ERRMSG(3)

okay bestie, welcome to ERRMSG(3) from Schily´s LIBRARY FUNCTIONS — yes, that's the manual name, and we are obsessed ✨💅

🌸 NAME 🌸

• errmsg() — prints error message

✨ SYNOPSIS ✨

errmsg (format, arg1...argn)
char *format;

💖 DESCRIPTION 💖

okay so listen: errmsg() prints on the error output stream a message corresponding to the last error encountered by the system on behalf of the process. no cap, that's the whole assignment 💖

it begins its output with the current program name (as passed to it by exec). and the message can be expanded with additional arguments, in the same form printf() would. iykyk ✨

🎀 RETURNS 🎀

none — literally none, bestie. the returns section ate and left no crumbs 🫶

🦋 EXAMPLES 🦋

vibe check, here's the example exactly:

while (more_args) {
     if (( f = fileopen(arg, "r")) == NULL) {
          errmsg("Skipping file %s.\n", arg);
          continue;
     }
     doit(f)
}

🌈 SEE ALSO 🌈

• comerr(3)
• comerrno(3)
• error(3)
• geterrno(3)
• printf(3)
• format(3)

👑 NOTES 👑

errmsg() is identical to comerr() except that instead of exiting, errmsg() prints the error message and returns to the caller. periodt 💅 that's the whole note.

xoxo, Joerg Schilling — 2022/09/09 — from Schily´s LIBRARY FUNCTIONS, page ERRMSG(3) 💖🎀