mirror of
https://github.com/mirror/make.git
synced 2025-03-24 16:50:31 +08:00
38b19976f5
* tests/test_driver.pl: Preserve the LSAN_OPTIONS variable. * tests/scripts/targets/ONESHELL: Don't set a local variable. * tests/scripts/functions/let: Test empty let variable. * src/posixos.c (osync_parse_mutex): Free existing osync_tmpfile. * src/misc.c (get_tmpfd): Set umask() before invoking mkstemp(). * src/ar.c (ar_parse_name): Check invalid name (shouldn't happen). * src/function.c (define_new_function): Free previous function entry when replacing it with a new one. * src/job.c (child_execute_job): Initialize pid for safety. (construct_command_argv_internal): In oneshell mode ensure that the returned argv has the right format (0th element is a pointer to the entire buffer).
977 lines
19 KiB
C
977 lines
19 KiB
C
/* Miscellaneous generic support functions for GNU Make.
|
||
Copyright (C) 1988-2022 Free Software Foundation, Inc.
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||
This file is part of GNU Make.
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||
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||
GNU Make is free software; you can redistribute it and/or modify it under the
|
||
terms of the GNU General Public License as published by the Free Software
|
||
Foundation; either version 3 of the License, or (at your option) any later
|
||
version.
|
||
|
||
GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
|
||
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
||
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License along with
|
||
this program. If not, see <https://www.gnu.org/licenses/>. */
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||
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||
#include "makeint.h"
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||
#include "filedef.h"
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||
#include "dep.h"
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||
#include "os.h"
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||
#include "debug.h"
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||
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||
/* GNU make no longer supports pre-ANSI89 environments. */
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||
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||
#include <stdarg.h>
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||
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||
#ifdef WINDOWS32
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||
# include <windows.h>
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||
# include <io.h>
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||
#endif
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||
|
||
#ifdef HAVE_FCNTL_H
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||
# include <fcntl.h>
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||
#else
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||
# include <sys/file.h>
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||
#endif
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||
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||
unsigned int
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||
make_toui (const char *str, const char **error)
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||
{
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||
char *end;
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||
unsigned long val = strtoul (str, &end, 10);
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||
|
||
if (error)
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||
{
|
||
if (str[0] == '\0')
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||
*error = "Missing value";
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||
else if (*end != '\0')
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||
*error = "Invalid value";
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||
else
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||
*error = NULL;
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||
}
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||
|
||
return val;
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||
}
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||
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||
/* Convert val into a string, written to buf. buf must be large enough
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||
to hold the largest possible value, plus a nul byte. Returns buf.
|
||
We can't use standard PRI* here: those are based on intNN_t types. */
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||
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||
char *
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||
make_lltoa (long long val, char *buf)
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||
{
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||
sprintf (buf, "%" MK_PRI64_PREFIX "d", val);
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||
return buf;
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||
}
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||
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||
char *
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||
make_ulltoa (unsigned long long val, char *buf)
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||
{
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||
sprintf (buf, "%" MK_PRI64_PREFIX "u", val);
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||
return buf;
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||
}
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||
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||
/* Simple random number generator, for use with shuffle.
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||
This doesn't need to be truly random, just pretty random. Use our own
|
||
implementation rather than relying on the C runtime's rand() so we always
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||
get the same results for a given seed, regardless of C runtime. */
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||
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||
static unsigned int mk_state = 0;
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||
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void
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||
make_seed (unsigned int seed)
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||
{
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||
mk_state = seed;
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||
}
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||
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||
unsigned int
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||
make_rand ()
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||
{
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||
/* mk_state must never be 0. */
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||
if (mk_state == 0)
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mk_state = (unsigned int)(time (NULL) ^ make_pid ()) + 1;
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||
|
||
/* A simple xorshift RNG. */
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||
mk_state ^= mk_state << 13;
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||
mk_state ^= mk_state >> 17;
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||
mk_state ^= mk_state << 5;
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||
|
||
return mk_state;
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||
}
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||
|
||
/* Compare strings *S1 and *S2.
