1isaexec(3C)              Standard C Library Functions              isaexec(3C)
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NAME

6       isaexec - invoke isa-specific executable
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SYNOPSIS

9       #include <unistd.h>
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11       int isaexec(const char *path, char *const argv[], char *const envp[]);
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DESCRIPTION

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

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

27       Example 1 Example of isaexec() function.
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30       On a system whose isalist is
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33         sparcv7 sparc
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37       the program
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40         int
41         main(int argc, char *argv[], char *envp[])
42         {
43                 return (isaexec("/bin/thing", argv, envp));
44         }
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48       will  look  first for an executable file named /bin/sparcv7/thing, then
49       for an executable file named /bin/sparc/thing. It will invoke  execve()
50       on the first executable file it finds named thing.
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54       On  that  same  system,  a  program called /u/bin/tofu can cause either
55       /u/bin/sparcv7/tofu or /u/bin/sparc/tofu to be invoked using  the  fol‐
56       lowing code:
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59         int
60         main(int argc, char *argv[], char *envp[])
61         {
62                       return (isaexec(getexecname(), argv, envp));
63         }
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ATTRIBUTES

67       See attributes(5) for descriptions of the following attributes:
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72       ┌─────────────────────────────┬─────────────────────────────┐
73       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
74       ├─────────────────────────────┼─────────────────────────────┤
75       │MT-Level                     │Safe                         │
76       ├─────────────────────────────┼─────────────────────────────┤
77       │Interface Stability          │Stable                       │
78       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

81       exec(2), getexecname(3C), attributes(5), isalist(5)
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85SunOS 5.11                        20 Mar 1998                      isaexec(3C)
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