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gets, gets_s

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File input/output
Funktionen
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Functions
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Dateizugriff
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File access
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Direkte Eingabe / Ausgabe
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Direct input/output
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fread
fwrite
Unformatierte Eingang / Ausgang
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Unformatted input/output
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Formatierte Eingabe / Ausgabe
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Formatted input/output
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Datei Positionierung
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File positioning
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ftell
fgetpos
fseek
fsetpos
rewind
Fehlerbehandlung
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Error handling
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clearerr
feof
ferror
perror
Operationen auf Dateien
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Operations on files
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remove
rename
tmpfile
tmpnam
 
Defined in header <stdio.h>
char *gets( char *str );
char *gets_s(char *str, rsize_t n);
(Seit C11)(optional)
1)
Liest stdin in die Felder, auf die str bis ein Zeilenumbruch gefunden wird oder End-of-Datei auftritt. A
Original:
Reads stdin into the character array pointed to by str until a newline character is found or end-of-file occurs. A
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Nullzeichen unmittelbar nach dem letzten Zeichen in das Array zu lesen geschrieben .
Original:
null character is written immediately after the last character read into the array.
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2)
Liest höchstens n-1 Zeichen aus stdin in das Array, auf das str bis new-line Zeichen, End-of-File-Bedingung oder Lesefehler. Ein NULL-Zeichen wird sofort nach dem letzten Zeichen in das Array zu lesen geschrieben, oder str[0], wenn keine Zeichen gelesen wurden .
Original:
Reads at most n-1 characters from stdin into the array pointed to by str until new-line character, end-of-file condition, or read error. A null character is written immediately after the last character read into the array, or to str[0] if no characters were read.
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@ @ If n Null oder größer ist als RSIZE_MAX, ein Null-Zeichen wird str[0] geschrieben, aber die Funktion liest und verwirft Zeichen aus stdin bis new-line Zeichen, End-of-File-Bedingung, oder lesen Sie Fehler .
Original:
@@ If n is zero or is greater than RSIZE_MAX, a null character is written to str[0] but the function reads and discards characters from stdin until new-line character, end-of-file condition, or read error.
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@ @ If n-1 Zeichen gelesen wurden, liest weiter und verwirft die Zeichen aus stdin bis new-line Zeichen, End-of-File-Bedingung, oder lesen Sie Fehler .
Original:
@@ If n-1 characters have been read, continues reading and discarding the characters from stdin until new-line character, end-of-file condition, or read error.
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@ @ Die gets_s Funktion ist eine Erweiterung und ist optional. Es wird garantiert, dass nur vorhanden, wenn __STDC_LIB_EXT1__ definiert ist .
Original:
@@ The gets_s function is an extension and is optional. It is guaranteed to be present only if __STDC_LIB_EXT1__ is defined.
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Inhaltsverzeichnis

[Bearbeiten] Parameter

str -
Zeichenkette geschrieben werden soll
Original:
character string to be written
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[Bearbeiten] Rückgabewert

str bei Erfolg NULL anders
Original:
str on success, NULL otherwise
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[Bearbeiten] Notes

Die gets() Funktion führt keine Überprüfung der Grenzen, ist daher diese Funktion extrem anfällig für Buffer-Overflow-Attacken. Es kann nicht sicher verwendet werden (es sei denn, das Programm läuft in einem Umfeld, das, was man auf stdin erscheinen beschränkt). Aus diesem Grund wurde die Funktion in der dritten Berichtigung wurde der C99-Standard veraltet und ganz in der C11-Standard entfernt. fgets() und gets_s() sind die empfohlenen Ersatz .
Original:
The gets() function does not perform bounds checking, therefore this function is extremely vulnerable to buffer-overflow attacks. It cannot be used safely (unless the program runs in an environment which restricts what can appear on stdin). For this reason, the function has been deprecated in the third corrigendum to the C99 standard and removed altogether in the C11 standard. fgets() and gets_s() are the recommended replacements.
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Verwenden Sie niemals gets() .
Original:
Never use gets().
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[Bearbeiten] Siehe auch

liest formatierten Eingaben von stdin, eine Datei-Strom oder einen Puffer
Original:
reads formatted input from stdin, a file stream or a buffer
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(Funktion) [edit]
erhält eine Zeichenkette aus einem Datei-Stream
Original:
gets a character string from a file stream
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(Funktion) [edit]
schreibt eine Zeichenkette in einer Datei-Stream
Original:
writes a character string to a file stream
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(Funktion) [edit]