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Return negative if the first is less, positive if it is greater,
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zero if they are equal. */
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||
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||
int
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||
alpha_compare (const void *v1, const void *v2)
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||
{
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||
const char *s1 = *((char **)v1);
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||
const char *s2 = *((char **)v2);
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||
|
||
if (*s1 != *s2)
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||
return *s1 - *s2;
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||
return strcmp (s1, s2);
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||
}
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||
|
||
/* Discard each backslash-newline combination from LINE.
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||
Backslash-backslash-newline combinations become backslash-newlines.
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||
This is done by copying the text at LINE into itself. */
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||
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||
void
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||
collapse_continuations (char *line)
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||
{
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||
char *out = line;
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||
char *in = line;
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||
char *q;
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||
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||
q = strchr(in, '\n');
|
||
if (q == 0)
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||
return;
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||
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||
do
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||
{
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||
char *p = q;
|
||
int i;
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||
size_t out_line_length;
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||
|
||
if (q > line && q[-1] == '\\')
|
||
{
|
||
/* Search for more backslashes. */
|
||
i = -2;
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||
while (&p[i] >= line && p[i] == '\\')
|
||
--i;
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||
++i;
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||
}
|
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else
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||
i = 0;
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||
|
||
/* The number of backslashes is now -I, keep half of them. */
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||
out_line_length = (p - in) + i - i/2;
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||
if (out != in)
|
||
memmove (out, in, out_line_length);
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||
out += out_line_length;
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||
|
||
/* When advancing IN, skip the newline too. */
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||
in = q + 1;
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||
|
||
if (i & 1)
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{
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||
/* Backslash/newline handling:
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||
In traditional GNU make all trailing whitespace, consecutive
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backslash/newlines, and any leading non-newline whitespace on the
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next line is reduced to a single space.
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||
In POSIX, each backslash/newline and is replaced by a space. */
|
||
while (ISBLANK (*in))
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||
++in;
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||
if (! posix_pedantic)
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||
while (out > line && ISBLANK (out[-1]))
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||
--out;
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||
*out++ = ' ';
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||
}
|
||
else
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||
{
|
||
/* If the newline isn't quoted, put it in the output. */
|
||
*out++ = '\n';
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||
}
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||
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||
q = strchr(in, '\n');
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||
}
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||
while (q);
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||
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||
memmove(out, in, strlen(in) + 1);
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||
}
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||
/* Print N spaces (used in debug for target-depth). */
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||
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||
void
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||
print_spaces (unsigned int n)
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||
{
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||
while (n-- > 0)
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putchar (' ');
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||
}
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||
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||
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||
/* Return a string whose contents concatenate the NUM strings provided
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||
This string lives in static, re-used memory. */
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||
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||
const char *
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||
concat (unsigned int num, ...)
