Revert "Initial commit - work done up through 11 Feb 2020"
This reverts commit 2bc7401904
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This commit is contained in:
parent
2bc7401904
commit
56f77cf071
27 changed files with 0 additions and 478 deletions
107
stdio/printf.c
107
stdio/printf.c
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@ -1,107 +0,0 @@
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#include <limits.h>
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#include <stdbool.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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static bool print(const char * str, size_t len) {
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const unsigned char * bytes = (const unsigned char *) str;
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for(size_t i = 0; i < len; i++) {
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if(putchar(bytes[i]) == EOF) {
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return false;
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}
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}
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return true;
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}
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int printf(const char * restrict format, ...) {
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va_list parameters;
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va_start(parameters, format);
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int written = 0;
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while(*format != '\0') {
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size_t maxrem = INT_MAX - written;
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if(format[0] != '%' || format[1] == '%') {
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if(format[0] == '%') {
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format++;
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}
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size_t amount = 1;
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while(format[amount] && format[amount] != '%') {
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amount++;
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}
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if(maxrem < amount) {
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/* TODO: Set errno to EOVERFLOW after implementing errno.h */
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return -1;
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}
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if(!print(format, amount)) {
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return -1;
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}
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format += amount;
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written += amount;
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continue;
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}
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const char * format_begun_at = format++;
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/* TODO: Implement all format specifiers (%g, %o, &c.) */
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if(*format == 'c') {
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format++;
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char c = (char) va_arg(parameters, int);
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if(!maxrem) {
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/* TODO: Set errno to EOVERFLOW after implementing errno.h */
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return -1;
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}
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if(!print(&c, sizeof(c))) {
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return -1;
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}
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written++;
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}
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else if(*format == 's') {
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format++;
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const char * str = va_arg(parameters, const char *);
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size_t len = strlen(str);
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if(maxrem < len) {
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/* TODO: Set errno to EOVERFLOW after implementing errno.h */
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return -1;
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}
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if(!print(str, len)) {
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return -1;
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}
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written += len;
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}
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else {
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format = format_begun_at;
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size_t len = strlen(format);
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if(maxrem < len) {
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/* TODO: Set errno to EOVERFLOW after implementing errno.h */
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return -1;
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}
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if(!print(format, len)) {
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return -1;
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}
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format += len;
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}
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}
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va_end(parameters);
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return(written);
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}
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@ -1,6 +0,0 @@
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stdio/printf.libk.o: stdio/printf.c \
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/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include-fixed/limits.h \
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/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include/stdbool.h \
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/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include/stdarg.h \
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include/stdio.h include/sys/cdefs.h include/string.h \
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/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include/stddef.h
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@ -1,16 +0,0 @@
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#include <stdio.h>
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#ifdef __is_libk
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#include <kernel/tty.h>
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#endif
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int putchar(int ic) {
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#ifdef __is_libk
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char c = (char) ic;
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term_write(&c, sizeof(c));
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#else
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/* TODO: Implement write system call to do this part */
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#endif
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return ic;
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}
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stdio/putchar.libk.o: stdio/putchar.c include/stdio.h include/sys/cdefs.h \
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/home/helmsulfrinn/Documents/projects/coding/active/fenix/sysroot/usr/include/kernel/tty.h \
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/usr/home/helmsulfrinn/opt/cross/lib/gcc/i686-elf/9.2.0/include/stddef.h
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@ -1,5 +0,0 @@
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#include <stdio.h>
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int puts(const char * string) {
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return printf("%s\n", string);
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}
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@ -1 +0,0 @@
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stdio/puts.libk.o: stdio/puts.c include/stdio.h include/sys/cdefs.h
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