/* Set program_name, based on argv[0], and original installation prefix and
directory, for relocatability. */
void
set_program_name_and_installdir (const char *argv0,
const char *orig_installprefix,
const char *orig_installdir)
{
const char *argv0_stripped = argv0;
/* Relocatable programs are renamed to .bin by install-reloc. Remove
this suffix here. */
{
size_t argv0_len = strlen (argv0);
if (argv0_len > 4 && memcmp (argv0 + argv0_len - 4, ".bin", 4) == 0)
{
char *shorter = (char *) xmalloc (argv0_len - 4 + 1);
#ifdef NO_XMALLOC
if (shorter != NULL)
#endif
{
memcpy (shorter, argv0, argv0_len - 4);
shorter[argv0_len - 4] = '\0';
argv0_stripped = shorter;
}
}
}
set_program_name (argv0_stripped);
prepare_relocate (orig_installprefix, orig_installdir, argv0);
}
/* Set program_name, based on argv[0], and original installation prefix and
directory, for relocatability. */
void
set_program_name_and_installdir (const char *argv0,
const char *orig_installprefix,
const char *orig_installdir)
{
const char *argv0_stripped = argv0;
/* Relocatable programs are renamed to .bin by install-reloc. Or, more
generally, their suffix is changed from $exeext to .bin$exeext.
Remove the ".bin" here. */
{
size_t argv0_len = strlen (argv0);
const size_t exeext_len = sizeof (EXEEXT) - sizeof ("");
if (argv0_len > 4 + exeext_len)
if (memcmp (argv0 + argv0_len - exeext_len - 4, ".bin", 4) == 0)
{
if (sizeof (EXEEXT) > sizeof (""))
{
/* Compare using an inlined copy of c_strncasecmp(), because
the filenames may have undergone a case conversion since
they were packaged. In other words, EXEEXT may be ".exe"
on one system and ".EXE" on another. */
static const char exeext[] = EXEEXT;
const char *s1 = argv0 + argv0_len - exeext_len;
const char *s2 = exeext;
for (; *s1 != '\0'; s1++, s2++)
{
unsigned char c1 = *s1;
unsigned char c2 = *s2;
if ((c1 >= 'A' && c1 <= 'Z' ? c1 - 'A' + 'a' : c1)
!= (c2 >= 'A' && c2 <= 'Z' ? c2 - 'A' + 'a' : c2))
goto done_stripping;
}
}
/* Remove ".bin" before EXEEXT or its equivalent. */
{
char *shorter = (char *) xmalloc (argv0_len - 4 + 1);
#ifdef NO_XMALLOC
if (shorter != NULL)
#endif
{
memcpy (shorter, argv0, argv0_len - exeext_len - 4);
if (sizeof (EXEEXT) > sizeof (""))
memcpy (shorter + argv0_len - exeext_len - 4,
argv0 + argv0_len - exeext_len - 4,
exeext_len);
shorter[argv0_len - 4] = '\0';
argv0_stripped = shorter;
}
}
done_stripping: ;
}
}
set_program_name (argv0_stripped);
prepare_relocate (orig_installprefix, orig_installdir, argv0);
}