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||
{
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||
static size_t rlen = 0;
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||
static char *result = NULL;
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||
size_t ri = 0;
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||
va_list args;
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||
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||
va_start (args, num);
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||
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||
while (num-- > 0)
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||
{
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||
const char *s = va_arg (args, const char *);
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size_t l = xstrlen (s);
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||
if (l == 0)
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continue;
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||
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||
if (ri + l > rlen)
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{
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rlen = ((rlen ? rlen : 60) + l) * 2;
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result = xrealloc (result, rlen);
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||
}
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||
memcpy (result + ri, s, l);
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ri += l;
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||
}
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va_end (args);
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||
/* Get some more memory if we don't have enough space for the
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terminating '\0'. */
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if (ri == rlen)
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||
{
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||
rlen = (rlen ? rlen : 60) * 2;
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||
result = xrealloc (result, rlen);
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||
}
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||
result[ri] = '\0';
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||
return result;
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}
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||
#ifndef HAVE_UNISTD_H
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||
pid_t getpid ();
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||
#endif
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||
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||
pid_t make_pid ()
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||
{
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||
return getpid ();
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||
}
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||
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||
/* Like malloc but get fatal error if memory is exhausted. */
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||
/* Don't bother if we're using dmalloc; it provides these for us. */
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||
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||
#ifndef HAVE_DMALLOC_H
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||
#undef xmalloc
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||
#undef xcalloc
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||
#undef xrealloc
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||
#undef xstrdup
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||
|
||
void *
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||
xmalloc (size_t size)
|
||
{
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||
/* Make sure we don't allocate 0, for pre-ISO implementations. */
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||
void *result = malloc (size ? size : 1);
|
||
if (result == 0)
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||
out_of_memory ();
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||
return result;
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||
}
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||
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||
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||
void *
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||
xcalloc (size_t size)
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||
{
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||
/* Make sure we don't allocate 0, for pre-ISO implementations. */
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||
void *result = calloc (size ? size : 1, 1);
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||
if (result == 0)
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||
out_of_memory ();
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||
return result;
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||
}
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||
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||
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||
void *
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||
xrealloc (void *ptr, size_t size)
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||
{
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||
void *result;
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||
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||
/* Some older implementations of realloc() don't conform to ISO. */
|
||
if (! size)
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||
size = 1;
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||
result = ptr ? realloc (ptr, size) : malloc (size);
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||
if (result == 0)
|
||
out_of_memory ();
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||
return result;
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||
}
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||
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||
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||
char *
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||
xstrdup (const char *ptr)
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||
{
|
||
char *result;
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||
|
||
#ifdef HAVE_STRDUP
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||
result = strdup (ptr);
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||
#else
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||
result = malloc (strlen (ptr) + 1);
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||
#endif
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|
||
if (result == 0)
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||
out_of_memory ();
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||
#ifdef HAVE_STRDUP
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||
return result;
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||
#else
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||
return strcpy (result, ptr);
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||
#endif
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||
}
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||
#endif /* HAVE_DMALLOC_H */
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||
char *
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||
xstrndup (const char *str, size_t length)
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||
{
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||
char *result;
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||
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||
#ifdef HAVE_STRNDUP
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||
result = strndup (str, length);
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||
if (result == 0)
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||
out_of_memory ();
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||
#else
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||
result = xmalloc (length + 1);
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||
if (length > 0)
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||
strncpy (result, str, length);
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||
result[length] = '\0';
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||
#endif
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||
return result;
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}
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||
#ifndef HAVE_MEMRCHR
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||
void *
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||
memrchr(const void* str, int ch, size_t len)
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||
{
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||
const char* sp = str;
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||
const char* cp = sp;
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||
|
||
if (len == 0)
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||
return NULL;
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||
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||
cp += len - 1;
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||
|
||
while (cp[0] != ch)
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||
{
|
||
if (cp == sp)
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||
return NULL;
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||
--cp;
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||
}
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||
|
||
return (void*)cp;
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||
}
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||
#endif
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||
|
||
|
||
|
||
/* Limited INDEX:
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||
Search through the string STRING, which ends at LIMIT, for the character C.
|
||
Returns a pointer to the first occurrence, or nil if none is found.
|
||
Like INDEX except that the string searched ends where specified
|
||
instead of at the first null. */
|
||
|
||
char *
|
||
lindex (const char *s, const char *limit, int c)
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||
{
|
||
while (s < limit)
|
||
if (*s++ == c)
|
||
return (char *)(s - 1);
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||
|
||
return 0;
|
||
}
|
||
|
||
/* Return the address of the first whitespace or null in the string S. */
|
||
|
||
char *
|
||
end_of_token (const char *s)
|
||
{
|
||
while (! END_OF_TOKEN (*s))
|
||
++s;
|
||
return (char *)s;
|
||
}
|
||
|
||
/* Return the address of the first nonwhitespace or null in the string S. */
|
||
|
||
char *
|
||
next_token (const char *s)
|
||
{
|
||
NEXT_TOKEN (s);
|
||
return (char *)s;
|
||
}
|
||
|
||
/* Find the next token in PTR; return the address of it, and store the length
|
||
of the token into *LENGTHPTR if LENGTHPTR is not nil. Set *PTR to the end
|
||
of the token, so this function can be called repeatedly in a loop. */
|
||
|
||
char *
|
||
find_next_token (const char **ptr, size_t *lengthptr)
|
||
{
|
||
const char *p = next_token (*ptr);
|
||
|
||
if (*p == '\0')
|
||
return 0;
|
||
|
||
*ptr = end_of_token (p);
|
||
if (lengthptr != 0)
|
||
*lengthptr = *ptr - p;
|
||
|
||
return (char *)p;
|
||
}
|
||
|
||
/* Write a BUFFER of size LEN to file descriptor FD.
