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implemented pax11publish.c

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@275 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-11-08 23:48:19 +00:00
parent b55923a8d3
commit 4bb14837dd
10 changed files with 379 additions and 20 deletions
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41
polyp/util.c
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@ -732,3 +732,44 @@ char *pa_hexstr(const uint8_t* d, size_t dlength, char *s, size_t slength) {
s[j < slength ? j : slength] = 0;
return s;
}
/* Convert a hexadecimal digit to a number or -1 if invalid */
static int hexc(char c) {
if (c >= '0' && c <= '9')
return c - '0';
if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
return -1;
}
/* Parse a hexadecimal string as created by pa_hexstr() to a BLOB */
size_t pa_parsehex(const char *p, uint8_t *d, size_t dlength) {
size_t j = 0;
assert(p && d);
while (j < dlength && *p) {
int b;
if ((b = hexc(*(p++))) < 0)
return (size_t) -1;
d[j] = (uint8_t) (b << 4);
if (!*p)
return (size_t) -1;
if ((b = hexc(*(p++))) < 0)
return (size_t) -1;
d[j] |= (uint8_t) b;
j++;
}
return j;
}