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Support loading kshcode from memory to support embedding #752

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Support loading kshcode from memory to support embedding #752

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e5fbb3e
make changes to sh_main to accept also kshcode which is in memory
HansH111 May 29, 2024
0dd33ff
removes errormsg when SCRIPTONLY=1
HansH111 May 29, 2024
fedfcb8
change old SF_ with SFIO_
HansH111 Jun 1, 2024
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2 changes: 1 addition & 1 deletion src/cmd/ksh93/include/defs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -175,7 +175,7 @@ extern char *sh_getcwd(void);

#if SHOPT_SCRIPTONLY
#define is_option(s,x) ((x)==SH_INTERACTIVE || (x)==SH_HISTORY ? 0 : ((s)->v[((x)&WMASK)/WBITS] & (1L << ((x) % WBITS))) )
#define on_option(s,x) ( (x)==SH_INTERACTIVE || (x)==SH_HISTORY ? errormsg(SH_DICT,ERROR_exit(1),e_scriptonly) : ((s)->v[((x)&WMASK)/WBITS] |= (1L << ((x) % WBITS))) )
#define on_option(s,x) ((x)==SH_INTERACTIVE || (x)==SH_HISTORY ? 0 : ((s)->v[((x)&WMASK)/WBITS] |= (1L << ((x) % WBITS))) )
#define off_option(s,x) ((x)==SH_INTERACTIVE || (x)==SH_HISTORY ? 0 : ((s)->v[((x)&WMASK)/WBITS] &= ~(1L << ((x) % WBITS))) )
#else
#define is_option(s,x) ((s)->v[((x)&WMASK)/WBITS] & (1L << ((x) % WBITS)))
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28 changes: 27 additions & 1 deletion src/cmd/ksh93/sh/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -107,7 +107,7 @@ static int sh_source(Sfio_t *iop, const char *file)
#define REMOTE(m) !(m)
#endif

int sh_main(int ac, char *av[], Shinit_f userinit)
int sh_mainex(int ac, char *av[], Shinit_f userinit,char *code,long codelen)
{
char *name;
int fdin;
Expand Down Expand Up @@ -231,6 +231,12 @@ int sh_main(int ac, char *av[], Shinit_f userinit)
shell_c:
iop = sfnew(NULL,sh.comdiv,strlen(sh.comdiv),0,SFIO_STRING|SFIO_READ);
}
else if(code && codelen) { /* read kshcode from memory */
sh.comdiv=code;
if (codelen == 1) codelen=strlen(code);
iop = sfnew(NULL,sh.comdiv,codelen,0,SFIO_STRING|SFIO_READ);
code=NULL;
}
else
{
name = error_info.id;
Expand Down Expand Up @@ -367,6 +373,26 @@ int sh_main(int ac, char *av[], Shinit_f userinit)
sh_done(0);
}

int sh_main(int ac, char *av[], Shinit_f userinit)
{
return sh_mainex(ac, av, userinit, NULL , 0);
}

int sh_maincode(int ac, char *av[], char *code)
{
if (code) {
long len;
char *ptr;
len=strlen(code);
ptr=(char *)sh_malloc(len+8);
if (ptr) {
strcpy(ptr,code);
return sh_mainex(ac, av, NULL,ptr,len);
}
}
return 0;
}

/*
* iop is not null when the input is a string
* fdin is the input file descriptor
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