|
||
Retry short writes from EINTR. Return LEN, or -1 on error. */
|
||
ssize_t
|
||
writebuf (int fd, const void *buffer, size_t len)
|
||
{
|
||
const char *msg = buffer;
|
||
size_t l = len;
|
||
while (l)
|
||
{
|
||
ssize_t r;
|
||
|
||
EINTRLOOP (r, write (fd, msg, l));
|
||
if (r < 0)
|
||
return r;
|
||
|
||
l -= r;
|
||
msg += r;
|
||
}
|
||
|
||
return (ssize_t)len;
|
||
}
|
||
|
||
/* Read until we get LEN bytes from file descriptor FD, into BUFFER.
|
||
Retry short reads on EINTR. If we get an error, return it.
|
||
Return 0 at EOF. */
|
||
ssize_t
|
||
readbuf (int fd, void *buffer, size_t len)
|
||
{
|
||
char *msg = buffer;
|
||
while (len)
|
||
{
|
||
ssize_t r;
|
||
|
||
EINTRLOOP (r, read (fd, msg, len));
|
||
if (r < 0)
|
||
return r;
|
||
if (r == 0)
|
||
break;
|
||
|
||
len -= r;
|
||
msg += r;
|
||
}
|
||
|
||
return (ssize_t)(msg - (char*)buffer);
|
||
}
|
||
|
||
|
||
/* Copy a chain of 'struct dep'. For 2nd expansion deps, dup the name. */
|
||
|
||
struct dep *
|
||
copy_dep_chain (const struct dep *d)
|
||
{
|
||
struct dep *firstnew = 0;
|
||
struct dep *lastnew = 0;
|
||
|
||
while (d != 0)
|
||
{
|
||
struct dep *c = xmalloc (sizeof (struct dep));
|
||
memcpy (c, d, sizeof (struct dep));
|
||
|
||
if (c->need_2nd_expansion)
|
||
c->name = xstrdup (c->name);
|
||
|
||
c->next = 0;
|
||
if (firstnew == 0)
|
||
firstnew = lastnew = c;
|
||
else
|
||
lastnew = lastnew->next = c;
|
||
|
||
d = d->next;
|
||
}
|
||
|
||
return firstnew;
|
||
}
|
||
|
||
/* Free a chain of struct nameseq.
|
||
For struct dep chains use free_dep_chain. */
|
||
|
||
void
|
||
free_ns_chain (struct nameseq *ns)
|
||
{
|
||
while (ns != 0)
|
||
{
|
||
struct nameseq *t = ns;
|
||
ns = ns->next;
|
||
free_ns (t);
|
||
}
|
||
}
|
||
|
||
|
||
#ifdef MAKE_MAINTAINER_MODE
|
||
|
||
void
|
||
spin (const char* type)
|
||
{
|
||
char filenm[256];
|
||
struct stat dummy;
|
||
|
||
sprintf (filenm, ".make-spin-%s", type);
|
||
|
||
if (stat (filenm, &dummy) == 0)
|
||
{
|
||
fprintf (stderr, "SPIN on %s\n", filenm);
|
||
do
|
||
#ifdef WINDOWS32
|
||
Sleep (1000);
|
||
#else
|
||
sleep (1);
|
||
#endif
|
||
while (stat (filenm, &dummy) == 0);
|
||
}
|
||
}
|
||
|
||
void
|
||
dbg (const char *fmt, ...)
