FreeCalypso > hg > freecalypso-tools

annotate target-utils/libprintf/sprintf.c @ 924:d452188587b4

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rvinterf: begin change to backslash escape output format Right now throughout the rvinterf suite, any time we emit output that is expected to be ASCII, but may contain non-printable garbage, we use 'cat -v' form of garbage character representation. Unfortunately, this transformation is lossy (can't be reversed 100% reliably in the user's wetware), hence we would like to migrate to C-style backslash escapes, including doubling of any already-present backslashes - this escape mechanism is lossless. Begin this change by converting the output of RV and L1 traces in rvinterf and rvtdump.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:10:50 +0000
parents e7502631a0f9
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1 #include <stdarg.h>
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3 extern void _sprintf_putchar();
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5 int
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6 sprintf(char *strdest, char *fmt, ...)
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7 {
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8 va_list ap;
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9 char *strptr;
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10 int len;
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12 strptr = strdest;
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13 va_start(ap, fmt);
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14 len = _doprnt(fmt, ap, &_sprintf_putchar, &strptr);
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15 va_end(ap);
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16 *strptr = '\0';
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17 return(len);
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18 }