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roken: snprintf properly account for char widths

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If a char width is specified the number of output buffer bytes
consumed might be greater than one.   Update append_char() to
return the number of bytes consumed and use that value in xyzprintf()
instead of one.
This commit is contained in:
Jeffrey Altman
2023-06-06 09:32:33 -04:00
parent c64d4ce968
commit adde2e5b4b
1 changed files with 2 additions and 3 deletions
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5
lib/roken/snprintf.c
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@@ -309,7 +309,7 @@ append_char(struct snprintf_state *state,
(*state->append_char) (state, ' '); (*state->append_char) (state, ' ');
++len; ++len;
} }
return 0; return len;
} }
/* /*
@@ -437,8 +437,7 @@ xyzprintf (struct snprintf_state *state, const char *char_format, va_list ap)
switch (c) { switch (c) {
case 'c' : case 'c' :
append_char(state, va_arg(ap, int), width, flags); len += append_char(state, va_arg(ap, int), width, flags);
++len;
break; break;
case 's' : case 's' :
len += append_string(state, len += append_string(state,