tcp: tcpdchk & tcpdmatch: warning fixes

[aprieger_llnw.com]

Summary

TCP Wrappers: tcpdchk (tcp wrapper configuration checker) and tcpdmatch (tcp wrapper oracle) warning fixes via edits to the C code files

[aprieger_llnw.com]

Changelog:

1. contrib/tcp_wrappers/fakelog.c
   • Warnings for each of functions: openlog( ), vsyslog( ), VARARGS( ), closelog( )
     • warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
     • warning: control reaches end of non-void function [-Wreturn-type]
   • Fixes:
     • Explicitly added specification of function type to void for each function, suppressing both warnings for each function listed
2. contrib/tcp_wrappers/inetcf.c
   • Warnings:
     • warning: incompativle redeclaration of library function 'malloc'
     • note: 'malloc' is a builtin with type 'void *(unsigned long)'
     • warning: implicit declaration of function 'check_path' is invalid in C99 [-Wimplicit-function-declaration]
   • Fixes:
     • Removed redeclaration of malloc on line 21
     • Included library <stdlib.h> in the code which contains the malloc( ) function in it's library
     • Included scaffold.h header file in the code that contains check-path( ) function
3. contrib/tcp_wrappers/scaffold.c
   • Warnings:
     • warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
     • note: include the header <stdlib.h> or explicitly provide a declaration for 'exit'
   • Fixes:
     • Included <stdlib.h> in the code which contains the exit( ) function in it's library
4. contrib/tcp_wrappers/tcpdchk.c
   • Warnings:
     • warning: implicit declaration of function 'getopt' is invalid in C99 [-Wimplicit-function-declaration]
     • warning: implicit declaration of function 'atoi' is invalid in C99 [-Wimplicit-function-declaration]
   • Fixes:
     • Included the specific function <getopt.h> library to the code
     • Included<stdlib.h> to the code which contains the atoi( ) function in the library
5. contrib/tcp_wrappers/tcpdmatch.c
   • Warnings:
     • warning: implicit declaration of function 'getopt' is invalid in C99 [-Wimplicit-function-declaration]
   • Fixes:
     • Included<stdlib.h> to the code which contains the getopt( ) function in the library

[vangyzen]

contrib/tcp_wrappers/tcpdchk.c

38

POSIX says getopt() is declared by <unistd.h>.

contrib/tcp_wrappers/tcpdmatch.c

34

POSIX says getopt() is declared by <unistd.h>.

[aprieger_llnw.com]

• tcp: tcpdchk & tcpdmatch: changed lib <getopt.h> to <unistd.h>

[aprieger_llnw.com]

1. contrib/tcp_wrappers/tcpdchk.c
   • Replaced the function <getopt.h> with the library containing the function <unistd.h>
2. contrib/tcp_wrappers/tcpdmatch.c
   • Replaced the function <getopt.h> with the library containing the function <unistd.h>

contrib/tcp_wrappers/tcpdchk.c

38

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