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Replace strncpy with memcpy

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gcc8 detects that strncpy is overwiritng the null terminating character
the source strings are already initialized to 0 so memcpy would do the same
job

Fixes
rn2903.c:153:5: error: 'strncpy' output may be truncated copying 16 bytes from a string of length 511 [-Werror=stringop-truncation]
     strncpy(dev->hardware_eui, dev->resp_data, RN2903_MAX_HEX_EUI64);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Khem Raj <raj.khem@gmail.com>
This commit is contained in:
Khem Raj 2018-05-07 19:53:33 -07:00
parent 37642f3b01
commit d314f26e02
2 changed files with 2 additions and 2 deletions
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2
src/ecezo/ecezo.c
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@ -488,7 +488,7 @@ int ecezo_send_command(const ecezo_context dev, char *cmd, char *buffer,
// our write buffer // our write buffer
char writeBuffer[ECEZO_MAX_BUFFER_LEN]; char writeBuffer[ECEZO_MAX_BUFFER_LEN];
strncpy(writeBuffer, cmd, ECEZO_MAX_BUFFER_LEN); memcpy(writeBuffer, cmd, ECEZO_MAX_BUFFER_LEN-1);
writeBuffer[ECEZO_MAX_BUFFER_LEN - 1] = 0; writeBuffer[ECEZO_MAX_BUFFER_LEN - 1] = 0;
int writelen = strlen(writeBuffer); int writelen = strlen(writeBuffer);

2
src/rn2903/rn2903.c
View File

@ -150,7 +150,7 @@ static rn2903_context _rn2903_postinit(rn2903_context dev,
rn2903_close(dev); rn2903_close(dev);
return NULL; return NULL;
} }
strncpy(dev->hardware_eui, dev->resp_data, RN2903_MAX_HEX_EUI64); memcpy(dev->hardware_eui, dev->resp_data, RN2903_MAX_HEX_EUI64);
return dev; return dev;
} }