9a82261e4a
The code in testcase memberin_extend_c would end up without a terminating nul if passed a 50 byte string, and then make_upper() would run off the end of the buffer. Fix by using strncat() (which always nul terminates the result, and also doesn't zero-fill the tail of the buffer if the result is shorter).
39 lines
670 B
OpenEdge ABL
39 lines
670 B
OpenEdge ABL
%module memberin_extend_c
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/* Example from the Manual, section 5.5.6: "Adding member functions to C structures" */
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%{
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typedef struct {
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char name[50];
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} Person;
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%}
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typedef struct {
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%extend {
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char name[50];
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}
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} Person;
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%{
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#include <ctype.h>
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#include <string.h>
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void make_upper(char *name) {
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char *c;
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for (c = name; *c; ++c)
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*c = (char)toupper((int)*c);
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}
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/* Specific implementation of set/get functions forcing capitalization */
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char *Person_name_get(Person *p) {
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make_upper(p->name);
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return p->name;
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}
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void Person_name_set(Person *p, char *val) {
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p->name[0] = '\0';
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strncat(p->name, val, sizeof(p->name) - 1);
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make_upper(p->name);
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}
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%}
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