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26 lines
430 B
C
26 lines
430 B
C
#include <ctype.h>
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#include "string_patch.h"
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#ifdef HAVE_NO_STRCASESTR
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char *strcasestr(char *haystack, char *needle)
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{
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char *p, *startn = 0, *np = 0;
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for (p = haystack; *p; p++) {
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if (np) {
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if (toupper(*p) == toupper(*np)) {
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if (!*++np)
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return startn;
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} else
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np = 0;
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} else if (toupper(*p) == toupper(*needle)) {
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np = needle + 1;
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startn = p;
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}
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}
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return 0;
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}
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#endif
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