WebSVN – planix.SVN – Blame – /os/branches/planix-v0/sys/man/2/getenv

Rev	Author	Line No.	Line
2	-	1	`.TH GETENV 2`
		2	`.SH NAME`
		3	`getenv, putenv \- access environment variables`
		4	`.SH SYNOPSIS`
		5	`.B #include <u.h>`
		6	`.br`
		7	`.B #include <libc.h>`
		8	`.PP`
		9	`.nf`
		10	`.B`
		11	`char* getenv(char *name)`
		12	`.br`
		13	`.B`
		14	`int putenv(char name, char val)`
		15	`.fi`
		16	`.SH DESCRIPTION`
		17	`.I Getenv`
		18	`reads the contents of`
		19	`.BI /env/ name`
		20	`(see`
		21	`.IR env (3))`
		22	`into memory allocated with`
		23	`.IR malloc (2),`
		24	`0-terminates it,`
		25	`and returns a pointer to that area.`
		26	`If no file exists, 0`
		27	`is returned.`
		28	`.PP`
		29	`.I Putenv`
		30	`creates the file`
		31	`.BI /env/ name`
		32	`and writes the string`
		33	`.I val`
		34	`to it. The terminating`
		35	`.B 0`
		36	`is not written.`
		37	`If the file value cannot be written, \-1 is returned.`
		38	`.SH SOURCE`
		39	`.B /sys/src/libc/9sys`
		40	`.SH SEE ALSO`
		41	`.IR env (3)`
		42	`.SH DIAGNOSTICS`
		43	`Sets`
		44	`.IR errstr .`

Subversion Repositories planix.SVN