/*-
* Copyright (c) 2002 Juli Mallett. All rights reserved.
* Copyright (c) 1988, 1989, 1990, 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1989 by Berkeley Softworks
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Adam de Boor.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)main.c 8.3 (Berkeley) 3/19/94
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*-
* util.c --
* General utilitarian routines for make(1).
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <err.h>
#include <errno.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "globals.h"
#include "job.h"
#include "targ.h"
#include "util.h"
static void enomem(void) __dead2;
/*-
* Debug --
* Print a debugging message given its format.
*
* Results:
* None.
*
* Side Effects:
* The message is printed.
*/
/* VARARGS */
void
Debug(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fflush(stderr);
}
/*-
* Print a debugging message given its format and append the current
* errno description. Terminate with a newline.
*/
/* VARARGS */
void
DebugM(const char *fmt, ...)
{
va_list ap;
int e = errno;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
fprintf(stderr, ": %s\n", strerror(e));
va_end(ap);
fflush(stderr);
}
/*-
* Error --
* Print an error message given its format.
*
* Results:
* None.
*
* Side Effects:
* The message is printed.
*/
/* VARARGS */
void
Error(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
fflush(stderr);
}
/*-
* Fatal --
* Produce a Fatal error message. If jobs are running, waits for them
* to finish.
*
* Results:
* None
*
* Side Effects:
* The program exits
*/
/* VARARGS */
void
Fatal(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if (jobsRunning)
Job_Wait();
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
fflush(stderr);
if (DEBUG(GRAPH2))
Targ_PrintGraph(2);
exit(2); /* Not 1 so -q can distinguish error */
}
/*
* Punt --
* Major exception once jobs are being created. Kills all jobs, prints
* a message and exits.
*
* Results:
* None
*
* Side Effects:
* All children are killed indiscriminately and the program Lib_Exits
*/
/* VARARGS */
void
Punt(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
fprintf(stderr, "make: ");
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
fflush(stderr);
DieHorribly();
}
/*-
* DieHorribly --
* Exit without giving a message.
*
* Results:
* None
*
* Side Effects:
* A big one...
*/
void
DieHorribly(void)
{
if (jobsRunning)
Job_AbortAll();
if (DEBUG(GRAPH2))
Targ_PrintGraph(2);
exit(2); /* Not 1, so -q can distinguish error */
}
/*
* Finish --
* Called when aborting due to errors in child shell to signal
* abnormal exit, with the number of errors encountered in Make_Make.
*
* Results:
* None
*
* Side Effects:
* The program exits
*/
void
Finish(int errors)
{
Fatal("%d error%s", errors, errors == 1 ? "" : "s");
}
/*
* emalloc --
* malloc, but die on error.
*/
void *
emalloc(size_t len)
{
void *p;
if ((p = malloc(len)) == NULL)
enomem();
return (p);
}
/*
* estrdup --
* strdup, but die on error.
*/
char *
estrdup(const char *str)
{
char *p;
if ((p = strdup(str)) == NULL)
enomem();
return (p);
}
/*
* erealloc --
* realloc, but die on error.
*/
void *
erealloc(void *ptr, size_t size)
{
if ((ptr = realloc(ptr, size)) == NULL)
enomem();
return (ptr);
}
/*
* enomem --
* die when out of memory.
*/
static void
enomem(void)
{
err(2, NULL);
}
/*
* enunlink --
* Remove a file carefully, avoiding directories.
*/
int
eunlink(const char *file)
{
struct stat st;
if (lstat(file, &st) == -1)
return (-1);
if (S_ISDIR(st.st_mode)) {
errno = EISDIR;
return (-1);
}
return (unlink(file));
}
/*
* Convert a flag word to a printable thing and print it
*/
void
print_flags(FILE *fp, const struct flag2str *tab, u_int flags, int par)
{
int first = 1;
if (par)
fprintf(fp, "(");
while (tab->str != NULL) {
if (flags & tab->flag) {
if (!first)
fprintf(fp, par ? "|" : " ");
first = 0;
fprintf(fp, "%s", tab->str);
}
tab++;
}
if (par)
fprintf(fp, ")");
}
