pwd.h(0P)

💖 pwd.h(0P) — the password structure era 💖

okay bestie, so this one is from the POSIX Programmer's Manual ✨ (the 0P manual, iykyk) and we're doing a whole deep dive on <pwd.h>. buckle up 🎀

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🌸 PROLOG 🌸

so like, real talk first 🫶 this manual page is part of the POSIX Programmer's Manual. but — and this is the important part — the Linux implementation of this interface may differ (so pls go consult the corresponding Linux manual page for the deets on Linux behavior), or honestly the interface may not even be implemented on Linux at all. no cap. 💀

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✨ NAME ✨

pwd.h — password structure 🗝️

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🎀 SYNOPSIS 🎀

#include <pwd.h>

that's it. that's the whole vibe. 💅

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💅 DESCRIPTION 💅

okay so the <pwd.h> header is gonna define the struct passwd structure, and it shall include at least these members — like, minimum, bestie, there's always room for more:

char    *pw_name   User's login name.
uid_t    pw_uid    Numerical user ID.
gid_t    pw_gid    Numerical group ID.
char    *pw_dir    Initial working directory.
char    *pw_shell  Program to use as shell.

and the <pwd.h> header shall also define the gid_t, uid_t, and size_t types — exactly as described in <sys/types.h>. slay 🌈

then, the following shall be declared as functions, and they may also be defined as macros. Function prototypes shall be provided, so like, no sneaking around with mystery signatures:

void           endpwent(void);
struct passwd *getpwent(void);
struct passwd *getpwnam(const char *);
int            getpwnam_r(const char *, struct passwd *, char *,
                   size_t, struct passwd **);
struct passwd *getpwuid(uid_t);
int            getpwuid_r(uid_t, struct passwd *, char *,
                   size_t, struct passwd **);
void           setpwent(void);

heads up: the following sections are informative. 📢 meaning: cute context, not requirements. periodt.

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🦋 APPLICATION USAGE 🦋

None. literally nothing. empty. ghosted. 🙈

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💜 RATIONALE 💜

None. also nothing. the reasoning said "no thoughts, head empty" 🧚

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🔥 FUTURE DIRECTIONS 🔥

None. nothing's changing, bestie. we stay iconic 👑

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⭐ SEE ALSO ⭐

• <sys_types.h>

and also, from the System Interfaces volume of POSIX.1‐2017: endpwent(), getpwnam(), getpwuid(). go read those, they're the main characters of this whole saga 💖

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👑 COPYRIGHT 👑

okay so legally I have to tell you this and I'm gonna do it with full respect because it's important 🫶

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

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and that's the whole page bestie!! 💖 this one came to you from IEEE/The Open Group, 2017 — yeah, 2017, vintage queen 👑 — and yes the manual page is literally called pwd.h(0P). stan. 🌸✨🎀🦋💅