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Change fgetln to return the correct length value

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Set len to 0 on error conditions to mimmic FreeBSD behaviour, and return
the amount of read characters on success, instead of the allocated size
by getline.

Reported-by: Jief L. <jief1.l@gmail.com>
This commit is contained in:
Guillem Jover 2009-05-15 21:23:03 +02:00
parent aefc6f441a
commit deb9f56ceb
1 changed files with 9 additions and 8 deletions
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15
src/fgetln.c
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@ -1,6 +1,6 @@
/* /*
* Copyright (C) 2005 Hector Garcia Alvarez * Copyright (C) 2005 Hector Garcia Alvarez
* Copyright (C) 2005, 2008 Guillem Jover * Copyright (C) 2005, 2008, 2009 Guillem Jover
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
@ -35,16 +35,17 @@ char *
fgetln (FILE *stream, size_t *len) fgetln (FILE *stream, size_t *len)
{ {
char *line = NULL; char *line = NULL;
size_t line_len = 0;
ssize_t nread; ssize_t nread;
nread = getline (&line, len, stream); nread = getline(&line, &line_len, stream);
if (nread == -1) if (nread == -1) {
*len = 0;
return NULL; return NULL;
} else {
/* Get rid of the trailing \0, fgetln does not have it. */ *len = (size_t)nread;
(*len)--;
return line; return line;
}
} }
#endif #endif