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12345678910111213141516171819 | #include <string.h> #include <errno.h> int strerror_r(int err, char *buf, size_t buflen) { char *msg = strerror(err); size_t l = strlen(msg); if (l >= buflen) { if (buflen) { memcpy(buf, msg, buflen-1); buf[buflen-1] = 0; } return ERANGE; } memcpy(buf, msg, l+1); return 0; } weak_alias(strerror_r, __xpg_strerror_r);
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