|
||
{
|
||
FILE *fp = fopen ("/tmp/gmkdebug.log", "a+");
|
||
va_list args;
|
||
char buf[4096];
|
||
|
||
va_start (args, fmt);
|
||
vsprintf (buf, fmt, args);
|
||
va_end (args);
|
||
|
||
fprintf(fp, "%u: %s\n", (unsigned) make_pid (), buf);
|
||
fflush (fp);
|
||
fclose (fp);
|
||
}
|
||
|
||
#endif
|
||
|
||
|
||
|
||
/* Provide support for temporary files. */
|
||
|
||
#ifndef HAVE_STDLIB_H
|
||
# ifdef HAVE_MKSTEMP
|
||
int mkstemp (char *template);
|
||
# else
|
||
char *mktemp (char *template);
|
||
# endif
|
||
#endif
|
||
|
||
#ifndef HAVE_UMASK
|
||
mode_t
|
||
umask (mode_t mask)
|
||
{
|
||
return 0;
|
||
}
|
||
#endif
|
||
|
||
#ifdef VMS
|
||
# define DEFAULT_TMPFILE "sys$scratch:gnv$make_cmdXXXXXX.com"
|
||
#else
|
||
# define DEFAULT_TMPFILE "GmXXXXXX"
|
||
#endif
|
||
|
||
const char *
|
||
get_tmpdir ()
|
||
{
|
||
static const char *tmpdir = NULL;
|
||
|
||
if (!tmpdir)
|
||
{
|
||
#if defined (__MSDOS__) || defined (WINDOWS32) || defined (__EMX__)
|
||
# define TMP_EXTRAS "TMP", "TEMP",
|
||
#else
|
||
# define TMP_EXTRAS
|
||
#endif
|
||
const char *tlist[] = { "MAKE_TMPDIR", "TMPDIR", TMP_EXTRAS NULL };
|
||
const char **tp;
|
||
unsigned int found = 0;
|
||
|
||
for (tp = tlist; *tp; ++tp)
|
||
if ((tmpdir = getenv (*tp)) && *tmpdir != '\0')
|
||
{
|
||
struct stat st;
|
||
int r;
|
||
found = 1;
|
||
EINTRLOOP(r, stat (tmpdir, &st));
|
||
if (r < 0)
|
||
OSSS (error, NILF,
|
||
_("%s value %s: %s"), *tp, tmpdir, strerror (errno));
|
||
else if (! S_ISDIR (st.st_mode))
|
||
OSS (error, NILF,
|
||
_("%s value %s: not a directory"), *tp, tmpdir);
|
||
else
|
||
return tmpdir;
|
||
}
|
||
|
||
tmpdir = DEFAULT_TMPDIR;
|
||
|
||
if (found)
|
||
OS (error, NILF, _("using default temporary directory '%s'"), tmpdir);
|
||
}
|
||
|
||
return tmpdir;
|
||
}
|
||
|
||
static char *
|
||
get_tmptemplate ()
|
||
{
|
||
const char *tmpdir = get_tmpdir ();
|
||
char *template;
|
||
char *cp;
|
||
|
||
template = xmalloc (strlen (tmpdir) + CSTRLEN (DEFAULT_TMPFILE) + 2);
|
||
cp = stpcpy (template, tmpdir);
|
||
|
||
#if !defined VMS
|
||
/* It's not possible for tmpdir to be empty. */
|
||
if (! ISDIRSEP (cp[-1]))
|
||
*(cp++) = '/';
|
||
#endif
|
||
|
||
