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Diffstat (limited to 'src/lib/libcmd/cmd.h')
| -rw-r--r-- | src/lib/libcmd/cmd.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/lib/libcmd/cmd.h b/src/lib/libcmd/cmd.h new file mode 100644 index 0000000..2146e74 --- /dev/null +++ b/src/lib/libcmd/cmd.h @@ -0,0 +1,163 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1992-2012 AT&T Intellectual Property * +* and is licensed under the * +* Eclipse Public License, Version 1.0 * +* by AT&T Intellectual Property * +* * +* A copy of the License is available at * +* http://www.eclipse.org/org/documents/epl-v10.html * +* (with md5 checksum b35adb5213ca9657e911e9befb180842) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler <gsf@research.att.com> * +* David Korn <dgk@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped +/* + * AT&T Research + * + * builtin cmd definitions + */ + +#ifndef _CMD_H +#define _CMD_H + +#include <ast.h> +#include <error.h> +#include <stak.h> +#include <shcmd.h> + +#define cmdinit _cmd_init + +#define ERROR_CALLBACK ERROR_SET + +#if _BLD_cmd && defined(__EXPORT__) +#define extern __EXPORT__ +#endif + +#include <cmdext.h> + +#undef extern + +#if defined(CMD_BUILTIN) && !defined(CMD_STANDALONE) +#define CMD_STANDALONE CMD_BUILTIN +#endif + +#ifdef CMD_STANDALONE + +#define CMD_CONTEXT(c) ((Shbltin_t*)0) + +#if CMD_DYNAMIC + +#include <dlldefs.h> + +#else + +extern int CMD_STANDALONE(int, char**, Shbltin_t*); + +#endif + +#ifndef CMD_BUILTIN + +/* + * command initialization + */ + +static int +cmdinit(int argc, register char** argv, Shbltin_t* context, const char* catalog, int flags) +{ + register char* cp; + register char* pp; + + if (cp = strrchr(argv[0], '/')) + cp++; + else + cp = argv[0]; + if (pp = strrchr(cp, '_')) + cp = pp + 1; + error_info.id = cp; + if (!error_info.catalog) + error_info.catalog = (char*)catalog; + opt_info.index = 0; + if (context) + error_info.flags |= flags & ~(ERROR_CALLBACK|ERROR_NOTIFY); + return 0; +} + +#endif + +int +main(int argc, char** argv) +{ +#if CMD_DYNAMIC + register char* s; + register char* t; + void* dll; + Shbltin_f fun; + char buf[64]; + + if (s = strrchr(argv[0], '/')) + s++; + else if (!(s = argv[0])) + return 127; + if ((t = strrchr(s, '_')) && *++t) + s = t; + buf[0] = '_'; + buf[1] = 'b'; + buf[2] = '_'; + strncpy(buf + 3, s, sizeof(buf) - 4); + buf[sizeof(buf) - 1] = 0; + if (t = strchr(buf, '.')) + *t = 0; + for (;;) + { + if (dll = dlopen(NiL, RTLD_LAZY)) + { + if (fun = (Shbltin_f)dlsym(dll, buf + 1)) + break; + if (fun = (Shbltin_f)dlsym(dll, buf)) + break; + } + if (dll = dllplug(NiL, "cmd", NiL, RTLD_LAZY, NiL, 0)) + { + if (fun = (Shbltin_f)dlsym(dll, buf + 1)) + break; + if (fun = (Shbltin_f)dlsym(dll, buf)) + break; + } + return 127; + } + return (*fun)(argc, argv, NiL); +#else + return CMD_STANDALONE(argc, argv, NiL); +#endif +} + +#else + +#undef cmdinit +#ifdef _MSC_VER +#define CMD_CONTEXT(p) ((Shbltin_t*)(p)) +#define cmdinit(a,b,c,d,e) do{if(_cmd_init(a,b,c,d,e))return -1;}while(0) +#else +#define CMD_CONTEXT(p) (((p)&&((Shbltin_t*)(p))->version>=20071012&&((Shbltin_t*)(p))->version<20350101)?((Shbltin_t*)(p)):0) +#define cmdinit(a,b,c,d,e) do{if((c)&&!CMD_CONTEXT(c))c=0;if(_cmd_init(a,b,c,d,e))return -1;}while(0) +#endif + +#if _BLD_cmd && defined(__EXPORT__) +#define extern extern __EXPORT__ +#endif + +extern int _cmd_init(int, char**, Shbltin_t*, const char*, int); + +#undef extern + +#endif + +#endif |