X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Futils_cgi.c;h=7c01bd9862a62518d679090948e57a755d29e41c;hb=559db522731e674dbdad045d0e65b9376e2f91f4;hp=3fe7e183f264b787b90469fe87fa82178255af09;hpb=9740ba29aa604e3cc2e75d37b8af3ba5fcb571c9;p=collection4.git
diff --git a/src/utils_cgi.c b/src/utils_cgi.c
index 3fe7e18..7c01bd9 100644
--- a/src/utils_cgi.c
+++ b/src/utils_cgi.c
@@ -104,6 +104,7 @@ static char *uri_unescape_copy (char *dest, const char *src, size_t n) /* {{{ */
*dest_ptr = *src_ptr;
}
+ n--;
src_ptr++;
dest_ptr++;
*dest_ptr = 0;
@@ -111,7 +112,7 @@ static char *uri_unescape_copy (char *dest, const char *src, size_t n) /* {{{ */
assert (*dest_ptr == 0);
return (dest);
-} /* }}} char *uri_unescape */
+} /* }}} char *uri_unescape_copy */
static char *uri_unescape (const char *string) /* {{{ */
{
@@ -473,6 +474,89 @@ char *uri_escape (const char *string) /* {{{ */
return (strdup (buffer));
} /* }}} char *uri_escape */
+#define COPY_ENTITY(e) do { \
+ size_t len = strlen (e); \
+ if (dest_size < (len + 1)) \
+ break; \
+ strcpy (dest_ptr, (e)); \
+ dest_ptr += len; \
+ dest_size -= len; \
+} while (0)
+
+char *json_escape_copy (char *dest, const char *src, size_t n) /* {{{ */
+{
+ char *dest_ptr;
+ size_t dest_size;
+ size_t pos;
+
+ dest[0] = 0;
+ dest_ptr = dest;
+ dest_size = n;
+ for (pos = 0; src[pos] != 0; pos++)
+ {
+ if (src[pos] == '"')
+ COPY_ENTITY ("\\\"");
+ else if (src[pos] == '\\')
+ COPY_ENTITY ("\\\\");
+ else if (((uint8_t) src[pos]) < 32)
+ {
+ if (src[pos] == '\n')
+ COPY_ENTITY ("\\n");
+ else if (src[pos] == '\r')
+ COPY_ENTITY ("\\r");
+ else if (src[pos] == '\t')
+ COPY_ENTITY ("\\t");
+ else if (src[pos] == '\b')
+ COPY_ENTITY ("\\b");
+ else if (src[pos] == '\f')
+ COPY_ENTITY ("\\f");
+ else
+ {
+ char buffer[8];
+ sprintf (buffer, "\\u%04"PRIx8, (uint8_t) src[pos]);
+ buffer[sizeof (buffer) - 1] = 0;
+ COPY_ENTITY (buffer);
+ }
+ }
+ else
+ {
+ *dest_ptr = src[pos];
+ dest_ptr++;
+ dest_size--;
+ *dest_ptr = 0;
+ }
+
+ if (dest_size <= 1)
+ break;
+ }
+
+ return (dest);
+} /* }}} char *json_escape_copy */
+
+#undef COPY_ENTITY
+
+char *json_escape_buffer (char *buffer, size_t buffer_size)
+{
+ char temp[buffer_size];
+
+ json_escape_copy (temp, buffer, buffer_size);
+ memcpy (buffer, temp, buffer_size);
+
+ return (buffer);
+} /* }}} char *json_escape_buffer */
+
+char *json_escape (const char *string) /* {{{ */
+{
+ char buffer[4096];
+
+ if (string == NULL)
+ return (NULL);
+
+ json_escape_copy (buffer, string, sizeof (buffer));
+
+ return (strdup (buffer));
+} /* }}} char *json_escape */
+
const char *script_name (void) /* {{{ */
{
char *ret;
@@ -504,11 +588,11 @@ int time_to_rfc1123 (time_t t, char *buffer, size_t buffer_size) /* {{{ */
#define COPY_ENTITY(e) do { \
size_t len = strlen (e); \
- if (dest_size < (len + 1)) \
+ if (dest_size < (len + 1)) \
break; \
- strcpy (dest_ptr, (e)); \
- dest_ptr += len; \
- dest_size -= len; \
+ strcpy (dest_ptr, (e)); \
+ dest_ptr += len; \
+ dest_size -= len; \
} while (0)
char *html_escape_copy (char *dest, const char *src, size_t n) /* {{{ */
@@ -579,7 +663,7 @@ int html_print_page (const char *title, /* {{{ */
"\n\n");
if (title == NULL)
- title = "c4: collection4 graph interface";
+ title = "C₄: collection4 graph interface";
title_html = html_escape (title);
@@ -654,7 +738,7 @@ int html_print_page (const char *title, /* {{{ */
int html_print_logo (__attribute__((unused)) void *user_data) /* {{{ */
{
printf ("\n"
- " c4
\n"
+ " C4
\n"
"