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Commit b77b77130ad1732903236e327b6f2665c7ade200

Authored by Perry Werneck
1 parent c119b21b
Exists in master and in 3 other branches develop, macos, network_module

Adjustments in selection to help the diagnose of segfaults on print 

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Showing 2 changed files with 47 additions and 3 deletions   Show diff stats
src/include/lib3270/selection.h
  Diff comments   View file @b77b771
... ... @@ -190,7 +190,7 @@
190 190 LIB3270_EXPORT int lib3270_get_selection_rectangle(H3270 *hSession, unsigned int *row, unsigned int *col, unsigned int *width, unsigned int *height);
191 191  
192 192 /**
193   - * @brief Get selection contents.
  193 + * @brief Create a new selection block.
194 194 *
195 195 * @param hSession Session handle.
196 196 * @param cut Non zero to clear selected contents.
... ... @@ -199,7 +199,19 @@
199 199 * @return NULL on error (sets errno), pointer to a rectangle containing the selected area (release it with lib3270_free).
200 200 *
201 201 */
202   - LIB3270_EXPORT lib3270_selection * lib3270_get_selection(H3270 *hSession, int cut, int all);
  202 + LIB3270_EXPORT lib3270_selection * lib3270_selection_new(H3270 *hSession, int cut, int all);
  203 +
  204 + LIB3270_EXPORT lib3270_selection * LIB3270_DEPRECATED(lib3270_get_selection(H3270 *hSession, int cut, int all));
  205 +
  206 + /**
  207 + * @brief Get the length of the selection block.
  208 + *
  209 + * @param selection Selection block.
  210 + *
  211 + * @return The length of the selection block.
  212 + *
  213 + */
  214 + LIB3270_EXPORT size_t lib3270_selection_get_length(const lib3270_selection *selection);
203 215  
204 216 /**
205 217 * @brief Get bitmasked flag for the current selection.
... ...
src/selection/get.c
  Diff comments   View file @b77b771
... ... @@ -31,6 +31,8 @@
31 31 #include <lib3270.h>
32 32 #include <lib3270/session.h>
33 33 #include <lib3270/selection.h>
  34 + #include <lib3270/trace.h>
  35 + #include <lib3270/log.h>
34 36 #include "3270ds.h"
35 37  
36 38 /*--[ Implement ]------------------------------------------------------------------------------------*/
... ... @@ -144,8 +146,23 @@ LIB3270_EXPORT char * lib3270_cut_selected(H3270 *hSession)
144 146 return lib3270_get_selected_text(hSession,0,LIB3270_SELECTION_CUT);
145 147 }
146 148  
  149 +static size_t get_selection_length(unsigned int width, unsigned int height)
  150 +{
  151 + return sizeof(lib3270_selection) + (sizeof(lib3270_selection_element) * ((width*height)+1));
  152 +}
  153 +
  154 +LIB3270_EXPORT size_t lib3270_selection_get_length(const lib3270_selection *selection)
  155 +{
  156 + return get_selection_length(selection->bounds.width,selection->bounds.height);
  157 +}
  158 +
147 159 LIB3270_EXPORT lib3270_selection * lib3270_get_selection(H3270 *hSession, int cut, int all)
148 160 {
  161 + return lib3270_selection_new(hSession,cut,all);
  162 +}
  163 +
  164 +LIB3270_EXPORT lib3270_selection * lib3270_selection_new(H3270 *hSession, int cut, int all)
  165 +{
149 166 if(check_online_session(hSession))
150 167 return NULL;
151 168  
... ... @@ -164,7 +181,10 @@ LIB3270_EXPORT lib3270_selection * lib3270_get_selection(H3270 *hSession, int cu
164 181 }
165 182  
166 183 // Get output buffer.
167   - lib3270_selection * selection = lib3270_malloc(sizeof(lib3270_selection) + (sizeof(lib3270_selection_element) * (width*height)));
  184 + size_t length = get_selection_length(width, height);
  185 + lib3270_selection * selection = lib3270_malloc(length);
  186 +
  187 + memset(selection,0,length);
168 188  
169 189 selection->bounds.col = col;
170 190 selection->bounds.row = row;
... ... @@ -172,6 +192,16 @@ LIB3270_EXPORT lib3270_selection * lib3270_get_selection(H3270 *hSession, int cu
172 192 selection->bounds.width = width;
173 193 selection->cursor_address = lib3270_get_cursor_address(hSession);
174 194  
  195 + debug(
  196 + "width=%u height=%u length=%u (sz=%u szHeader=%u szElement=%u)",
  197 + selection->bounds.width,
  198 + selection->bounds.height,
  199 + ((selection->bounds.width * selection->bounds.height) + 1),
  200 + (unsigned int) length,
  201 + (unsigned int) sizeof(lib3270_selection),
  202 + (unsigned int) sizeof(lib3270_selection_element)
  203 + );
  204 +
175 205 unsigned int dstaddr = 0;
176 206  
177 207 for(row=0;row < selection->bounds.height; row++)
... ... @@ -206,5 +236,7 @@ LIB3270_EXPORT lib3270_selection * lib3270_get_selection(H3270 *hSession, int cu
206 236  
207 237 }
208 238  
  239 + debug("dstaddr=%u length=%u",(unsigned int) dstaddr, (unsigned int) length);
  240 +
209 241 return selection;
210 242 }
... ...