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getdelim—read a line up to a specified line delimiter #include <stdio.h>
int getdelim(char **bufptr, size_t *n,
int delim, FILE *fp);
Description
getdelim reads a file fp up to and possibly including a specified
delimiter delim. The line is read into a buffer pointed to
by bufptr and designated with size *n. If the buffer is
not large enough, it will be dynamically grown by getdelim.
As the buffer is grown, the pointer to the size n will be
updated.
Returns
getdelim returns -1 if no characters were successfully read;
otherwise, it returns the number of bytes successfully read.
At end of file, the result is nonzero.
Portability
getdelim is a glibc extension.
No supporting OS subroutines are directly required.