CALL_USERMODEHELPER(9) Module Support CALL_USERMODEHELPER(9)NAME
call_usermodehelper - prepare and start a usermode application
int call_usermodehelper(char * path, char ** argv, char ** envp, int wait);
path to usermode executable
arg vector for process
environment for process
wait for the application to finish and return status. when UMH_NO_WAIT don't wait at all, but you get no useful error back when the
program couldn't be exec'ed. This makes it safe to call from interrupt context.
This function is the equivalent to use call_usermodehelper_setup and call_usermodehelper_exec.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 CALL_USERMODEHELPER(9)
Check Out this Related Man Page
isaexec(3C) Standard C Library Functions isaexec(3C)NAME
isaexec - invoke isa-specific executable
int isaexec(const char *path, char *const argv, char *const envp);
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 isalist(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).
If no file is located, isaexec() returns ENOENT. Other return values are the same as for execve().
Example 1: Example of isaexec() function.
On a system whose isalist is
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 follow-
main(int argc, char *argv, char *envp)
return (isaexec(getexecname(), argv, envp));
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 5.10 20 Mar 1998 isaexec(3C)
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