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NAMEexplain_endgrent - explain endgrent(3) errorsSYNOPSIS#include <libexplain/endgrent.h> const char *explain_endgrent(void);DESCRIPTIONThese functions may be used to obtain explanations for errors returned by the endgrent(3) system call.explain_endgrentconst char *explain_endgrent(void); The explain_endgrent function is used to obtain an explanation of an error returned by the endgrent(3) system call. The least the message will contain is the value of strerror(errno), but usually it will do much better, and indicate the underlying cause in more detail. The errno global variable will be used to obtain the error value to be decoded.
errno = 0;
The above code example is available pre-packaged as the
explain_endgrent_or_die(3) function.
void result = endgrent(); { fprintf(stderr, "%s\n", explain_endgrent()); exit(EXIT_FAILURE); } explain_errno_endgrentconst char *explain_errno_endgrent(int errnum, void); The explain_errno_endgrent function is used to obtain an explanation of an error returned by the endgrent(3) system call. The least the message will contain is the value of strerror(errno), but usually it will do much better, and indicate the underlying cause in more detail.
errno = 0;
The above code example is available pre-packaged as the
explain_endgrent_or_die(3) function.
void result = endgrent(); { int err = errno; fprintf(stderr, "%s\n", explain_errno_endgrent(err, )); exit(EXIT_FAILURE); } explain_message_endgrentvoid explain_message_endgrent(char *message, int message_size, void); The explain_message_endgrent function is used to obtain an explanation of an error returned by the endgrent(3) system call. The least the message will contain is the value of strerror(errno), but usually it will do much better, and indicate the underlying cause in more detail. The errno global variable will be used to obtain the error value to be decoded.
errno = 0;
The above code example is available pre-packaged as the
explain_endgrent_or_die(3) function.
void result = endgrent(); { char message[3000];explain_message_endgrent(message, sizeof(message), );
explain_message_errno_endgrentvoid explain_message_errno_endgrent(char *message, int message_size, int errnum, void); The explain_message_errno_endgrent function is used to obtain an explanation of an error returned by the endgrent(3) system call. The least the message will contain is the value of strerror(errno), but usually it will do much better, and indicate the underlying cause in more detail.
errno = 0;
The above code example is available pre-packaged as the
explain_endgrent_or_die(3) function.
void result = endgrent(); { int err = errno; char message[3000];explain_message_errno_endgrent(message, sizeof(message), err, );
SEE ALSO
COPYRIGHTlibexplain version 1.3
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