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bugfix: Comparison of unsigned expression < 0 is always false

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see: https://github.com/HardySimpson/zlog/issues/15
This commit is contained in:
Hardy Simpson 2012-11-27 20:50:12 +08:00
parent 6851ff5c40
commit 98992c8ec0
2 changed files with 7 additions and 11 deletions
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17
src/buf.c
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@ -203,13 +203,10 @@ static int zlog_buf_resize(zlog_buf_t * a_buf, size_t increment)
a_buf->tail = NULL;
a_buf->end = NULL;
a_buf->end_plus_1 = NULL;
/* set size_real = -1, so other func know buf is unavailiable */
a_buf->size_real = -1;
return -1;
} else {
a_buf->start = p;
a_buf->tail = p + len;
//memset(a_buf->tail, 0x00, new_size - len);
a_buf->size_real = new_size;
a_buf->end_plus_1 = a_buf->start + new_size;
a_buf->end = a_buf->end_plus_1 - 1;
@ -224,7 +221,7 @@ int zlog_buf_vprintf(zlog_buf_t * a_buf, const char *format, va_list args)
size_t size_left;
int nwrite;
if (a_buf->size_real < 0) {
if (!a_buf->start) {
zc_error("pre-use of zlog_buf_resize fail, so can't convert");
return -1;
}
@ -286,7 +283,7 @@ int zlog_buf_printf_dec32(zlog_buf_t * a_buf, uint32_t ui32, int width)
unsigned char tmp[ZLOG_INT32_LEN + 1];
size_t num_len, zero_len, out_len;
if (a_buf->size_real < 0) {
if (!a_buf->start) {
zc_error("pre-use of zlog_buf_resize fail, so can't convert");
return -1;
}
@ -352,7 +349,7 @@ int zlog_buf_printf_dec64(zlog_buf_t * a_buf, uint64_t ui64, int width)
size_t num_len, zero_len, out_len;
uint32_t ui32;
if (a_buf->size_real < 0) {
if (!a_buf->start) {
zc_error("pre-use of zlog_buf_resize fail, so can't convert");
return -1;
}
@ -444,7 +441,7 @@ int zlog_buf_printf_hex(zlog_buf_t * a_buf, uint32_t ui32, int width)
static unsigned char hex[] = "0123456789abcdef";
//static unsigned char HEX[] = "0123456789ABCDEF";
if (a_buf->size_real < 0) {
if (!a_buf->start) {
zc_error("pre-use of zlog_buf_resize fail, so can't convert");
return -1;
}
@ -523,11 +520,11 @@ int zlog_buf_append(zlog_buf_t * a_buf, const char *str, size_t str_len)
if (str_len <= 0 || str == NULL) {
return 0;
}
#endif
if (a_buf->size_real < 0) {
if (!a_buf->start) {
zc_error("pre-use of zlog_buf_resize fail, so can't convert");
return -1;
}
#endif
if ((p = a_buf->tail + str_len) > a_buf->end) {
int rc;
@ -572,7 +569,7 @@ int zlog_buf_adjust_append(zlog_buf_t * a_buf, const char *str, size_t str_len,
}
#endif
if (a_buf->size_real < 0) {
if (!a_buf->start) {
zc_error("pre-use of zlog_buf_resize fail, so can't convert");
return -1;
}

1
src/makefile
View File

@ -125,7 +125,6 @@ static: $(STLIBNAME)
# Binaries:
zlog-chk-conf: zlog-chk-conf.o $(STLIBNAME) $(DYLIBNAME)
ls -l libzlog.so
$(CC) -o $@ $(REAL_CFLAGS) zlog-chk-conf.o -L. -lzlog $(REAL_LDFLAGS)
.c.o: