{"id":19387,"date":"2022-11-06T13:22:55","date_gmt":"2022-11-06T07:52:55","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-sending-null-data-over-a-socket\/"},"modified":"2022-11-06T13:22:55","modified_gmt":"2022-11-06T07:52:55","slug":"solved-sending-null-data-over-a-socket","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-sending-null-data-over-a-socket\/","title":{"rendered":"[Solved] Sending NULL data over a socket"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

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<\/div>\n
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Try<\/p>\n

WriteData(std::string(\"\\0\",1));\n<\/code><\/pre>\n
using your function or even:<\/p>\n
const char null_data(0);\nsend(newsockfd,&null_data,1,0);\n<\/code><\/pre>\n
to send it directly.<\/p>\n
\n
WriteData(\"00000000\");\n<\/code><\/pre>\n
Will actually sends 8 octets of 48 [decimal] (assuming your platform is ASCII which all modern systems are compatible with).<\/p>\n
However \\0<\/code> is the escape sequence used in string literals to represent the null character (that is the zero octet).<\/p>\n
There’s a conflation (mixing together) in C++ between the notions of characters and bytes that dates back to the earliest days of C and is pretty much baked in.<\/p>\n<\/p><\/div>\n
<\/div>\n<\/div>\n
            3<\/span> <\/p><\/div>\n<\/div>\n
[ad_2]<\/p>\n
solved Sending NULL data over a socket <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] Try WriteData(std::string(“\\0”,1)); using your function or even: const char null_data(0); send(newsockfd,&null_data,1,0); to send it directly. WriteData(“00000000”); Will actually sends 8 octets of 48 [decimal] (assuming your platform is ASCII which all modern systems are compatible with). However \\0 is the escape sequence used in string literals to represent the null character (that is the … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[513,424,1074],"class_list":["post-19387","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c11","tag-linux","tag-sockets"],"yoast_head":"\n[Solved] Sending NULL data over a socket - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-sending-null-data-over-a-socket\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Sending NULL data over a socket - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Try WriteData(std::string("",1)); using your function or even: const char null_data(0); send(newsockfd,&null_data,1,0); to send it directly. WriteData("00000000"); Will actually sends 8 octets of 48 [decimal] (assuming your platform is ASCII which all modern systems are compatible with). However  is the escape sequence used in string literals to represent the null character (that is the ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-sending-null-data-over-a-socket\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-06T07:52:55+00:00\" \/>\n<meta name=\"author\" content=\"Kirat\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kirat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-sending-null-data-over-a-socket\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-sending-null-data-over-a-socket\\\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#\\\/schema\\\/person\\\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] Sending NULL data over a socket\",\"datePublished\":\"2022-11-06T07:52:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-sending-null-data-over-a-socket\\\/\"},\"wordCount\":93,\"publisher\":{\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/#organization\"},\"keywords\":[\"c++11\",\"linux\",\"sockets\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-sending-null-data-over-a-socket\\\/\",\"url\":\"https:\\\/\\\/jassweb.com\\\/solved\\\/solved-sending-null-data-over-a-socket\\\/\",\"name\":\"[Solved] Sending NULL data over a socket - 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WriteData(\"00000000\"); Will actually sends 8 octets of 48 [decimal] (assuming your platform is ASCII which all modern systems are compatible with). However  is the escape sequence used in string literals to represent the null character (that is the ... 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