osf1 man page for gets

gets(3) 						     Library Functions Manual							   gets(3)

NAME
       gets, fgets - Get a string from a stream

LIBRARY
       Standard C Library (libc.so, libc.a)

SYNOPSIS
       #include <stdio.h>

       char *gets(
	       char *string);

       char *fgets(
	       char *string,
	       int n,
	       FILE *stream);

STANDARDS
       Interfaces documented on this reference page conform to industry standards as follows:

       gets(), fgets():  XPG4, XPG4-UNIX

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

PARAMETERS
       Points  to  a  string  to receive bytes.  Specifies an upper bound on the number of bytes to read.  Points to the FILE structure of an open
       file.

DESCRIPTION
       The gets() function reads bytes from the standard input stream, stdin, into the array pointed to by the	string	parameter.  Data  is  read
       until a newline character is read or an end-of-file condition is encountered. If reading is stopped due to a newline character, the newline
       character is discarded and the string is terminated with a null byte.

       The fgets() function reads bytes from the data pointed to by the stream parameter into the array pointed to by the string  parameter.  Data
       is  read  until n-1 bytes have been read, until a newline character is read and transferred to string, or until an end-of-file condition is
       encountered. The string is then terminated with a null byte.

NOTES
       The gets() function does not check the input for a maximum size. Consequently, if more bytes are entered than will fit in the  space  allo-
       cated  for  the	string	parameter, gets() will write beyond the end of the allocated space, producing indeterminate results. To avoid this
       condition, use fgets() instead of gets().

RETURN VALUES
       Upon successful completion, the gets() and fgets() functions return string. If the stream is at end-of-file, the end-of-file indicator  for
       the  stream  is	set  and a null pointer is returned.  If a read error occurs, the error indicator for the stream is set, a null pointer is
       returned, and errno is set to indicate the error.

ERRORS
       The fgets() and gets() functions set errno to the specified value for the following conditions: The O_NONBLOCK flag is set for the underly-
       ing  stream and the process would be delayed by the read operation.  The file descriptor underlying the stream is not a valid file descrip-
       tor or is not open for reading.	The read operation was interrupted by a signal which was caught and no data was transferred.  The call	is
       attempting to read from the process's controlling terminal and either the process is ignoring or blocking the SIGTTIN signal or the process
       group is orphaned.  Insufficient memory is available for the operation.	The device associated with stream does not exist.

RELATED INFORMATION
       Functions: clearerr(3), feof(3), ferror(3), fgetws(3), fileno(3), fopen(3), fputws(3), fread(3), getc(3), getwc(3), puts(3), scanf(3)

       Standards: standards(5) delim off

																	   gets(3)