Last change
on this file since 519 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.1 KB
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Rev | Line | |
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[444] | 1 | /* Copyright 2002, Red Hat Inc. - all rights reserved */ |
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| 2 | /* |
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| 3 | FUNCTION |
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| 4 | <<getline>>---read a line from a file |
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| 5 | |
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| 6 | INDEX |
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| 7 | getline |
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| 8 | |
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| 9 | SYNOPSIS |
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| 10 | #include <stdio.h> |
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| 11 | ssize_t getline(char **<[bufptr]>, size_t *<[n]>, FILE *<[fp]>); |
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| 12 | |
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| 13 | DESCRIPTION |
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| 14 | <<getline>> reads a file <[fp]> up to and possibly including the |
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| 15 | newline character. The line is read into a buffer pointed to |
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| 16 | by <[bufptr]> and designated with size *<[n]>. If the buffer is |
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| 17 | not large enough, it will be dynamically grown by <<getdelim>>. |
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| 18 | As the buffer is grown, the pointer to the size <[n]> will be |
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| 19 | updated. |
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| 20 | |
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| 21 | <<getline>> is equivalent to getdelim(bufptr, n, '\n', fp); |
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| 22 | |
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| 23 | RETURNS |
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| 24 | <<getline>> returns <<-1>> if no characters were successfully read, |
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| 25 | otherwise, it returns the number of bytes successfully read. |
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| 26 | at end of file, the result is nonzero. |
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| 27 | |
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| 28 | PORTABILITY |
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| 29 | <<getline>> is a glibc extension. |
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| 30 | |
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| 31 | No supporting OS subroutines are directly required. |
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| 32 | */ |
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| 33 | |
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| 34 | #include <_ansi.h> |
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| 35 | #include <stdio.h> |
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| 36 | |
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| 37 | extern ssize_t __getdelim (char **, size_t *, int, FILE *); |
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| 38 | |
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| 39 | ssize_t |
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| 40 | __getline (char **lptr, |
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| 41 | size_t *n, |
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| 42 | FILE *fp) |
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| 43 | { |
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| 44 | return __getdelim (lptr, n, '\n', fp); |
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| 45 | } |
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| 46 | |
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