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46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
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/* File ggets.h - goodgets is a safe alternative to gets */
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/* By C.B. Falconer. Public domain 2002-06-22 */
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/* attribution appreciated. */
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/* Revised 2002-06-26 New prototype.
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2002-06-27 Incomplete final lines
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*/
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/* fggets and ggets [which is fggets(ln, stdin)] set *ln to
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a buffer filled with the next complete line from the text
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stream f. The storage has been allocated within fggets,
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and is normally reduced to be an exact fit. The trailing
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\n has been removed, so the resultant line is ready for
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dumping with puts. The buffer will be as large as is
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required to hold the complete line.
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Note: this means a final file line without a \n terminator
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has an effective \n appended, as EOF occurs within the read.
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If no error occurs fggets returns 0. If an EOF occurs on
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the input file, EOF is returned. For memory allocation
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errors some positive value is returned. In this case *ln
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may point to a partial line. For other errors memory is
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freed and *ln is set to NULL.
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Freeing of assigned storage is the callers responsibility
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*/
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#ifndef ggets_h_
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# define ggets_h_
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# ifdef __cplusplus
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extern "C" {
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# endif
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int fggets(char* *ln, FILE *f);
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#define ggets(ln) fggets(ln, stdin)
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# ifdef __cplusplus
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}
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# endif
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#endif
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/* END ggets.h */
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