screen", 6) == 0) 70 printf("\033k%s\033\\", title); 71 else 72 printf("\033]0;%s\a", title); 73 }