53 decode_quoted_printable(const char *body, FILE *fpo)  in decode_quoted_printable()  argument
55 	while (*body != '\0') {  in decode_quoted_printable()
56 		switch (*body) {  in decode_quoted_printable()
58 			if (strlen(body) < 2) {  in decode_quoted_printable()
59 				fputc(*body, fpo);  in decode_quoted_printable()
63 			if (body[1] == '\r' && body[2] == '\n') {  in decode_quoted_printable()
64 				body += 2;  in decode_quoted_printable()
67 			if (body[1] == '\n') {  in decode_quoted_printable()
68 				body++;  in decode_quoted_printable()
71 			if (strchr("0123456789ABCDEFabcdef", body[1]) == NULL) {  in decode_quoted_printable()
72 				fputc(*body, fpo);  in decode_quoted_printable()
75 			if (strchr("0123456789ABCDEFabcdef", body[2]) == NULL) {  in decode_quoted_printable()
76 				fputc(*body, fpo);  in decode_quoted_printable()
79 			fputc(decode_char(body), fpo);  in decode_quoted_printable()
80 			body += 2;  in decode_quoted_printable()
83 			fputc(*body, fpo);  in decode_quoted_printable()
86 		body++;  in decode_quoted_printable()
91 encode_quoted_printable(const char *body, FILE *fpo)  in encode_quoted_printable()  argument
93 	const char *end = body + strlen(body);  in encode_quoted_printable()
97 	while (*body != '\0') {  in encode_quoted_printable()
102 		if (!isascii(*body) ||  in encode_quoted_printable()
103 		    *body == '=' ||  in encode_quoted_printable()
104 		    (*body == '.' && body + 1 < end &&  in encode_quoted_printable()
105 		      (body[1] == '\n' || body[1] == '\r'))) {  in encode_quoted_printable()
106 			fprintf(fpo, "=%02X", (unsigned char)*body);  in encode_quoted_printable()
108 			prev = *body;  in encode_quoted_printable()
109 		} else if (*body < 33 && *body != '\n') {  in encode_quoted_printable()
110 			if ((*body == ' ' || *body == '\t') &&  in encode_quoted_printable()
111 			    body + 1 < end &&  in encode_quoted_printable()
112 			    (body[1] != '\n' && body[1] != '\r')) {  in encode_quoted_printable()
113 				fputc(*body, fpo);  in encode_quoted_printable()
114 				prev = *body;  in encode_quoted_printable()
116 				fprintf(fpo, "=%02X", (unsigned char)*body);  in encode_quoted_printable()
120 		} else if (*body == '\n') {  in encode_quoted_printable()
128 			fputc(*body, fpo);  in encode_quoted_printable()
129 			prev = *body;  in encode_quoted_printable()
131 		body++;  in encode_quoted_printable()