FEXECL(3)

okay bestie, welcome to FEXECL(3) from Schily´s LIBRARY FUNCTIONS — this is the page where fexecl() explains how it executes a program. 💅✨

💅 NAME

fexecl() — executes a program. That's the whole name section, and honestly? iconic. 👑

✨ SYNOPSIS ✨

Here's the exact call shape, bestie — types and all:

fexecl(name, in, out, err, arg0, arg1, ... argn, NULL)
char *name;
FILE *in, *out, *err;
char *arg0...*argn;

🌸 DESCRIPTION 🌸

okay so fexecl() is a variation of fexecve(). The description of fexecve() applies to fexecl() too, with exactly two exceptions. 🦋

• First: fexecl() does not permit the environment list to be specified; it causes the new program to have the same environment as the current program, using the global environment pointer environ. 🌈
• Second: the argument list for the new program is constructed as part of the call to fexecl(). This is a lot easier to write than the code to construct a vector of strings, but is limited to cases with a fixed number of arguments. The argument list will consist of the strings a0, a1, and so on. By convention, a0 is the name of the new program. 💅

🎀 RETURNS 🎀

fexecl() returns a system error code. It doesn't return if successful — like, if it slays, it's not coming back, bestie. 😭🔥

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Signed off by Joerg Schilling on 2022/09/09 — this is FEXECL(3) from Schily´s LIBRARY FUNCTIONS, and it ate. 💖🫶