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annotate dbhelpers.h @ 1630:9579377b5f8b

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use strlcpy & strlcat (#74) * refactor checkpubkeyperms() with safe BSD functions fix gcc8 warnings ``` svr-authpubkey.c: In function 'checkpubkeyperms': svr-authpubkey.c:427:2: warning: 'strncat' specified bound 5 equals source length [-Wstringop-overflow=] strncat(filename, "/.ssh", 5); /* strlen("/.ssh") == 5 */ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ svr-authpubkey.c:433:2: warning: 'strncat' specified bound 16 equals source length [-Wstringop-overflow=] strncat(filename, "/authorized_keys", 16); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``` see https://www.sudo.ws/todd/papers/strlcpy.html * restore strlcpy in xstrdup see original https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/xmalloc.c?rev=1.16
author François Perrad <francois.perrad@gadz.org>
date Wed, 20 Mar 2019 15:09:19 +0100
parents d68d61e7056a
children
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3017bc7d6238 move m_burn and function attributes to dbhelpers
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1 #ifndef DROPBEAR_DBHELPERS_H_
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2 #define DROPBEAR_DBHELPERS_H_
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3
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4 /* This header defines some things that are also used by libtomcrypt/math.
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5 We avoid including normal include.h since that can result in conflicting
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d68d61e7056a include config.h for options.h. don't need to include options.h when
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6 definitions - only include config.h */
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7 #include "config.h"
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8
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9 #ifdef __GNUC__
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10 #define ATTRIB_PRINTF(fmt,args) __attribute__((format(printf, fmt, args)))
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11 #define ATTRIB_NORETURN __attribute__((noreturn))
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12 #define ATTRIB_SENTINEL __attribute__((sentinel))
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13 #else
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14 #define ATTRIB_PRINTF(fmt,args)
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15 #define ATTRIB_NORETURN
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16 #define ATTRIB_SENTINEL
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17 #endif
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18
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19 void m_burn(void* data, unsigned int len);
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21 #endif /* DROPBEAR_DBHELPERS_H_ */