strcpy (cp, DEFAULT_TMPFILE);
|
||
|
||
return template;
|
||
}
|
||
|
||
#if !HAVE_MKSTEMP || !HAVE_FDOPEN
|
||
/* Generate a temporary filename. This is not safe as another program could
|
||
snipe our filename after we've generated it: use this only on systems
|
||
without more secure alternatives. */
|
||
|
||
static char *
|
||
get_tmppath ()
|
||
{
|
||
char *path;
|
||
|
||
# ifdef HAVE_MKTEMP
|
||
path = get_tmptemplate ();
|
||
if (*mktemp (path) == '\0')
|
||
pfatal_with_name ("mktemp");
|
||
# else
|
||
path = xmalloc (L_tmpnam + 1);
|
||
if (tmpnam (path) == NULL)
|
||
pfatal_with_name ("tmpnam");
|
||
# endif
|
||
|
||
return path;
|
||
}
|
||
#endif
|
||
|
||
/* Generate a temporary file and return an fd for it. If name is NULL then
|
||
the temp file is anonymous and will be deleted when the process exits. */
|
||
int
|
||
get_tmpfd (char **name)
|
||
{
|
||
int fd = -1;
|
||
char *tmpnm;
|
||
mode_t mask;
|
||
|
||
/* If there's an os-specific way to get an anoymous temp file use it. */
|
||
if (!name)
|
||
{
|
||
fd = os_anontmp ();
|
||
if (fd >= 0)
|
||
return fd;
|
||
}
|
||
|
||
/* Preserve the current umask, and set a restrictive one for temp files.
|
||
Only really needed for mkstemp() but won't hurt for the open method. */
|
||
mask = umask (0077);
|
||
|
||
#if defined(HAVE_MKSTEMP)
|
||
tmpnm = get_tmptemplate ();
|
||
|
||
/* It's safest to use mkstemp(), if we can. */
|
||
EINTRLOOP (fd, mkstemp (tmpnm));
|
||
#else
|
||
tmpnm = get_tmppath ();
|
||
|
||
/* Can't use mkstemp(), but try to guard against a race condition. */
|
||
EINTRLOOP (fd, open (tmpnm, O_CREAT|O_EXCL|O_RDWR, 0600));
|
||
#endif
|
||
if (fd < 0)
|
||
OSS (fatal, NILF,
|
||
_("create temporary file %s: %s"), tmpnm, strerror (errno));
|
||
|
||
if (name)
|
||
*name = tmpnm;
|
||
else
|
||
{
|
||
int r;
|
||
EINTRLOOP (r, unlink (tmpnm));
|
||
if (r < 0)
|
||
OSS (fatal, NILF,
|
||
_("unlink temporary file %s: %s"), tmpnm, strerror (errno));
|
||
free (tmpnm);
|
||
}
|
||
|
||
umask (mask);
|
||
|
||
return fd;
|
||
}
|
||
|
||
/* Return a FILE* for a temporary file, opened in the safest way possible.
|
||
Set name to point to an allocated buffer containing the name of the file.
