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tests: add print_quoted_string function to libtests

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* tests/tests.h (print_quoted_string): New prototype.
* tests/print_quoted_string.c: New file.
* tests/Makefile.am (libtests_a_SOURCES): Add it.
This commit is contained in:
JayRJoshi 2016-03-23 19:04:15 +05:30 committed by Dmitry V. Levin
parent 032a9a4358
commit 17654da621
3 changed files with 71 additions and 0 deletions
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1
tests/Makefile.am
View File

@ -46,6 +46,7 @@ libtests_a_SOURCES = \
hexdump_strdup.c \
hexquote_strndup.c \
inode_of_sockfd.c \
print_quoted_string.c \
tail_alloc.c \
tests.h \
tprintf.c \

67
tests/print_quoted_string.c Normal file
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@ -0,0 +1,67 @@
#include "tests.h"
#include <stdio.h>
#include <stdlib.h>
/*
* Based on string_quote() from util.c.
* Assumes instr is NUL-terminated.
*/
void
print_quoted_string(const char *instr)
{
const unsigned char *str = (const unsigned char*) instr;
int c;
while ((c = *(str++))) {
switch (c) {
case '\"':
printf("\\\"");
break;
case '\\':
printf("\\\\");
break;
case '\f':
printf("\\f");
break;
case '\n':
printf("\\n");
break;
case '\r':
printf("\\r");
break;
case '\t':
printf("\\t");
break;
case '\v':
printf("\\v");
break;
default:
if (c >= ' ' && c <= 0x7e)
putchar(c);
else {
putchar('\\');
char c1 = '0' + (c & 0x7);
char c2 = '0' + ((c >> 3) & 0x7);
char c3 = '0' + (c >> 6);
if (*str >= '0' && *str <= '9') {
/* Print \octal */
putchar(c3);
putchar(c2);
} else {
/* Print \[[o]o]o */
if (c3 != '0')
putchar(c3);
if (c3 != '0' || c2 != '0')
putchar(c2);
}
putchar(c1);
}
break;
}
}
}

3
tests/tests.h
View File

@ -75,6 +75,9 @@ const char *hexquote_strndup(const char *, size_t);
/* Return inode number of socket descriptor. */
unsigned long inode_of_sockfd(int);
/* Print string in quoted form. */
void print_quoted_string(const char *str);
# define ARRAY_SIZE(arg) ((unsigned int) (sizeof(arg) / sizeof((arg)[0])))
# define LENGTH_OF(arg) ((unsigned int) sizeof(arg) - 1)