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annotate uptools/libcoding/utf8_decode.c @ 1011:6d9b10633f10 default tip

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etmsync Pirelli IMEI retrieval: fix poor use of printf() Bug reported by Vadim Yanitskiy <fixeria@osmocom.org>: the construct where a static-allocated string was passed to printf() without any format arguments causes newer compilers to report a security problem. Given that formatted output is not needed here, just fixed string output, change printf() to fputs(), and direct the error message to stderr while at it.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 23 May 2024 17:29:57 +0000
parents ec0d6d58e043
children
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ec0d6d58e043 uptools/libcoding: UTF-8 input conversion to 8859-1 implemented
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * This library module implements a function that converts text input
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3 * from UTF-8 to ISO 8859-1, rejecting any input Unicode characters
ec0d6d58e043 uptools/libcoding: UTF-8 input conversion to 8859-1 implemented
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4 * that aren't in the 8859-1 range. The conversion in done in place.
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5 */
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6
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7 #include <sys/types.h>
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8
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9 utf8_to_latin1(buf)
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10 u_char *buf;
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11 {
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12 u_char *ip = buf, *op = buf;
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13 int c, c2;
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14
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15 while (c = *ip++) {
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16 if (c < 0x80) {
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17 *op++ = c;
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18 continue;
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19 }
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20 if (c != 0xC2 && c != 0xC3)
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21 return(-1);
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22 c2 = *ip++;
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23 if (c2 < 0x80 || c2 > 0xBF)
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24 return(-1);
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25 *op++ = ((c & 3) << 6) | (c2 & 0x3F);
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26 }
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27 *op = '\0';
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28 return(0);
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29 }