|
||
Note, this cannot be NULL! */
|
||
FILE *
|
||
get_tmpfile (char **name)
|
||
{
|
||
/* Be consistent with tmpfile, which opens as if by "wb+". */
|
||
const char *tmpfile_mode = "wb+";
|
||
FILE *file;
|
||
|
||
#if defined(HAVE_FDOPEN)
|
||
int fd = get_tmpfd (name);
|
||
|
||
ENULLLOOP (file, fdopen (fd, tmpfile_mode));
|
||
if (file == NULL)
|
||
OSS (fatal, NILF,
|
||
_("fdopen: temporary file %s: %s"), *name, strerror (errno));
|
||
#else
|
||
/* Preserve the current umask, and set a restrictive one for temp files. */
|
||
mode_t mask = umask (0077);
|
||
int err;
|
||
|
||
*name = get_tmppath ();
|
||
|
||
/* Although this fopen is insecure, it is executed only on non-fdopen
|
||
platforms, which should be a rarity nowadays. */
|
||
|
||
ENULLLOOP (file, fopen (*name, tmpfile_mode));
|
||
if (file == NULL)
|
||
OSS (fatal, NILF,
|
||
_("fopen: temporary file %s: %s"), *name, strerror (errno));
|
||
|
||
umask (mask);
|
||
#endif
|
||
|
||
return file;
|
||
}
|
||
|
||
|
||
#if !HAVE_STRCASECMP && !HAVE_STRICMP && !HAVE_STRCMPI
|
||
/* If we don't have strcasecmp() (from POSIX), or anything that can substitute
|
||
for it, define our own version. */
|
||
|
||
int
|
||
strcasecmp (const char *s1, const char *s2)
|
||
{
|
||
while (1)
|
||
{
|
||
int c1 = (unsigned char) *(s1++);
|
||
int c2 = (unsigned char) *(s2++);
|
||
|
||
if (isalpha (c1))
|
||
c1 = tolower (c1);
|
||
if (isalpha (c2))
|
||
c2 = tolower (c2);
|
||
|
||
if (c1 != '\0' && c1 == c2)
|
||
continue;
|
||
|
||
return (c1 - c2);
|
||
}
|
||
}
|
||
#endif
|
||
|
||
#if !HAVE_STRNCASECMP && !HAVE_STRNICMP && !HAVE_STRNCMPI
|
||
/* If we don't have strncasecmp() (from POSIX), or anything that can
|
||
substitute for it, define our own version. */
|
||
|
||
int
|
||
strncasecmp (const char *s1, const char *s2, size_t n)
|
||
{
|
||
while (n-- > 0)
|
||
{
|
||
int c1 = (unsigned char) *(s1++);
|
||
int c2 = (unsigned char) *(s2++);
|
||
|
||
if (isalpha (c1))
|
||
c1 = tolower (c1);
|
||
if (isalpha (c2))
|
||
c2 = tolower (c2);
|
||
|
||
if (c1 != '\0' && c1 == c2)
|
||
continue;
|
||
|
||
return (c1 - c2);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
#endif
|
||
|
||
|
||
#ifdef NEED_GET_PATH_MAX
|
||
unsigned int
|
||
get_path_max (void)
|
||
{
|
||
static unsigned int value;
|
||
|
||
if (value == 0)
|
||
{
|
||
long x = pathconf ("/", _PC_PATH_MAX);
|
||
if (x > 0)
|
||
value = (unsigned int) x;
|
||
else
|
||
value = PATH_MAX;
|
||
}
|
||
|
||
return value;
|
||
}
|
||
#endif
|
||
|
||
#if !HAVE_MEMPCPY
|
||
void *
|
||
mempcpy (void *dest, const void *src, size_t n)
|
||
{
|
||
return (char *) memcpy (dest, src, n) + n;
|
||
}
|
||
#endif
|
||
|
||
#if !HAVE_STPCPY
|
||
char *
|
||
stpcpy (char *dest, const char *src)
|
||
{
|
||
char *d = dest;
|
||
const char *s = src;
|
||
|
||
do
|
||
*d++ = *s;
|
||
while (*s++ != '\0');
|
||
|
||
return d - 1;
|
||
}
|
||
#endif
|
||
|
||
#if !HAVE_STRTOLL
|
||
# undef UNSIGNED
|
||
