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printf: replace strtonum with strtol functions in conversions

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Use strtol and strtoul respectively for d, i and o, u, x, X conversions.
This way we can convert other bases than 10, which strtonum doesn't
provide.
Also don't exit on conversion error but display a warning, set a return
error code, and continue.
This commit is contained in:
Quentin Rameau 2016-02-29 17:34:34 +01:00 committed by sin
parent 243cdb6669
commit 3da450e203
1 changed files with 21 additions and 3 deletions
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24
printf.c
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@ -1,5 +1,6 @@
/* See LICENSE file for copyright and license details. */
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
@ -21,7 +22,7 @@ main(int argc, char *argv[])
size_t i, j, argi, lastargi, formatlen;
long long num;
double dou;
int cooldown = 0, width, precision;
int cooldown = 0, width, precision, ret = 0;
char *format, *tmp, *arg, *fmt, flag;
argv0 = argv[0];
@ -134,8 +135,25 @@ main(int argc, char *argv[])
rarg = ereallocarray(NULL, utflen(arg) + 1, sizeof(*rarg));
utftorunestr(arg, rarg);
num = rarg[0];
} else if (arg[0]) {
errno = 0;
if (format[i] == 'd' || format[i] == 'i')
num = strtol(arg, &tmp, 0);
else
num = strtoul(arg, &tmp, 0);
if (tmp == arg || *tmp != '\0') {
ret = 1;
weprintf("%%%c %s: conversion error\n",
format[i], arg);
}
if (errno == ERANGE) {
ret = 1;
weprintf("%%%c %s: out of range\n",
format[i], arg);
}
} else {
num = (strlen(arg) > 0) ? estrtonum(arg, LLONG_MIN, LLONG_MAX) : 0;
num = 0;
}
fmt = estrdup(flag ? "%#*.*ll#" : "%*.*ll#");
if (flag)
@ -160,5 +178,5 @@ main(int argc, char *argv[])
cooldown = 1;
}
return fshut(stdout, "<stdout>");
return fshut(stdout, "<stdout>") | ret;
}