Merge pull request neurobin#70 from mathieu-aubin/master

.gitignore

@@ -1,3 +1,8 @@
+src/.deps
+src/shc
+src/shc.o
+*Makefile
+config.status
 /build
 /autom4te.cache
 *.scan

README.md

@@ -55,7 +55,7 @@ make
 make check
 ```
 
-## Known bugs
+## Known limitations
 
 The one (and I hope the only) limitation using shc is the _SC_ARG_MAX system configuration parameter.
 It limits the maximum length of the arguments to the exec function, limiting the maximum length of the runnable script of shc.

shc.1

@@ -1,7 +1,4 @@
-.\" Automatically generated by Pandoc 1.19.2.4
-.\"
-.TH "shc" "1" "November 20, 2018" "shc user manual" ""
-.hy
+.TH "shc" "1" "January 14, 2019" "shc user manual" ""
 .SH NAME
 .PP
 shc \- Generic shell script compiler
@@ -51,130 +48,69 @@ modification or inspection.
 You can use it if you wish to distribute your scripts but don\[aq]t want
 them to be easily readable by other people.
 .SH OPTIONS
-.TP
-.B \-e \f[I]date\f[]
-Expiration date in \f[I]dd/mm/yyyy\f[] format \f[C][none]\f[]
-.RS
-.RE
-.TP
-.B \-m \f[I]message\f[]
-message to display upon expiration
+.PP
+\-e \f[I]date\f[] : Expiration date in \f[I]dd/mm/yyyy\f[] format
+\f[C][none]\f[]
+.PP
+\-m \f[I]message\f[] : message to display upon expiration
 \f[C]["Please\ contact\ your\ provider"]\f[]
-.RS
-.RE
-.TP
-.B \-f \f[I]script_name\f[]
-File path of the script to compile
-.RS
-.RE
-.TP
-.B \-i \f[I]inline_option\f[]
-Inline option for the shell interpreter i.e: \f[C]\-e\f[]
-.RS
-.RE
-.TP
-.B \-x \f[I]command\f[]
-eXec command, as a printf format i.e:
+.PP
+\-f \f[I]script_name\f[] : File path of the script to compile
+.PP
+\-i \f[I]inline_option\f[] : Inline option for the shell interpreter
+i.e: \f[C]\-e\f[]
+.PP
+\-x \f[I]command\f[] : eXec command, as a printf format i.e:
 \f[C]exec(\\\\\[aq]%s\\\\\[aq],\@ARGV);\f[]
-.RS
-.RE
-.TP
-.B \-l \f[I]last_option\f[]
-Last shell option i.e: \f[C]\-\-\f[]
-.RS
-.RE
-.TP
-.B \-o \f[I]outfile\f[]
-output to the file specified by outfile
-.RS
-.RE
-.TP
-.B \-r
-Relax security.
+.PP
+\-l \f[I]last_option\f[] : Last shell option i.e: \f[C]\-\-\f[]
+.PP
+\-o \f[I]outfile\f[] : output to the file specified by outfile
+.PP
+\-r : Relax security.
 Make a redistributable binary which executes on different systems
 running the same operating system.
 You can release your binary with this option for others to use
-.RS
-.RE
-.TP
-.B \-v
-Verbose compilation
-.RS
-.RE
-.TP
-.B \-S
-Switch ON setuid for root callable programs [OFF]
-.RS
-.RE
-.TP
-.B \-D
-Switch on debug exec calls
-.RS
-.RE
-.TP
-.B \-U
-Make binary to be untraceable (using \f[I]strace\f[], \f[I]ptrace\f[],
-\f[I]truss\f[], etc.)
-.RS
-.RE
-.TP
-.B \-H
-Hardening.
+.PP
+\-v : Verbose compilation
+.PP
+\-S : Switch ON setuid for root callable programs [OFF]
+.PP
+\-D : Switch on debug exec calls
+.PP
+\-U : Make binary to be untraceable (using \f[I]strace\f[],
+\f[I]ptrace\f[], \f[I]truss\f[], etc.)
+.PP
+\-H : Hardening.
 Extra security flag without root access requirement that protects
 against dumping, code injection, \f[C]cat\ /proc/pid/cmdline\f[],
 ptrace, etc..
 This feature is \f[B]experimental\f[] and may not work on all systems.
 This option currently only works with Bourne shell (sh) scripts without
 any positional parameters.
-.RS
-.RE
-.TP
-.B \-s
-Hardening with single process.
+.PP
+\-s : Hardening with single process.
 Requires \-H option, runs the binary in a single process, shell is
 called in the main process otherwise its called in a child process.
 This feature is \f[B]experimental\f[] (may hang) and may not work on all
 systems.
 This option currently only works with Bourne shell (sh) scripts without
 any positional parameters.
-.RS
-.RE
-.TP
-.B \-C
-Display license and exit
-.RS
-.RE
-.TP
-.B \-A
-Display abstract and exit
-.RS
-.RE
-.TP
-.B \-B
-Compile for BusyBox
-.RS
-.RE
-.TP
-.B \-h
-Display help and exit
-.RS
-.RE
+.PP
+\-C : Display license and exit
+.PP
+\-A : Display abstract and exit
+.PP
+\-B : Compile for BusyBox
+.PP
+\-h : Display help and exit
 .SH ENVIRONMENT VARIABLES
-.TP
-.B CC
-C compiler command \f[C][cc]\f[]
-.RS
-.RE
-.TP
-.B CFLAGS
-C compiler flags \f[C][none]\f[]
-.RS
-.RE
-.TP
-.B LDFLAGS
-Linker flags \f[C][none]\f[]
-.RS
-.RE
+.PP
+CC : C compiler command \f[C][cc]\f[]
+.PP
+CFLAGS : C compiler flags \f[C][none]\f[]
+.PP
+LDFLAGS : Linker flags \f[C][none]\f[]
 .SH EXAMPLES
 .PP
 Compile a script which can be run on other systems with the trace option
@@ -202,7 +138,7 @@ Compile an untraceable binary that doesn\[aq]t require root access
 shc\ \-Hf\ myscript\ \-o\ mybinary
 \f[]
 .fi
-.SH BUGS
+.SH LIMITATIONS
 .PP
 The maximum size of the script that could be executed once compiled is
 limited by the operating system configuration parameter