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| explain_fgets_or_die(3) | FreeBSD Library Functions Manual | explain_fgets_or_die(3) |
NAME
explain_fgets_or_die - input of strings and report errorsSYNOPSIS
#include <libexplain/fgets.h>char *explain_fgets_or_die(char *data, int data_size, FILE *fp);
DESCRIPTION
The explain_fgets_or_die function is used to call the fgets(3) system call. On failure an explanation will be printed to stderr, obtained from explain_fgets(3), and then the process terminates by calling exit(EXIT_FAILURE).This function is intended to be used in a fashion similar to the following example:
explain_fgets_or_die(data, data_size, fp);
- data
- The data, exactly as to be passed to the fgets(3) system call.
- data_size
- The data_size, exactly as to be passed to the fgets(3) system call.
- fp
- The fp, exactly as to be passed to the fgets(3) system call.
- Returns:
- This function only returns on success; data when a line is read, or NULL on end‐of‐file. On failure, prints an explanation and exits.
SEE ALSO
- fgets(3)
- input of strings
- explain_fgets(3)
- explain fgets(3) errors
- exit(2)
- terminate the calling process
COPYRIGHT
libexplain version 1.3Copyright (C) 2008 Peter Miller
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