qsystem.c File Reference

System APIs. More...

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Functions
const char *	qgetenv (const char *envname, const char *defstr)
	Get system environment variable.
char *	qsyscmd (const char *cmd)
	Get the result string of external command execution.

Detailed Description

System APIs.

Definition in file qsystem.c.

Function Documentation

qgetenv()

const char * qgetenv	(	const char *	envname,
		const char *	defstr
	)

Get system environment variable.

Parameters

envname	environment name
defstr	if not found, return this string

Returns

a pointer of environment variable

Definition at line 54 of file qsystem.c.

qsyscmd()

char * qsyscmd

(

const char *

cmd

)

Get the result string of external command execution.

Parameters

cmd	external command

Returns

malloced string pointer which contains result if successful, otherwise returns NULL

Note

If the command does not report result but it is executed successfully, this will returns empty string(not null)

Definition at line 71 of file qsystem.c.