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putpwent 3C "29 Dec 1996" "SunOS 5.11" "Standard C Library Functions"
NAME
putpwent - write password file entry
SYNOPSIS

#include <pwd.h>

int putpwent(const struct passwd *p, FILE *f);
DESCRIPTION

The putpwent() function is the inverse of getpwent(). See getpwnam(3C). Given a pointer to a passwd structure created by getpwent(), getpwuid(), or getpwnam(), putpwent() writes a line on the stream f that matches the format of /etc/passwd.

RETURN VALUES

The putpwent() function returns a non-zero value if an error was detected during its operation. Otherwise, it returns 0.

USAGE

The putpwent() function is of limited utility, since most password files are maintained as Network Information Service (NIS) files that cannot be updated with this function. For this reason, the use of this function is discouraged. If used at all, it should be used with putspent(3C) to update the shadow file.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
MT-LevelUnsafe
SEE ALSO

getpwnam(3C), putspent(3C), attributes(5)