a7b397295b
this is what you get to inherit if you insist on old versions. cross-port of r19.03's 0861ad591a96ad7246335c9cb35f51126874ea12.
95 lines
3.2 KiB
Diff
95 lines
3.2 KiB
Diff
--- a/src/allheaders.h
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+++ b/src/allheaders.h
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@@ -2600,6 +2600,7 @@
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LEPT_DLL extern char * stringReverse ( const char *src );
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LEPT_DLL extern char * strtokSafe ( char *cstr, const char *seps, char **psaveptr );
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LEPT_DLL extern l_int32 stringSplitOnToken ( char *cstr, const char *seps, char **phead, char **ptail );
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+LEPT_DLL extern l_int32 stringCheckForChars ( const char *src, const char *chars, l_int32 *pfound );
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LEPT_DLL extern char * stringRemoveChars ( const char *src, const char *remchars );
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LEPT_DLL extern l_int32 stringFindSubstr ( const char *src, const char *sub, l_int32 *ploc );
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LEPT_DLL extern char * stringReplaceSubstr ( const char *src, const char *sub1, const char *sub2, l_int32 *pfound, l_int32 *ploc );
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--- a/src/gplot.c
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+++ b/src/gplot.c
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@@ -141,9 +141,10 @@
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const char *xlabel,
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const char *ylabel)
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{
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-char *newroot;
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-char buf[L_BUF_SIZE];
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-GPLOT *gplot;
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+char *newroot;
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+char buf[L_BUF_SIZE];
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+l_int32 badchar;
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+GPLOT *gplot;
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PROCNAME("gplotCreate");
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@@ -152,6 +153,9 @@
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if (outformat != GPLOT_PNG && outformat != GPLOT_PS &&
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outformat != GPLOT_EPS && outformat != GPLOT_LATEX)
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return (GPLOT *)ERROR_PTR("outformat invalid", procName, NULL);
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+ stringCheckForChars(rootname, "`;&|><\"?*", &badchar);
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+ if (badchar) /* danger of command injection */
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+ return (GPLOT *)ERROR_PTR("invalid rootname", procName, NULL);
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if ((gplot = (GPLOT *)LEPT_CALLOC(1, sizeof(GPLOT))) == NULL)
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return (GPLOT *)ERROR_PTR("gplot not made", procName, NULL);
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--- a/src/utils2.c
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+++ b/src/utils2.c
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@@ -42,6 +42,7 @@
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* l_int32 stringSplitOnToken()
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*
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* Find and replace string and array procs
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+ * l_int32 stringCheckForChars()
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* char *stringRemoveChars()
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* l_int32 stringFindSubstr()
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* char *stringReplaceSubstr()
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@@ -701,6 +702,48 @@
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/*--------------------------------------------------------------------*
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* Find and replace procs *
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*--------------------------------------------------------------------*/
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+/*!
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+ * \brief stringCheckForChars()
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+ *
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+ * \param[in] src input string; can be of zero length
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+ * \param[in] chars string of chars to be searched for in %src
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+ * \param[out] pfound 1 if any characters are found; 0 otherwise
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+ * \return 0 if OK, 1 on error
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+ *
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+ * <pre>
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+ * Notes:
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+ * (1) This can be used to sanitize an operation by checking for
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+ * special characters that don't belong in a string.
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+ * </pre>
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+ */
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+l_int32
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+stringCheckForChars(const char *src,
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+ const char *chars,
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+ l_int32 *pfound)
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+{
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+char ch;
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+l_int32 i, n;
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+
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+ PROCNAME("stringCheckForChars");
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+
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+ if (!pfound)
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+ return ERROR_INT("&found not defined", procName, 1);
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+ *pfound = FALSE;
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+ if (!src || !chars)
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+ return ERROR_INT("src and chars not both defined", procName, 1);
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+
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+ n = strlen(src);
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+ for (i = 0; i < n; i++) {
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+ ch = src[i];
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+ if (strchr(chars, ch)) {
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+ *pfound = TRUE;
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+ break;
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+ }
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+ }
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+ return 0;
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+}
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+
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+
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/*!
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* \brief stringRemoveChars()
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*
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