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isaexec(3C)		 Standard C Library Functions		   isaexec(3C)

NAME
       isaexec - invoke	isa-specific executable

SYNOPSIS
       #include	<unistd.h>

       int isaexec(const char *path, char *const argv[], char *const envp[]);

DESCRIPTION
       The  isaexec()  function	takes the path specified as path and breaks it
       into directory and file name components.	It enquires from  the  running
       system  the  list of supported instruction set architectures; see isal-
       ist(5). The function traverses the list for an executable file in named
       subdirectories of the original directory.  When such a file is located,
       execve()	is invoked with	argv[] and envp[]. See exec (2).

RETURN VALUES
       If no file is located, isaexec()	returns	ENOENT.	 Other	return	values
       are the same as for execve().

EXAMPLES
       Example 1: Example of isaexec() function.

       On a system whose isalist is

       sparcv7 sparc

       the program

       int
       main(int	argc, char *argv[], char *envp[])
       {
	       return (isaexec("/bin/thing", argv, envp));
       }

       will  look  first for an	executable file	named /bin/sparcv7/thing, then
       for an executable file named bin/sparc/thing. It	will  invoke  execve()
       on the first executable file it finds named thing.

       On  that	 same  system,	a  program called /u/bin/tofu can cause	either
       /u/bin/sparcv7/tofu or /u/bin/sparc/tofu	to be invoked using  the  fol-
       lowing code:

       int
       main(int	argc, char *argv[], char *envp[])
       {
		     return (isaexec(getexecname(), argv, envp));
       }

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE	TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Stable			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       exec(2),	getexecname(3C), attributes(5),	isalist(5)

SunOS 5.9			  20 Mar 1998			   isaexec(3C)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | EXAMPLES | ATTRIBUTES | SEE ALSO

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