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Fix some bogus direct uses of realloc().

pg_dump/parallel.c was using realloc() directly with no error check.While the odds of an actual failure here seem pretty low, Coveritycomplains about it, so fix by using pg_realloc() instead.While looking for other instances, I noticed a couple of places inpsql that hadn't gotten the memo about the availability of pg_realloc.These aren't bugs, since they did have error checks, but verboselyinconsistent code is not a good thing.Back-patch as far as 9.3. 9.2 did not have pg_dump/parallel.c, nordid it have pg_realloc available in all frontend code.

1 parentd5bea1f commit3aa3ae8Copy full SHA for 3aa3ae8

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3 files changed

-15

lines changed

src/bin
- pg_dump
  - parallel.c
- psql
  - command.c
  - tab-complete.c

3 files changed

-15

lines changed

`‎src/bin/pg_dump/parallel.c`

Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1303,15 +1303,15 @@ readMessageFromPipe(int fd)`
`1303`	`1303`	`{`
`1304`	`1304`	`/* could be any number */`
`1305`	`1305`	`bufsize+=16;`
`1306`		`-msg= (char*)realloc(msg,bufsize);`
	`1306`	`+msg= (char*)pg_realloc(msg,bufsize);`
`1307`	`1307`	`}`
`1308`	`1308`	`}`
`1309`	`1309`
`1310`	`1310`	`/*`
`1311`	`1311`	`* Worker has closed the connection, make sure to clean up before return`
`1312`	`1312`	`* since we are not returning msg (but did allocate it).`
`1313`	`1313`	`*/`
`1314`		`-free(msg);`
	`1314`	`+pg_free(msg);`
`1315`	`1315`
`1316`	`1316`	`returnNULL;`
`1317`	`1317`	`}`

`‎src/bin/psql/command.c`

Lines changed: 1 addition & 6 deletions

Original file line number	Diff line number	Diff line change
`@@ -1130,12 +1130,7 @@ exec_command(const char *cmd,`
`1130`	`1130`	`while ((opt=psql_scan_slash_option(scan_state,`
`1131`	`1131`	`OT_NORMAL,NULL, false)))`
`1132`	`1132`	`{`
`1133`		`-newval=realloc(newval,strlen(newval)+strlen(opt)+1);`
`1134`		`-if (!newval)`
`1135`		`-{`
`1136`		`-psql_error("out of memory\n");`
`1137`		`-exit(EXIT_FAILURE);`
`1138`		`-}`
	`1133`	`+newval=pg_realloc(newval,strlen(newval)+strlen(opt)+1);`
`1139`	`1134`	`strcat(newval,opt);`
`1140`	`1135`	`free(opt);`
`1141`	`1136`	`}`

`‎src/bin/psql/tab-complete.c`

Lines changed: 2 additions & 7 deletions

Original file line number	Diff line number	Diff line change
`@@ -3975,13 +3975,8 @@ complete_from_variables(const char text, const char prefix, const char *suffix`
`3975`	`3975`	`if (nvars >=maxvars)`
`3976`	`3976`	`{`
`3977`	`3977`	`maxvars *=2;`
`3978`		`-varnames= (char**)realloc(varnames,`
`3979`		`- (maxvars+1)sizeof(char));`
`3980`		`-if (!varnames)`
`3981`		`-{`
`3982`		`-psql_error("out of memory\n");`
`3983`		`-exit(EXIT_FAILURE);`
`3984`		`-}`
	`3978`	`+varnames= (char**)pg_realloc(varnames,`
	`3979`	`+(maxvars+1)sizeof(char));`
`3985`	`3980`	`}`
`3986`	`3981`
`3987`	`3982`	`varnames[nvars++]=psprintf("%s%s%s",prefix,ptr->name,suffix);`

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Commit3aa3ae8

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3 files changed

3 files changed

`‎src/bin/pg_dump/parallel.c`

`‎src/bin/psql/command.c`

`‎src/bin/psql/tab-complete.c`

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