83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/***
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*execlpe.c - execute a file with environ, search along path
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*
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* Copyright (c) 1985-1991, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* defines _execlpe() - execute a file with environ and search along PATH
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*
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*Revision History:
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* 10-17-83 RN written
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* ??-??-?? TC added execlpe
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* 06-18-86 JMB added environment pointer which was erroneously missing
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* 06-11-87 PHG removed unnecessary environment pointer (isn't this
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* fun!)
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* 12-11-87 JCR Added "_LOAD_DS" to declaration
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* 11-20-89 GJF Fixed copyright, indents. Added const attribute to
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* types of filename and arglist. #include-d PROCESS.H
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* and added ellipsis to match prototype.
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* 03-08-90 GJF Replaced _LOAD_DS with _CALLTYPE2, added #include
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* <cruntime.h> and removed #include <register.h>
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* 07-24-90 SBM Removed redundant includes, replaced <assertm.h> by
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* <assert.h>
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* 09-27-90 GJF New-style function declarator.
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* 01-17-91 GJF ANSI naming.
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* 07-16-93 SRW ALPHA Merge
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <process.h>
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#include <stdarg.h>
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#include <internal.h>
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/***
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*int _execlpe(filename, arglist) - execute a file with environ
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*
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*Purpose:
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* Executes the given file with the parameters and the environment
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* which is passed after the parameters. Searches along the PATH
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* for the file (done by execvp).
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*
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*Entry:
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* char *filename - file to execute
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* char *arglist - argument list (environment is at the end)
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* call as _execlpe(path, arg0, arg1, ..., argn, NULL, envp);
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*
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*Exit:
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* destroys the calling process (hopefully)
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* if fails, returns -1
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*
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*Exceptions:
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*
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*******************************************************************************/
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int _CALLTYPE2 _execlpe (
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const char *filename,
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const char *arglist,
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...
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)
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{
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va_list vargs;
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char * argbuf[64];
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char ** argv;
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char ** envp;
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int result;
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assert(filename != NULL);
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assert(*filename != '\0');
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assert(arglist != NULL);
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assert(*arglist != '\0');
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va_start(vargs, arglist);
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argv = _capture_argv(&vargs, arglist, argbuf, 64);
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envp = va_arg(vargs, char **);
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va_end(vargs);
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result = _execvpe(filename,argv,envp);
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if (argv && argv != argbuf) free(argv);
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return result;
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}
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