fgetgrent (3) - Linux Manuals
fgetgrent: get group file entry
fgetgrent - get group file entry
#include <stdio.h> #include <sys/types.h> #include <grp.h> struct group *fgetgrent(FILE *stream);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
DESCRIPTIONThe fgetgrent() function returns a pointer to a structure containing the group information from the file referred to by stream. The first time it is called it returns the first entry; thereafter, it returns successive entries. The file referred to by stream must have the same format as /etc/group (see group(5)).
The group structure is defined in <grp.h> as follows:
RETURN VALUEThe fgetgrent() function returns a pointer to a group structure, or NULL if there are no more entries or an error occurs. In the event of an error, errno is set to indicate the cause.
- Insufficient memory to allocate group structure.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
|fgetgrent()||Thread safety||MT-Unsafe race:fgetgrent|
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