63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
#define _GNU_SOURCE
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <malloc.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdarg.h>
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static void fix_display(void)
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{
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setenv("DISPLAY", ":0", 1);
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}
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static void produce_message(const char * type, const char *fmt, va_list args)
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{
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char *dialog_msg;
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char buf[1024];
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(void) vsnprintf(buf, sizeof(buf), fmt, args);
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if (asprintf(&dialog_msg, "%s: %s: %s (error type: %s)",
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program_invocation_short_name, type, buf, strerror(errno)) < 0) {
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fprintf(stderr, "Failed to allocate memory for error message :(\n");
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return;
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}
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fprintf(stderr, "%s\n", dialog_msg);
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switch (fork()) {
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case -1:
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exit(1); //what else
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case 0:
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if (geteuid() == 0)
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if (setuid(getuid()) != 0)
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perror("setuid failed, calling kdialog/zenity as root");
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fix_display();
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#ifdef USE_KDIALOG
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execlp("/usr/bin/kdialog", "kdialog", "--sorry", dialog_msg, NULL);
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#else
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execlp("/usr/bin/zenity", "zenity", "--error", "--text", dialog_msg, NULL);
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#endif
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exit(1);
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default:;
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}
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free(dialog_msg);
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}
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void gui_fatal(const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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produce_message("Fatal error", fmt, args);
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va_end(args);
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exit(1);
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}
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void gui_nonfatal(const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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produce_message("Information", fmt, args);
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va_end(args);
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}
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