# undef USE_NUMBER_GROUPING
|
||
# undef USE_WIDE_CHAR
|
||
# define QUAD 1
|
||
# include <strtol.c>
|
||
#endif
|
||
|
||
#if !HAVE_STRERROR
|
||
char *
|
||
strerror (int errnum)
|
||
{
|
||
static char msg[256];
|
||
|
||
#define SETMSG(_e, _m) case _e: strcpy(msg, _m); break
|
||
|
||
switch (errnum)
|
||
{
|
||
#ifdef EPERM
|
||
SETMSG (EPERM , "Operation not permitted");
|
||
#endif
|
||
#ifdef ENOENT
|
||
SETMSG (ENOENT , "No such file or directory");
|
||
#endif
|
||
#ifdef ESRCH
|
||
SETMSG (ESRCH , "No such process");
|
||
#endif
|
||
#ifdef EINTR
|
||
SETMSG (EINTR , "Interrupted system call");
|
||
#endif
|
||
#ifdef EIO
|
||
SETMSG (EIO , "I/O error");
|
||
#endif
|
||
#ifdef ENXIO
|
||
SETMSG (ENXIO , "No such device or address");
|
||
#endif
|
||
#ifdef E2BIG
|
||
SETMSG (E2BIG , "Argument list too long");
|
||
#endif
|
||
#ifdef ENOEXEC
|
||
SETMSG (ENOEXEC, "Exec format error");
|
||
#endif
|
||
#ifdef EBADF
|
||
SETMSG (EBADF , "Bad file number");
|
||
#endif
|
||
#ifdef ECHILD
|
||
SETMSG (ECHILD , "No child processes");
|
||
#endif
|
||
#ifdef EAGAIN
|
||
SETMSG (EAGAIN , "Try again");
|
||
#endif
|
||
#ifdef ENOMEM
|
||
SETMSG (ENOMEM , "Out of memory");
|
||
#endif
|
||
#ifdef EACCES
|
||
SETMSG (EACCES , "Permission denied");
|
||
#endif
|
||
#ifdef EFAULT
|
||
SETMSG (EFAULT , "Bad address");
|
||
#endif
|
||
#ifdef ENOTBLK
|
||
SETMSG (ENOTBLK, "Block device required");
|
||
#endif
|
||
#ifdef EBUSY
|
||
SETMSG (EBUSY , "Device or resource busy");
|
||
#endif
|
||
#ifdef EEXIST
|
||
SETMSG (EEXIST , "File exists");
|
||
#endif
|
||
#ifdef EXDEV
|
||
SETMSG (EXDEV , "Cross-device link");
|
||
#endif
|
||
#ifdef ENODEV
|
||
SETMSG (ENODEV , "No such device");
|
||
#endif
|
||
#ifdef ENOTDIR
|
||
SETMSG (ENOTDIR, "Not a directory");
|
||
#endif
|
||
#ifdef EISDIR
|
||
SETMSG (EISDIR , "Is a directory");
|
||
#endif
|
||
#ifdef EINVAL
|
||
SETMSG (EINVAL , "Invalid argument");
|
||
#endif
|
||
#ifdef ENFILE
|
||
SETMSG (ENFILE , "File table overflow");
|
||
#endif
|
||
#ifdef EMFILE
|
||
SETMSG (EMFILE , "Too many open files");
|
||
#endif
|
||
#ifdef ENOTTY
|
||
SETMSG (ENOTTY , "Not a typewriter");
|
||
#endif
|
||
#ifdef ETXTBSY
|
||
SETMSG (ETXTBSY, "Text file busy");
|
||
#endif
|
||
#ifdef EFBIG
|
||
SETMSG (EFBIG , "File too large");
|
||
#endif
|
||
#ifdef ENOSPC
|
||
SETMSG (ENOSPC , "No space left on device");
|
||
#endif
|
||
#ifdef ESPIPE
|
||
SETMSG (ESPIPE , "Illegal seek");
|
||
#endif
|
||
#ifdef EROFS
|
||
SETMSG (EROFS , "Read-only file system");
|
||
#endif
|
||
#ifdef EMLINK
|
||
SETMSG (EMLINK , "Too many links");
|
||
#endif
|
||
#ifdef EPIPE
|
||
SETMSG (EPIPE , "Broken pipe");
|
||
#endif
|
||
#ifdef EDOM
|
||
SETMSG (EDOM , "Math argument out of domain of func");
|
||
#endif
|
||
#ifdef ERANGE
|
||
SETMSG (ERANGE , "Math result not representable");
|
||
#endif
|
||
default: sprintf (msg, "Unknown error %d", errnum); break;
|
||
}
|
||
|
||
return msg;
|
||
}
|
||
#endif
|