freebsd-dev/lib/libpkg/msg.c
Florent Thoumie 762c7db2e8 - Take libinstall.a out of pkg_install and make it a proper shared library.
- Rework the wrapper support to check libpkg version as well as pkg_install
version.
- Add libfetch to _prebuild_libs.
- There are no new features introduced.

Notes: the API is not stable, so basically, do not use libpkg in your
projects for now. Also there's no manpage for libpkg yet, because the API
will change drastically. I repeat, do not use libpkg for now.
2010-04-23 11:07:43 +00:00

71 lines
1.7 KiB
C

/*
* FreeBSD install - a package for the installation and maintainance
* of non-core utilities.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Jordan K. Hubbard
* 18 July 1993
*
* Miscellaneous message routines.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "pkg.h"
#include <err.h>
#include <paths.h>
/* Die a relatively simple death */
void
upchuck(const char *message)
{
cleanup(0);
errx(1, "fatal error during execution: %s", message);
}
/*
* As a yes/no question, prompting from the varargs string and using
* default if user just hits return.
*/
Boolean
y_or_n(Boolean def, const char *msg, ...)
{
va_list args;
int ch = 0;
FILE *tty;
va_start(args, msg);
/*
* Need to open /dev/tty because file collection may have been
* collected on stdin
*/
tty = fopen(_PATH_TTY, "r");
if (!tty) {
cleanup(0);
errx(2, "can't open %s!", _PATH_TTY);
}
while (ch != 'Y' && ch != 'N') {
vfprintf(stderr, msg, args);
if (def)
fprintf(stderr, " [yes]? ");
else
fprintf(stderr, " [no]? ");
fflush(stderr);
ch = toupper(fgetc(tty));
if (ch == '\n')
ch = (def) ? 'Y' : 'N';
}
fclose(tty) ;
return (ch == 'Y') ? TRUE : FALSE;
}