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Diffstat (limited to 'src/system.c')
| -rw-r--r-- | src/system.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/system.c b/src/system.c new file mode 100644 index 0000000..844a641 --- /dev/null +++ b/src/system.c @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2004 + * Herbert Xu <herbert@gondor.apana.org.au>. All rights reserved. + * + * 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. The name of the author may not 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. + */ + +#ifndef HAVE_ISALPHA +#define isalnum _isalnum +#define iscntrl _iscntrl +#define islower _islower +#define isspace _isspace +#define isalpha _isalpha +#define isdigit _isdigit +#define isprint _isprint +#define isupper _isupper +#define isblank _isblank +#define isgraph _isgraph +#define ispunct _ispunct +#define isxdigit _isxdigit +#include <ctype.h> +#undef isalnum +#undef iscntrl +#undef islower +#undef isspace +#undef isalpha +#undef isdigit +#undef isprint +#undef isupper +#undef isblank +#undef isgraph +#undef ispunct +#undef isxdigit +#endif + +#include <signal.h> +#include <string.h> + +#include "error.h" +#include "output.h" +#include "system.h" + +#ifndef HAVE_MEMPCPY +void *mempcpy(void *dest, const void *src, size_t n) +{ + return memcpy(dest, src, n) + n; +} +#endif + +#ifndef HAVE_STPCPY +char *stpcpy(char *dest, const char *src) +{ + size_t len = strlen(src); + dest[len] = 0; + return mempcpy(dest, src, len); +} +#endif + +#ifndef HAVE_STRCHRNUL +char *strchrnul(const char *s, int c) +{ + char *p = strchr(s, c); + if (!p) + p = (char *)s + strlen(s); + return p; +} +#endif + +#ifndef HAVE_STRSIGNAL +char *strsignal(int sig) +{ + static char buf[19]; + + if ((unsigned)sig < NSIG && sys_siglist[sig]) + return (char *)sys_siglist[sig]; + fmtstr(buf, sizeof(buf), "Signal %d", sig); + return buf; +} +#endif + +#ifndef HAVE_BSEARCH +void *bsearch(const void *key, const void *base, size_t nmemb, + size_t size, int (*cmp)(const void *, const void *)) +{ + while (nmemb) { + size_t mididx = nmemb / 2; + const void *midobj = base + mididx * size; + int diff = cmp(key, midobj); + + if (diff == 0) + return (void *)midobj; + + if (diff > 0) { + base = midobj + size; + nmemb -= mididx + 1; + } else + nmemb = mididx; + } + + return 0; +} +#endif + +#ifndef HAVE_SYSCONF +long sysconf(int name) +{ + sh_error("no sysconf for: %d", name); +} +#endif + +#ifndef HAVE_ISALPHA +int isalnum(int c) { + return _isalnum(c); +} + + +int iscntrl(int c) { + return _iscntrl(c); +} + + +int islower(int c) { + return _islower(c); +} + + +int isspace(int c) { + return _isspace(c); +} + + +int isalpha(int c) { + return _isalpha(c); +} + + +int isdigit(int c) { + return _isdigit(c); +} + + +int isprint(int c) { + return _isprint(c); +} + + +int isupper(int c) { + return _isupper(c); +} + + +#if HAVE_DECL_ISBLANK +int isblank(int c) { + return _isblank(c); +} +#endif + + +int isgraph(int c) { + return _isgraph(c); +} + + +int ispunct(int c) { + return _ispunct(c); +} + + +int isxdigit(int c) { + return _isxdigit(c); +} +#endif + +#if !HAVE_DECL_ISBLANK +int isblank(int c) { + return c == ' ' || c == '\t'; +} +#endif |