FreeCalypso > hg > freecalypso-tools

annotate rvinterf/libasync/init.c @ 965:2969032bdfac

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fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing The only 100% safe way to pass a NULL pointer as a function argument in K&R C is to cast 0 to a pointer type; failing to do so may cause mysterious bugs (invalid stack frames or garbage in argument registers) on 64-bit machines. This issue has already been fixed in most of FC host tools, but I just found some missed spots: passing of NULL UDH to PDU encoding functions in fcup-smsend[mult] in the case of single (not concatenated) SMS.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 01 Sep 2023 07:33:51 +0000
parents c1aadfcd185f
children
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1 /*
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2 * This module contains some common initialization code
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3 * for fc-shell and fc-tmsh.
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4 */
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6 #include <sys/types.h>
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9 #include <unistd.h>
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11 extern int sock;
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13 send_init_command(cmdpkt, cmdlen)
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14 u_char *cmdpkt;
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15 {
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16 u_char lenbuf[2];
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18 lenbuf[0] = 0;
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19 lenbuf[1] = cmdlen;
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20 write(sock, lenbuf, 2);
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21 write(sock, cmdpkt, cmdlen);
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22 }