| fgets.3 (32eef9aeb1f39a1623cea55da147c89abbd5b9a5) | fgets.3 (e125c135a88a6a1995006a1c03a8ebfcd7179c7c) |
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| 1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Chris Torek and the American National Standards Committee X3, 6.\" on Information Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without --- 118 unchanged lines hidden (view full) --- 127.Xr malloc 3 . 128.Pp 129The function 130.Fn gets 131may also fail and set 132.Va errno 133for any of the errors specified for the routine 134.Xr getchar 3 . | 1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" Chris Torek and the American National Standards Committee X3, 6.\" on Information Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without --- 118 unchanged lines hidden (view full) --- 127.Xr malloc 3 . 128.Pp 129The function 130.Fn gets 131may also fail and set 132.Va errno 133for any of the errors specified for the routine 134.Xr getchar 3 . |
| 135.Sh SECURITY CONSIDERATIONS 136The 137.Fn gets 138function cannot be used securely. 139Because of its lack of bounds checking, 140the use of this function enables malicious users 141to arbitrarily change a running program's functionality through 142a buffer overflow attack. 143(See 144the FSA.) |
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| 135.Sh SEE ALSO 136.Xr feof 3 , 137.Xr ferror 3 , 138.Xr fgetln 3 | 145.Sh SEE ALSO 146.Xr feof 3 , 147.Xr ferror 3 , 148.Xr fgetln 3 |
| 149.Rs 150.%T "The FreeBSD Security Architecture" 151.%J "/usr/share/doc/{to be determined}" 152.Re |
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| 139.Sh STANDARDS 140The functions 141.Fn fgets 142and 143.Fn gets 144conform to 145.St -isoC . 146.Sh BUGS --- 12 unchanged lines hidden --- | 153.Sh STANDARDS 154The functions 155.Fn fgets 156and 157.Fn gets 158conform to 159.St -isoC . 160.Sh BUGS --- 12 unchanged lines hidden --- |