FreeCalypso > hg > freecalypso-tools

annotate target-utils/simtest/volt.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 3884d823b36e
children
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3884d823b36e simtest: volt command implemented
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1 #include <sys/types.h>
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2 #include <strings.h>
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3 #include "types.h"
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4 #include "abbdefs.h"
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5
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6 void
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7 cmd_volt(argbulk)
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8 char *argbulk;
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9 {
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10 char *argv[2];
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11
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12 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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13 return;
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14 if (!strcmp(argv[0], "1.8"))
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15 abb_reg_write(VRPCSIM, 2);
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16 else if (!strcmp(argv[0], "3"))
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17 abb_reg_write(VRPCSIM, 3);
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18 else
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19 printf("ERROR: \"1.8\" or \"3\" argument expected\n");
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20 }