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Added shell based CGI

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This commit is contained in:
Nate Choe
2022-06-11 18:24:39 -05:00
parent 581a4cba39
commit dffc415f52
2 changed files with 30 additions and 2 deletions
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3
src/include/config.h
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@@ -5,5 +5,8 @@
#define AUTOESCAPE_CHAR '\\' #define AUTOESCAPE_CHAR '\\'
#define NOMINIFY_CHAR '&' #define NOMINIFY_CHAR '&'
#define SEPARATOR_CHAR ',' #define SEPARATOR_CHAR ','
#define SHELL_CHAR '$'
#define ALLOW_SHELL
#define MAX_INCLUDE_DEPTH 10 #define MAX_INCLUDE_DEPTH 10

29
src/parse.c
View File

@@ -1,3 +1,9 @@
#include <config.h>
#ifdef ALLOW_SHELL
#define _POSIX_C_SOURCE 2
#endif
#include <ctype.h> #include <ctype.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
@@ -6,8 +12,6 @@
#include <vector.h> #include <vector.h>
#include <strings.h> #include <strings.h>
#include <config.h>
struct var { struct var {
struct string *var; struct string *var;
struct string *value; struct string *value;
@@ -128,6 +132,26 @@ autoescapeend:
fputc(data->data[i], out); fputc(data->data[i], out);
} }
break; break;
#ifdef ALLOW_SHELL
case SHELL_CHAR: {
FILE *process;
long start;
start = ++i;
while (data->data[i] != ESCAPE_CHAR)
++i;
data->data[i] = '\0';
process = popen(data->data + start, "r");
for (;;) {
int c;
c = fgetc(process);
if (c == EOF)
break;
mputc(&s, c, out);
}
pclose(process);
break;
}
#endif
} }
} }
else else
@@ -165,6 +189,7 @@ static int expandfile(struct expandfile *ret, char *filename, int level) {
goto error; goto error;
break; break;
case VAR_CHAR: case AUTOESCAPE_CHAR: case NOMINIFY_CHAR: case VAR_CHAR: case AUTOESCAPE_CHAR: case NOMINIFY_CHAR:
case SHELL_CHAR:
if (appendchar(ret->data, ESCAPE_CHAR)) if (appendchar(ret->data, ESCAPE_CHAR))
goto error; goto error;
for (;;) { for (;;) {